GE AF-650 GP Programming Manual page 171

Troubleshooting
WARNING 49, Speed limit
When the speed is not within the specified range in F-18
and F-17, the frequency converter shows a warning. When
the speed is below the specified limit in H-36 Trip Speed
Low [RPM] (except when starting or stopping) the
frequency converter will trip.
ALARM 50, Auto tune calibration failed
Contact your GE supplier or GE Service Department.
ALARM 51, Auto tune check U
The settings for motor voltage, motor current and motor
5 5
power are wrong. Check the settings in parameters P-02,
P-03, P-06, P-07, F-04 and F-05.
ALARM 52, Auto tune low I
The motor current is too low. Check the settings.
ALARM 53, Auto tune motor too big
The motor is too big for the Auto tune to operate.
ALARM 54, Auto tune motor too small
The motor is too small for the Auto tune to operate.
ALARM 55, Auto tune parameter out of range
The parameter values of the motor are outside of the
acceptable range. Auto tune will not run.
ALARM 56, Auto tune interrupted by user
The user has interrupted the Auto tune.
ALARM 57, Auto tune internal fault
Try to restart Auto tune again. Repeated restarts can over
heat the motor.
ALARM 58, Internal fault
Contact your GE supplier.
WARNING 59, Current limit
The current is higher than the value in F-43 Current Limit.
Ensure that Motor data in parameters P-02, P-03, P-06,
P-07, F-04 and F-05 are set correctly. Possibly increase the
current limit. Be sure that the system can operate safely at
a higher limit.
WARNING/ALARM 61, Feedback error
An error has been detected between calculated speed and
speed measurement from feedback device. The function
Warning/Alarm/Disabling setting is in H-20 Motor Feedback
Loss Function. Accepted error setting in H-21 Motor
Feedback Speed Error and the allowed time the error occur
setting in H-22 Motor Feedback Loss Timeout. During a
commissioning procedure the function may be effective.
WARNING 62, Output frequency at maximum limit
The output frequency has reached the value set in
F-03 Max Output Frequency 1. Check the application to
determine the cause. Possibly increase the output
frequency limit. Be sure the system can operate safely at a
higher output frequency. The warning will clear when the
output drops below the maximum limit.
170
AF-650 GP Programming Guide
and I
nom nom
nom
ALARM 63, Mechanical brake low
The actual motor current has not exceeded the "release
brake" current within the "Start delay" time window.
WARNING/ALARM 65, Control card over temperature
The cut-out temperature of the control card is 80 °C.
Troubleshooting
•
Check that the ambient operating temperature is
within limits
•
Check for clogged filters
•
Check fan operation
•
Check the control card
WARNING 66, Heatsink temperature low
The frequency converter is too cold to operate. This
warning is based on the temperature sensor in the IGBT
module.
Increase the ambient temperature of the unit. Also, a
trickle amount of current can be supplied to the frequency
converter whenever the motor is stopped by setting
B-00 DC Hold Current at 5% and H-80 Function at Stop
ALARM 67, Option module configuration has changed
One or more options have either been added or removed
since the last power-down. Check that the configuration
change is intentional and reset the unit.
ALARM 69, Power card temperature
The temperature sensor on the power card is either too
hot or too cold.
Troubleshooting
Check that the ambient operating temperature is
within limits.
Check for clogged filters.
Check fan operation.
Check the power card.
ALARM 70, Illegal drive configuration
The control card and power card are incompatible. Contact
your supplier with the model number of the unit from the
nameplate and the part numbers of the cards to check
compatibility.
WARNING 76, Safe stop auto restart
The required number of power units does not match the
detected number of active power units.
WARNING 77, Reduced power mode
This warning indicates that the frequency converter is
operating in reduced power mode (i.e. less than the
allowed number of inverter sections). This warning will be
generated on power cycle when the frequency converter is
set to run with fewer inverters and will remain on.
ALARM 78, Tracking error
The difference between set point value and actual value
has exceeded the value in H-25 Tracking Error. Disable the
function by H-24 Tracking Error Function or select an alarm/
warning also in H-24 Tracking Error Function. Investigate the
mechanics around the load and motor, Check feedback
DET-618C