Error Messages - DEMAG DC-Com 1 Operating Instructions Manual

9.5

Error messages

Fig. 84 Chain hoist is blocked.
Fig. 85 Chain hoist is blocked.
Fig. 86 Hoist unit: Overspeed or load cannot be
held. Lowering with load is switched off.
Fig. 87 Chain hoist is blocked.
Fig. 88 Chain hoist is blocked.
Fig. 89 Hoist unit: Motor runs in wrong direction.
Chain hoist is blocked.
Fig. 90 Lowering is switched off.
Fig. 91 Chain hoist is blocked.
Possible cause
Hardware error of control system.
Monitoring electronics defective.
Tab. 80
Possible cause
Drive blocked.
Speed measurement failed.
Tab. 81
Possible cause
Lowering speed too high.
Tab. 82
Possible cause
Hardware error of control system.
Monitoring electronics defective.
Tab. 83
Possible cause
Hardware error of control system.
Monitoring electronics defective.
Tab. 84
Possible cause
Direction cannot be switched.
Tab. 85
Possible cause
Brake defective or slipping clutch set in‐
correctly.
Tab. 86
Possible cause
Emergency-stop circuit of control system
defective
Tab. 87
Remarks
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
Remarks
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
Remarks
Reduce load to the permissible load capacity.
Check mains connection and fuse link; check
connection cable for interruption; check mains
connector in the service enclosure.
Remarks
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
Remarks
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
Remarks
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
Remarks
Check brake and slipping clutch.
If there is no fault, replace electronics.
Remarks
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
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