" landing-cards-prop="{"getGk":[{"Title":"What is DPF ?","UrlName":"FA275892","LastModifiedDate":"02/05/2023","score":1.0006945650286507,"firstpublisheddate":"03/12/2015","answer":"Displacement Power Factor

Displacement Power Factor is caused by a reactive component in the load."},{"Title":"Can a customer call DPSG directly, for Drive and Softstart troubleshooting help?","UrlName":"FA89924","LastModifiedDate":"30/04/2026","score":1.000520923771488,"firstpublisheddate":"11/07/2003","answer":"

Issue : 
Drives Product Support Group direct contact number.

Product Line :
Altivar Drives & Altistart Soft Starts

Cause :
How to contact the support group for drive and soft start.

Resolution : 
Yes.  Call our Toll Free number at 1-888-778-2733.
Select option 1 to enter an existing case number, or key in your 5-digit Premier Support Contract number. 

OR

Select option 2 for Technical Support Queue
And
Select option 4 for AC Drives and Softstarts

Email address is drive.products.support@se.com

Chat live via chat portal : Live Chat Support

Normal hours are 8am to 8pm EST, Monday to Friday.  Emergency support is available outside normal hours for a fee or available to customers with a Premier Support Contract.

\n

 

\n\n\n\n\n\n\n\n\n\n"},{"Title":"What is the difference between Open and Close transition for Automatic Throwover Applications?","UrlName":"FAQ000271449","LastModifiedDate":"04/03/2026","products":"QED-6 Rear Connected Switchboards, QED-2 Power-Style Switchboard, Power-Zone 4 Arc Resistant Low Voltage Switchgear, Power-Zone® 4 Low Voltage Switchgear with Masterpact® NW and NT Circuit Breakers, Masterclad","score":1.0001736412571627,"firstpublisheddate":"02/09/2025","answer":"

Issue:

\n

Automatic Throwover.

\n

 

\n

Product Line:

\n

Switchgears and Switchboards.

\n

 

\n

Environment:

\n

Switchgears and Switchboards.

\n

 

\n

Cause:

\n

Define Open and Close Transitions.

\n

 

\n

Resolution:

\n

The Automatic Throwover System (ATS) operates when the primary source is shut down, transferring the load to the secondary source. In other words, the ATS disconnects the load from Source 1 and connects it to Source 2, which can be a secondary utility or an emergency generator, ensuring a steady power supply.

\n

In a closed transition, there is a brief period when both sources are connected to the load simultaneously, operating in a parallel system. In contrast, during an open transition, both sources cannot be connected at the same time.

\n

Switchgears and switchboards usually have ATS functionality, which can be controlled by a Programmable Logic Controller (PLC) or Protection Relays.

"},{"Title":"Do we have service entrance barrier kit for NQ main lug panelboard?","UrlName":"FAQ000261632","LastModifiedDate":"02/03/2026","score":1.0001736412571627,"firstpublisheddate":"07/01/2026","answer":"

Issue:

\n\n

Service Entrance application on NQ main lug panelboard

\n\n

 

\n\n

Product Line:

\n\n

NQ, NF, I-line Panelboards

\n\n

 

\n\n

Answer:

\n\n

 

\n\n

NQ panelboard service entrance barrier kit is for main breaker application only not on main lug.

\n\n

 

"},{"Title":"What does the term \"NEMA Type 1A\" refer to?","UrlName":"FA108545","LastModifiedDate":"19/11/2024","score":0.9888913005730161,"firstpublisheddate":"23/03/2004","answer":"NEMA Standards Publication 250-1997, "Enclosures for Electrical Equipment (1000 Volts Maximum)" no longer lists this enclosure type. This enclosure type is commonly accepted to be referring to a NEMA 1 enclosure with a gasketed cover."},{"Title":"What is the Nomenclature for Common Relays","UrlName":"FA212503","LastModifiedDate":"12/05/2026","score":0.973055337397707,"firstpublisheddate":"18/11/2010","answer":"\n

   

"},{"Title":"Insulation Resistance Testing and Humidity","UrlName":"FA354645","LastModifiedDate":"06/12/2023","score":0.9660057775181929,"firstpublisheddate":"11/07/2018","answer":"Issue:
How does humidity affect insulation resistance testing results?

Product Line:
Circuit Breakers

Environment:
Molded case and insulated case breakers

Resolution:
High humidity can drastically reduce insulation resistance testing results for circuit breakers.

Some equipment acceptance testing documents suggest values above 100 mega ohms and normally that is okay however high humidity can drastically reduce the results of the insulation resistance values.  Below is a sample of how higher humidity can reduce the IR values, making the 100 mega ohms acceptance testing values invalid.
40% humidity:  breaker IR value above 500 mega ohms, typical 1 G ohm*
75% humidity:  breaker IR value around 10 mega ohms*
95% humidity:  breaker IR value around 4 mega ohms*

*All values above are functional and conforming. Values derived from test data on Powerpact H frame breakers in a Schneider Electric laboratory.

The IEC 60947 standard, section 6.1.3.1 states that IR testing should be done below 50% humidity and states a 1 M ohm minimum IR value for a new breaker.

NEMA AB-4 recommends IR values for breakers, less than one mega ohm (1,000,000 ohm) should be investigated.  The Schneider Electric field testing and maintenance guide also states the same one mega ohm value, as written below.

Severe environmental conditions can reduce the dielectric strength of
molded case circuit breakers. Check insulation resistance during electrical
system testing.
To check the insulation resistance, perform the following steps:
1. De-energize and isolate the circuit breaker.
2. Clean the circuit breaker as described earlier.
3. Using a megohmmeter with a capacity of 500–1000 Vdc, apply voltage
from:
a. Each phase-to-ground with the circuit breaker on (circuit breaker
contacts closed).
b. Phase-to-phase with the circuit breaker on (circuit breaker contacts
closed).
c. Between each line and load terminal with the circuit breaker off
(circuit breaker contacts open).
4. Record resistance values. Resistance values of less than one mega ohm
(1,000,000 ohm) should be investigated.
 "},{"Title":"What is the difference between PNP and NPN when describing 3 wire connection of a sensor?","UrlName":"FA142566","LastModifiedDate":"03/07/2025","products":"","score":0.8783370570360768,"firstpublisheddate":"03/05/2012","answer":"

Most industrial proximity sensors  (inductive, capacitive, ultrasonic and photo electric) are solid state.

The term solid state refers to the type of components used within the sensor. Solid state electronic components such as transistors are used to switch the output of the sensor upon detection of an object.

Two specific types of 3 wire sensors are available; PNP and NPN. The difference is a result of the internal circuit design and type of transistors used. Refer to attached document for simple explanation of the two.

A key point to observe is that PNP and NPN has nothing to do with whether the sensor is normally open (N/O) or normally closed (N/C), i.e. a PNP sensor may be either N/O or N/C as can an NPN be either N/O or N/C.

Please note that the subject of this FAQ is specifically related to wiring PNP/NPN outputs for sensors, not to give a detailed understanding of transistor technology. However, for ease of understanding please see attached a page extracted from our Practical Aspects book, showing (in brief) transistor terminology and circuit diagrams. Further learning material regarding PNP and NPN transistors can be found online from several sources. 

 
Why two types?

The selection of a PNP sensor verses an NPN sensor is determined by the nature of the circuit the device is to be used in. When used in a traditional relay type control circuit, it is normally possible to use either the PNP or the NPN type of sensor as shown below. PNP sensors tend to be more commonly used. 

Wiring

Traditional relay type control circuit;

                      

Use with a programmable logic controller (PLC).

When selecting a sensor to be used with a PLC, it is very important that the sensor matches the type of PLC input card to be used.
Two types of input cards exist, those that 'sink'  current (also known as positive logic) and those that 'source' current (also known as negative logic). It is worth mentioning, that whilst the terms sinking / sourcing and positive / negative logic are well known in some industries, they are not always commonly used terms. It is therefore important to identify the type of sensor to be used with the PLC card based on the PLC manufacturer's documentation and / or wiring diagrams.

Most common in Europe is the 'sinking' type of input, these will be used with the PNP sensor as shown below. Less common nowadays are input cards that 'source', these were popular in Asia and require the NPN type of sensor in order to operate correctly. Many modern PLC input cards can be configured and wired to be either 'sinking' or 'sourcing'  although it will usually necessitate all inputs on a particular input card being configured the same. 

NOTE the dotted line in the following diagram is optional and may or may not be required, depending on your hardware/setup. The key wires to take note of are solid red, black and blue wires. 

  
 

\n

 

"}],"getPv":[{"Title":"Video: How to perform a cold start and brain dead on Smart-UPS","UrlName":"FA156611","LastModifiedDate":"22/04/2026","products":"APC Smart-UPS, APC Smart-UPS On-Line","score":1.001202244189153,"firstpublisheddate":"10/08/2012","answer":"Issue:
This document explains how to perform the Cold Start and Brain Dead procedures.

Product Line:
Smart-UPS

Environment:
All models, all serial numbers

Cause:
The Cold start procedure is used to determine if a UPS is functional if it will not turn on when plugged into utility power.
The Brain Dead procedure performs a hard reset of the Smart-Ups microprocessor. It does not however reset saved preferences.

Resolution:

Cold Start:
This is a great way to establish if a UPS will not turn on due to bad input power. Never use a Cold Start to troubleshoot a bad battery LED as it will clear the light most every time even if the battery is actually bad. This is because the self-test is comparing the battery health compared to the load attached. If there is no load attached, the battery will appear healthy.
 
1) Turn off and unplug the Smart-UPS from wall. Remove any attached load.
2) Press and hold the power button (labeled ""I/TEST"" on legacy non-LCD screen units) on the front of the UPS until you hear a LONG beep.
3) Let go DURING the long beep. If you let go after the beep ends you will need to try again.
4) UPS should go through its' normal self test and end up on battery with 4 beeps every 30 seconds. This shows that the UPS is functioning correctly and can both pass a self test and function on battery.
5) You can now plug your UPS back into the wall. If the input power is acceptable the UPS will transfer back online.

If your UPS will not cold start, it either means that the UPS has suffered an internal hardware failure or that it does not have a functional internal battery.
Please contact APC Technical support for further assistance.

The following video demonstrates how to perform a Cold Start on a SUA series Smart-UPS:




Brain Dead:
If you have an SUA or SUM unit, you can use this procedure to switch between Serial and USB communications. It forces a "reboot" of the internal microprocessor, but it will not erase any stored settings.
Useful for basic troubleshooting as it resets the logic of the UPS. 
 
For SU, SUA, SUM, or SURT Units:
1) Turn off and unplug UPS from wall
2) Press and hold the OFF button again (Alternately, you could disconnect the internal battery)
3) You may see a quick flash of the LED's and you should hear an audible ""click"" from the UPS.
4) Plug UPS back into the wall and turn UPS back on
 
For SMC, SCL, SMT, SMTL, SMX, and SRT Units:
1) Turn off and unplug UPS from wall
2) Disconnect Battery
3) You may hear an audible ""click"" from the UPS.
4) Reconnect battery, plug unit back in the wall, and turn UPS back on

The following video demonstrates how to perform a Brain Dead Reset on a SMT, SMTL & SMX series Smart-UPS:



The following video demonstrates how to perform a Brain Dead Reset on a SUA series Smart-UPS:



The following video demonstrates how to perform a Brain Dead Reset on a SRT series On-Line Smart-UPS:

"},{"Title":"Video: Installing Current Transformers - CT orientation with regard to either \"H1\" designation, Arrow, or White Dot","UrlName":"FA203850","LastModifiedDate":"22/04/2026","products":"METSECTSP5A2030U, METSECTSP5A4240U","score":1.0005343307507346,"firstpublisheddate":"27/11/2007","answer":"

Issue
Current transformers should be oriented in a particular direction, with one side pointing toward the source of electricity (upstream or high side), and the other pointing toward the load (downstream or low side)

Product Line
Current Transformers

Environment
Metering and Power Monitoring

Cause
Current Transformers (CT's) may easily installed backwards on their respective load conductors. It saves time and money to ensure that they are installed with the correct orientation before energizing the load.

Resolution
*Warning: Installation and maintenance of this device should only be performed by qualified, competent personnel that have appropriate training and experience with high voltage and current devices. Failure to follow the instructions / warnings in the Meter Installation Guide can result in permanent damage to the meter, severe injury or death.

CT's installed backwards provide inverted signals to the meters to which they are connected. Most meters note the polarity of the signal received from the current transformers, and use that polarity to help determine the direction of the flow of electricity, assigning a positive or negative value to calculated power and energy. It is imperative that current transformers are installed correctly with respect to their orientation on the load conductors that pass through them.

Most current transformers have at least some sort of indicator for orientation on the conductor, usually one of the following ways:

\n\n

1. "H1" - The H1 represents the primary current with a Line facing direction. A current transformer with "H1" printed on one side is usually intending for that H1 to be on the side of the CT when the energy is being provided from, generally referred to as the high side, utility side, line side, or source. These CT's may or may not also have an "H2" representing the side facing the load, or low side.
2. Arrow - there may be an arrow on the current transformer which indicates the flow of power. These CT's should be installed such that the arrow is pointing toward the load to be measured. The Arrow points downstream, the load side, the low side.
3. White Dot - Some CT's may have a white dot, or a dot of another color, like green, blue, or red. The dot only serves as an indication of the side of the current transformer intended to face the source of electricity, or line side, the high side. The dot should face that high side, the source of electricity.

\n\n

Note: Certain low end meters only use an absolute value of the signal coming into the current input, so the orientation is often negligible in those cases. Meters of this type are generally incapable of discerning the difference between energy delivered into the load and energy received back from the load when that load acts as a source of power instead of as a user of power.

