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What will cause an Altistart 46 or Altistart 48 to fault on an FrF (Frequency Fault)?

Issue:
What will cause an Altistart 46 or Altistart 48 to fault on an FrF (Frequency Fault)?

Product Line:
ATS46/48

Environment:
All serial numbers for ATS46/48

Cause:
N/A

Resolution:

Possible Cause:
• Mains supply frequency outside acceptable limits.
Corrective Action:
Check that the frequency is between
• 60 Hz +/- 3.6 Hz (56.4 Hz to 63.6 Hz)
• 50 Hz +/- 2.5 Hz (47.5 Hz to 52.5 Hz)

Check the internal connections in the soft start.  If they are all ok, then suspect a problem with the ATS46 or ATS48 Main Control Board .
The ATS46 Main Control Board is no longer available and would need to be replaced with a ATS48 soft start. The ATS48 Main Control Board part number is VX4G481
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