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

Maintenance, Diagnostics an...
Resetting the adjustable frequency drive after trip/trip
lock
A trip can be reset in any of four ways:
•
Press [Reset] on the LCP.
•
Digital reset input command.
•
Serial communication reset input command.
•
Auto reset.
Trip lock
Input power is cycled. The motor coasts to a stop. The
adjustable frequency drive continues to monitor the
adjustable frequency drive status. Remove input power to
the adjustable frequency drive, correct the cause of the
fault, and reset the adjustable frequency drive.
Warning and alarm displays
•
A warning is displayed in the LCP along with the
warning number.
•
An alarm flashes along with the alarm number.
Status
0.0Hz
Earth Fault [A14]
Auto Remote Trip
Figure 7.2 Alarm Display Example
In addition to the text and alarm code in the LCP, there
are three status indicator lights (LEDs).
On OK
Warn.
Alarm
Warning LED
Warning On
Alarm Off
Trip Lock On
Figure 7.3 Status Indicator Lights (LEDs)
MG33AP22
Instruction Manual
1(1)
0.000kW 0.00A
0.0Hz
0
Alarm LED
Off
On (Flashing)
On (Flashing)
Danfoss A/S © Rev. 09/2014 All rights reserved.

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.
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.
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 adjustable frequency drive
programming and switch settings match the
analog signal type.
•
Perform an input terminal signal test.
WARNING/ALARM 3, No motor
No motor has been connected to the output of the
adjustable frequency drive.
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 in 14-12 Function at Mains
Imbalance.
Troubleshooting
•
Check the supply voltage and supply currents to
the adjustable frequency drive.
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