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What causes the line isolation contactor to pull in when you power up the ATS480 soft starter?
Issue:
The line isolation contactor is not pulling in when you power up the ATS48 soft starter.

Product Line:
Altistart ATS48, ATS480 soft starters

Resolution:
The R1 relay (R1A and R1C) is a dry contact, and normally controls the isolation contactor control circuit.  If R1 is programmed for fault, the R1 relay will close or energize when you apply control voltage to CL1 CL2.
If R1 is programmed for isolation, the R1 relay will close only after you get the soft starter a run command.

To check the programming:
  1. Power up the drive
  2. Arrow down to IO ( inputs and outputs) menu  ENTER
  3. Arrow down to r1 ENTER
  4. R1F= fault, R1I= isolation
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)

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Attachment(s)
ATS48 Y Range basic.pdf [1.78 MB]
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