Question 1

What are the coil voltage codes used for contactors and relays?

Accepted Answer

Schneider Electric Industrial Control (Previously Telemecanique) voltage codes are a 2 character code added to the end of a part number. The first character indicates the voltage, the second indicates the frequency. Here are some of the most common coil voltage codes: 1st Character2nd CharacterB (24V)5 (50Hz)F (110V)6 (60Hz)P (230V)7 (50/60Hz)U (240v)D (DC)V (400V)N (415V) For example: BD = 24V DCF7 = 110V AC 50/60Hz etcMost AC coils currently offered are "7", 50/60Hz. P7 and V7 refers to 230VAC and 400VAC. These voltages are the European Standard voltages for single and three phase supplies. In reality, actual generated voltages have remained the same - mainland Europe & the Irish Republic standard supply is still 220V AC/380V AC 50Hz, UK is still 240V AC/415V AC 50Hz. It is the standard which has been modified to suit both sets of voltages. Consequently, any piece of equipment which is rated at 230V AC must be suitable for use at both 220V AC at the the lower end and 240V AC at the upper end. Equipment rated 400V must be suitable for use at 380 to 415V AC.220V and 380V AC coils (M and Q) are optimised for use at actual mainland European voltages, as are 240 and 415VAC coils (U and N) optimised for use with UK voltages of 240/415VACExamples of how these codes are used:1) Motor Contactor 9A AC3 with a 110V AC 50/60Hz Coil LC1D09F7F = 110V7 = 50/60Hz 2) Miniature Plug-in Relay 6A 4 C/O contacts 24V AC with LED RXM4AB2B7B = 24V7 = 50/60Hz 3) Zelio compact smart relay Zelio Logic - 12 I O - clock - display - Powered by 24 V DC SR2B121BDB = 24VD = DC Note: Beside the traditional coils mentioned above, some of our contactors can also have Electronic coils. One of the advantages of the Electronic coils is that instead of having a specific coil voltage you will have a range instead. Common electronic coil codes will be:BNE - 24-60V AC/DC EHE - 48-130V AC/DCKUE - 100-250V AC/DC

Question 2

What is LSC (loss of service continuity category)

Accepted Answer

LSC stands for: Loss of Service Continuity category The IEC 62271-200 proposes user-oriented definitions and classifications intended to describe how a given switchgear can be accessed, and what will be the consequences on the installation.When the accessibility of the various compartments are known, then the consequences of opening a compartment on the operation of the installation can be assessed; it is the idea of Loss of Service Continuity which leads to the LSC classification proposed by the IEC: “category defining the possibility to keep other high-voltage compartments and/or functional units energised when opening a accessible high-voltage compartment”.Several categories are defined, according to “the extent to which the switchgear and control gear are intended to remain operational in case access to a high-voltage compartment is provided”: LSC1: If any other functional unit than the one under intervention has to be switched off, then service is partial only:LSC2 If at least one set of busbars can remain live, and all other functional units can stay in service, then service is optimal:LSC2A or LSC2B: If within a single functional unit, other(s) compartment(s) than the connection compartment is accessible, then suffix A or B can be used with classification LSC2 to distinguish whether the cables shall be dead or not when accessing this other compartment. If no accessible compartment is provided, then the LSC classification does not applyFor a more complete description please download the Medium Voltage technical guide.

Question 3

Which is the default user and password for the Modicon M172?

Accepted Answer

If it is the first time you connect to the Modicon M172 via USB cable and the EcoStruxure Machine Expert HVAC asks you for credentials you will need to use this: User: administrator Password: password If you want to connect to the WebServer of the M172 and it asks you for credentials the default is: User: administrator Password: password

Question 4

What are the tripping curves for the NSX breakers?

Accepted Answer

These are available in the full catalogue "Compact NSX" See link below:ComPacT NSX & NSXm Circuit Breakers and Switch Disconnectors from 16 to 630A up to 690V - 2024 Catalogue | Schneider Electric (se.com)More information regarding the graphs and how to read them are on the pages below: NSX 100/160/250 breakers:The TMD trip units are on pages 349-351.The Micrologic 2.2 and 4.2 trip units are on page 355.The Micrologic 5.2, 6.2 and 7.2 units are on page 356.NSX400 and 630 breakersThe Micrologic 2.3, 4.3, 5.3, 6.3 and 7.3 units are on pages 359-360.An example of the format is shown below

Question 5

How do I upgrade the firmware on an APC Network Management Card (NMC) or NMC embedded device?

