Troubleshooting; Possible Cause - Sumitomo PARAMAX 9000 Betriebsanleitung

11. Troubleshooting

In the event of anomalies, appropriate action as set out in the operating instructions must be taken.
Do not operate the unit until the problem has been solved. If a repair is not possible, contact Sumitomo.
Malfunction
The motor runs without a load.
Motor runs in the wrong direction
Fuse burnt out
Excessive temperature rise
Oil leaks from the input/output
shaft sections.
Oil
leakage
Oil leaks from the abutting
surface of the housing
Odd noises
Excessively
strong vibrations
Odd motor noise
Cut off because of
excessive current
Excessive earth current
Direct current too high
Cut off because of excessive
regenerative voltage
Thermo contact triggered
72
PX_DEU_ENG_06_2009_999345

Possible cause

Power failure.
Defective electric circuit.
Fuse burnt out.
Safety clutch tripped.
Load locking.
Loose connection.
Connection to stator coil cut off.
Bearing damage.
3-phase is functioning as
single-phase.
Insufficient switch capacity.
Switch gets hot
Overload.
Fuse overloaded.
Fuse burnt out
Overload.
Voltage drop.
Overload.
Motor overheated
Short-circuited motor stator coil.
and running
The key is missing.
too slowly
The bearing is burnt out.
Fuse switch wrongly aligned
Connection error.
The outlet wire is short-circuited.
Loose connection between motor
and starter.
Overload.
Voltage drop or voltage rise.
Bearing burnt out.
The ambient temperature is high.
Damage due to overload applied
to gears, bearings, etc.
Damaged oil seal.
Scratches or abrasions on the
sealing lip.
Loose anchor bolt.
Gearbox, shaft or bearing damage
Housing distorted because of
uneven support
Resonance as a result of the support
surface not being rigid enough
Not properly aligned with the
connection machine
The connection machine transmits
vibrations to the Paramax gearbox
Foreign bodies have got in
Bearing damage
Sudden acceleration/ braking
Sudden change in load
Earthing on the output side
Short circuit on the output side
Sudden braking
Overload
E-Mail: marktind@sce-cyclo.com
www.sumitomodriveeurope.com Phone +49 (0) 8136 66 0
PARAMAX 9000 Operation Manual
Correction
Contact the electricity supply company.
Check the circuit.
Replace the fuse.
Rectify malfunction and reset device.
Check the load and safety device.
Adjust connection.
Contact authorised service agent.
Contact authorised service agent.
Check the power supply with a voltmeter.
Check the motor, coil in the transformer,
contactor, fuse, etc. and repair or replace
them.
Replace switch with a specified one.
Reduce the load to the specified one.
Use appropriate fuse.
Reduce the load to the specified one.
Contact the electricity supply company.
Reduce the load to the specified one.
Contact authorised service agent.
Install a key.
Contact authorised service agent.
Check fuse switch.
Change the connection.
Contact authorised service agent.
Correct connection.
Reduce the load to the specified value.
Contact the electricity supply company
Contact authorised service agent.
Improve the ventilation method.
Contact authorised service agent.
Change the oil seal.
Contact authorised service agent.
Tighten the fitting screws to their
proper torque.
Contact an authorised service agent
Level support surface or use spacer
blocks
Make the support surface more rigid
Align the centre of the shaft
Operate without the connection machine
to check gearbox
Remove foreign bodies
Replace bearing
Increase acceleration/ braking time
Reduce load
Remove earthing
Check cable, remedy malfunction
Increase braking time,
reduce braking frequency
Reduce load to specified values
Cyclostraße 92
85229 Markt Indersdorf