Troubleshooting; Warnings/Alarm Messages - Danfoss VLT AQUA Drive FC 200 Programming Manual

Troubleshooting

5 Troubleshooting

5.1.1 Warnings/Alarm Messages

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
5 5
motor may still be continued. Warning messages may be
critical, but are not necessarily so.
In the event of an alarm, the frequency converter will have
tripped. Alarms must be reset to restart operation once
their cause has been rectified.
This may be done in three ways
•
By pressing [Reset].
•
Via a digital input with the "Reset" function.
•
Via serial communication/optional fieldbus.
NOTE
After a manual reset pressing [Reset], [Auto On] must be
pressed to restart the motor.
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
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VLT AQUA Drive Programming Guide
If an alarm cannot be reset, the reason may be that its
cause has not been rectified, or the alarm is trip-locked
(see also Table 5.1).
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 14-20 Reset Mode (Warning:
automatic wake-up is possible!)
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 else that it is possible to specify whether it is
a warning or an alarm that is to be displayed for a given
fault.
This is possible, for instance, in 1-90 Motor Thermal
Protection. After an alarm or trip, the motor carries on
coasting, and the alarm and warning flash. Once the
problem has been rectified, only the alarm continues
flashing until the frequency converter is reset.
NOTE
No missing motor phase detection (no 30-32) and no stall
detection is active when 1-10 Motor Construction is set to
[1] PM non salient SPM.
Warning Alarm/Trip
X
(X) (X)
(X)
(X) (X)
X
X
X
X
X
(X) (X)
(X) (X)
X
X
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MG20O602 - VLT is a registered Danfoss trademark
Alarm/Trip Lock
(X)
X
X
X
X
X X
Parameter
Reference
6-01 Live Zero Timeout
Function
1-80 Function at Stop
14-12 Function at
Mains Imbalance
1-90 Motor Thermal
Protection
1-90 Motor Thermal
Protection