P32NDX – P32ND
OWNER’S MANUAL
10
FAULTS WHICH CANNOT BE AUTOMATICALLY RESET
Faults which cannot be automatically reset are listed in the table below. To clear these faults:
1.
Remove power from the drive controller.
2.
Wait for the display to go off completely.
3.
Determine the cause of the fault and correct it.
4.
Re-apply power.
FAULT
PROBABLE CAUSE
REMEDY
B L F
Brake Sequence
•
Brake release current not reached
•
Check the drive controller and motor
connections
•
Check the motor windings
C r F
Precharge Circuit
Fault
•
Precharge circuit damaged
•
Reset the drive controller
•
Replace the drive controller
I n F
Internal Fault
•
Internal fault
•
Internal connection fault
•
Remove sources of electromagnetic
interference
•
Replace the drive controller
O C F
Over Current
•
Incorrect parameter settings in the
Set- and drC- menus
•
Acceleration too rapid
•
Drive controller and/or motor
undersized for load
•
Mechanical blockage
•
Clear the mechanical blockage
S C F
Motor Short Circuit
•
Short circuit or grounding at the drive
controller output
•
Significant ground leakage current at
the drive controller output if several
motors are connected in parallel
•
Check the cable connecting the drive controller
to the motor and check the motor insulation
•
Reduce the switching frequency
S O F
Over Speed
•
Instability
•
Overhauling load
•
Check the size of the motor, drive controller,
and load
F n F
Aut-Tuning Fault
•
Motor or motor power not suitable for
the drive controller
•
Motor not connected to the drive
controller
•
Check the presence of the motor during auto-
tuning
•
If a downstream contractor is being used, close
it during auto-tuning
E P F
External Fault
•
User defined
•
User defined
L F F
•
Loss of the 4-20 mA reference on
input A13
•
Check the connection on input A13
•
Loss of 4-20 mA follower
O b F
Over voltage during
deceleration
•
Braking too rapidly
•
Overhauling load
•
Increase the deceleration time
O H F
Drive Overload
•
Drive controller or ambient
temperature is too high
•
Continuous motor current load is too
high
•
Check the motor load, the drive controller
ventilation, and the environment. Wait for the
drive controller to cool before restarting
O L F
Motor Overload
•
Thermal trip due to prolonged motor
overload
•
Motor power rating too low for the
application
•
Allow the motor to cool before restarting
O P F
•
Loss of phase at drive controller
•
Check the connections from the drive controller