Accepted Answer

Issue 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. Product Line Network Management Card 2 - AP9630, AP9631, AP9635Network Management Card 3 - AP9640, AP9641, AP9643Network Management Card 3 for Easy UPS – AP9544, AP9547Network Management Card 4 – AP9644 Environment All serial numbersAll firmware versions (unless otherwise noted) CauseUsers 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-nmcResolutionFind Correct FirmwareWhen 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. AP9630, AP9631, AP9635 - Network Management Card 2AP9641, AP9641, AP9643 - Network Management Card 3AP9544, AP9547 - Network Management Card 3 for Easy UPS The application firmware required depends on what product your NMC is installed in. Some examples include: For NMC2 devices: SUMX for Smart-UPS 1-PhaseSY for Symmetra 1-Phase UPSSY3P for Symmetra 3-Phase UPS For NMC3 devices: SU for Smart-UPS 1-PhaseSY for Symmetra 1-Phase UPSSUCAN for Smart-UPS UltraRPDU2G for rPDU (Rack Power Distribution Unit)SY3P for Symmetra 3-Phase UPS For Easy UPS NMC devices: EU1P for Easy UPS 1-PhaseEU3P for Easy UPS 3-Phase 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 Navigate to www.apc.com/secure-nmc and click the Software and Firmware tab.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.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. 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. Update FirmwareThere 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. 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) Secure NMC System (SNS) Tool - Network Management Card 3 (firmware versions 3.0 and higher) 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. 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 SFNMC3FMTEU1PSecure NMC System Tool for Easy UPS On-Line 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. Double-click the self-extracting ZIP file. Add devices to the SNS Tool: To add one at a time: Click Add Devices and enter: the NMC’s IP address/FQDN/hostname 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. the user name and password To add more than one at a time: 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. Save and close the devices.csv file. In the SNS Tool, click Add Devices. Click Import Device File – this button only appears if data is detected in the devices.csv file. Click Query Devices. Click Query Devices. Click Add Devices. Activate licenses for selected NMCs: 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. 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). Update firmware for selected NMCs: 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). Universal Serial Bus (USB) 1.1 – Network Management Card 2* devices with USBNOTE: *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: Firmware ModuleBinary 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 *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.binAOS=apc_hw05_aos_xx.binAPP=apc_hw05_sumx_xx.binLANG=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. Download the firmware upgrade file.Create a folder named apcfirm on the USB flash drive.Place the .nmc3 file in the apcfirm directory.Use a text editor to create a file named nmc3.rcf. (The file extension must be .rcf, not .txt for example.)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.nmc3Place nmc3.rcf in the apcfirm folder on the flash drive.Insert the flash drive into a USB port on your NMCReboot the NMC and wait for the card to reboot fully. 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. 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.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.Once you enter the IP address, click enter.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.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. 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. 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.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. 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 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 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 2NOTE: 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 apcC:\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 192.168.1.100220- APC FTP server ready.User (192.168.1.100 :(none)): apc331 User name okay, need password.Password: apc230 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>byeC:\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.binNetwork Management Card 31. 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 apcC:\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 2NOTE: 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 3Use 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.

Question 6

Which is the software used to program the Harmony ST6 and Harmony STM6 range?

Accepted Answer

The software to program the Harmony ST6 range is EcoStruxure Operator Terminal Expert (former Vijeo XD ). The software can be download from the next link:EcoStruxure™ Operator Terminal Expert | Schneider Electric UK The Harmony ST6 include the next references:•HMIST6200 ( 4.3" W)•HMIST6400 ( 7" W)•HMIST6500 ( 10.1" W)•HMIST6600 ( 12.1" W)•HMIST6700 ( 15.6" W)The Harmony STM6 (modular HMI) include the next references:•HMISTM6200 ( 4.3" W) + HMISTM6BOX•HMISTM6400 ( 7" W) + HMISTM6BOXAfter the installation of EcoStruxure Operator Terminal Expert, the trial version of the software is available for 21 days and will have to beactivated with the commercial license. Once you have the software in order to download the application to the Harmony HMI we can use a microUSB cable like the HMIZG936:HMIZG936 - Harmony ST6, USB transfer cable | Schneider Electric UK For more information please access to https://digicat.se.com/ or direct to the catalog:https://download.schneider-electric.com/files?p_Doc_Ref=DIA5ED2181202EN

Question 7

What is the wiring scheme for a Direct on line (DOL) starter when connected to a single phase motor?

