List Of Warnings And Alarms - Danfoss VLT FC 102 Instruction Manual

Diagnostics and Troubleshoo...
Warning and Alarm Displays
•
A warning is displayed in the LCP along with the
warning number.
•
An alarm flashes along with the alarm number.
Figure 7.2 Alarm Display Example
7 7
In addition to the text and alarm code on the LCP of the
adjustable frequency drive, there are three status indicator
lights.
On
Warn.
Alarm
Hand
on
Figure 7.3 Status Indicator Lights
Warning LED
Warning On
Alarm Off
Trip Lock On
Table 7.5 Status Indicator Lights Explanations
42
®
VLT HVAC Drive Instruction Manual
Status
0.0Hz 0.000kW
0.0Hz
0
Earth Fault [A14]
Auto Remote Trip
OK
Auto
Off Reset
on
Alarm LED
Off
On (Flashing)
On (Flashing)
MG11AJ22 - Rev. 2013-09-13

7.3 List of Warnings and Alarms

The warning/alarm information below defines each warning/
alarm condition, provides the probable cause for the
condition, and details a remedy or troubleshooting
1(1)
0.00A
procedure.
WARNING 1, 10 Volts low
The control card voltage is below 10 V from terminal 50.
Remove some of the load from terminal 50, as the 10 V
supply is overloaded. Max. 15 mA or minimum 590 Ω.
A short circuit in a connected potentiometer or improper
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.
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 faulty device
sending the signal can cause this condition.
Troubleshooting
Check 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 Input Terminal Signal Test.
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the line voltage
imbalance is too high. This message also appears for a fault
in the input rectifier on the adjustable frequency drive.
Options are programmed at 14-12 Function at Mains
Imbalance.
Troubleshooting
Check the supply voltage and supply currents to
the adjustable frequency drive.