 

\n
Square D Current and Voltage Instrument Transformers Catalog"},{"Title":"Video: How to properly short a CT shorting block?","UrlName":"FA274542","LastModifiedDate":"29/04/2026","products":"3090TB6, 3090TB4","score":1.0001335826876836,"firstpublisheddate":"20/11/2015","answer":"

Product Line
3090 SCCT
Current Transformer Shorting Block

Environment
Hardware installation/modification

Resolution
*Warning: Installation and maintenance of this device should only be performed by qualified, competent personnel that have appropriate training and experience with high voltage and current devices. Failure to follow the instructions / warnings in the Meter Installation Guide can result in permanent damage to the meter, severe injury or death. 

CT shorting blocks are used to create an intermediate contact point between the meter and load where it is safe to perform wiring alterations. CT shorting blocks are wired such that the negative leads of the current transformers are connected to the same node and tied to ground.

Four or Six pole shorting blocks can be used in applications with up to three current transformers as shown in the diagram below, which allows each current transformer lead to have an individual contact point. 

 

In order to safely modify the current transformer wiring at the meter or metering side of the CT shorting block, the positive leads of the current transformers must also be shorted out to the CT shorting strip using the additional screws which are usually found on the corners of the shorting block.

Once the current transformers are properly shorted using the CT shorting block, it is safe to make wiring modifications on the meter side of the shorting block.

Once the intended wiring modifications have been completed, you will need to remove the shorting screws from the positive CT lead terminals in order to return the meter to proper operation.

Be aware that incorrect alterations can result in arc flash.

For further information and documentation regarding Schneider part numbers for shorting blocks, click here

"},{"Title":"Network Management Card (NMC) Password Reset Procedure","UrlName":"FA156075","LastModifiedDate":"22/04/2026","products":"Network Management Cards","score":0.8580779359566428,"firstpublisheddate":"10/08/2012","answer":"Issue
Forgotten or lost Network Management Card (NMC) password. This article applies to Network Management Card 1, 2 and 3, as well as any devices that contain an embedded version of these cards such as a Rack Power Distribution Unit (PDU) or Rack Automatic Transfer Switch (ATS).

Product Line\n

• Web/SNMP Card - AP9606

\nDevices with an embedded Web/SNMP Card include (but are not limited to): Environmental Monitoring Unit 1 (AP9312TH)\n\n

• Network Management Card 1 - AP9617, AP9618, AP9619

\nDevices with an embedded Network Management Card 1 include (but are not limited to): Metered/Switched Rack PDUs (AP78XX, AP79XX), Rack Automatic Transfer Switches (AP77XX, Environmental Monitoring Units (AP9320, AP9340, NetBotz 200)\n\n

• Network Management Card 2 - AP9630/AP9630CH, AP9631/AP9631CH, AP9635/35CH

\nDevices with an embedded Network Management Card 2 include (but are not limited to): 2G Metered/Switched Rack PDUs (AP84XX, AP86XX, AP88XX, AP89XX), Rack Automatic Transfer Switches (AP44XX), Certain Audio/Video Network Management Enabled products, Smart-UPS Online (SRT).\n\n

• Network Management Card 3 – AP9640, AP9641, AP9643

\n \n\n

• Network Management Card for Easy UPS - AP9544

\n
​  
Environment\n\n

• All firmware versions (unless otherwise noted)
• All serial numbers
  \t 

\nCause
The Network Management Card's administrator username and/or password has been forgotten or lost and requires a special reset procedure in order to regain access.


Resolution

These steps will require local access to NMC1 and NMC2 device(s) and require you to directly connect to it with the APC serial configuration cable. Browse the steps below for your device model in order to reset the Administrator's password.

NOTE: Connecting a non-APC serial cable during the procedures below can cause unwanted erratic device behavior.

Web/SNMP Card & Network Management Card 1 Procedure 

In addition, if you are trying to reset a password on a UPS that has more than one SmartSlot accessory installed in it (i.e. AP9607 Interface Expander), it may be required to temporarily remove the other SmartSlot accessories to gain direct serial access to the NMC console interface. Please reference that accessory's User Guide on how to do that. It is also important to make sure that the accessories are installed in the correct order, referencing this document.

1.) Select a serial port at the local computer, and disable any service that uses that port.

2.) Refer to the chart below and obtain the correct communication cable for the Network Management Card 1-enabled device:
 \n

Device	Configuration Cable Part Number
Most UPS devices with a DB-9 style serial port	940-0024 or 940-1524 (DB-9 to DB-9)
Rack PDU (AP84XX*, AP86XX*, AP88XX*, AP89XX*, AP78XX, AP79XX)	940-0144 (RJ-12 to DB-9)
1st Generation Rack Automatic Transfer Switch (AP7750, AP7701, AP7722)	940-1000 (DB-9 to DB-9)
2nd Generation Rack Automatic Transfer Switch (AP77XX, excluding 1st Generation SKUs)	940-0144 (RJ-12 to DB-9)
4th Generation Rack Automatic Transfer Switch (AP44XX)	940-0144 (RJ-12 to DB-9)
NetBotz 200/Environmental Monitoring (AP9319, AP9340, AP9320)	940-0103 (DB-9 to DB-9)
Rack Air Removal Unit (ACF400, ACF402)	940-0103 (DB-9 to DB-9)

\n* Indicates the device uses NMC2 password reset procedure.

3.) Connect the serial cable to the selected port on the computer and to the configuration port at the UPS/Network Management Card Embedded device.


4.) Run a terminal program (such as HyperTerminal®) and configure the selected port as follows, depending on your device model type (refer to the user's manual if the device is not listed below):

 \n

Device	COM Port Settings
Most UPS devices with a DB-9 style serial port	2400 bps, 8 data bits, no parity, 1 stop bit, and no flow control
Rack PDU 1G and 2G**	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control
1st Generation Rack Automatic Transfer Switch (AP7750)	19,200 bps, 8 data bits, no parity, 1 stop bit, and no flow control for initial configuration, 2400 bps for NMC configuration - refer to user's manual for more information
2nd Generation Rack Automatic Transfer Switch (AP77XX, except AP7750)	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control
4th Generation Rack Automatic Transfer Switch (AP44XX)	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control
NetBotz 200/Environmental Monitoring (AP9319, AP9340, AP9320)	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control
Rack Air Removal Unit (ACF400, ACF402)	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control

\n
**Indicates the device uses NMC2 password reset procedure.

NOTE: For three phase UPS devices, it will be necessary to remove the communication cable from the port labeled "Display" that connects to the PowerView display prior to completing this reset procedure.

5.) Press ENTER, repeatedly if necessary, to display the User Name prompt. If you are unable to display the User Name prompt, verify the following:\n\n

• The serial port is not in use by another application.
• SCROLL LOCK is off/disabled.
• The terminal settings are correct as specified in step 3.
• The correct cable is being used as specified in step 2.

\n
6.) Press the Reset button once. The Status LED will flash rapidly (almost immediately) while alternating between orange and green. NOTE: If you are using an AP9606, proceed to step 7. Press the Reset button again a second time immediately while the LED is rapidly flashing - which will cause the LED to then go off - in order to reset the User Name and Password to their defaults temporarily (the default User Name and password are both apc).
 
7.) Press ENTER as many times as necessary to redisplay the User Name prompt, then use the default, apc, for the user name and password. (If you take longer than 30 seconds to log on after the User Name prompt is redisplayed, you must repeat step 5 and log on again.)
 
8.) From the Control Console menu, select System, then User Manager.
 
9.) Select Administrator, and change the User Name and Password settings, both of which are now apc. 

10.) Press CTRL+C, log off, reconnect any serial cable you disconnected, and restart any service you disabled.

NOTE: For Network Management Cards running lower than version 2.5 firmware (or models AP9606), step 6 (the second reset press) will not be necessary.

Network Management Card 2 Procedure

NOTE: On v6.X.X firmware, the Super User or Administrator level accounts can reset other Administrator, Device, Read Only, and Network Only user passwords. This procedure may not be required if the Super User password or at least one set of Administrator credentials are known.

You can use a local computer that connects to the Network Management Card through the serial port to access the command line interface. This port is labeled "Console" and is on the Network Management Card itself. You'll also need to press the pinhole reset button - access is located on the front of the Network Management Card to the right of the Ethernet jack.

1.) Select a serial port at the local computer, and disable any service that uses that port.

2.) Connect the provided serial cable (APC part number 940-0299) to the selected port on the computer and to the configuration port at the Network Management Card.

3.) Run a terminal program (such as HyperTerminal®) and configure the selected port for 9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.
 
4.) Press ENTER, repeatedly if necessary, to display the User Name prompt. If you are unable to display the User Name prompt, verify the following:\n\n

• The serial port is not in use by another application.
• SCROLL LOCK is off/disabled.
• The terminal settings are correct as specified in step 3.
• The correct cable is being used as specified in step 2.

\n
5.) Press the Reset button once (please note, sometimes aligning a paper clip or similar to the pinhole reset button can be difficult. It is suggested to hold the paper clip or similar device towards the top of the reset button hole and press gently until the alignment is made). Wait 5-7 seconds (the Status LED will be off while you wait) and then after that period of time, the Status LED will flash rapidly while alternating between orange and green. Press the Reset button a second time immediately while the LED is rapidly flashing - which will cause the LED to then go off - in order to reset the User Name and Password to their defaults temporarily (the default User Name and password are both apc).

6.) Press ENTER, repeatedly if necessary, to display the User Name prompt again, then use the default, apc, for the User Name and password. (If you take longer than 30 seconds to log on after the User Name prompt is redisplayed, you must repeat step 5 and log on again.)

7a.) For v5.X.X firmware only: At the Command Line Interface, use the following commands to change the User Name and Password settings, both of which are now temporarily apc:
 
user -an yourAdministratorName
user -ap yourAdministratorPassword

For example, to change the Administrator user name to Admin, type:

user -an Admin
 
7b.) For v6.X.X firmware only: At the Command Line Interface, use the following commands to change the Password setting for the Super User account, for which the username is always apc, and the password is now temporarily apc:

user -n apc -pw yourNewSuperUserPassword
 
For example, to change the Super User's password to p@ssword, type:
 
user -n apc -pw p@ssword

Secondly, the Super User account can be disabled for security reasons. In addition to possibly needing to reset its password, you may need to re-enable the account if no other administrative access is available or known. To do that, type:
 
user -n apc -e enable
 
Because the Super User can also reset the password for any account, you can reset other user's passwords as well. For example, to change the password for user upsadmin too, type:
 
user -n upsadmin -pw p@ssword
 
NOTE: Per the v6.X.X's firmware User Guide, please note that changing user name information is no longer supported via the Command Line Interface. If a user's user name needs to be changed, it must be deleted and re-created. The Super User will also have access now to log in and adjust any other user's password.
 
8.) Type quit or exit to log off, reconnect any serial cable you disconnected, and restart any service you disabled.
 
The following video explains the password reset procedure for Network Management Card 2 with firmware revisions of v6.X.X.

https://www.youtube.com/watch?v=PSzkHWVQfAo

Network Management Card 3 / Network Management Card for Easy UPS Procedure

NOTE: Resetting your NMC will reset the card to its default configuration.

If you forget your NMC’s password, you must use the Reset button on the NMC to wipe all configuration, including the password.

1.) Hold down the Reset button for 20-25 seconds, ensuring the Status LED is pulsing green during this time.

2.) When the Status LED change to amber or orange, release the Reset button to allow the NMC to complete its reboot process.

3.) After the NMC reboots, you must re-configure your NMC. For more information, see the NMC Installation Guide on the APC website.
NOTE: It is recommended you export the config.ini file after configuring your NMC to prevent loss of data in the event of a lost password.



 "},{"Title":"How do I configure APC Network Management Card network settings?","UrlName":"FA156064","LastModifiedDate":"22/04/2026","products":"PowerChute Network Shutdown","score":0.8349363255855374,"firstpublisheddate":"10/08/2012","answer":"

Issue
An APC Network Management Card must be configured with network settings before it can communicate on the network. Once the cards have been configured with an IP address, Subnet Mask, and Default Gateway the cards can be accessed, managed, and controlled from other computers on the network. There are multiple configuration options available, outlined below, for each family of Network Management Cards or devices that have embedded versions of these products.
 
Product Line

\n

• Web/SNMP Card - AP9606

\n

Devices with an embedded Web/SNMP Card include (but are not limited to): Environmental Monitoring Unit 1 (AP9312TH)

\n

• Network Management Card 1 (NMC1) - AP9617, AP9618, AP9619

\n

Devices with an embedded Network Management Card 1 include (but are not limited to): Metered/Switched Rack PDUs (AP78, AP79), Rack Automatic Transfer Switches (AP77, Environmental Monitoring Units (AP9320, AP9340, NetBotz 200)

\n

• Network Management Card 2 (NMC2) - AP9630/AP9630CH, AP9631/AP9631CH, AP9635/AP9635CH

\n

Devices with an embedded Network Management Card 2 include (but are not limited to): Early model 2G Metered/Switched Rack PDUs (AP84, AP86, AP88, AP89), Rack Automatic Transfer Switches (AP44XX), Certain Audio/Video Network Management Enabled products, Early model Smart-UPS Online (SRT).

\n

• Network Management Card 3 (NMC3) - AP9640, AP9641, AP9544

\n

Devices with an embedded Network Management Card 3 include (but are not limited to): Metered/Switched Rack PDUs (AP84, AP86, AP88, AP89, APDU9), Rack Automatic Transfer Switches (AP44A), Smart-UPS Online (SRT).

Environment 

\n

• All serial numbers
• All firmware revisions (unless otherwise noted)
• Unconfigured Network Management Card-enabled devices
• Network Management Card devices requiring reconfiguration

\n

Cause
A Network Management Card requires TCP/IP settings prior to being accessible via a network.


