Troubleshooting; Status Messages; Alarms And Warnings - Danfoss VLT Refrigeration Drive FC 103 Programming Manual

Troubleshooting

5 Troubleshooting

5.1 Status Messages

5.1.1 Alarms and Warnings

A warning or an alarm is signalled by the relevant LED on
the front of the frequency converter and indicated by a
code on the display.
A warning remains active until its cause is no longer
present. Under certain circumstances, operation of the
motor may still be continued. Warning messages may be
critical, but are not necessarily so.
If an alarm occurs, the frequency converter trips. Reset
alarms to restart operation once their cause has been
rectified. Reset the alarm in any of the following ways:
•
By pressing [Reset].
•
Via a digital input with the reset function.
•
Via serial communication/optional fieldbus.
•
By resetting automatically using the auto-reset
function, see parameter 14-20 Reset Mode.
NOTICE
After a manual reset pressing [Reset], press [Auto On] to
restart the motor.
If an alarm cannot be reset, maybe the cause has not been
rectified, or the alarm is trip-locked (see also Table 5.1).
No. Description
1 10 Volts low
2 Live zero error
3 No motor
4 Mains phase loss
5 DC link voltage high
6 DC link voltage low
7 DC over voltage
8 DC under voltage
9 Inverter overloaded
10 Motor ETR over temperature
11 Motor thermistor over temperature
12 Torque limit
13 Over Current
14 Earth fault
15 Incomp. HW
MG16H202
Programming Guide
Alarms that are trip-locked offer additional protection,
meaning that the mains supply must be switched off
before the alarm can be reset. After being switched back
on, the frequency converter is no longer blocked and may
be reset as described above, once the cause has been
rectified.
Alarms that are not trip-locked can also be reset using the
automatic reset function in parameter 14-20 Reset Mode.
WARNING
AUTOMATIC WAKE-UP
The automatic reset function may trigger the automatic
wake-up of the frequency converter and the motor may
start running. Before performing the automatic reset
function, ensure that the running motor does not cause
damage or injury.
If a warning and alarm is marked against a code in
Table 5.1, this means that either a warning occurs before
an alarm, or it can be specified whether it is a warning or
an alarm that is to be displayed for a given fault.
This is possible, for instance, in parameter 1-90 Motor
Thermal Protection. After an alarm or trip, the motor carries
on coasting, and the alarm and warning flash on the
frequency converter. Once the problem has been rectified,
only the alarm continues flashing.
Warning Alarm/Trip
X
(X) (X)
(X)
(X) (X)
X
X
X X
X X
X X
(X) (X)
(X) (X)
X X
X X
X X
X
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Alarm/Trip Lock Parameter Reference
Parameter 6-01 Live
Zero Timeout Function
Parameter 1-80 Functio
n at Stop
(X) Parameter 14-12 Functio
n at Mains Imbalance
Parameter 1-90 Motor
Thermal Protection
Parameter 1-90 Motor
Thermal Protection
X
X
X
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