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

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

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 <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 LED Alarm LED
On Off
Off On (Flashing)
On On (Flashing)
Danfoss A/S © Rev. 07/2014 All rights reserved.
Operating Instructions
WARNING/ALARM 2, Live zero error
This warning or alarm only appears if programmed in
6-01 Live Zero Timeout Function. The signal on one 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 has been 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 14-12 Function at Mains
Imbalance.
Troubleshooting
•
WARNING 5, DC link voltage high
The intermediate circuit voltage (DC) is higher than the
high-voltage warning limit. The limit is dependent on the
frequency converter voltage rating. The unit is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is lower than the low-
voltage warning limit. The limit is dependent on the
frequency converter voltage rating. The unit is still active.
WARNING/ALARM 7, DC overvoltage
If the intermediate circuit voltage exceeds the limit, the
frequency converter trips after a time.
Troubleshooting
•
•
•
•
•
•
Check the connections on all the analog input
terminals.
- Control card terminals 53 and 54 for
signals, terminal 55 common.
- MCB 101 terminals 11 and 12 for signals,
terminal 10 common.
- MCB 109 terminals 1, 3, 5 for signals,
terminals 2, 4, 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 2-10 Brake Function.
Increase 14-26 Trip Delay at Inverter Fault.
If the alarm/warning occurs during a power sag,
use kinetic back-up (14-10 Mains Failure).
MG33AP02