SEW DRC2 - Service; Malfunctions of the Mechanical DRC Drive

Operating Instructions – Electronic Motor DRC.-..-SNI
143
10
Malfunctions of the mechanical DRC drive
Service
10 Service
10.1 Malfunctions of the mechanical DRC drive
10.1.1 Malfunctions of the DRC motor
10.1.2 Brake malfunctions
NOTICE
Improper handling of DRC drive units may lead to damage.
Possible damage to property
• Note that only qualified personnel is permitted to repair drives from SEW-
EURODRIVE.
• Consult the SEW-EURODRIVE Service department.
Malfunction Possible cause Remedy
Motor heats up excessively
and trips an error
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 • Consult SEW-EURODRIVE Service
• Replace motor
Vibration of rotating parts Rectify cause, possible imbalance
Malfunction Possible cause Remedy
Brake does not release Electronics cover faulty • Consult SEW-EURODRIVE Service
• Replace electronics cover
Max. permitted working air gap
exceeded because brake lin-
ing worn down
• Consult SEW-EURODRIVE
• Have brake lining replaced by SEW-
EURODRIVE Service or a qualified
technician trained by SEW-
EURODRIVE
Brake defective • Consult SEW-EURODRIVE
• Have brake replaced by SEW-
EURODRIVE Service or a qualified
technician trained by SEW-
EURODRIVE
Motor does not brake Brake lining worn • Consult SEW-EURODRIVE
• Have brake lining replaced by SEW-
EURODRIVE Service or a qualified
technician trained by SEW-
EURODRIVE
Incorrect braking torque. • Consult SEW-EURODRIVE
• Have braking torque changed by
SEW-EURODRIVE Service or a
qualified technician trained by SEW-
EURODRIVE.