Prowinch PWJTHF, User Manual

Page: 43 / 51

Version 1.0
43
Troubleshooting
43
Condition Reason Action Cause Correction
No operation
(contractor)
Coil burning, break
Measure coil resistance value;
Change transformer if value infinite
Excessive voltage Operate under rated voltage
Avoid over-operation
Excessive current caused by
contactor
Refer to contactor items
Vibration, drop
Avoid excessive bumping in
usage
Wire break
Check leading wire, repair or
change transformer if wire
Vibration, drop
Avoid excessive bumping in
usage
Transformer
Contactor & Electric Reply
Condition Reason Action Cause Correction
Non-stop activation
Junction welding
burn out
Change contactor if continuous
welding or burn out. For electric
reply, visual inspection of junction
Do not over-operate
Excessive voltage (Excessive
current)
Operate under rated voltage
Excessive current due to
overload
Operation under rated voltage
No operation
Coil burning
Measure coil resistance value.
Change coil if value infinite.
Avoid over-operation
Excessive voltage Operate under rated voltage
Vibration due to low voltage
(Starting current added
continuous)
Operate under rated voltage
Replace contactor if action is not
smooth. For electric reply, visual
inspection for part breakage
Vibration, drop
Avoid excessive bumping in
usage
V.07.22 [LA]