Accepted Answer

There are a number of issues:We do not manufacture a complete starter specifically for single phase motors but our 3 phase starters can be wired for single phase applications.Relative to their power output, single phase motors draw much greater current than 3 phase for 2 reasons:1. The supply voltage will normally be 240 or 220VAC instead of 415 or 380VAC as is the norm with 3 phase supplies. As power is the product of voltage x current then the current will have to be 415/240 = 1.73 times as great to achieve the same theoretical power.2. Single phase motors are considerably less efficient than 3 phase so losses are greater and current consumption greater still.This means that typically, single phase motor current will be at least double that of 3 phase motors of similar power output. As the power ratings of our starters are based on 415VAC 3 phase it becomes necessary to base starter selection on the full load current of the motor and NOT the power rating.ReversingIt is possible to use one of our reversing starters with single phase motors but it does require extensive rewiring to do so. This issue is complicated by the fact that there are a number of designs of single phase motors and the method of reversing varies between them. Therefore wiring a reversing starter for single phase operation is possible but can only be advised for those who fully understand the wiring techniques of their specific single phase motors and have the knowledge and experience to work out how to apply that to the reversing starter. Therefore reversing of single phase motors is not covered here.WiringSingle phase motors may have a number of connections in their terminal boxes, for main windings, start windings, capacitors, klixons or PTC devices etc. Regardless of the number of terminals present, they will all feed back to a simple live and neutral feed at some point, and it is in this feed that the starter will be connected so it will not be necessary to interfere with any of these internal connections (as would be necessary if dealing with a reversing starter). An example of the terminal arrangement for a single phase motor is shown below:The method of connection is similar to that of a 3 phase, except that for the motor overload to function properly all three poles must be populated. This is because the overloads have phase loss protection, so expect to see similar current flowing in all three poles. If only 2 poles are populated (live and neutral), the overload will sense no current in the third pole and trip accordingly (this can occur in anything between a few minutes, even seconds, up to 2 hours, according to conditions and circumstances).To prevent this the procedure is to run either the live or neutral (it does not matter which) through one pole of the contactor and overload, loop back up to go through a second pole in the contactor and overload and then to the motor. The remaining power feed wire will go straight through the third pole of the contactor/overload and then to the motor. The control wiring will be as that for the 240VAC coil version of the 3 phase system. The diagram below shows the wiring for a single phase motor and the path through the contactor and overload:Please see the attached diagram for guidance. This diagram illustrates possible wiring using a Tesys D (LC1D****) contactor and Tesys LRD overload (LRD**) and stop control is assumed to be by operation of the stop button on the overload. If a starter incorporating a Tesys K series contactor (LC1K****) is used then the connections between 95/14 and 96/A2 are made internally. In this case the start button connection will be to terminal 95 instead of 14 NOTE : These notes and diagrams provide a schematic method of achieving the control but it remains the responsibility of the installer to ensure that any safety requirements, local legislation and directives, circuit and personnel protection are met and/or provided. Installation of any moving or motorised industrial equipment should only be carried out by qualified persons familiar with electrical and machine safety requirements. Do you want to know more about this topic? Connect with our Experts through our online Community:

Question 8

What are the Torque settings for NSX MCCB power terminals?

Accepted Answer

Torque settings for NSX MCCB power terminals are below:100amp and less rated frames = 10Nm125-250amp rated frames = 15Nm400-630amp rated frames = 50Nm These are for the top and bottom power terminals

Question 9

What does light or dark switching mean when referring to photo electric sensors?

Accepted Answer

Please note - As of 01/09/23 the Telemecanique Sensors range is no longer part of Schneider Electric. This FAQ is now for reference only. For further information and contact details for Telemecanique Sensors, please visit their website; https://www.telemecaniquesensors.com/uk/en There are 3 main types of photo electric sensor used for detecting an object; Diffuse (sometimes also called proximity mode or direct detection). There is also a variation of diffuse called diffuse with background suppression (diffuse with BGS).Retro reflective (sometimes also called reflex). There is also a variation of reflex called polarised reflex (or polarised retro reflective). Through beam (sometimes also called thru' beam). Determining normally open (N/O) or normally closed (N/C) operation? Both the retro reflective and through beam sensors rely on the object 'breaking' the beam in order for it to be detected. Whereas the diffuse system requires the object itself to reflect the light beam.Because of this fundamental difference in the way the sensors detect an object, retro reflective and through beam sensor outputs are the inverse of diffuse sensors. This leads to a lot of confusion. Historically Within the photo electric industry, to overcome the confusion of referring to N/O or N/C outputs, the term 'light switching' and 'dark switching' was introduced; Light switching; A sensor that is light switching switches it's output 'on' when the light beam is returned to the receiver. i.e. If N/O operation is required, a light switching diffuse sensor could be used. Dark switching; A sensor that is dark switching switches it's output 'on' when the light beam blocked from returning the beam to the receiver. i.e. If N/O operation is required, a dark switching retro reflective or through beam sensor could be used. Recent developments To simplify product selection, Schneider Electric (under the Telemecanique brand) pioneered the concept (launched as Osiconcept) of 'object detection' with it's Osiris multimode range of sensors. With these products, irrespective of whether the sensor is configured for retro reflective, through beam or diffuse the output will default to N/O. Another feature of these multimode sensors is the ability to invert the output to achieve a N/C mode of operation.

