How do I troubleshoot an ATS48 soft starter with no +24vdc power supply?
Issue:
ATS48 soft starter with no +24vdc power supply
Product Line:
Altistart ATS48
Environment:
All
Cause:
Missing the +24vdc power supply
Resolution:
- Check the 120VAC or 230VAC control voltage on CL1 and CL2
- Check the +24vdc to com terminals make sure you meter is DC voltage range.
- Check J6 ribbon cable on the power board inside the soft starter. There are 2 sets of twisted pairs of wires. One set will have +24vdc, and one set will have +10vdc. If these voltages are not present, then you may have an issue with the power board. If you have these voltages, then it might be a problem with the MCB Main control board.
Released for: Schneider Electric Philippines
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