8
Service
Failures of the mechanical drive
Operating Instructions – MOVIMOT
®
advanced
132
8 Service
NOTICE
Improper work on the drive units can lead to damage.
Possible damage to property.
• Note that only qualified personnel is permitted to repair drives from
SEW‑EURODRIVE.
• Consult SEW‑EURODRIVE Service department.
8.1 Failures of the mechanical drive
Observe the information in the "CM3C Synchronous Servomotors" operating instruc-
tions.
Also observe the information in the "DR..71-315, DRN63-315, DR2..56-80 AC Motors"
operating instructions.
8.1.1 Motor malfunctions
Fault Possible cause Measure
Motor heats up ex-
cessively and trips
with a fault
Overload Measure power, use larger motor
or reduce load if necessary,
check travel profile
Ambient temperature too
high
Observe permitted temperature
range
Insufficient cooling Clean the drive
Running noise on
motor
Bearing damage
• Contact SEW‑EURODRIVE
Service
• Replace the motor
Vibration of rotating parts Rectify cause, possible imbal-
ance
Oil leaks in the con-
nection box or at the
motor/flange gasket
(only with gearmo-
tors)
Internal seal defective
• Contact SEW‑EURODRIVE
• Have seal changed by
SEW‑EURODRIVE Service or
a qualified technician trained
by SEW‑EURODRIVE
25891936/EN – 05/2020
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