Chapter 9 Troubleshooting
Whether the fan is
running when running
The cable of the external
braking resistor is in poor
connection, becomes
loose or breaks.
Check the braking
resistor wiring according
to the correct wiring
diagrams.
Rewire according to the correct
wiring diagrams.
The jumper across
terminals P and PB is
disconnected when the
internal braking
resistor is used.
Confirm the power
terminal jumper wiring
Properly connect the jumper.
The capacity of the servo
drive or the braking
resistor is insufficient.
Calculate the maximum
braking energy
Improve braking resistor capacity or
servo unit capacity, increase
acceleration and deceleration time.
The load inertia is too
large.
Improve the drive, motor, resistor
capacity.
There is interphase short
circuit or grounding short
circuit in output three
phases.
Check cable and output
motor insulation.
Replace the cable or motor.
Instantaneous
over-current of the drive
See the over-current
solutions
See the over-current solutions
The auxiliary power
supply is damaged; the
drive voltage is
insufficient.
Inverter module bridging
conduction
Er.011: Servo
drive overload
Er.012: Motor
Wiring of the motor and
encoder is incorrect.
Check the wiring
according to the
correct wiring diagram
Rewire according to the correct
wiring diagram, replace the cable.
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