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14. Troubleshooting
If the geared motor has a problem, determine the cause and solve the problem while referring to the table below:
Problem
Grease leak from oil seal Damaged oil seal.
Oil leak from mating face
of gear case etc.
Abnormal noise of bearing Dust or foreign material is in the bearing.
*Other problems
*Non-rotating output shaft
Extreme rise of
temperature
Abnormal noise of motor
Brake malfunction
For the items marked with an asterisk "*", please contact our system service department.
Cause
(1)Loose clamp bolt
(2) Damaged O-ring
(1)
Resonance is caused because the motor
installation base is not rigid.
The
vibration
of
the
(2)
transferred to the motor to cause the
problem.
(3)
The eccentricity between the machine and
the motor is too large.
(1) Power source connection error.
(2) Damaged gear or shaft.
(1) Overloaded operation.
(2) The starting frequency is too high.
(3) The ambient temperature is 40 or above.
(1) Foreign material.
(2) Damaged bearing.
(3) Brake gap adjustment error.
(4) Abraded brake lining.
(5) Seized brake coil.
(6) Broken rectifier.
(7) Defective centrifugal (governor) switch.
(1) Foreign material on brake lining.
(2) Abraded brake lining.
(3) Unevenly adjusted brake gap.
(4) Overload.
(5) The manually released brake is not reset.
*Replace the oil seal..
(1) Tighten the clamp bolt
(2) Replace the O-ring
*Replace the bearing.
(1) Increase the rigidity of the motor installation base.
machine
is
(2) Increase the rigidity of the motor installation base
(3) Readjust the eccentricity to 0.05 mm or less.
(1) Check the power source.
(2) Contact our system service department.
(1) Reduce the load by lowering the current to the rated
current value.
(2) Lower the frequency.
(3) Ventilate the room to reduce the ambient temperature.
(1) Remove the foreign material.
(2) Contact our system service department.
(3) Adjust the brake gap.
(4) Adjust the brake gap, or replace the brake lining.
(5) Replace the entire brake unit.
(6) Replace the rectifier.
(7) Contact our system service department.
(1) Remove the foreign material.
(2) Adjust the brake gap, or replace the brake lining.
(3) Adjust the brake gap.
(4) Reduce the load by lowering the current to the rated
current value.
(5) Reset the brake to the initial condition.
－ 16 －
Remedy
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