Prowinch PWH, User Manual

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42
Troubleshoooting Troubleshoooting
43
Version 1.0 | 43 | | 42 |
Version 1.0
Condition Reason Action Cause Correction
No operation
Break
Check cable, repair
if wire break
Vibration, drop
Avoid excessive bumping
in usage
Leading wire
damaged in assembly
Change motor coil
Check connector,
repair if wire break Connector not
properly set
Press by appropriate tool
Wiring error
Refer to wiring
diagram, ensure
properly connected
Wiring error
Refer to wiring diagram, en-
sure properly connected
Connector screws
loose (overheating)
Fastening
Improper fastening Ensure effective fastening
Vibration, drop
Avoid excessive bumping
in usage
Connector, insert terminal
improper combination
Proper combination
Bad combination
during assembly Ensure combination is
effective
Condition Reason Action Cause Correction
No operation
(Contractor)
Coil burning, break
Measure coil resis-
tance 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 trans-
former if wire
Vibration, drop
Avoid excessive bumping
in usage
Inside Wiring
Transformer
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 in-
finite.
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
Condition
Reason Action Cause Correction
No operation
(Contactor)
Contact fused
Operate limit switch.
Check continuity of
contactor, replace
if result is negative
Limit switch overuse Avoid overuse of switch
Wire break
Inspect cable, change
if wire breakage or
replace limit
switch
Vibration, drop
Avoid excessive bumping
in usage
Movable parts
rusting
Check movable parts
such as limit lever.
Remove if rusty or
replace if adhesive
Set in Up/Down limit
for long time
Do not set in Up/Down limit
Contactor & Electric Reply
Limit Switch