Resolution
Network Management Card 1:

In regards to Network Management Card 1 (AP9617, AP9618, AP9619) or devices with an embedded Network Management Card 1 (such as a AP78 or AP79 Rack PDU, Environmental Monitoring Unit, etc), there are three available options to configure the Network Management Card (NMC) with it's initial settings: the Wizard, terminal emulation (local/direct connection), and Address Resolution Protocol (ARP).

Default boot mode: DHCP/BootP - With DHCP Option 43 Vendor Cookie required to accept DHCP Offer.

By default, all of APC's Network Management Card 1 based devices are configured for a boot mode of DHCP/BOOTP. If using DHCP, a vendor cookie (DHCP Option 43) is required by default. If it is not configured on your DHCP server, the card will not accept an IP address. You can use the methods below to configure/access the card if you do not wish to use DHCP/BOOTP. Please see APC KB article FA156110 for more information on DHCP options.

Network Management Card 2/3

Default boot mode: DHCP Only - With DHCP Option 43 Vendor Cookie NOT required to accept DHCP Offer.

By default, all of APC's Network Management Card 2 and 3 based devices (such as an AP8XX Next Gen Rack PDU (NMC2 only)) with AOS 5.1.1 or higher, are configured for DHCP Only with no vendor cookie required by default. They will obtain an IP address automatically so you may need to refer to your DHCP server to find out what IP address it obtained. Please see APC KB article FA156110 for more information on DHCP options. 

All APC devices have a MAC address that begin with 00 C0 B7 which may help while reviewing your DHCP Client List.

In order to configure your Network Management Card-enabled device, select one of the available configuration methods listed below:

\n

• Device IP Configuration Wizard - (NMC1/NMC2/NMC3)
• Terminal Emulation (Local/Direct connection) - (NMC1/NMC2/NMC3)
• ​Address Resolution Protocol (ARP) - (NMC1/NMC2)
• ​DHCP Option 12 - (NMC2 v5.1.5 or higher)
• ​Smart-UPS front panel LCD - (available on supported SMT, SMX, and SRT Models with NMC2/NMC3)

\n

​
Configuration Option 1 - Device IP Configuration Wizard (NMC1/NMC2/NMC3): https://www.se.com/us/en/download/document/MFOI-AXRPRY/

The Device IP Configuration Wizard is a Windows application designed specifically to remotely configure the basic TCP/IP settings of Network Management Cards. The Wizard is included on the CD bundled with the cards, and available to download from the APC website. This utility supports NMC1/NMC2 cards that have firmware version 3.x.x or higher.

Please keep in mind that with certain firmware releases, the NMC can obtain a DHCP address and also prevent the wizard from working correctly. You may want to check your DHCP client list for any MAC addresses beginning with 00 C0 B7, which indicates an APC address. In addition, check the card you are trying to configure. Any card with valid IP settings will have a solid green status LED.

If using the wizard over the network, please note, the previously unconfigured NMC must be on the same subnet as the computer running the wizard. An alternative method to using the wizard via the network method may be to use a direct network connection between a computer and the NMC you are trying to configure and running the wizard. Ultimately, your computer and the NMC will be on a peer to peer network which will allow for configuration as well.

NOTE: This wizard will also not work with any Network Management Card family if the NMC was previously configured and not in DHCP or BOOTP boot mode. v5.0.0 and higher of the wizard, available from apc.com, allows you to locate unconfigured cards or locate configured cards on the network by IP range.

NOTE: The Device IP Configuration Wizard is not able to assign the IP address, subnet mask and default gateway settings of Network Management Cards running AOS 6.5.0 and 6.5.2. This is a known issue and has been resolved with AOS 6.5.6.

NOTE: In NMC2 firmware version 6.8.0 and higher, and in NMC3, you cannot search for assigned devices already on the network using an IP range unless you enable SNMPv1 and set the Community Name to “public”.
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Configuration Option 2 - Terminal Emulation (local/direct connection - NMC1/NMC2/NMC3)

Terminal Emulation is a built-in function on most operating systems (ex: HyperTerminal). Before using any terminal emulation program, any services using the COM ports must be stopped. For example, if you are running a serial version of APC's PowerChute software, the APC UPS service must be stopped prior to running the terminal program. Then, follow these instructions:
 
NOTE: If you have the scroll lock on, HyperTerminal will not communicate properly with an APC UPS or accessory.
Connect to the UPS/device serial port using the correct APC configuration cable. Part numbers are below for common devices. Please refer to the User Guide if you are not sure or your device is not listed.
 
!WARNING! - Connecting a non-APC serial cable to your device can cause unwanted, erratic device behavior. 

\n

Device	Configuration Cable Part Number
Most UPS devices with a DB-9 serial port	940-0024 or 940-1524 (DB-9 to DB-9)
Rack PDU (AP78XX, AP79XX, AP84XX**,AP86XX**, AP88XX**, AP89XX**)	940-0144 (RJ-12 to DB-9)
1st Generation Rack Automatic Transfer Switch (AP7750 only)	940-1000 (DB-9 to DB-9)
2nd Generation Rack Automatic Transfer Switch (AP77XX, excludes AP7750)	940-0144 (RJ-12 to DB-9)
4th Generation Rack Automatic Transfer Switch (AP44XX**)	940-0144 (RJ-12 to DB-9)
NetBotz 200/Environmental Monitoring (AP9319, AP9340, AP9320)	940-0103 (DB-9 to DB-9)
Rack Air Removal Unit (ACF400, ACF402)	940-0103 (DB-9 to DB-9)

\n

**This device is NMC2 based so proceed to NMC2/NMC configuration instructions.


After connecting the correct cable, start the terminal emulation program of your choice. Configure port settings appropriately for the device you are attached to (refer to the User Guide for the particular device). Commonly used port settings are as follows:
 

\n

Device	COM Port Settings
Most UPS devices with a DB9 serial port	2400 bps, 8 data bits, no parity, 1 stop bit, and no flow control.
Rack PDU	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.
1st Generation Rack Automatic Transfer Switch (AP7750)	19,200 bps, 8 data bits, no parity, 1 stop bit, and no flow control for initial configuration, 2400 bps for NMC configuration - refer to user's manual for more information
2nd Generation Rack Automatic Transfer Switch (AP77XX, excludes AP7750)	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control
NetBotz 200/Environmental Monitoring (AP9319, AP9340, AP9320)	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.
Rack Air Removal Unit	9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.

\n

 

\n

• Apply the port settings to establish the connection.
• Press <Enter> 3-5 times to display the username prompt.*
• Use the default username and password of "apc".

\n

You are now in the control console.

\n

• Choose "Network"
• Choose "TCP/IP"
• Choose "Boot mode"
• Change Boot mode to "Manual"
• Set the system IP, subnet mask, and default gateway.
• Accept changes.
• Press Ctrl-C to return to main menu.
• Log out of console to save changes.

\n

Now, you can remotely log into the NMC using web access or Telnet.

NOTE: *Does not apply to 1st Generation Rack Automatic Transfer Switches for "out of the box" configuration. Refer to User Guide.

Network Management Card 2 (AP9630, AP9631), Network Management Card 3 (AP9640, 19641)and related accessories require different configuration settings in order to be configured locally.

To connect to a NMC2, you must use the 940-0299 Tip, Ring Sleeve (TRS) to DB9 cable and connect it directly to the NMC2 into the 2.5mm jack labeled "console" rather than the UPS serial port. To connect to a NMC3, use the provided 960-0603 micro-USB cable.

\n

• Within a UPS, the NMC2 devices communicate with the following port settings:

\n

9600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.

\n

• Apply the port settings to establish the connection.
• Press enter 3-5 times to display the username prompt.
• Use the default username and password of "apc".
   

\n

You are now in the command line control console.

\n

• Type help or ? to display all available commands.
• Use the tcpip command to configure manual network settings to assign manual IP settings. The tcpip command automatically changes your boot mode to manual once you submit it. It is necessary to issue a reboot command immediately after assigning your manual settings. Text in italics indicates a variable.

\n

 apc> tcpip -i yourIPaddress -s yourSubnetMask -g yourDefaultGateway
apc> reboot

Example:
apc> tcpip -i 159.216.45.39 -s 255.255.254.0 -g 159.216.45.1
apc> reboot

Use the boot command to change the Network Management Card's boot mode ONLY if you are using DHCP or BootP.

Usage: boot -- Configuration Options
boot [-b dhcpBootp* | dhcp | bootp | manual>] (Boot Mode)
[-a remainDhcpBootp | gotoDhcpOrBootp>] (After IP Assignment)
[-o stop | prevSettings>] (On Retry Fail)
[-c enable | disable>] (Require DHCP Cookie)
[-s retry then stop #>] (Note: 0 = never)*
[-f retry then fail #>] (Note: 0 = never)*
[-v vendor class>]
[-i client id>]
[-u user class>]

*DHCP/BootP and retry options are only available in NMC2 AOS 5.0.X. It is no longer an option in AOS versions > 5.0.X
For a video representation of NMC2 configuration via terminal emulation, refer to the video below:



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Configuration Option 3 - ARP (Address Resolution Protocol - NMC1/NMC2)
Address resolution protocol (ARP) can also be used to configure the NMC. The MAC Address of the NMC is needed for this method of configuration. The MAC address is located on the quality assurance slip that shipped with the NMC, and is also located on a white sticker on the NMC itself. From a computer on the same subnet as the unconfigured NMC, follow these instructions:

\n

• Open a command prompt or terminal window and type the following (replacing <IP address> and <MAC Address> with actual values): 
  NOTE: On Windows operating systems, you may need to run the command prompt as Administrator in order to use the arp command. To do this, right click on the Command Prompt shortcut and select "Run as Administrator."

\n

arp<space>-s<space><IP address><space><MAC Address>
You must use the following format for the MAC Address: xx-xx-xx-xx-xx-xx

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• On Mac OS X specifically: sudo<space>arp<space>-s<space><IP address><space><MAC Address>
• Next, use Ping with a size of 113 bytes to assign the IP address defined by the ARP command.

\n

For the IP address defined in the first step, use one of the following:

\n

• Windows command format: ping<space><IP address><space>-l<space>113\n
  • The -l option is the letter L but must be lowercase when executing the command, as noted above.
  \n
• Linux command format: ping<space><IP address><space>-s<space>113
• Mac OS X command format: ping<space>-s<space>113<space><IP address>
• Now, you can Telnet to the card by typing: telnet <IP address>
• Use "apc" for username and password.
• Configure/apply any additional changes based on the instructions above or in the user's manual.
• Log out to save changes.

\n

NOTE: Users will be unable to configure the IP address setting by using ARP on the network management cards running AOS 6.5.0 and 6.5.2. This is a known issue and has been resolved with AOS 6.5.6. 
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Configuration Option 4 - DHCP Option 12 (NMC2 devices, AOS 5.1.5 or higher only)
Beginning with the AOS 5.1.5 release, the NMC2 has implemented Option 12 (Host Name) as part of the DHCP request. DHCP option 12 uses the devices' host name. As of AOS 5.1.5, the default NMC host name will be apcXXYYZZ, where XXYYZZ represents the last six characters of the MAC Address (enclosed on a slip with the shipped product) of the NMC. It is also available on a sticker on the NMC2 itself.

If your network is setup correctly (described below), you will be able to access "unconfigured" / just-out-of-the-box NMCs by referencing the NMC as follows:

1.At a terminal (or DOS) prompt, ping the NMC using ping apcXXYYZZ

2. In a web browser, access the NMC web interface using http://apcXXYYZZ

NOTE: Tests have shown that even with the network properly configured, the ability to reference devices that support this option is not immediate. In APC tests, it took between 6 and 16 minutes before this functionality worked.  However, it worked every time (max wait 16 minutes).  Depending on your network setup, your experience may differ.

Network Setup:
In order for option 12 to work properly, the network segment must be configured with the "Dynamically update DNS A and PTR records for DHCP clients that do not request updates ..." (or equivalent) box selected.

See below, as an example:

 Return to Top

Configuration Method 5 - via Smart-UPS front panel LCD - (Supported SMT, SMX, and SRT* Models with UPS NMC2/NMC3)

*NOTE: This method can be used to configure the embedded UPS NMC2 or optional secondary NMC2 for SRT models.

Some newer Smart-UPS models provide the capability to configure the Network Management Card 2/3 (NMC2/NMC3) IP address, subnet mask, and gateway using the front panel LCD display menu. Before proceeding, ensure your NMC2/NMC3 is installed in the UPS SmartSlot and is powered, indicated by the status LED on the NMC2/NMC3.

Your UPS display will look similar to one of the following types shown below. Press ESC to bring up the Menu, if not already displayed.
 

In order to access the NMC2NMC3 configuration functionality through the UPS LCD, the LCD menu must be put into Advanced Mode. This is accomplished by going into the Configuration menu and changing the Menu Type from Standard to Advanced on the UPS's LCD menu. Upon changing this menu setting, you will be able to configure the UPS NMC2/NMC3 by going back into the Configuration menu.

NMC2/NMC3 boot mode options available in Configuration Menu:

\n

• DHCP
• DHCP & BOOTP
• Manual

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If you choose Manual mode, enter the IP address, subnet mask, and default gateway. DHCP (the NMC2 default AOS v5.1.1 and higher) and DHCP & BOOTP models will not require any further configuration beyond accepting the setting. After you've finished, the Network Management Card will reboot within ~1 minute after settings are applied, and the current IP settings will be displayed under the UPS LCD's About menu.

NOTE: If your UPS LCD menu doesn't have the Configure NMC: option after putting the UPS LCD menu in Advanced mode, you may have one or more of the following happening:

\n

• The NMC2/NMC3 is not being recognized by the UPS/UPS SmartSlot.
• The UPS firmware doesn't support this functionality

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Consult the user's guide that came with the UPS or contact your local Technical Support team with any concerns.

