What would cause the ATS46 to go out on overcurrent?
The Fault code is OcF:
Possible Causes are:
* High impedance short circuit at the output of the controller
* Internal short circuit
* Improper sequence of shorting contactor
Possible Corrective action:
Remove power from unit and check for:
-Damage to power cables and/or motor insulation
-Damage to thyristors
-Damage to shorting contactor/contactor stuck in closed position
If none of the obvious is seen then
-- identify exactly when the fault is occurring in relation to startup
-- identify what In, ILt and acceleration are set for
-- identify what is the full load amperage of motor
-- and determine the currents being pulled in the LCR parameter of starter.
After obtaining this information contact Schneider Electric Product Support for further assistance.