List Of Warnings And Alarms - Danfoss VLT AutomationDrive FC 301 Operating Instructions Manual

Maintenance, Diagnostics, a...
Warning and alarm displays
•
A warning is showed in the LCP along with the
warning number.
•
An alarm flashes along with the alarm number.
Illustration 7.2 Alarm Example
In addition to the text and alarm code in the LCP, there are
3 status indicator lights.
7 7
On
Warn.
Alarm
Warning
Alarm
Trip-Lock
Illustration 7.3 Status Indicator Lights

7.4 List of Warnings and Alarms

The following warning/alarm information defines each
warning/alarm condition, provides the probable cause for
the condition, and details a remedy or troubleshooting
procedure.
WARNING 1, 10 Volts low
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 overloaded. 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.
40
Status
0.0Hz 0.000kW
0.0Hz
0
Earth Fault [A14]
Auto Remote Trip
OK
Warning indicator light Alarm indicator light
On Off
Off On (Flashing)
On On (Flashing)
Danfoss A/S © 07/2015 All rights reserved.
®
VLT AutomationDrive FC 301/302
WARNING/ALARM 2, Live zero error
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.
1(1)
0.00A
Troubleshooting
•
•
•
WARNING/ALARM 3, No motor
No motor is connected to the output of the frequency
converter.
WARNING/ALARM 4, Mains phase loss
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 on the frequency converter.
Options are programmed in parameter 14-12 Function at
Mains Imbalance.
Troubleshooting
•
WARNING 5, DC link voltage high
The DC-link voltage (DC) is higher than the high-voltage
warning limit. The limit depends on the frequency
converter voltage rating. The unit is still active.
WARNING 6, DC link voltage low
The DC-link voltage (DC) is lower than the low-voltage
warning limit. The limit depends on the frequency
converter voltage rating. The unit is still active.
WARNING/ALARM 7, DC overvoltage
If the DC-link voltage exceeds the limit, the frequency
converter trips after a certain time.
Troubleshooting
•
•
•
•
Check the connections on all the 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 frequency converter programming
and switch settings match the analog signal type.
Perform an input terminal signal test.
Check the supply voltage and supply currents to
the frequency converter.
Connect a brake resistor.
Extend the ramp time.
Change the ramp type.
Activate the functions in parameter 2-10 Brake
Function.
MG33AQ02