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"},{"Title":"Video: How to locate catalog number, series number, and date code on QO and Homeline load centers.","UrlName":"FA274608","LastModifiedDate":"11/11/2024","products":"QO(B) Circuit Breakers, QO Standard Load Centers, HomeLine® Circuit Breakers, Homeline Standard Load Centers","score":0.723133553002642,"firstpublisheddate":"09/11/2015","answer":"Issue:
Determine product date code

Product Line:
QO and Homeline Load Centers

Resolution:
SEE BELOW VIDEOS FOR LOCATING THE LABEL THAT CONTAINS THE CATALOG AND SERIES NUMBER, ALONG WITH THE DATE CODE

In ALL the current design QO and Homeline load centers (the year 2000 and forward), the date code can be found in one of three places:  \n

• On the outside Carton Label of the box, which is located at one of the ends of the carton. (See attached pdf Sample Carton Label)
• On the Box Label, which is located inside of the load center enclosure on either the left or right side wall and will be under the UL Mark of the label. (See Attached video and pdf.)
• On the interior label, which is located on the black plastic material of the interior itself, near the Main Lugs of the load center. (See Attached video and pdf)

\n
NOTE: The Date Code will read something like these examples below:  \n\n

• 095231 (09=year, 52=week of the year, 3=day of week and 1=shift)
• 171022 (17=year, 10=week of the year, 2=day of week and 2=shift)

\n
For Older QO and Homeline load centers BEFORE the year 2000, the date code will read differently. Here is an example: H 25 W 065 2, where the first letter is the Month, the first 2 numbers are the Day of the month, the next letter is a Year, etc.  Refer to this page on Schneider Electric's Download Center for datasheet 0110PD9201 for a breakdown of QO and Homeline load center date codes pre-2000s.  


QO Label Location:
 
Homeline Label Location:
 \n\n"},{"Title":"Video: Replacing the Battery in a Smart-UPS","UrlName":"FA156520","LastModifiedDate":"06/10/2025","products":"APC Smart-UPS, APC Smart-UPS On-Line","score":0.707378217116395,"firstpublisheddate":"10/08/2012","answer":"

Issue:

\n\n

Smart-UPS requires battery replacement.

\n\n

Product line:

\nSmart-UPS
 \n

Environment:

\nAll models, all serial numbers.
 \n

Cause:

\nSmart-UPS batteries require replacement every 3-5 years. This document will assist you in replacing the battery.
 \n

Resolution:

\nClick Here to search by part number for the exact Smart-UPS unit you are using.

On the product page of each Smart-UPS unit you will find a link to the user's manual on the "Documentation" tab. The manual for each unit will explain the battery replacement procedure.

If your UPS is not listed your UPS may not have user replaceable batteries. Please contact our Customer Solutions Team for more information: http://www.apc.com/support/contact/\n\n

The following Instructional videos show how to perform a battery replacement for many popular Smart-UPS. Your particular unit may vary, however they are all removed from the front of the Smart-UPS and generally require a Phillips #2 screwdriver.

Please refer to your users manual for the procedure for your specific model.

\n

 "},{"Title":"Video: Troubleshooting no communication between UPS and PowerChute Business Edition or PowerChute Serial Shutdown","UrlName":"FA163608","LastModifiedDate":"22/04/2026","products":"PowerChute Business Edition, PowerChute Serial Shutdown","score":0.5567577997447086,"firstpublisheddate":"09/10/2012","answer":"

Issue:
No Communication with UPS

Product Line:
PowerChute Business Edition
PowerChute Serial Shutdown
 
Environment:
All supported OS

Cause:
There are many possible causes. See resolution/troubleshooting for list.

Resolution:
Troubleshooting Communications on Windows:

​1.     Check that the PowerChute Agent service is running, named "APC PBE Agent." To verify the service is running, open a command prompt as an administrator and enter the command sc query apcpbeagent

2.     If you are using serial communications, check a) that you are using the serial cable that came with the UPS and b) that it connects the serial port on the UPS to the serial port on your computer.
3.     If you are using USB communications, make sure that the USB cable that came with the UPS is connected from the USB port on the UPS to the USB port on your computer.
Note: The serial communications cable is not a standard RS-232 cable and differs depending on the UPS type. Please refer to the table below. For USB communications, the cable must be USB-IF certified.
 

\n

For supported Smart-UPS and Easy-UPS with PowerChute Agent and the correct cable, see Schneider Electric FAQ FA163632
What communications cable is needed with my Smart-UPS and Easy-UPS with PowerChute Agent?

For supported Back-UPS with PowerChute Serial Shutdown, see Schneider Electric FAQ000237492
What communications cable is needed with my Back-UPS and PowerChute Serial Shutdown?

\n

 

\n

4. With the correct cable attached, stop and restart the PowerChute Agent service, "APC PBE Agent." To stop and restart the service, open a command prompt as an administrator and enter the command sc stop apcpbeagent. Once stopped, enter sc start apcpbeagent 

\n

5. Make sure that PowerChute is configured to use the correct communication port when communicating via the Serial port.

NOTE: The communication port is no longer configurable within the Agent. If you wish to change from a USB to a serial port, you must reinstall the PowerChute Agent.
 
Troubleshooting Windows USB Communications

\n

 

\n

1.     Go to the Windows start/search, enter device manager and double click on Device Manger

\n

 
2.     From Device Manager, select Batteries. You should see the HID UPS Battery.

\n

 
If the HID UPS Battery driver does not load automatically when the USB cable is connected to the UPS

\n

• Open C:\\Windows\\System32\\drivers
• Verify that hidclass.sys, hidparse.sys, and hidusb.sys are available.
• hidclass.sys, hidparse.sys, and hidusb.sys are included with the Windows OS. You will need to install them via the Windows OS install media if they are missing from the system. 
• Verify that apcups.inf was installed properly during the PowerChute installation\n
  • Go to C:\\Windows\\System32\\DriverStore\\FileRepository. If the file has not been loaded see Schneider Electric FAQ Video: How to restore APC PowerChute device drivers on Windows? From there, you can download and install the apcups driver. 
  \n

\n

Note: If configuring for native shutdown via Control Panel - Power Options, the driver should be HID UPS Battery. If PowerChute had previously been install, the drive would be APC UPS. 

3.     From the Device Manager, select Human Interface Devices (HID). You should see a driver called American Power Conversion USB UPS. If either HID or this driver does not display, proceed with the steps below.
4.     Ensure the USB port is enabled in your computer's BIOS. Consult your computer documentation for details on how to enable the USB Port.
5.     If your installation includes a USB hub (a device that multiplies the number of USB ports available) and the UPS is plugged into it, check that the hub is receiving power. Check your hub's manual to learn whether the hub should be powered with an AC/DC adapter.
Note: APC recommends that the UPS USB cable be plugged into the PC's USB port directly, not into a USB hub for optimum performance.
6.     Ensure that the USB cable connected to the UPS is the last in the chain (downstream). Ensure all other USB devices upstream from your APC UPS have communication. If an upstream device is not communicating, any downstream device may not communicate. Remove the device that is not communicating and see if that has any effect.
7.     You can review all connected USB devices Using a freeware utility such as USBDeview.exe. See Schneider Electric FAQ283181 Video: How to verify USB communications between UPS and Windows OS using UsbDeview.exe
8.     If the USB drivers have loaded properly and USBDeview.exe can discover the UPS, yet PowerChute cannot discover the UPS, uninstall PowerChute, and reset the communications bus.
         a. For an SMT, SMTL, or SMX model UPS, on the display interface, hold the UP and DOWN buttons simultaneously for 10 - 12 seconds. The display flashes to indicate that the network interface has restarted.
        b. To reset the communications bus of an SMC model UPS, on the display interface, hold the MUTE and MENU buttons simultaneously for 10 - 12 seconds. The display flashes to indicate that the network interface has restarted.
        c. To reset the communications bus of an SCL model UPS, insert paperclip into the reset hole on the rear of the UPS.
        d. For all other Smart-UPS and Back-UPS, power down all equipment connected to the UPS, and cold start/brain-dead the UPS. For assistance with performing the cold start/brain dead procedure, see Schneider Electric Video: How to perform a cold start and brain dead on Smart-UPS or  How to cold start and brain dead a Back-UPS.  
9. On SMT and SMTL model UPS, disable Green mode. To disable Green mode from the UPS LCD panel, go to Configuration - Green Mode
10. Disable Selective Suspend Settings within the OS power options. To disable USB selective suspend, open the control panel. Go to Power Options, select Change Plan Settings, change Advanced Power Settings, USB settings

11.   After resetting the communications bus or restarting the UPS, reinstall PowerChute. When reinstalling, when asked, "Would you like to automatically search all communication ports for a UPS?" select No. In the next screen, when asked to "Select your UPS Model:" from the drop-down select "Other Type-A" if your UPS model is an SMT, SMX, SMC, SMTL, SRT, SCL. If the UPS model is SUA, select "Other Type-B" or if the UPS is a Back-UPS select "Back-UPS". In the next screen, when asked, select USB as the com port.





NOTE: For step 11 to work, PowerChute would need to have been previously installed on the system. If not the required APC UPS driver will not be available. See Schneider Electric FAQ Video: How to restore APC PowerChute device drivers on Windows? for assistance with loading the APC UPS driver. 

Troubleshooting Windows Serial Communications
Try debugging the COM port with a tool like PuTTY.
For Smart-UPS models SU and SUA. See the "Checking UPS Communications on Windows" section of the attached PowerChute Business Edition Installation Guide for more information.

When configuring PowerChute Agent to communicate using simple signaling the UPS will not be discovered automatically. When running the installer, the UPS must be added manually.

\n\n

NOTE: For Smart-UPS models SMT, SMTL, SMX, SMC, SCL, SRC, SURTD, and all SmartConnect Smart-UPS models, it is not possible to test serial com using PuTTY or other serial comm tools.

 
Additional Windows Troubleshooting Information
1.     After following the steps outlined in the Troubleshooting sections above, stop and restart the PowerChute Agent. If the system cannot communicate, proceed to the next step.
2.     If you have a SmartSlot accessory connected to the UPS, check that it is configured correctly. More information regarding these accessories is available at http://www.apc.com/products/
3.     If you still have not established communication, try using another communications (Serial/USB) cable if one is available.
If you have tried all of the techniques above but have still not established communication, contact Schneider Electric Technical Support at http://www.apc.com/support/ for troubleshooting help.

Troubleshooting Communications on Linux
Serial Comm:
1.   Make sure that the serial cable that came with the UPS is connected from the serial port on the UPS to the serial port on your computer.  
2.   Stop and start the PowerChute Agent. If the Agent process is not running: start and stop it by entering the following commands in a command prompt:

sudo systemctl stop PBEAgent
sudo systemctl start PBEAgent

\n

sudo systemctl status PBEAgent

\n

3.   Try debugging the COM port with a tool like PuTTY - using 2400 as the baud rate for Smart-UPS models SU, and SUA. See the "Checking UPS Communications on Windows" section of the PowerChute Business Edition Installation Guide for more information.

NOTE: For Smart-UPS models SMT, SMX, SMC, SURTD it is not possible to test serial com using PuTTY or other like tools.

USB Comm:
USB communications is supported with PowerChute Agent running Redhat Linux and on SUSE Linux connected to a Smart-UPS. See the PowerChute Agent Operating System, Process and JRE Compatibility Chart available at https://www.se.com/us/en/product-range/137943580-powerchute-serial-shutdown/#documents to verify support.

\n

To test the USB ports run the command lsusb to see a list of connected USB devices. If the command is not present in the OS contact the OS provider support for assistance. 

\n

\n

Another test for USB on Linux is to run the command usb-devices.

\n

 

\n"},{"Title":"Video: What is Modbus Tester and how do I use it?","UrlName":"FA180037","LastModifiedDate":"13/05/2026","products":"Integrated Power & Energy Management Software, Meter Configuration Utilities, Communications, Multi-circuit Power and Energy Meters, Basic Multifunction Power and Energy Meters, Advanced Power Quality Meters","score":0.3942490823729585,"firstpublisheddate":"04/10/2012","answer":""}],"getPa":[{"Title":"What sets Type 1 and Type 2 Surge Protective Devices (SPD) apart from each other?","UrlName":"FA164101","LastModifiedDate":"01/04/2026","products":"Type EMA, Homeline HOM2175SB Surgebreaker Surge Protective Device (SPD), Type HWA, Type MA_IMA, Type IMA, TYPE XDSE, QO2175SB Surgebreaker Surge Protective Device (SPD), QO250PSPD, HOM250PSPD","score":0.9365453247680229,"firstpublisheddate":"31/10/2012","answer":"

Issue:
What sets Type 1 and Type 2 Surge Protective Devices (SPD) apart from each other?

Product Line:
TVSS/SPD

Environment:
Application

Cause:
Clarification

Resolution:

​​​​​​​Type 1 Surge Protective Devices (SPDs):

\n

Type 1 SPDs are permanently hard-wired devices intended for installation between the secondary side of the utility service transformer and the line side of the main service equipment’s overcurrent protective device. They may also be installed on the load side of the main service equipment. These devices are designed to protect against external surges, such as those caused by direct lightning strikes or utility switching events, before the surge reaches the main service panel.

\n

---

\n

Type 2 Surge Protective Devices (SPDs):

\n

Type 2 SPDs are specifically designed for installation on the load side of the main service equipment’s overcurrent protective device. While they can be located at the service entrance, it is critical that they are installed after the main overcurrent protection. Type 2 SPDs primarily protect against internally generated surges, such as those caused by switching of inductive loads

\n

---

\n

System-Level Protection Strategy:

\n

Type 1 and Type 2 SPDs serve complementary roles in a layered surge protection strategy:

\n

• Type 1 SPDs provide the first line of defense against high-energy surges entering from external sources.
• Type 2 SPDs offer downstream protection for sensitive equipment and circuits from residual or internally generated surges.

\n

Together, they help ensure comprehensive surge protection across the electrical system.