Question 10

How can I cable to the PNP and NPN type outputs for sensors / detectors, using the wiring diagram?

Accepted Answer

PNP and NPN type outputs are available as 3-wire sensors with a DC voltage power supply (the voltage limits are dependent on the specific sensor): PNP type: switching on the positive voltage load NPN type: switching on the negative voltage load These outputs are typical of photoelectric detectors, inductive proximity and other types of sensors.For a detailed explanation of PNP vs NPN, see the following FAQ: FA142566 PNP output The load (relay coil, contactor relay input, PLC input) must be connected between the "-" negative terminal and the midpoint. The corresponding PLC input is Sink. NPN output The load must be connected between the "+" positive terminal and the midpoint. The corresponding PLC input is Source. Some sensors have two PNP and NPN outputs (4-wire sensors) which are wired according to the diagram below.Note that we no longer sell sensors. Telemecanique Sensors, who were previously part of the Schneider Electric brand, were sold in 2023. You can go to their website - www.telemecaniquesensors.com - for more information, including contact details.

Question 11

Why is Neutral and Earth (Ground) Connection forbidden Downstream from Main Panel?

Accepted Answer

The question is often asked what is the maximum voltage permitted between the Neutral and Earth (Ground) conductor and if the Neutral and Earth can be bridged to achieve a zero value.This can be a difficult topic, in fact in many cases it can be dangerous. As you will see from the attached document, there are many reasons why it is not allowed.

Question 12

What are the differences between snap-action and slow-break contacts in limit switches?

Accepted Answer

Note we no longer sell limit switches so the information given below is for information purposes only. You may still be able to buy Telemecanique limit switches (and some 9007 etc. ex-Schneider Electric ranges) but you'd need to go to them directly. This is their website for contact details and product information: www.telemecaniquesensors.com Snap actionThe speed of travel of snap-action contacts is not related to the speed of operation of the actuator. The actuator pretensions an "overcentre spring" mechanism and it is the spring tension which operates the contact once a certain tension has been achieved. This results in a very fast and assured operation of the contacts as the spring mechanisms "flicks" (or "snaps") over the trigger point and latches the contacts on. A similar action takes place on the release, i.e. as the actuator is released the spring tension reduces but the contacts do not move until the tension has dropped below a certain level, when the spring mechanism will snap the contacts open again.Slow BreakA "slow break contact" is one where the physical movement of the actuator is directly linked to the physical movement of the contact. This can give very precise positioning and synchronization of both make and break points but is susceptible to arcing and intermittent signalling at the crucial make/break position, where actuator movement is slow and/or erratic.Main differences between Snap Action and Slow BreakThe snap action contact mechanism inevitably creates a hysteresis effect, where the closing and opening of the switch have considerable overlap. Please see attached timing diagram example. This does not occur with slow break, as the movement of the contacts is directly linked to the movement of the switch / object.Slow break have a higher minimum actuation speed, to overcome the effect of sustain arcing on the contacts. Note that for applications that cause the switch to open a little and then re-close repeatedly / rapidly, this can reduce electrical durability over time.Both types commonly have positive opening N/C contacts (always check your switch to confirm), but snap action provide an assured signal at slower speeds, whereas slow break rely on the minimum actuation speed. This is why there is potential for intermittent signalling on slow break, if that minimum speed is not adhered to.Slow break can often switch bigger loads and offer higher electrical reliability values compared to snap action but please check product tables / data to confirm this on a case-by-case basis.Sequence of moving contactsTiming Sequence for "Snap Action". Note overlap of switching positions for different directions of travel.Timing sequence for "Slow Break". Note same position for make and break.

Question 13

How does the "Dead man's switch" or "Dead man's handle" position work on a controller handle?

