BENSHAW RSi GX Series, Руководство по оборудованию

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Fault Remedy
8.2 Fault Remedy
146
8 - Troubleshooting & Maintenance
Keypad
Display
Protective Function Description
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
compared to the GD
2
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.
•
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.
Ground fault has occurred at the
output wiring of the drive.
The insulation of the motor is
damaged due to heat.
•
Check the wiring of the output terminal.
•
Replace the motor.
Load is greater than the drive
rating.
Torque boost scale is set too large.
•
Upgrade the capacity of motor and drive
or reduce the load weight.
•
Reduce torque boost scale.
Cooling system has faults.
An old cooling fan is not replaced
with a new one.
Ambient temperature is too high.
•
Check for alien substances clogged in the
heat sink.
•
Replace the old cooling fan with a new
one.
•
Keep ambient temperature under 50
°
C.
Faulty contact of magnetic switch
at output.
Faulty output wiring.
•
Make connection of magnetic switch at
output of the drive securely.
•
Check output wiring.
A foreign substance is clogged in a
ventilating slot.
Drive has been in use without
changing cooling fan.
•
Check the ventilating slot and remove the
clogged substances.
•
Replace the cooling fan.
Decel time is too short compared
to the GD
2
of the load.
Regenerative load is at the drive
output.
Line voltage is too high.
•
Increase the Decel time.
•
Use Dynamic Brake Unit.
•
Check whether line voltage exceeds its
rating.
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.
•
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.
OCt
GFt
I OL
OLt
OHt
POt
FAn
Out
Lut