Common Fault And Troubleshooting - HANGCHA Mini Range CDD12-A2MJ-SZ Operation And Maintenance Manual

1.5.5 Common fault and troubleshooting

Fault
Brake does not
work
Long brake time
Slipping
High temperature
Large noise
Probable cause
Power is obstructed
Too low exciting voltage
Improper air gap
Stator coil breaks
Oil dirt mixed in
Switch installed to AC circuit
Improper air gap
Oil dirt mixed in
Unstable operation in previous use
Oil dirt mixed in
Large load
Large load change
Too high exciting voltage
Clutch or motor interfere to the brake
High environment temperature
High operating frequency
Over large load
Product service environment needs
silence
Impurity mixed in.
Bad mounting
Large rotational inertia or dynamic
unbalance value
Connect
Check voltage and adjust.
Adjust air gap
Replace stator
Clean oil dirt
Install the switch to the DC circuit
after rectifying
Adjust air gap
Clean oil dirt
Breaking-in for a while
Clean oil dirt
Reduce load or replace large
specification
Adjust load peak or large the
specification
Check voltage and adjust.
Check control circuit, eliminate
interference
Set ventilation
Adjust to proper frequency
Reduce load
Silence design
Clear away the impurity
Replace mounting surface or shaft
Reduce
dynamic unbalance value.
61
Corrective action
rotational inertia or