GE Industrial Solutions AF-600 FP High Power (460V_575V 150HP and above) - Manual (Page 54)

Troubleshooting:
Check if motor is overheating.
If the motor is mechanically overloaded
That the motor par. P-03 Motor Current is set correctly.
Motor data in parameters P-02 through P-07 are set correctly.
The setting in par. F-11 Motor External Fan.
Run auto tune in par. P-04 Auto Tune.
WARNING/ALARM 11, Motor thermistor overtemp
The thermistor or the thermistor connection is disconnected. Select whether the frequency converter gives a warning or an alarm when the counter reaches
100% in par. F-10 Electronic Overload .
Troubleshooting:
Check if motor is overheating.
Check if the motor is mechanically overloaded.
Check that the thermistor is connected correctly between terminal 53 or 54 (analog voltage input) and terminal 50 (+10 V supply), or between terminal
18 or 19 (digital input PNP only) and terminal 50.
If a KTY sensor is used, check for correct connection between terminal 54 and 55.
If using a thermal switch or thermistor, check the programming of par. F-12 Motor Thermistor Input matches sensor wiring.
If using a KTY sensor, check the programming of parameters H-95, H-96, and H-97 match sensor wiring.
WARNING/ALARM 12, Torque limit
The torque is higher than the value in par. F-40 Torque Limiter (Driving) (in motor operation) or the torque is higher than the value in par. F-41 Torque Limiter
(Braking) (in regenerative operation). par. SP-25 Trip Delay at Torque Limit can be used to change this from a warning only condition to a warning followed by an
alarm.
See section 5.1 for troubleshooting.
WARNING/ALARM 13, Overcurrent
The inverter peak current limit (approx. 200% of the rated current) is exceeded. The warning lasts about 1.5 sec., then the frequency converter trips and issues an
alarm. If extended mechanical brake control is selected, trip can be reset externally.
Troubleshooting:
This fault may be caused by shock loading or fast acceleration with high inertia loads.
Turn off the frequency converter. Check if the motor shaft can be turned.
Make sure that the motor size matches the frequency converter.
Incorrect motor data in parameters P-02 through P-07.
See section 1.9 for current trip points.
ALARM 14, Earth (ground) fault
There is a discharge from the output phases to earth, either in the cable between the frequency converter and the motor or in the motor itself.
See section 1.9 for trip levels.
Troubleshooting:
Turn off the frequency converter and remove the earth fault.
Measure the resistance to earth of the motor leads and the motor with a megohmmeter to check for earth faults in the motor.
Perform the current sensor test (section 6.3.14).
See section 5.2 for more details.
ALARM 15, Hardware mismatch
A fitted option is not operational with the present control board hardware or software.
Record the value of the following parameters and contact your GE supplier:
par. ID-40 Drive Type
par. ID-41 Power Section
par. ID-42 Voltage
par. ID-43 Software Version
par. ID-45 Actual Typecode String
AF-650 GP and AF-600 FP High Power Service Manual
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