Question 1

What is the replacement for a Schneider LA2DS2 ?

Accepted Answer

The replacement is a LADS2. This product is interchangeable with the previous product.Please refer the link below.https://www.se.com/au/en/product/LADS2/tesys-d---time-delay-auxiliary-contact-block---1-no-%2B-1-nc-screw-clamp-terminals/

Question 2

Instructions for Merlin Gerin timer CCT15837 or CCT15854

Accepted Answer

See the attached installation instructions for both timers.

Question 3

What is the replacement for the LC1D1810 at 415 volt?

Accepted Answer

The replacement for the LC1D1810 at 415 volt is the LC1D18N7.....comes with 1 N/O and 1 N/C auxiliary already fitted as standard. https://www.clipsal.com/products/detail?CatNo=LC1D18N7&itemno=LC1D18N7&backto=/search?q=LC1D18N7&tab-document-1=0

Question 4

How many contact blocks can fit on the ZB5 or ZB4 operators?

Accepted Answer

Issue:What is the maximum number of contact blocks you can stack at the back of an XB4/XB5 operators?Product Line:22mm Push ButtonsEnvironment:ZB4/ ZB5 Harmony Push ButtonCause:Determine the maximum number of contact blocks for an application. Resolution: 9 contacts (3 side by side 3 rows deep) can mount behind standard non-illuminated buttons;6 behind selector switches, non-illuminated, illuminated push buttons, and non-illuminated push pull and turn to release mushroom buttons;4 behind illuminated push pull mushroom buttons, illuminated selector switches and non-illuminated trigger action mushroom buttons;3 behind non-illuminated push on push off buttons, and;2 behind illuminated push on push off buttons.The contact blocks enable variable composition of body sub-assemblies and can be stacked to 3 rows, either: 3 rows of 3 singlecontacts or 1 row of 3 double contacts + 1 row of 3 single contacts (double contact blocks occupy 2 rows).

Question 5

What is meant by common trip as it relates to a 2 or 3 pole breaker?

Accepted Answer

Issue: Does a handle switch trip both breakers? Product Line: Miniature Circuit Breaker Resolution: This means the 2 or 3 poles are linked internally and if any pole trips, they all open together. Single pole breakers linked externally with a handle tie are not common trip. One breaker (pole) tripping does not trip the others.

Question 6

What would cause a flashing C on the screen on an ATV21 / ATV212 drive?

Accepted Answer

Issue:ATV21 / ATV212 drive has a flashing C on the screenProduct Line:Altivar 21, Altivar 212.Environment:All models, All Serial numbers.Cause:Motor current in excess of the value set in F601. Note: If F701 is set to 1, then F601 setting is in Amperes. If parameter F701 is set to 0 then F601 setting is in percentage of the drive rated output current as listed on the drive nameplate. Factory default for F701 is 1, to indicate Amperes.Resolution:Ensure that F701 [Unit value selection (either % or Amps / Volts)] is set to desired setting, and:F601 is set properly for the motor being used: F601 is typically set to a level at 1.2 x motor nameplate FLA for variable torque loads, such as centrifugal pumps and fans. If the VFD is applied to a constant torque load, set F601 = 1.5 x FLA If these settings are correct, and current limit is still being reached, adjust the acceleration time (ACC) to a higher value. If Current limit is still being reached, investigate the incoming voltage to the drive: Measure this with the motor stopped, then measure it again when a run command is given. If the incoming voltage is dropping significantly when the run command is given, then the motor will naturally pull more current. Investigate the power quality coming into the drive and correct as needed. If the incoming voltage is not dropping significantly, investigate the mechanical properties of the installation. Check for bad bearings or blockage or input dampers / valves that are not fully open. If the drive is programmed to match the motor name plate information correctly, the motor is sized properly for the load, and there are no problems with the incoming power quality, then this is an indication that your motor has to work harder than it should for this application. Check for any mechanical reasons that would cause your motor to worker harder than expected. “If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions: Frequently Asked Questions - Schneider Electric (se.com) If this FAQ did not solve your issue, you can call us at 1-888-778-2733 Option 2 and then 4 or e-mail us at drive.products.support@se.com to create a case with our Technical Support Team. If you are not located in North America, please contact your local Customer Care Center for assistance: Support | Schneider Electric Global (se.com)“

Question 7

What is the IFE Module (LV434001)?

Accepted Answer

Product Line:Smart SystemsResolution:The interface ethernet (IFE) module allows you to view and streamline data from your low voltage electrical equipment assets and allows the display of status and energy data and alarm notification from each circuit breaker via TCP/ IP connectivity. The embedded web pages within the IFE module allow this data to be viewed on a web browser with a simple ethernet connection. Optional breaker on/off control is available through the web interface (with the appropriate accessories in the breaker). The IFE uses ULP (Universal Logic Plug data protocol) data directly from Micrologic trip units and converts the data to Modbus TCP/IP.

Question 8

How to program the ATV31 or ATV312 analog output for 4-20mA, 0-20mA or 0-10 V signal?

