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0.0Hz 0.000kW 0.00A
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Earth Fault [A14]
Auto Remote Trip
1(1)
Illustration 76: Alarm Example
9.4.2 WARNING 1, 10 Volts Low
Cause
The control card voltage is less than 10 V from terminal 50. Remove some of the load from terminal 50, as the 10 V supply is overloa-
ded. Maximum 15 mA or minimum 590 Ω.
A short circuit in a connected potentiometer or incorrect wiring of the potentiometer can cause this condition.
Troubleshooting
Remove the wiring from terminal 50.
If the warning clears, the problem is with the wiring.
If the warning does not clear, replace the control card.
9.4.3 WARNING/ALARM 2, Live Zero Error
Cause
This warning or alarm only appears if programmed in
parameter 6-01 Live Zero Timeout Function
. The signal on 1 of the analog inputs
is less than 50% of the minimum value programmed for that input. Broken wiring or a faulty device sending the signal can cause
this condition.
Troubleshooting
Check connections on all analog mains terminals.
Control card terminals 53 and 54 for signals, terminal 55 common.
VLT® General Purpose I/O MCB 101 terminals 11 and 12 for signals, terminal 10 common.
VLT® Analog I/O Option MCB 109 terminals 1, 3, and 5 for signals, terminals 2, 4, and 6 common.
Check that the drive programming and switch settings match the analog signal type.
Perform an input terminal signal test.
9.4.4 WARNING/ALARM 3, No Motor
Cause
No motor is connected to the output of the drive.
9.4.5 WARNING/ALARM 4, Mains Phase Loss
Cause
A phase is missing on the supply side, or the mains voltage imbalance is too high. This message also appears for a fault in the input
rectifier. Options are programmed in
parameter 14-12 Function at Mains Imbalance
.
Troubleshooting
Check the supply voltage and supply currents to the drive.
9.4.6 WARNING 5, DC Link Voltage High
Cause
The DC-link voltage (DC) is higher than the high-voltage warning limit. The limit depends on the drive voltage rating. The unit is still
active.
AQ262139143212en-000301 / 130R0879
142 | Danfoss A/S © 2021.10
Maintenance, Diagnostics, and
Troubleshooting
VLT® AutomationDrive FC 302
Operating Guide
Содержание D9h
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