3-60
•
••
•
Chapter 3 Paramters/Functions Innovation Series Medium Voltage GP Type - G Drives GEH-6385
Faults and alarms
The following table sp ecifies the faults and alarms tha t the Motor Overtemperature
Detection function declares.
Fault/Alarm Description
Motor over t emp Occ urs when the state o f the motor overt emperature
circuit is Force False, indicating that the circuit is open ,
and parameter Motor OT fault mode is set to Trip flt
Motor temp hot Occur s when the state o f the motor overtem perature
circuit is Force False, indicating that the circuit is open ,
and parameter Motor OT fault mode is set to Alarm fault
Function description
The parameters Motor OT fault sel gen erally selects digital inputs (var iables Digital
input 1, …, Digital input 6). The Motor Overtemperature Detection may be disabled
by setting Motor OT fault sel equal to Unused.
Phase Current Protecti on
The drive con tains several di agnostic and prot ective featur es involving the Phase
Current Protection.
Diagnostic variables
The following table sp ecifies the Phase Current Protection diagnostic variables.
Variable Description
Phase A current Filtered phase A current. Amps
Phase B current Filtered phase B current. Amps
Phase C current Filtered phase C current. Amps
Phs A current offset Calculated phase A current offset. Amps
Phs B current offset Calculated phase B current offset. Amps
Phs C current offset Calculated phase C current offset. Amps
Faults and alarms
The following table sp ecifies the faults and alarms associ ated with the Phase Current
Protection.
Fault/Alarm Description
Phase A cur off set Tr ip fault that occurs when the phase A current offset is
too high.
Phase B cur offset Trip fault that occurs when the phase B current offset is
too high.
Phase C cur offset Trip fault that occurs when the phase C current offset is
too high.