GE AF-650 GP Operating Instructions Manual page 101

Warnings and Alarms
operation). 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.
WARNING/ALARM 13, Over Current
The inverter peak current limit (approx. 200% of the rated
current) is exceeded. The warning lasts about 1.5 sec., then
the drive 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 drive. Check if the motor shaft can
be turned.
Check that the motor size matches the drive.
6 6
Incorrect motor data in P-07 Motor Power [kW]
through P-06 Base Speed.
ALARM 14, Earth (ground) fault
There is a discharge from the output phases to earth,
either in the cable between the drive and the motor or in
the motor itself.
Troubleshooting:
Turn off the drive and remove the earth fault.
Measure the resistance to ground of the motor
leads and the motor with a megohmmeter to
check for earth faults in the motor.
Perform current sensor test.
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:
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
ALARM 16, Short circuit
There is short-circuiting in the motor or on the motor
terminals.
Turn off the drive and remove the short-circuit.
WARNING/ALARM 17, Control word timeout
There is no communication to the drive.
The warning will only be active when O-04 Control Word
Timeout Function is NOT set to OFF.
100
AF-650 GP High Power Operating Instructions
If O-04 Control Word Timeout Function is set to Stop and
Trip, a warning appears and the drive decels until it trips,
while giving an alarm.
Troubleshooting:
WARNING 22, Hoist Mech. Brake:
Report value will show what kind it is.
0 = The torque ref. was not reached before timeout.
1 = There was no brake feedback before timeout.
WARNING 23, Internal fan fault
The fan warning function is an extra protection function
that checks if the fan is running / mounted. The fan
warning can be disabled in SP-53 Fan Monitor ([0]
Disabled).
For the unit sizes 4X, 5X and 6X, the regulated voltage to
the fans is monitored.
Troubleshooting:
WARNING 24, External fan fault
The fan warning function is an extra protection function
that checks if the fan is running / mounted. The fan
warning can be disabled in SP-53 Fan Monitor ([0]
Disabled).
For the unit sizes 4X, 5X and 6X, the regulated voltage to
the fans is monitored.
Troubleshooting:
WARNING 25, Brake resistor short circuit
The brake resistor is monitored during operation. If it short
circuits, the brake function is disconnected and the
warning appears. The drive still works, but without the
brake function. Turn off the drive and replace the brake
resistor (see B-15 Brake Check).
WARNING/ALARM 26, Brake resistor power limit
The power transmitted to the brake resistor is calculated:
as a percentage, as a mean value over the last 120
seconds, on the basis of the resistance value of the brake
resistor, and the intermediate circuit voltage. The warning
is active when the dissipated braking power is higher than
90%. If Trip [2] has been selected in B-13 Braking Thermal
Overload, the drive cuts out and issues this alarm, when
the dissipated braking power is higher than 100%.
Check connections on the serial communication
cable.
Increase O-03 Control Word Timeout Time
Check operation of the communication
equipment.
Verify proper installation based on EMC
requirements.
Check fan resistance.
Check soft charge fuses.
Check fan resistance.
Check soft charge fuses.