Error Messages - DEMAG DC-Com 1 Operating Instructions Manual

9.5

Error messages

Fig. 74 Display examples
Item Display Malfunction/event
1 E.1. Chain hoist is blocked.
2 E.2. Chain hoist is blocked.
3 E.3. Hoist unit: overspeed or
load cannot be held. Low‐
ering with load is switched
off.
5 E.5. Chain hoist is blocked.
6 E.6. Chain hoist is blocked.
7 E.7. Hoist unit: Motor runs in
wrong direction. Chain
hoist is blocked.
8 E.8. Lifting is switched off.
9 E.9.9. Chain hoist is blocked.
Tab. 70
Hardware faults are displayed with two characters by software version 1.60 and higher.
Possible cause
Hardware error of control system.
Defective electronic monitoring.
Defective "On/off" contactor
Contact wear
Drive blocked.
Speed measurement failure.
Lowering speed too high.
Hardware error of control system.
Defective electronic monitoring.
Hardware error of control system.
Defective electronic monitoring.
Direction of hoist unit cannot be switched.
Brake defective or slipping clutch incorrectly adjus‐
ted.
Emergency-stop circuit of control system defective. Check error message by actuating and unlocking the emer‐
Remark
Check error message by actuating and unlocking the emer‐
gency stop.
Then actuate Lowering. If necessary, remove suspended
load.
Replace hoist control system.
Replace contactor,  "Replacing the contactor on the con‐
trol board", Page 92
Check error message by actuating and unlocking the emer‐
gency stop.
Then actuate Lowering. If necessary, remove suspended
load.
Replace hoist control system.
Reduce load to the permissible load capacity. Check mains
connection and fuse link; check connection cable for inter‐
ruption; check mains connector in the service enclosure.
Check error message by actuating and unlocking the emer‐
gency stop.
Then actuate Lowering. If necessary, remove suspended
load.
Replace hoist control system.
Check error message by actuating and unlocking the emer‐
gency stop.
Then actuate Lowering. If necessary, remove suspended
load.
Replace hoist control system.
Check error message by actuating and unlocking the emer‐
gency stop.
Then actuate Lowering. If necessary, remove suspended
load.
Replace hoist control system.
Check brake and slipping clutch.
If there is no fault, replace electronics.
gency stop.
Then actuate Lowering. If necessary, remove suspended
load.
Replace hoist control system.
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