VLT® 5000 Crane
Appendix
Symptom
How to handle
6. VLT 5000 Crane trips,
"Overvoltage" is displayed and
motor does not brake
Check if the green LED "READY" on the control card is ready.
If yes, check if the yellow and red LEDs "braking" and "overload" on
the control card are active during braking period.
If yes, check if the brake resistor and its connection are OK.
If yes, call Danfoss for assistance.
If the "READY" LED is NOT active check if the connections to the
brake control card are OK, then follow the steps from checking the
"braking" and "overload" LEDs and forward.
7. Fault at start (Warning "Brake
fault 2")
Check if the system brake is correctly connected.
If no, correct the system brake connection.
If yes, check if the encoder is correctly connected.
If this is not the case, correct the encoder connection, otherwise
call Danfoss for assistance.
MG.50.N4.02 - VLT is a registered Danfoss trademark
93
