DEMAG DC-Com 5 User Manual

9.5 Error messages
Fig. 84 Chain hoist is blocked.
Possible cause
Remarks
Hardware error of control system.
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Monitoring electronics defective. Replace hoist control system.
Tab. 80
Fig. 85 Chain hoist is blocked.
Possible cause
Remarks
Drive blocked.
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Speed measurement failed. Replace hoist control system.
Tab. 81
Fig. 86 Hoist unit: Overspeed or load cannot be
held. Lowering with load is switched off.
Possible cause
Remarks
Lowering speed too high.
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.
Tab. 82
Fig. 87 Chain hoist is blocked.
Possible cause
Remarks
Hardware error of control system.
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Monitoring electronics defective. Replace hoist control system.
Tab. 83
Fig. 88 Chain hoist is blocked.
Possible cause
Remarks
Hardware error of control system.
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Monitoring electronics defective. Replace hoist control system.
Tab. 84
Fig. 89 Hoist unit: Motor runs in wrong direction.
Chain hoist is blocked.
Possible cause
Remarks
Direction cannot be switched.
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
Tab. 85
Fig. 90 Lowering is switched off.
Possible cause
Remarks
Brake defective or slipping clutch set in‐
correctly.
Check brake and slipping clutch.
If there is no fault, replace electronics.
Tab. 86
Fig. 91 Chain hoist is blocked.
Possible cause
Remarks
Emergency-stop circuit of control system
defective
Check error message by actuating and unlocking
the emergency stop.
Then actuate Lowering.
If necessary, remove suspended load.
Replace hoist control system.
Tab. 87
21480244/181209
105

DEMAG DC-Com 5 Specifications

General

Brand	DEMAG
Model	DC-Com 5
Category	Chain Hoists
Language	English