Accepted Answer

Issue:ATV31/ATV312 analog output configuration for 4-20mA, 0-20mA or 0-10 V signal Product line: ATV31, ATV312 Environment: All range All serial number Cause:How to get a feedback signal form the ATV312?Resolution: Steps to program the analog output of the ATV31 or ATV312 1). Press the enter key to REF2). Turn dial (ATV312) or press the down arrow (ATV31) to I-O menu Press enter3). Turn dial or press the down arrow to AO1t Press enter The following selections are available, choose one and press enter a). 0A – Current – 0-20mA configuration (use terminal AOC) b). 04 – Current – 4-20mA configuration (use terminal AOC) c). 10U – Current – 0-10 V configuration (use terminal AOV)4). Press esc to AO1t5). Turn dial to d0 The following selections are available for the analog output, choose one and press enter a). OCr (motor current) – 20 mA or 10 V corresponds to twice nominal drive current b). OFr (Motor Frequency) – 20 mA or 10 V corresponds to the maximum frequency(tFr) c). Otr (Motor Torque) - 20 mA or 10 V corresponds to twice nominal motor torque d). OPr (Power supplied) – Power supplied by the drive, 20 mA or 10 V corresponds to twice the drive power.6). Esc out of all menus. Drive is ready to run once the analog signal wiring is connected.

Question 9

What does the term "NEMA Type 1A" refer to?

Accepted 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.

Question 10

What is difference between BL and BD coils?

Accepted Answer

The difference between BL and BD Coils is a BL coil has a lower power consumption which is good for a contactor ONLY (no auxiliaries attached). Wherefore a BD coil has a normal power consumption but has the capability to use auxiliaries.

Question 11

How do I access the Tools Page in eDLT

Accepted Answer

Press and hold down the bottom left button, whilst continuing to hold then double press the top right button.Please note that access to the Tools Page can be disabled using C-Bus Toolkit software.

Question 12

Why choose Type B RCD for 3 Phase Variable Speed Drives?

Accepted Answer

For the 3 Phase Variable Speed Drives, the RCD type B or type B-Si is particularly suitable.It protects against fault currents with DC offset, which is true for three-phase power converters. In addition, it has enhanced immunity against nuisance tripping caused by: EMC common mode filters connected upstream VSD.Type B has a tripping delay allowing the inrush current to flow on power up.The permanent switching leakage currents existing in power converters (ex: 25kHz).Type B includes a "low pass" filter to ensure a trigger threshold that increases with frequency while complying with the personal protection curve (fibrillation). Please note: if the required sensitivity is 300mA, Selective type RCD should be proposed ensuring a non-triggering time of 50ms. More information can be found on the Earth Fault Protection guide: https://download.schneider-electric.com/files?p_enDocType=Catalog&p_File_Name=CA908066E+%28web%29.pdf&p_Doc_Ref=CA908066EWith regards to installation of these RCDs, they are mounted upstream of the Variable Speed Drives.See below example Schneider Electric offers Acti9 iID range of 4 Pole RCDs type B available in 30 mA sensitivity and type B-Si available in 30 and 300 mA sensitivity (Selective type is available) Click this link below to view the complete range of Acti9 iID RCDs available in Australia: https://www.se.com/ww/en/product-country-selector/?pageType=product-range&sourceId=7559&N=781354987+3098582207+2355967283+39384534

Question 13

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 14

What is the selection criterion of Circuit Breakers for the Capacitor bank application.

Accepted Answer

The selection should be done after derating the Circuit Breaker taking into consideration voltage variation and capacitors tolerances that could increase nominal current up to 1.5In. The Derating factor of 1.5In Where In = Q/ ( Square root of 3 ) Un Q = Capacitor Power Un = Nominal Voltage Choose the Micrologic with delay time selection, so that the Circuit Breaker does not trip due to initial high inrush current. Also to be taken into account are the parameters like supply frequency, operating voltage & harmonics level of the power system for such application. Refer the attached sheet for further details for selection of Circuit Breaker for Capacitor duty application. Note: Use the phase barrier between the phases in Circuit Breaker to prevent flashover due to heavy inrush current.

Question 15

What are the effects of dV/dt on a Motor when using a VSD?

Accepted Answer

As there is an impedance mismatch at the termination of the motor cable to the motor, there will be a reflected wave which travels back along the motor cable causingovervoltage’s. Overvoltage’s on the motor terminals can cause both partial and corona discharge which eventually wears down the winding insulation to failure. Corona discharge occurs when the overvoltage is large enough to cause electrons to flow from one winding to another whilst ionising the air between the conductors. They cause damage to the internal and external insulating material respectively. As the motor cable length increases the peak voltage increases. This can increase to a value of 2 to 2.5 times the DC bus voltage. Schneider Electric Offer Sinus filters or dv/dt filters to reduce the overvoltage across windings and high frequency currents in differential mode. Check out our current ATV600 or ATV900 catalogue for more information on output filters to help you with overvoltage mitigation.

Question 16

What is DPF ?

Accepted Answer

Displacement Power FactorDisplacement Power Factor is caused by a reactive component in the load.

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