\n

---

\n

 

\n

 

"},{"Title":"What is Modbus and How does it work?","UrlName":"FA168406","LastModifiedDate":"22/04/2026","products":"Galaxy VS","score":0.9249578568499703,"firstpublisheddate":"19/03/2013","answer":"

What is Modbus? 

\n

Modbus is a serial communication protocol developed by Modicon published by Modicon® in 1979 for use with its programmable logic controllers (PLCs). In simple terms, it is a method used for transmitting information over serial lines between electronic devices. The device requesting the information is called the Modbus Client and the devices supplying information are Modbus Servers. In a standard Modbus network, there is one Client and up to 247 Servers, each with a unique Server Address from 1 to 247. The Client can also write information to the Servers.

The official Modbus specification can be found at https://modbus.org/

\n

What is it used for?

\n

Modbus is an open protocol, meaning that it's free for manufacturers to build into their equipment without having to pay royalties. It has become a standard communications protocol in industry, and is now the most commonly available means of connecting industrial electronic devices. It is used widely by many manufacturers throughout many industries. Modbus is typically used to transmit signals from instrumentation and control devices back to a main controller or data gathering system, for example a system that measures temperature and humidity and communicates the results to a computer. Modbus is often used to connect a supervisory computer with a remote terminal unit (RTU) in supervisory control and data acquisition (SCADA) systems. Versions of the Modbus protocol exist for serial lines (Modbus RTU and Modbus ASCII) and for Ethernet (Modbus TCP).

\n

How does it work?

\n

Modbus is transmitted over serial lines between devices. The simplest setup would be a single serial cable connecting the serial ports on two devices, a Client and a Server. 

\n

 

\n

The data is sent as series of ones and zeroes called bits. Each bit is sent as a voltage. Zeroes are sent as positive voltages and a ones as negative. The bits are sent very quickly. A typical transmission speed is 9600 baud (bits per second).

\n

 

\n

What is hexadecimal?

\n

When troubleshooting problems, it can be helpful to see the actual raw data being transmitted. Long strings of ones and zeroes are difficult to read, so the bits are combined and shown in hexadecimal. Each block of 4 bits is represented by one of the sixteen characters from 0 to F. 

\n

  

\n

Each block of 8 bits (called a byte) is represented by one of the 256 character pairs from 00 to FF. 
 

\n

How is data stored in Standard Modbus?

\n

Information is stored in the Server device in four different tables. Two tables store on/off discrete values (coils) and two store numerical values (registers). The coils and registers each have a read-only table and read-write table. Each table has 9999 values. Each coil or contact is 1 bit and assigned a data address between 0000 and 270E. Each register is 1 word = 16 bits = 2 bytes and also has data address between 0000 and 270E.
 

\n

\n

 

\n

Coil/Register Numbers can be thought of as location names since they do not appear in the actual messages. The Data Addresses are used in the messages. For example, the first Holding Register, number 40001, has the Data Address 0000. The difference between these two values is the offset. Each table has a different offset. 1, 10001, 30001 and 40001. 

\n

What is the Server ID?

\n

Each server in a network is assigned a unique unit address from 1 to 247. When the client requests data, the first byte it sends is the Server address. This way each server knows after the first byte whether or not to ignore the message. 

\n

What is a function code?

\n

The second byte sent by the Client is the Function code. This number tells the server which table to access and whether to read from or write to the table.

\n

 

\n

What is a CRC?

\n

CRC stands for Cyclic Redundancy check. It is two bytes added to the end of every modbus message for error detection. Every byte in the message is used to calculate the CRC. The receiving device also calculates the CRC and compares it to the CRC from the sending device. If even one bit in the message is received incorrectly, the CRCs will be different and an error will result. .

\n

What are the formats of Modbus commands and responses? 

\n

\n

 

\n

What are data types?

\n

The example for FC03 shows that register 40108 contains AE41 which converts to the 16 bits 1010 1110 0100 0001 Great! But what does it mean? Well, it could mean a few things. Register 40108 could be defined as any of these 16-bit data types:
 

\n

A 16-bit unsigned integer (a whole number between 0 and 65535) register 40108 contains AE41 = 44,609 (hex to decimal conversion) 

\n

A 16-bit signed integer (a whole number between -32768 and 32767) AE41 = -20,927 (hex to decimal conversion that wraps, if its over 32767 then subtract 65536) 

\n

A two character ASCII string (2 typed letters) AE41 = ® A 

\n

A discrete on/off value (this works the same as 16-bit integers with a value of 0 or 1. The hex data would be 0000 or 0001) Register 40108 could also be combined with

40109 to form any of these 32-bit data types: 

\n

A 32-bit unsigned integer (a number between 0 and 4,294,967,295) 40108,40109 = AE41 5652 = 2,923,517,522 

\n

A 32-bit signed integer (a number between -2,147,483,648 and 2,147,483,647) AE41 5652 = -1,371,449,774 

\n

A 32-bit double precision IEEE floating point number. This is a mathematical formula that allows any real number (a number with decimal points) to represented by 32 bits with an accuracy of about seven digits. AE41 5652 = -4.395978 E-11 Here is a spreadsheet IEEE float calculator for inputs of 4 bytes or 2 words. To download a copy, right click and select Save Target As... 

\n

A four character ASCII string (4 typed letters) AE41 5652 = ® A V R More registers can be combined to form longer ASCII strings. Each register being used to store two ASCII characters (two bytes). 

\n

What is byte and word ordering?

\n

The Modbus specification doesn't define exactly how the data is stored in the registers. Therefore, some manufacturers implemented modbus in their equipment to store and transmit the higher byte first followed by the lower byte. (AE before 41). Alternatively, others store and transmit the lower byte first (41 before AE). Similarly, when registers are combined to represent 32-bit data types, Some devices store the higher 16 bits (high word) in the first register and the remaining low word in the second (AE41 before 5652) while others do the opposite (5652 before AE41) It doesn't matter which order the bytes or words are sent in, as long as the receiving device knows which way to expect it. For example, if the number 29,235,175,522 was to be sent as a 32 bit unsigned integer, it could be arranged any of these four ways.

\n

AE41 5652 high byte first high word first

\n

5652 AE41 high byte first low word first

\n

41AE 5256 low byte first high word first

\n

5256 41AE low byte first low word first 

\n

What is a Modbus Map?

\n

A modbus map is simply a list for an individual server device that defines - what the data is (eg. pressure or temperature readings)

\n

- where the data is stored (which tables and data addresses)

\n

- how the data is stored (data types, byte and word ordering)

\n

Some devices are built with a fixed map that is defined by the manufacturer. While other devices allow the operator to configure or program a custom map to fit their needs. 

\n

What is the difference between Modbus ASCII and Modbus RTU?

\n

Modbus RTU and Modbus ASCII talk the same protocol. The only difference is that the bytes being transmitted over the wire are presented as binary with RTU and as readable ASCII with Modbus RTU. important to note about RTU is that the RTU message does not have a Start_of_text indication. The receiving party  in the communications uses a "silent" time in order to determine the start of a new message. ASCII does have a start-of-text token. Binary messages are shorter than ASCII and therefore theoretically faster to transmit/receive. You may be happy to see update rates of about 100 ms in your HMI/SCADA and could choose either communication.

Summary:
- use RTU is possible
- use ASCII in case RTU is giving timeout problems on WinNT or when using slow communications media like 300 bps or dialup modems Most OPC Servers for Modbus support ASCII as well as RTU communications.. 

\n

What are extended register addresses?

\n

Since the range of the analog output holding registers is 40001 to 49999, it implies that there cannot be more than 9999 registers. Although this is usually enough for most applications, there are cases where more registers would be beneficial. Registers 40001 to 49999 correspond to data addresses 0000 to 270E. If we utilize the remaining data addresses 270F to FFFF, over six times as many registers can be available, 65536 in total. This would correspond to register numbers from 40001 to 105536. Many modbus software drivers (for Client PCs) were written with the 40001 to 49999 limits and cannot access extended registers in server devices. And many server devices do not support maps using the extended registers. But on the other hand, some server devices do support these registers and some Client software can access it, especially if custom software is written. 

\n

How does 2-byte server addressing work?

\n

Since a single byte is normally used to define the server address and each server on a network requires a unique address, the number of server on a network is limited to 256. The limit defined in the modbus specification is even lower at 247. To get beyond this limit, a modification can be made to the protocol to use two bytes for the address. The client and the servers would all be required to support this modification. Two byte addressing extends the limit on the number of servers in a network to 65535. By default, the Simply Modbus software uses 1 byte addressing. When an address greater than 255 is entered, the software automatically switches to 2 byte addressing and stays in this mode for all addresses until the 2 byte addressing is manually turned off. 

\n

How can you send events and historical data?

\n

Enron Modbus includes commands for moving events and historical data.. 

\n

What is Enron Modbus?

\n

Enron Modbus is a modification to the standard Modicon modbus communication protocol developed by Enron Corporation.

\n

See Enron Modbus for details.

\n

 

\n

 

\n

 

"},{"Title":"How to Calculate the Required Capacity kVA Rating or Amperage Capacity for Single and Three Phase Transformers","UrlName":"FA101694","LastModifiedDate":"11/07/2022","products":"Non-Linear Energy Efficient Transformers, Energy Efficient Transformers, Low Voltage Transformers 2016 Efficiency Levels","score":0.899372796210461,"firstpublisheddate":"06/02/2003","answer":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n

1. the load line-to-line voltage (V)
2. the maximum load phase current (I)

\n\n

Single Phase Transformers: kVA = (V * I) /1000
Three Phase Transformers:  kVA = (V * I * 1.732) / 1000
where 1.732 is the simple numerical value for the square root of 3 (1.7320508...)
Then round up to the next standard 3ph kVA rating as found in Section 14 of SquareD/Schneider Electric Catalog, Digest 178 .

Single Phase Transformer Example: V = 240, I = 175; Therefore: kVA = (240 x 175) / 1000 = 42 kVA
This calculates to 42 kVA, thus we round up to a standard Single Phase size 50kVA.  From the Digest, an EE50S3H will satisfactorily serve this load.

Three Phase Transformer Example:  V = 208, I = 175; Therefore: kVA = (208 x 175 x 1.732) / 1000 = 63.05kVA
This calculates to 63+ kVA, thus we round up to a standard Three Phase size 75kVA.  From the Digest, an EXN75T3H will satisfactorily serve this load.

Note:  This is a sample kVA calculation and does not take into account possible special load requirements, such as found with motors or some medical equipment, or other specialty applications.


Amperage provided for a given KVA can be determined by similar techniques:

Single Phase Example:  Using a 50 KVA Single Phase Transformer as a starting point.  50KVA is equal to 50,000 VA. (K= 1,000)  The full value in VA, 50,000 is then divided by the Voltage 240V = 208 Amperes.  This is a "Two Step Division", technique:  VA / Voltage = Amperage. 

Three Phase Example:  Using a 75 KVA Three Phase Transformer as a starting point.  75 KVA is equal to 75,000 VA. (K= 1,000)  The full value in VA, 75,000 divided by 1.732 = 43,302, which is then divided by the Voltage 208V = 208.2 Amperes.  This is a "Three Step Division", technique:  VA / 1.732 / Voltage = Amperage. 


3.  As an alternative to these calculations, you may prefer to use the charts below.  Standard KVA sizes are shown on the left margin, Standard Line-to-Line Voltages are shown along the top margin. 

Chart Example:  Using the numbers from the earlier Three Phase Transformer Example V=208, I=175.  Use the chart titled "Three Phase Low Voltage Dry Type Transformers".  Following the 208V top margin entry, and reading down vertically, it is seen that the first entry in that 208V vertical column that will cover 175A, and then some, is 208A, which indicates a 75 KVA Transformer, shown in the next over vertical column to the left.

See pages 3 & 4 of document 7400HO9501 "Looking for Low Voltage Transformer Solutions" for more information and conversion tables.

"},{"Title":"How do I upgrade the firmware on an APC Network Management Card (NMC) or NMC embedded device?","UrlName":"FA156047","LastModifiedDate":"22/04/2026","products":"Network Management Cards","score":0.8013981609774531,"firstpublisheddate":"10/08/2012","answer":"

Issue

\n

• You wish to upgrade your Network Management Card's (NMC) firmware or have been instructed to.
• You have a device such as a Smart-UPS, Smart-UPS Ultra, Easy UPS On-Line, Easy UPS 3-Phase, Rack PDU, AV unit, or environmental monitoring unit with an embedded NMC that you wish to upgrade.
• You had a problem with a previous upgrade attempt and need the instructions in order to correct it.
• Your device came pre-loaded with the wrong application and you need to load the correct application.

\n

Product Line

\n

• Network Management Card 2 - AP9630, AP9631, AP9635
• Network Management Card 3 - AP9640, AP9641, AP9643
• Network Management Card 3 for Easy UPS – AP9544, AP9547
• Network Management Card 4 – AP9644

\n

Environment

\n

• All serial numbers
• All firmware versions (unless otherwise noted)

\n

Cause

Users may wish to upgrade their firmware to take advantage of enhancements, bug fixes, or new features. Also, sometimes a firmware upgrade can be interrupted or unsuccessful and these instructions can be followed to remedy the problem.

Typically, these upgrades do not require the device the Network Management Card is installed in to be powered down or cause unnecessary downtime.

Lastly, downgrades are not typically recommended but the manual methods can also be used to do those in certain circumstances.

NOTE: To upgrade to firmware version 3.0 and higher for NMC3 for Smart-UPS, Easy UPS On-Line, and rPDU, the only supported method is the Secure NMC System (SNS) Tool, which requires a subscription to access the firmware. For more information, see www.se.com/secure-nmc


Resolution

Find Correct Firmware

When upgrading the firmware on your Network Management Card (NMC), you will need to determine which files pertain to your application. Begin by determining what model of NMC you have.
 

