Yaskawa GPD 506/P5 Section Three - Manual (Page 6)

PP.P5G5.03.Troubleshoot
Page 6
Rev. 06/11/2003
Designed to protect the inverter.
Output current has exceeded OC level of the inverter
rated value instantaneously. OC
Over current
oc
Designed to protect the inverter.
Inverter output grounding current has exceeded 50%
of the inverter rated current.
GF
Ground Fault
gf
Possible Cause(s): Shorted inverter output phase to phase, shorted motor, locked rotor.
Corrective Action: Remove the motor and run the inverter without the motor. Check the
motor for a phase to phase short. Check the inverter for a phase to phase short at the output.
Possible Cause(s): Motor lead shorted to ground, DCCT defective.
Corrective Action: Remove the motor and run the inverter without the motor. Check the
motor for a phase to ground short. Check the output current with a clamp on meter to verify the
DCCT reading.
505
Fault Codes
Major Fault
- Motor coasts to a stop, the fault is displayed on the digital
operator, and the fault relay is activated.
OC – 200%
20P4 – 2015
40P4 – 4015
51P5 - 5160
OC – 180%
2018 – 2075
4018 – 4160
506
√
515
√