GE AF-600 FP Design And Installation Manual page 93

Warnings and Alarms
Troubleshooting
Remove power and check if the motor shaft can
be turned.
Make sure that the motor size matches the
adjustable frequency drive.
Check parameters P-02, P-03, P-06, P-07, F-04 and
F-05 for correct motor data.
ALARM 14, Ground fault
There is current from the output phases to ground, either
in the cable between the adjustable frequency drive and
the motor or in the motor itself.
Troubleshooting:
Remove power to the adjustable frequency drive
and repair the ground fault.
Check for ground faults in the motor by
measuring the resistance to ground of the motor
leads and the motor with a megohmmeter.
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:
9 9
ID-40 Drive Type
ID-41 Power Section
ID-42 Voltage
ID-43 Software Version
ID-45 Actual Typecode String
ID-49 SW ID Control Card
ID-50 SW ID Power Card
ID-60 Option Mounted
ID-61 Option SW Version (for each option slot)
ALARM 16, Short-circuit
There is short-circuiting in the motor or motor wiring.
Remove power to the adjustable frequency drive and
repair the short circuit.
WARNING/ALARM 17, Control word timeout
There is no communication to the adjustable frequency
drive.
The warning will only be active when O-04 Control Word
Timeout Function is NOT set to [0] Off.
If O-04 Control Word Timeout Function is set to [5] Stop and
Trip, a warning appears and the adjustable frequency drive
ramps down until it stops then displays an alarm.
9-6
AF-600 FP Design and Installation Guide
Troubleshooting:
ALARM 18, Start failed
The speed has not been able to exceed AP-70 Compressor
Start Max Speed [RPM] during start within the allowed time.
(set in AP-72 Compressor Start Max Time to Trip). This may
be caused by a blocked motor.
WARNING 23, Internal fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in SP-53 Fan Monitor ([0] Disabled).
Troubleshooting
WARNING 24, External fan fault
The fan warning function is an extra protective function
that checks if the fan is running/mounted. The fan warning
can be disabled in SP-53 Fan Monitor ([0] Disabled).
Troubleshooting
ALARM 29, Heatsink temp
The maximum temperature of the heatsink has been
exceeded. The temperature fault will not reset until the
temperature falls below a defined heatsink temperature.
The trip and reset points are different based on the
adjustable frequency drive power size.
Troubleshooting
Check for the following conditions.
DET-768A
Check connections on the serial communication
cable.
Increase O-03 Control Word Timeout Time
Check the operation of the communication
equipment.
Verify a proper installation based on EMC
requirements.
Check for proper fan operation.
Cycle power to the adjustable frequency drive
and check that the fan operates briefly at start-
up.
Check the sensors on the heatsink and control
card.
Check for proper fan operation.
Cycle power to the adjustable frequency drive
and check that the fan operates briefly at startup.
Check the sensors on the heatsink and control
card.
Ambient temperature too high.
Motor cable too long.
Incorrect airflow clearance above and below the
adjustable frequency drive.
Blocked airflow around the adjustable frequency
drive.