\n

• AP9630, AP9631, AP9635 - Network Management Card 2
• AP9641, AP9641, AP9643 - Network Management Card 3
• AP9544, AP9547 - Network Management Card 3 for Easy UPS

\n

The application firmware required depends on what product your NMC is installed in. Some examples include:

\n

• For NMC2 devices:\n
  • SUMX for Smart-UPS 1-Phase
  • SY for Symmetra 1-Phase UPS
  • SY3P for Symmetra 3-Phase UPS
  \n
• For NMC3 devices:\n
  • SU for Smart-UPS 1-Phase
  • SY for Symmetra 1-Phase UPS
  • SUCAN for Smart-UPS Ultra
  • RPDU2G for rPDU (Rack Power Distribution Unit)
  • SY3P for Symmetra 3-Phase UPS
  \n
• For Easy UPS NMC devices:\n
  • EU1P for Easy UPS 1-Phase
  • EU3P for Easy UPS 3-Phase
  \n

\n

NOTE: These instructions can also be used in devices that have embedded (mini) versions of the above Network Management Cards.

NOTE: If you are interested in upgrading multiple devices at a time, refer to knowledge base FA156117
 
NOTE: If you have an AP9635 installed in a Symmetra PX 250/500, you have a Network Management Card 2 but MUST contact APC Technical Support in order to obtain the correct firmware and special instructions.

Download Firmware
 

\n

1. Navigate to www.apc.com/secure-nmc and click the Software and Firmware tab.
2. Find and download the latest firmware file for your NMC. NOTE: To upgrade to firmware version 3.0.0 and higher for NMC3 for Smart-UPS, Easy UPS On-Line, and rPDU, the only supported method is the Secure NMC System (SNS) Tool, which requires a subscription to access the firmware.
3. Alternatively, visit https://www.apc.com/us/en/download/software-firmware/ and enter your NMC part number (e.g. AP9641), click the Firmware category, and download the latest firmware file.

\n

NOTE: Firmware updates of NMC3 or NMC4 for 3-Phase UPS and PDU can only be done by Schneider Electric qualified services representatives. Please contact your local Schneider Electric Service Representative or Schneider Electric Certified Service Partner for details.

\n

Update Firmware

There are different ways that you can upload the firmware for each device. Please choose a method that works best for you. 

NOTE: For users upgrading (or downgrading) their Network Management Card 2 device from v5.X.X to v6.X.X, please review Knowledge Base article FA167693 to understand several important considerations prior to beginning any of these steps.
 

\n

• Secure NMC System (SNS) Tool - Network Management Card 3 (for firmware versions 3.0 and higher)
• Universal Serial Bus (USB) 1.1 - Network Management Card 2 and 3 devices with a USB port (AP9631, AP9635, AP9641, AP9643 and RPDU devices (RPDU2G) and Smart-UPS Ultra devices with embedded NMC3 – for firmware versions 2.5 and lower)
• Firmware Upgrade/Update Utility - Network Management Card 2 and 3 (for NMC3 firmware versions 2.5 and lower)
• XMODEM - Network Management Card 2 and 3 (for NMC3 firmware versions 2.5 and lower)
• Manual (FTP prompt) - Network Management Card 2 and 3 (for NMC3 firmware versions 2.5 and lower)
• Manual - Secure CoPy (SCP) - Network Management Card 2 and 3 (for NMC3 firmware versions 2.5 and lower)

\n

Secure NMC System (SNS) Tool - Network Management Card 3 (firmware versions 3.0 and higher)

 

\n

1. Download the Secure NMC System (SNS) Tool from the APC/Schneider Electric website.  As of SNS Tool v4.0, all units can be upgraded using the same program, excluding PDU's in an NPS setup.

\n

Part # (SKU)	Secure NMC System (SNS) Tool
SFNMC3FMTSU	Secure NMC System Tool for Smart-UPS
SFNMC3SUCAN	Secure NMC System Tool for Smart-UPS Ultra
SFNMC3RPDU	Secure NMC System Tool for PDU
SFNMC3FMTEU1P	Secure NMC System Tool for Easy UPS On-Line

\n

 
NOTE: There are different versions of the SNS Tool depending on the application you are running on your NMC3. To access the firmware in the SNS Tool, you need a valid Secure NMC subscription. See www.apc.com/secure-nmc for more information.
 

\n

1. Double-click the self-extracting ZIP file. 

\n

1. Add devices to the SNS Tool: 

\n

1. To add one at a time:  

\n

1. Click Add Devices and enter: 

\n

1. the NMC’s IP address/FQDN/hostname

\n

1. the protocol and port to transfer the firmware file. SCP is recommended as it’s more secure than FTP. Note: The selected protocol must also be enabled on the NMC3. 

\n

1. the user name and password  

\n

1. To add more than one at a time:  

\n

1. Open the devices.csv file in the downloaded SNS Tool directory and add the device details. Note: Lines that start with a semi-colon ; will not be processed. 

\n

1. Save and close the devices.csv file. 

\n

1. In the SNS Tool, click Add Devices. 

\n

1. Click Import Device File – this button only appears if data is detected in the devices.csv file. 

\n

1. Click Query Devices. 

\n

1. Click Query Devices. 

\n

1. Click Add Devices. 

\n

1. Activate licenses for selected NMCs: 

\n

1. Click on NMCs in the Device List and click License Devices. If you have more than 1 NMC in the Device List, use Ctrl+click to multi-select. 

\n

1. Enter the Activation ID from the purchased Secure NMC System subscription and click Confirm & Activate. (If you have the SNS Tool installed on another PC and want to check if any of the NMCs are already licensed, you can click Sync License(s) to do so). 

\n

 

\n

1. Update firmware for selected NMCs: 

\n

1. Click on NMCs in the Device List and click Update Firmware. If you click Update Firmware without selecting any NMCs from the Device List, the Firmware Management Tool will automatically select all of the NMCs that are eligible to update (Device Status = Ready for update). 

\n

Universal Serial Bus (USB) 1.1 – Network Management Card 2* devices with USB


NOTE: *If you have an AP9635 installed in a Symmetra PX 250/500, you have a Network Management Card 2 but MUST contact APC Technical Support in order to obtain the correct firmware and special instructions, PRIOR to following the steps below. Failure to do so may result in unexpected operation of your AP9635 Network Management Card 2.

 
NOTE: Some USB flash drives are not compatible with the NMC2 devices. Secondly, the flash drive’s file system must be FAT, FAT16, or FAT32. (NTFS will not work).

1. Obtain the latest firmware files from apc.com and extract them to a folder. Please note, USB may not allow for a firmware downgrade. You must use a manual method to accomplish a downgrade.

2. Create a folder on your USB flash drive called apcfirm .

3. From the latest firmware files that you downloaded, add to the apcfirm folder the binary files for the firmware modules that you would like to upgrade. Some examples of the binary files for the three firmware modules follow:
 

\n

Firmware Module	Binary File
APC Boot Monitor	apc_hw05_bootmon_109.bin
APC Operating System (AOS)	apc_hw05_aos_712.bin
Application Module	apc_hw05_sumx_712.bin
Language Pack*	sumx_712_frFrdeDeruRuitItesEs.lpk

\n

 *Optional language pack upgrades/changes are supported via USB if the device you’re upgrading already has BootMonitor v1.0.8 or higher (BootMonitor performs the upgrading function). 
NOTE: Not all NMC2 applications support language packs.
 
4. Use a text editor such as Microsoft Notepad to create a file called upload.rcf. NOTE: (Ensure that file extensions are visible so that your file does not get named upload.rcf.txt. In Windows, this option can be edited in Folder Options->View->Hide extensions for known file types within Control Panel. Make sure that option is unselected.) Add to the file a line for each firmware module that you want to upgrade as shown below (replace “xx” with the version of firmware you will be upgrading to):
 
BM=apc_hw05_bootmon_xx.bin
AOS=apc_hw05_aos_xx.bin
APP=apc_hw05_sumx_xx.bin
LANG=sumx_xx_frFrdeDeruRuitItesEs.lpk

 
5. Add the upload.rcf file to the apcfirm folder on the flash drive.

6. Insert the flash drive into the USB port on the NMC2.

7. Press and release the pinhole Reset button on the NMC2 for the USB upgrade process to begin. (This will only reboot the management interface of the NMC2 and not reboot your device/load.) The NMC2 status LED, located on the RJ-45 Ethernet jack, will begin to blink amber during this procedure and rotate through a few color flashing patterns while transferring the different files. NOTE: If you have an AP9631 or AP9635 removable NMC2 UPS SmartSlot card, you can also remove and re-insert the card into the UPS SmartSlot, effectively rebooting the NMC2 and beginning the USB upgrade process this way.

8. Wait for 2-5 minutes for the upgrade to complete. Remove the flash drive from the USB port and check your firmware version. On a Rack PDU specifically, the LCD display will show the firmware version for three seconds and then will resume normal operation, at which time you can also remove the flash drive.

Universal Serial Bus (USB) 1.1 – Network Management Card 3 devices with USB (firmware versions 2.5.0 and lower)

This feature is available in bootloader version v1.3.3.1 and higher. Before starting the transfer, make sure the USB drive is formatted in FAT, FAT16 or FAT32.

\n

1. Download the firmware upgrade file.
2. Create a folder named apcfirm on the USB flash drive.
3. Place the .nmc3 file in the apcfirm directory.
4. Use a text editor to create a file named nmc3.rcf. (The file extension must be .rcf, not .txt for example.)
5. In nmc3.rcf, add a line for the firmware package to be upgraded. For example, to upgrade Smart-UPS application version v1.5.0.6, type: NMC3=apc_hw21_su_2-5-0-6.nmc3
6. Place nmc3.rcf in the apcfirm folder on the flash drive.
7. Insert the flash drive into a USB port on your NMC
8. Reboot the NMC and wait for the card to reboot fully.

\n

Firmware Upgrade/Update Utility – Network Management Card 2 and 3* (NMC3 firmware versions 2.5.0 and lower)

If you have a Windows computer, you can use the Firmware Upgrade Utility (NMC2)/Firmware Update Utility (NMC3) to upgrade the firmware.

If you have any other type of computer, then you will need to manually upload each firmware file to the Network Management Card. Go to the XMODEM or Manual sections below for additional instructions.

NOTE: For any firmware downgrades, which are not typically recommended, you will need to choose a new method. The Wizard will block any downgrades. Unfortunately, loading applications for different devices may also have encounter this block if AOS versions are not the same.


NOTE: *If you have an AP9635 installed in a Symmetra PX 250/500, you have a Network Management Card 2 but MUST contact APC Technical Support in order to obtain the correct firmware and special instructions, PRIOR to following the steps below. Failure to do so may result in unexpected operation of your AP9635 Network Management Card 2.
 

\n

1. Click on the firmware executable once the download is complete. The executable will proceed to unzip firmware files and extract them. You can specify the location where you want the firmware to download to.
2. Once the firmware has been saved, the executable will prompt you for the IP address of the Network Management Card that you want to upgrade.
3. Once you enter the IP address, click enter.
4. You will be prompted for a username and password. This must be the Super User Account or an Administrator account. By default, the Super User username and password is apc. Press enter.
5. If using the NMC2 Firmware Upgrade Utility, seen below, you will be prompted to enter the IP address and username and password. You can enter those and press Upgrade Now.

\n

 
 

\n

1. If using the NMC3 Firmware Update Utility, seen below, you will be prompted to enter the IP address and username and password. You can enter those and press Start Update.

\n

 

\n

1. The firmware executable will then begin the upgrade process. This process may take as long as 5-7 minutes to finish. Once finished, close the executable.
2. Verify that the firmware upgrade was successful. Log into the Web UI and navigate to About -> Network. The updated firmware should be listed on this page. Alternatively, verify via Telnet, SSH, or local console connection on the main page after log in.

\n

XMODEM – Network Management Card 2 and 3 (for NMC3 firmware versions 2.5 or lower)
 
Network Management Card 2 (AP9630, AP9631, AP9635)*


NOTE: If you have an AP9635 installed in a Symmetra PX 250/500, you have a Network Management Card 2 but MUST contact APC Technical Support in order to obtain the correct firmware and special instructions, PRIOR to following the steps below. Failure to do so may result in unexpected operation of your AP9635 Network Management Card 2.
NOTE: If you wish to downgrade from v6.X.X to v5.1.X firmware on NMC2, please make sure you review Knowledge Base Article FA167693 prior.

1. Select a serial port at the local computer and disable any service that uses the port.

2. Connect the provided serial configuration cable (APC part number 940-0299) to the selected 2.5mm Tip-Ring-Sleeve Console port on the Management Card itself. 

3. Run a terminal program such as HyperTerminal, and configure the selected port for 57600 bps, 8 data bits, no parity, 1 stop bit, and no flow control. NOTE: certain terminal emulation programs, such as PuTTy, do not support the XMODEM protocol.

4. Press the Reset button on the Management Card or reseat the Network Management Card in the SmartSlot, then immediately start pressing the <enter> key repeatedly until the Boot Monitor prompt displays: BM> . Also, once you have entered Boot Monitor mode correctly, the Network Management Card's status LED will flicker amber in color. (BootMonitor mode is required on NMC2 for an XMODEM upgrade in any situation.)

5. Type XMODEM, then press ENTER. You will begin to see CCCCC scroll across the screen to indicate the Network Management Card is ready to receive a file.

6. From the terminal program’s menu, select XMODEM, then select the binary bootmonitor firmware file to transfer using XMODEM. After the XMODEM transfer is complete, the Boot Monitor prompt returns.

NOTE: If the boot monitor module must be updated, a boot monitor module is included in the firmware release. Otherwise, the boot monitor module that is installed on the card is compatible with the firmware update. If there is no included bootmonitor file, upgrade the AOS binary first.

