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9. TROUBLESHOOTING
Phenomena Checkpoint Estimated cause Action
An abnormal
value is displayed
on the monitor
value on MR
Configurator.
Check that the model selection is
set correctly.
Check with the "System settings"
command on the "Setup" menu.
The other model, which differs from
the one connected on the model
selection, is selected.
Set the model settings correctly.
The
electromagnetic
brake does not
work for the servo
motor with the
electromagnetic
brake.
Remove the servo motor from the
machine and remove all the wiring.
Check that the servo motor shaft
can be turned over by the hand.
(If the shaft can be turned over,
the electromagnetic brake is
malfunction.)
The electromagnetic brake reached
the end of its usefulness or
malfunctioned.
Refer to Servo motor Instruction
Manual (Vol.2) for details of the life of
the electromagnetic brake.
Replace the servo motor.
The servo motor
coasting amount
is enlarged.
Check that a load is not increased. If a load is increased, the value
exceeded the permissible load to
motor inertia moment ratio of the
dynamic brake. (Refer to section
11.3)
1. Reduce the load.
2. Replace the servo amplifier.
For the servo motor with an
electromagnetic brake
1. Check that the external relay,
which is connected to the
electromagnetic brake interlock
(MBR), operates properly.
2. Check that the electromagnetic
brake is not malfunction.
1. An external relay malfunctions.
2. The electromagnetic brake
interlock (MBR) wiring is incorrect.
3. The electromagnetic brake reached
the end of its usefulness or
malfunctioned.
1. Replace the external relay.
2. Review the wiring.
3. Replace the servo motor.