514 StarCool Alarm Codes And Actions

514   Invalid power sup
Description FC Undervoltage Fault Alarm
Cause Indication of problems with supply voltage
Trouble
shooting		 Possible causes:

  • The FC is supplied with too low voltage for continuous operation.
  • Defective FC.

Trouble shooting:

  1. Try to correct the error by uploading the latest software version to the controller.
  2. Supply unit with correct power voltage according to specification.
  3. If voltage is within specification and not unstable, the FC may be defective and must be replaced.

If no FC replacement is available, the unit can be rewired for emergency

operation: See “11. Emergency Operation” p. 54
Criteria Supply voltage to FC is less than (<) 330 V AC with full load. The minimum voltage depends on the load of the FC.
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