7. To install the application module, repeat step 5 and step 6. In step 6, use the application module file name.

8. Type reset or press the Reset button to restart the Management Card.

If the Management Card is installed in an Expansion Chassis or Triple Expansion Chassis, connect the provided configuration cable (APC part number 940-0299) to the serial port at the Management Card, or connect an RS-232 configuration cable (APC part number 940-0024) to the DB-9 serial port at the expansion chassis.If you connect an RS-232 configuration cable (APC part number 940-0024) to the DB-9 serial port of the expansion chassis, select 115200 bps.

Network Management Card 3 (AP9640, AP9641, AP9643)

1. Select a serial port at the local computer and disable any service that uses the port.

2. To connect to a NMC3, use the provided micro-USB cable (APC part number 960-0603).

3. Run a terminal program such as HyperTerminal, and configure the selected port for 57600 bps, 8 data bits, no parity, 1 stop bit, and no flow control.  NOTE: Certain terminal emulation programs, such as PuTTy, do not support the XMODEM protocol.

4. Press the Reset button on the Management Card or reseat the Network Management Card in the SmartSlot, then immediately start pressing the <enter> key repeatedly until the Boot Monitor prompt displays: BM>. Once you have entered Boot Monitor mode correctly, the Network Management Card 3's status LED will be solid orange in color. (Boot Monitor mode is required on NMC3 for an XMODEM upgrade in any situation.)

5. Type XMODEM, then press ENTER. You will begin to see CCCCC scroll across the screen to indicate the Network Management Card is ready to receive a file.

6. From the terminal program’s menu, select XMODEM and select the .nmc3 file to transfer. After the XMODEM transfer is complete, the Boot Monitor prompt returns.

7. Type reset or press the Reset button to restart the Management Card.

If the Management Card is installed in an Expansion Chassis or Triple Expansion Chassis, connect the provided configuration cable (APC part number 940-0299) to the serial port at the Management Card, or connect an RS-232 configuration cable (APC part number 940-0024) to the DB-9 serial port at the expansion chassis. If you connect an RS-232 configuration cable (APC part number 940-0024) to the DB-9 serial port of the expansion chassis, select 115200 bps.

 
Manual (via FTP) - Network Management Card 2 and 3* (NMC3 firmware versions 2.5.0 and lower)


Network Management Card 2


NOTE: If you have an AP9635 installed in a Symmetra PX 250/500, you have a Network Management Card 2 but MUST contact APC Technical Support in order to obtain the correct firmware and special instructions, PRIOR to following the steps below. Failure to do so may result in unexpected operation of your AP9635 Network Management Card 2.

1. To perform a firmware flash with this method the Management Card must have been previously configured with a System IP, Subnet Mask, and Default Gateway and attached to the network. In addition, FTP Server must be enabled.

2. Open an MS-DOS command prompt window on a PC which is connected to the network. Change to the directory which contains the firmware upgrade files. Some example commands which need to be entered are shown in bold in order to change directories. Please note, this is just an example. You may need to enter a full path to a directory which requires different syntax.
C:\\> cd apc
C:\\apc>

 
3. Open an FTP client session.

C:\\apc> ftp 192.168.1.100 (192.168.1.100 being the IP address of the web card)

 
4. Log in. This must be the Super User Account or an Administrator account. By default, the Super User username and password is apc. Press enter.
Typically, the password will appear on the screen as *** or not at all as you type.
 

Connected to 192.168.1.100
220- APC FTP server ready.
User (192.168.1.100 :(none)): apc
331 User name okay, need password.
Password: apc
230 User logged in, proceed.
ftp>
 
5. Upgrade the bootmonitor file first. If the boot monitor module must be updated, a boot monitor module is included in the firmware release. Otherwise, the bootmonitor module that is installed on the card is compatible with the firmware update and can be skipped. If there is no included bootmonitor file, or you are using NMC1, upgrade the AOS first. The AOS module is the file with the AOS prefix.

 

ftp> bin (specifies binary transfer mode which is required)
200 Command okay.
ftp> hash (optional - enables hash mark printing as a way of monitoring file transfer progress)
ftp> put aosxx.bin (xx being the version number downloaded) Tip: With Windows Command Prompt in most OS versions, besides Vista, command prompt, you can drag and drop the file onto the command prompt window which will paste the full file path automatically here for you.
200 Command okay.
150 Opening data connection for aos301.bin
###############################################################
250 Requested file action okay, completed. Management Card Rebooting....
327680 bytes sent in 5.99 seconds (54.70 Kbytes/sec)
ftp>
 

6. Close the FTP client session to allow the card to continue rebooting as your FTP session will be disconnected and need to be re-opened for any further transfers.
 
ftp>bye
C:\\apc>

 
7. Wait about 20 - 30 seconds.

8. Repeat Steps 3 - 8 again for the application module (sumx for Smart UPS/Matrix, sy for Symmetra, etc). In Step 6, substitute the sumx module file name, in place of the AOS module file name. Or the sy prefix for the Symmetra.
 
NOTE: To upgrade multiple Management Cards using an FTP client or using SCP, write a script which automatically performs the procedure.


NOTE: If using MacOSX, the full filepath of the destination folder will need to be included in the "put" command. An example command would read:
ftp> put /Users/Admin/Downloads/aosxx.bin /aosxx.bin

Network Management Card 3

1. To perform a firmware flash with this method the Management Card must have been previously configured with a System IP, Subnet Mask, and Default Gateway and attached to the network. In addition, FTP Server must be enabled.

2. Open an MS-DOS command prompt window on a PC which is connected to the network. Change to the directory which contains the firmware upgrade files. Some example commands which need to be entered are shown in bold in order to change directories. Please note, this is just an example. You may need to enter a full path to a directory which requires different syntax.
C:\\> cd apc
C:\\apc>

3. Open an FTP client session.

C:\\apc> ftp 192.168.1.100 (192.168.1.100 being the IP address of the web card)

 
4. Log in as Administrator (apc is the default user name and password).
 
5. Upgrade the firmware:

ftp> bin (specifies binary transfer mode which is required)
ftp> hash (optional - enables hash mark printing as a way of monitoring file transfer progress)
ftp> put apc_hw21_SU_xx.nmc3 (xx being the version number downloaded)
6. When FTP confirms the transfer, type quit to close the session.
 
7. Wait about 20 - 30 seconds.
 
NOTE: To upgrade multiple Management Cards using an FTP client or using SCP, write a script which automatically performs the procedure.

Manual (via Secure CoPy) - Network Management Card 2 and 3* (NMC3 firmware versions 2.5.0 and lower)

Network Management Card 2

NOTE: If you have an AP9635 installed in a Symmetra PX 250/500, you have a Network Management Card 2 but MUST contact APC Technical Support in order to obtain the correct firmware and special instructions, PRIOR to following the steps below. Failure to do so may result in unexpected operation of your AP9635 Network Management Card 2.

NOTE: If you wish to downgrade from v6.X.X to v5.1.X firmware on NMC2, please make sure you review Knowledge Base Article FA167693 prior.

1. Identify and locate the firmware modules described in the preceding instructions for FTP.

2. Use an SCP command line to transfer the AOS firmware module to the Management Card. The following example uses xx to represent the version number of the AOS module:
 
scp apc_hw05_aos_xx.bin apc@158.205.6.185:apc_hw05_aos_xx.bin
 
3. Use a similar SCP command line, with the name of the application module, to transfer the application firmware module to the Management Card.
 
 
NOTE: To upgrade multiple Management Cards using an FTP client or using SCP, write a script which automatically performs the procedure. Alternatively, you can use APC's INI utility which is downloadable and explained in Knowledge Base Article FA156117.

NOTE: Never remove a Management Card before it completes the reboot cycle. Doing so will damage the Management Card. The reboot cycle is complete when the status LED turns off and after 20 seconds turns solid green or slowly flashing 
 
Network Management Card 3

Use an SCP command line to transfer the .nmc3 file to the Management Card. The following example uses xx to represent the version number of the application module:
 
scp apc_hw21_SU_xx.nmc3 apc@158.205.6.185:apc_hw21_SU_xx.nmc3
 
NOTE: To upgrade multiple Management Cards using an FTP client or using SCP, write a script which automatically performs the procedure. Alternatively, you can use APC's INI utility which is downloadable and explained in Knowledge Base article FA156117.

NOTE: Never remove a Management Card before it completes the reboot cycle. Doing so will damage the Management Card. The reboot cycle is complete when the status LED turns off and after 20 seconds turns solid green or slowly flashing amber.
 

\n"},{"Title":"PowerChute support with USB or Serial communication - Supported APC UPS Models","UrlName":"FA315835","LastModifiedDate":"22/04/2026","products":"PowerChute Serial Shutdown, PowerChute Business Edition","score":0.6181683412946797,"firstpublisheddate":"02/02/2018","answer":"

Issue:
When manually selecting an APC UPS during PowerChute Serial Shutdown or PowerChute Business Edition installation, multiple categories must be considered.

Product Line:
PowerChute Serial Shutdown v1.0 and higher
PowerChute Business Edition version 9.5 and higher

Environment:
All supported operating systems when connected to Smart-UPS, Easy UPS On-Line, or Back-UPS.

\n

NOTE1: Back-UPS model UPSs are only supported with PowerChute Serial Shutdown, which replaces PowerChute Personal Edition and PowerChute Business Edition. 

\n

NOTE2: Linux operating systems are only supported with Smart-UPS and Easy UPS Online models. Smart-UPS (Type A) connected over USB is not supported on Red Hat® Enterprise Linux® 7.x.
Back-UPS are not supported with Linux operating systems.

See a list of supported UPS below.


Cause:
To accommodate installation pre-requisites for Easy UPS On-Line, Smart-UPS, or Back-UPS.

Resolution:
In PowerChute Serial Shutdown v1.0+ or PowerChute Business Edition v9.5+, you are asked to select your UPS from a list of UPSs with model prefixes (e.g., SMT, SMX, SMC, SU, etc.) or run auto-detect of UPS on a Windows OS. 

\n

We recommend running autodetect when installing PowerChute on a Windows OS.

Depending on your UPS model, the model and serial numbers are printed on the barcode label at the back or bottom of the UPS. Some rack-mount Smart-UPS have the barcode label behind the front bezel. 

\n

All supported Smart-UPS UPS models are categorized into two types:

\n

• Type A - Smart-UPS and Easy-UPS with prefix (Smart-UPS models) SMT, DLT, SMX, SURTD, SRT, SMTL, SCL, SMC, and SRTL; (Easy-UPS models) SRC2KUXI, SRC3KUXI, and SRC3KUXIX709)
• Type B - Smart-UPS excluding UPS models with prefix SMT, DLT, SMX, SURTD, SRT, SMTL, SCL, SMC, UX, and SRTL

\n

Supported Smart-UPS and Easy-UPS models are

\n

Type A UPS	Type B UPS
SMT or DLT	SU
SMX	SUA (including C500J) or DLA
SURTD	SURT
SRT	SURTA
SMTL	SC
SCL	SUM
SMC	SRV Models: (3kVA & below)
SRTL	UX
SRC models:\n SRC2KUXI SRC3KUXI SRC3KUXIX709   \n	Any SRC model, excluding those listed under Type A.

\n

NOTE: A Back-UPS model is neither Type-A nor Type-B. In the installer dropdown list, select Back-UPS. 
Supported Back-UPS models with prefix

\n

BV

BVX-LI

BVK

BE

BN

BK

BX

BR

BGM.

\n

Example of a Back-UPS with prefix BN

\n

\n

For more information on Smart-UPS models, see https://www.se.com/ww/en/product-range/61915-smartups/?parent-subcategory-id=8020
For more information on Easy UPS On-Line models, see https://www.se.com/ww/en/product-range/65668-easy-ups-1-ph-online/?parent-subcategory-id=8020.
For more information on Back-UPS models, see https://www.se.com/ww/en/product-subcategory/8010-home-office-electronics/?filter=business-3-critical-power-cooling-and-racks

\n

For assistance with the device drivers see Schneider Electric FAQ FA164514

"},{"Title":"How do I update the firmware of my CSH, SCL, SMC, SMT, SMTL, SMX, SRT, SRTL, SRYL, XP, and XU series Smart-UPS?","UrlName":"FA164737","LastModifiedDate":"22/04/2026","products":"APC Smart-UPS On-Line, APC Smart-UPS","score":0.3339757316202712,"firstpublisheddate":"13/12/2012","answer":"

Issue: 

Most Smart-UPS products feature user updateable UPS Firmware.
This allows for ongoing improvements, feature enhancements, and cybersecurity remediations of Smart-UPS products after deployment.


Product line:

\n

CSH, SCL, SMC, SMT, SMTL, SMX, SRT, SRTL, SRYL, XP, and XU series Smart-UPS


Environment:

Since we will continually release new products that are supported by the tool, we identify devices that are NOT supported.

Devices that do NOT have updateable firmware:

\n

• UPS Models with the prefixes SRC, SU, SUA, SUM, SURT, SURTA, SURTD
• SMX750, SMX1000, SMX1500 with ID 11 and firmware UPS 02.x or lower. These units are 120 V devices built prior to date code 1037. Date code is the first 4 numbers in your serial number. (e.g. Serial Number AS1036123456 would not be supported.)

