VLT® 5000 Crane
Alarm/warning limits:
VLT 5000 Crane
3 x 400-500 VAC
Undervoltage
402 VDC
Voltage warning low
423 VDC
Voltage warning high
801/840 VDC (w/o brake - w/brake)
Overvoltage
855 VDC
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Warnings and Alarms, 1-6
Warn-
ing/Alarm
number
Display
Description
How to Handle
1 (w)
10 Volt Low
The 10 Volts voltage from terminal 50 on the control
card is below 10 Volts
Remove some of the load from terminal 50,
as the 10 Volts supply is overloaded. Max.
17 mA/min. 590
2
Live Zero Error
The current signal on terminal 58 or the voltage
signal on terminal 53 is less than 50% of the value
set in parameter 353/309
Check the wires to terminals 53 and 58
3 (a)
No Motor
The motor check function (see parameter 122)
indicates that no motor has been connected to the
output of the frequency converter
Check the motor connection
4
Mains Phase
Loss
Phase missing on the supply side or mains
imbalance is too high
Check the supply voltage to the frequency
converter
5 (w)
DC Link Voltage
High
The intermediate circuit voltage (DC) is higher than
the overvoltage limit of the control system. The
frequency converter is still active
Check brake resistor connection
6 (w)
DC Link Voltage
Low
The intermediate circuit voltage is below the
undervoltage limit of the control system. The
frequency converter is still active
Check the supply voltage to the frequency
converter
MG.50.N4.02 - VLT is a registered Danfoss trademark
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