Fault
GF - Ground fault
Cause
Overheating caused damage to the motor or the motor insulation is not
satisfactory.
Remedy
Measure the motor insulation resistance and replace the motor if there is
electrical conduction or unserviceable insulation.
Cause
The motor main circuit cable is contacting ground to make a short circuit.
Remedy
Examine the motor main circuit cable for damage and repair short circuits.
Measure the resistance between the motor main circuit cable and the ground
terminal. If there is electrical conduction, replace the cable.
Cause
There is a problem with the drive hardware.
Remedy
Contact us.
Fault
LF - Output phase loss
Cause
The motor main circuit cable is disconnected.
Remedy
Connect motor main circuit cable wiring. Correct wiring errors in the main circuit
drive input power.
Cause
The screws on the drive output terminals are loose.
Remedy
Tighten the terminal screws to the correct tightening torque.
Cause
The output transistor in the drive is damaged.
Remedy
Contact us.
Fault
LF2 - Output current imbalance
Cause
Phase loss occurred in the wiring on the output side of the drive.
Remedy
Examine for wiring errors or disconnected wires on the output side of the drive
and repair problems.
Cause
The output terminal screws of the drive are loose.
Remedy
Tighten the terminal screws to the correct tightening torque.
Cause
The drive output circuit is broken.
Remedy
Re-energise the drive. Contact us.
Fault
PF - Input phase loss
Cause
There is a phase loss in the drive input power.
Remedy
Correct errors with the wiring for main circuit drive input power.
Cause
There is loose wiring in the drive input power terminals.
Remedy
Tighten the terminal screws to the correct tightening torque.
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Fault finding