\n

Resolution:

There are several methods to update the firmware of the UPS:

Locally via a Serial connection using the Firmware Upgrade Wizard application. This is the most universal method and should be used whenever possible. 
CLICK HERE to update using a Serial connection and the Firmware Upgrade Wizard. (RECOMMENDED)

\n

 

\n

Remotely via the web interface of the Network Management Card (NMC): requires a a SmartSlot or Embedded NMC. 
CLICK HERE to update using the web interface of the Network Management Card

\n

 

\n

Remotely via the command line interface of the Network Management Card (NMC): requires a a SmartSlot or Embedded NMC.
CLICK HERE to update using the command line interface of the Network Management Card

\n

 

\n

Remotely via SmartConnect - supported only by EcoStruxure Ready Smart-UPS devices only (UPS Models with the prefixes SCL, SMC, SMT, SMTL, SMX, SRTL models with a "C" suffix; e.g. SMX1500IC, SCL500RMI2UC, SMT1500C, SMX1000C). 
CLICK HERE to update via Smart-Connect

\n

 

\n

Locally via a USB flash drive  - supported by XU1K3LLXXRCC and certain Smart-UPS SRT and SRTL UPS models only. 
CLICK HERE to update via a USB flash drive

\n"},{"Title":"How do I update my Smart-UPS firmware using the web interface of my Network Management Card?","UrlName":"FA170679","LastModifiedDate":"19/06/2026","products":"APC Smart-UPS","score":0.27728974458693934,"firstpublisheddate":"10/05/2013","answer":"

Issue:

Because the Firmware Upgrade Wizard is the most universal and preferred method of updating, we recommend using the APC Firmware Upgrade Wizard whenever possible. The APC Firmware Upgrade Wizard guides you through the update process and provides a consistent update experience. The Firmware Upgrade Wizard is available in FA279197. Not all models are supported by the Firmware upgrade Wizard. Instructions are being provided here for users that are unable use the Firmware Upgrade Wizard or prefer to update their Smart-UPS Firmware using the web interface of an APC Network Management Card (NMC). For those who wish to update their Smart-UPS Firmware using the NMC's command line interface (CLI), see FAQ000242942 .

\n

Product Line:

Smart-UPS models with the prefixes SCL, SMC, SMT, SMTL, SMX, SRT, SRTL, SRYL, XP, and XU with a SmartSlot or embedded NMC.

\n

 

\n

If the ID of your UPS is not available in the table below, it means there are no firmware updates available for that UPS at this time. 


Environment:

\n

• Supported UPS model listed above
• Supported Web browsers: Microsoft® Internet Explorer® (IE) 8.x or higher, with compatibility view turned on; the latest release of Microsoft® Edge®; the latest releases of Mozilla® Firefox® or Google® Chrome®
• UPS Network Management Card 2 (AP9630, AP9630CH, AP9631, AP9631CH, or embedded NMC2) with SUMX application firmware v6.4.0 or higher 
• UPS Network Management Card 3 (AP9640, AP9641, AP9643, or embedded NMC3) with SU application firmware 1.0 or higher
• Correct firmware file for the particular UPS available in the table below

\n

Resolution:

Follow the steps below to determine your current NMC firmware revision, select the proper UPS firmware file, and update the UPS firmware via the Network Management Card web interface.

NOTE: When performing the UPS firmware update using the NMC web interface, while connected to the web interface over Wi-Fi, a different network, or VPN, a file transfer timeout may occur if an HTTPS connection is used. Refer to FAQ000234317 for alternative methods to update the UPS firmware using the NMC.
 
Step 1 - Check if you have a Network Management Card 2 running Smart-UPS / Matrix Application, or a Network Management Card 3 running Smart-UPS Application, and ensure there are no active alarms reported.

Network Management Card 2 running Smart-UPS / Matrix Application:


Network Management Card 3 running Smart-UPS Application:


Step 2 - If using Network Management Card 3, go to Step 3.
If using Network Management Card 2: Verify the firmware revision of your Network Management Card. From the NMC web interface choose “About”, then “Network”. The firmware must be v.6.4.0 or higher, but we recommend you always run the latest available NMC firmware. To update the firmware of your Network Management Card, refer to FA156047 .

\n

Step 3 - IMPORTANT: For Smart-UPS Ultra models with ID 1226 & 1227, the firmware of the Network Management Card must be updated to version 2.5.4.4 or later before updating the UPS firmware. Refer to FA156047 to update the firmware of the Network Management Card. 

\n

Note: always download the latest NMC firmware for SUCAN application from se.com:

\n

\n

Step 4 – Identify the correct UPS Firmware file.
Note: Always update to the latest Network Management Card firmware before updating the UPS firmware.  See .  See FA156047, FAQ000261841

\n

• From the NMC web interface choose “About”, then “UPS”:
• Identify the "ID" number to select the proper firmware file for your UPS.\n
  • For example, for a UPS with ID 1025 the proper filename will be SRT1025UPS_15-0.enc
  \n

\n

\n

• Download the appropriate firmware file available in the table below.

\n

The "ID" is a unique identifier for the hardware platform of your UPS. You need to use the "ID" number to make sure to select the correct firmware file. A particular UPS model may have different "ID" numbers depending on when it was manufactured, or its current firmware version. Always check the "ID" number of the UPS before starting the update, and ensure you use a firmware file with the compatible ID. If the incorrect file is used, the update will be refused, and will need to be restarted using the correct firmware file.

\n

Use the table below to determine the correct firmware file for your UPS:

\n

\n

Click here to view details

\n

UPS Series	UPS ID	Firmware File	Latest  Firmware Version Release Notes	Firmware Update with Output On Available	Crypto- graphycally Signed	Firmware Update via NMC
SCL	1029	SCL1029UPS_15-6.enc	UPS 15.6	Yes	Yes	Enabled
SCL	1048	SCL1048UPS_16-6.enc	UPS 16.6	Yes	Yes	Enabled
SMC	1005	SMC1005UPS_15-1.enc	UPS 15.1	No	No	Configurable
SMT	1015	SMT1015UPS_18-0.enc	UPS 18.0	Yes	Yes	Configurable
SMT	1027	SMT1027UPS_18-0.enc	UPS 18.0	Yes	Yes	Configurable
SMT	1031	SMT1031UPS_15-6.enc	UPS 15.6	Yes	Yes	Configurable
SMT	1039	SMT1039UPS_15-5.enc	UPS 15.5	No	Yes	Configurable
SMT	1040	SMT1040UPS_15-0.enc	UPS 15.0	No	No	Configurable
SMT	1041	SMT1041UPS_15-0.enc	UPS 15.0	No	No	Disabled
SMT	1050	SMT1050UPS_16-6.enc	UPS 16.6	Yes	Yes	Configurable
SMT	1059	SMT1059UPS_16-5.enc	UPS 16.5	Yes	Yes	Configurable
SMT	1060	SMT1060UPS_02-0.enc	UPS 02.0	Yes	Yes	Configurable
SMT	17	SMT17UPS_07-1.enc	UPS 07.1	No	No	Enabled
SMT	18	SMT18UPS_15-1.enc	UPS 15.1	No	No	Configurable
SMT	20	SMT20UPS_15-0.enc	UPS 15.0	No	No	Configurable
SMTL	1026	SMTL1026UPS_15-5.enc	UPS 15.5	Yes	Yes	Configurable
SMTL	1047	SMTL1047UPS_16-5.enc	UPS 16.5	Yes	Yes	Configurable
SMTL	1064	SMTL1064UPS_01-8.enc	UPS 01.8	Yes	Yes	Configurable
SMX	1003	SMX1003UPS_15-0.enc	UPS 15.0	No	No	Configurable
SMX	1031	SMX1031UPS_15-6.enc	UPS 15.6	No	Yes	Configurable
SMX	1050	SMX1050UPS_16-6.enc	UPS 16.6	No	Yes	Configurable
SMX	20	SMX20UPS_15-0.enc	UPS 15.0	No	No	Configurable
SMX	23	SMX23UPS_15-0.enc	UPS 15.0	No	No	Configurable
SRT	1001*	SRT1001UPS_02-9.enc	UPS 02.9	No	No	Enabled
SRT	1002	SRT1002UPS_15-1.enc	UPS 15.1	No	No	Disabled
SRT	1010	SRT1010UPS_15-5.enc	UPS 15.5	No	Yes	Enabled
SRT	1013	SRT1013UPS_15-1.enc	UPS 15.1	No	No	Disabled
SRT	1014	SRT1014UPS_15-1enc	UPS 15.1	No	No	Disabled
SRT	1019	SRT1019UPS_15-5.enc	UPS 15.5	No	Yes	Enabled
SRT	1020	SRT1020UPS_15-8.enc	UPS 15.8	No	Yes	Enabled
SRT	1021	SRT1021UPS_15-6.enc	UPS 15.6	No	Yes	Enabled
SRT	1024	SRT1024UPS_15-6.enc	UPS 15.6	No	Yes	Enabled
SRT	1025	SRT1025UPS_15-5.enc	UPS 15.5	No	Yes	Enabled
SRT	1043	SRT1043UPS_17-2.enc	UPS 17.2	Yes	Yes	Enabled
SRT	1044	SRT1044UPS_17-2.enc	UPS 17.2	Yes	Yes	Enabled
SRT	1045	SRT1045UPS_17-2.enc	UPS 17.2	Yes	Yes	Enabled
SRT	1046	SRT1046UPS_17-2.enc	UPS 17.2	Yes	Yes	Enabled
SRT	1088	SRT1088UPS_20-6.enc	UPS 20.6	Yes	Yes	Enabled
SRT	1089	SRT1089UPS_20-8.enc	UPS 20.8	Yes	Yes	Enabled
SRT	1090	SRT1090UPS_20-2.enc	UPS 20.2	Yes	Yes	Enabled
SRT	1091	SRT1091UPS_20-2.enc	UPS 20.2	Yes	Yes	Enabled
SRTL	1024	SRTL1024UPS_15-6.enc	UPS 15.6	No	Yes	Enabled
SRTL	1034	SRTL1034UPS_10-1.enc	UPS 10.1	Yes	Yes	Enabled
SRTL	1035	SRTL1035UPS_10-1.enc	UPS 10.1	Yes	Yes	Enabled
SRTL	1046	SRTL1046UPS_17-2.enc	UPS 17.2	Yes	Yes	Enabled
SRTL	1062	SRTL1062UPS_10-1.enc	UPS 10.1	Yes	Yes	Enabled
SRTL	1063	SRTL1063UPS_10-1.enc	UPS 10.1	Yes	Yes	Enabled
SRTL	1091	SRTL1091UPS_20-2.enc	UPS 20.2	Yes	Yes	Enabled
SRTL	1226**	SRTL1226UPS_03-8.enc	UPS 03.8	No	Yes	Enabled
SRTL	1227**	SRTL1227UPS_01-2.enc	UPS 01.2	No	Yes	Enabled
SRYL	1225***	SRYL1225UPS_18-0.enc	UPS 18.0	No	Yes	Enabled
XP	1016	XP1016UPS_15-1.enc	UPS 15.1	No	No	Enabled
XU	1017	XU1017UPS_15-7.enc	UPS 15.7	No	Yes	Disabled
XU	1025	XU1025UPS_15-5.enc	UPS 15.5	No	Yes	Enabled
XU	1033	XU1033UPS_15-7.enc	UPS 15.7	No	Yes	Disabled
XU	1043	XU1043UPS_17-2.enc	UPS 17.2	No	Yes	Enabled
XU	1088	XU1088UPS_20-6.enc	UPS 20.6	No	Yes	Disabled

\n

\n

Notes: 

\n\n

Step 5 – The majority of UPS models support firmware update with output on. Refer to the above table, and if you have a UPS that supports firmware update with output on, go to Step 6.

NOTE: For UPS devices that require the UPS output to be off before initiating the update, ensure that network access is not dependent on the UPS for power, when updating via the Network Management Card.

If network access is dependent on the UPS for power, refer to FA279197 for instructions on updating the UPS firmware using the Firmware Upgrade Wizard.

If network access is not dependent on the UPS for power, ensure the attached load is correctly shut down before proceeding with turning off the UPS output.



To turn off the UPS output, from the NMC web interface choose “Control”, then “UPS”:





Step 6 – Navigate to the "Configuration" Menu, select "Firmware Update", then use the "Choose File" button to browse for the correct firmware file downloaded and identified in Step 4.
Once the correct Firmware file has been selected, click the “Update UPS” button to apply the update.


 
The below window will open after selecting “Update UPS”



Notes:

\n

1. The update may take several minutes. When this window closes, the update is complete. Verify that the new UPS Firmware version is shown using the same procedure shown in Step 3.

\n

• Note: For Smart UPS Modular Ultra, the update may take more than 20 minutes to complete

\n

1. If the update does not complete, or if any errors are displayed, ensure that the conditions in Step 1 are met. Try updating the UPS firmware with the UPS output turned off. If no alarms are shown, try updating the UPS firmware using the Firmware Upgrade Wizard, which can be found in FA279197.

\n

 
Step 7 - If the UPS output was turned off in Step 5, the UPS output should now be turned back on.
From the NMC web interface choose “Control”, then “UPS”
“Skip outlet on delays” may be selected if required to restore power immediately.



The attached load can now be turned on.

\n\n\n\n"},{"Title":"What is the maximum ambient temperature that a transformer can be installed in?","UrlName":"FA120978","LastModifiedDate":"15/12/2025","products":"Low Voltage Transformers","score":1.0008412618928393,"firstpublisheddate":"21/11/2007","answer":"

Issue:
Ventilation and cooling is an important issue in the installation and operation of transformers

Product Line:
LV Transformers

Environment:
Applies to all Low Voltage (LV) Transformers by SquareD/Schneider Electric

Cause:
Excessive heat is destructive to transformers

Resolution:
The average ambient temperature for a transformer over a 24 hour period should not exceed 30 degrees Celsius. For instance, if the transformer ambient temperature was 40 deg. C for 12 hours, then the transformer must not exceed 20 deg. C for the remaining 12 hours to average a 30 deg. ambient temperature.

If the average ambient temperature exceeds 30 degrees Celsius, the derating factor is 0.4% reduction of VA for every degree Celsius above 30 degrees Celsius per IEEE C57 12.96. The IEEE formula that is used to derive the 0.4% factor is valid only up to an AVERAGE of 50 degrees Celsius. Also, using transformers above their listed ambient temperature can shorten the life of the transformer. Due to the number of other factors involved, such as loading, frequency of use, and humidity, no data exists on how high ambient temperatures affect the life of a transformer.


 

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