Accepted Answer

Please note that we no longer sell joysticks, so this FAQ is for information only. Technological description The handle grip comprises a fixed part (lower section) and a moving part (upper section).Action on the upper part of the handle grip (pressing down) drives a sliding rod inside the control lever.This rod actuates a moving retainer which causes a change in electrical state of the contact element on the lower part of the mechanism, regardless of the position of the control lever. Operation In normal operation, the operator must maintain pressure on the handle grip to operate the machine.If the operator releases pressure (e.g. feels ill and passes out), even if they are still holding on to it, the electrical contact at the base will change state.

Question 14

What is the difference between the REFLEX mode and the POLARISED REFLEX mode on photo-electric sensors?

Accepted Answer

Note that we no longer sell these devices, this FAQ is for information only. Both systems comprise a transmitter and receiver (usually within a single-body sensor), and a reflector. The transmitter sends a beam which is bounced back by the reflector and detected by the receiver. An object passing through the beam blocks the reflection and triggers the sensing signal.REFLEX mode sensors may not be suitable for detecting reflective objects, as a shiny target may bounce the beam back to the sensor in the same way as the reflector. The sensor may not be able to tell the difference between the target and reflector and will therefore fail to detect the object. For maximum effectiveness the targets should be opaque or near opaque and should not be highly reflective in nature. However, the advantage of reflex mode sensors is that they give relatively long sensing distances.POLARISED REFLEX mode sensors have polarising filters over both the transmitter and receiving sensor. The filters are at 90 deg to each other which means that the receiver cannot see the transmitted beam as it will be blocked by the receiver filter. The reflector turns the polarised light waves through 90 deg so that the receiver can see them. Light bouncing off other objects is not rotated so it will not trigger the sensor. This means that the polarised reflex can be used to detect very reflective surfaces, even mirrors, polished metal and semi transparent materials. However, the sensing distance is shorter than REFLEX.

Question 15

How do I operate a star delta starter with 2 wire control?

Accepted Answer

First it is necessary to understand the difference between 2 and 3 wire control. Most motor systems that require operator action to start a motor use 3 wire control. This is a method by which a pulse of control voltage is applied, usually through a momentary pushbutton or spring return selector etc, to the control circuit. The pulse will bring in a contactor or relay which will electrically latch through one of it's own normally open contacts to hold itself in once the start button is released and the pulse removed. The stop button is usually a normally closed contact in series with the supply to the start button and coil of the latching relay, so that when pressed the contact will open, break the supply to the coil and the relay/contactor will drop out, and remain out, until the start device is again operated. Below is a simple diagram illustrating the principle of three wire control. Two wire control is much simpler, a straightforward on/off switch will do the job. Applying power to the control circuit starts the motor, removing the control voltage stops it. Below is a schematic of how a star delta starter can be operated in two wire control. 96 is the terminal for the NC contact on the overload relay, the run signal will be applied to terminal 95 to enable the overload to switch off the motor in the event of a motor fault. KM1 is the Star contactor, KM2 is the Line contactor and KM3 is the Delta. The timer is most commonly a pneumatic timer fitted to KM2 and will normally operate a few seconds (typically 5-30 seconds) after KM2 has energised. This type of operation will usually be found where a star delta is to be operated by a PLC, a pressure or temperature switch or some other device which is going to provide a simple on/off signal. Although 2 wire operation is theoretically simple, it does introduce some problems. Where the possibility of physical interaction between people and a piece of driven machinery exists it is necessary to prevent unexpected re-starts after an overload reset, power resumption after a power cut, emergency stop reset etc. 3 Wire control achieves this automatically as the latching contactor will drop out after a supply or control interruption and will not restart until another start signal is given. With two wire control the machine will restart immediately when power is restored unless the control signal has first been removed. This may not be an issue on an enclosed system, perhaps a ventilation system with enclosed fans etc but on something like a machine tool, saw, conveyor etc, it is essential that an opportunity is given for an operator to ensure everything is clear before initiating a restart. If control is by PLC or similar it may be possible to build into the software to detect an unintended stop and then require a reset input to the PLC before the PLC can restart the motor. Alternatively, an electromechanical system of de-energise and reset of control voltages could be applied. This may be a suitable solution where motors are controlled by a pressure or temperature switch etc. Attached is an example diagram of how such a circuit might be applied to a pressure switch. In this case, once a start signal has been applied the motor will be under the control of the pressure switch, but after a supply or control circuit interruption it will be necessary to press the start button again to reset the control circuit. Any emergency stop application must be upstream of the overload to ensure that in the event of an emergency stop the control circuit will be de-energised requiring a “Start” signal to reset the control supply.

Question 16

What is the difference between PNP and NPN when describing 3 wire connection of a sensor?

Accepted 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. WiringTraditional 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.

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