Fault Remedy - BENSHAW RSi GX Series Hardware Manual

8 - Troubleshooting & Maintenance
8.2

Fault Remedy

Keypad
Display
OCt
G F t
I O L
O L t
O H t
POt
FAn
Out
Lut
146
Protective Function
Caution: When an overcurrent fault occurs, operation must be started after the
cause is removed to avoid damage to IGBT inside the drive.
Accel/Decel time is too short
2
compared to the GD of the load.
Load is greater than the drive
rating. Drive output is issued when
the motor is free running.
Output short circuit or ground fault
has occurred.
Mechanical brake of the motor is
operating too fast.
Ground fault has occurred at the
output wiring of the drive.
The insulation of the motor is
damaged due to heat.
Load is greater than the drive
rating.
Torque boost scale is set too large.
Cooling system has faults.
An old cooling fan is not replaced
with a new one.
Ambient temperature is too high.
Faulty contact of magnetic switch
at output.
Faulty output wiring.
A foreign substance is clogged in a
ventilating slot.
Drive has been in use without
changing cooling fan.
Decel time is too short compared
2
to the GD of the load.
Regenerative load is at the drive
output.
Line voltage is too high.
Line voltage is low.
Load larger than line capacity is
connected to line (ex: welding
machine, motor with high starting
current connected to the
commercial line).
Faulty magnetic switch at the input
side of the drive.
Description
Increase the Accel/Decel time.
•
Replace the drive with appropriate
•
capacity.
Resume operation after stopping the
•
motor or use H22 (Speed search).
Check output wiring.
•
Check the mechanical brake.
•
Check the wiring of the output terminal.
•
Replace the motor.
•
Upgrade the capacity of motor and drive
•
or reduce the load weight.
Reduce torque boost scale.
•
Check for alien substances clogged in the
•
heat sink.
Replace the old cooling fan with a new
•
one.
Keep ambient temperature under 50°C.
•
Make connection of magnetic switch at
•
output of the drive securely.
Check output wiring.
•
Check the ventilating slot and remove the
•
clogged substances.
Replace the cooling fan.
•
Increase the Decel time.
•
Use Dynamic Brake Unit.
•
Check whether line voltage exceeds its
•
rating.
Check whether line voltage is below its
•
rating.
Check the incoming AC line. Adjust the
•
line capacity corresponding to the load.
Change a magnetic switch.
•
Fault Remedy