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8-14
8-3 Troubleshooting
8
Troubleshooting
The Servomotor
is overheating.
The ambient temperature
is too high.
Check that the ambient tempera-
ture around the Servomotor is be-
low 40
°
C.
Lower the ambient tempera-
ture to 40
°
C or less. (Use a
cooler or fan.)
Ventilation is obstructed.
Check to see whether anything is
blocking ventilation.
Improve ventilation.
The Servomotor is
overloaded.
Try rotating the Servomotor without
a load. (Disconnect it from the me-
chanical system.)
•
Reduce the load.
•
Replace the Servomotor
and Servo Drive with a Ser-
vomotor and Servo Drive
with higher capacities.
The Servomotor is rotating
with vibration.
The holding
brake is ineffec-
tive.
Power is supplied to the
holding brake.
Check whether power is supplied to
the holding brake.
Configure a circuit that cuts
power to the holding brake
when the motor stops and
the load is held by the hold-
ing brake.
The Servomotor
doesn’t stop or is
hard to stop even
if the RUN
Command Input
(RUN) is turned
OFF while the
Servomotor is ro-
tating.
The load inertia is too
large.
Check the following:
•
Is the load too large?
•
Is the Servomotor speed too
high?
Re-evaluate the load condi-
tions and replace the Servo-
motor/Servo Drive with an
appropriate model if neces-
sary.
The stop circuit failed.
---
Replace the Servo Drive.
Symptom
Probable cause
Items to check
Countermeasures