Troubleshooting; Status Messages; Warnings/Alarm Messages - Danfoss VLT AQUA Drive FC 202 Programming Manual

Troubleshooting

5 Troubleshooting

5.1 Status Messages

5.1.1 Warnings/Alarm Messages

A warning or an alarm is signaled 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 continue. Warning messages may be
critical, but are not necessarily so.
An alarm trips the frequency converter. Reset alarms to
restart operation once their cause has been rectified.
This can be done in 3 ways
•
By pressing [Reset].
•
Via a digital input with the reset function.
•
Via serial communication/optional fieldbus.
NOTICE
After a manual reset pressing [Reset], press [Auto On] to
restart the motor.
If an alarm cannot be reset, its cause may not have been
rectified, or the alarm is trip-locked (see also Table 5.1).
Alarms that are trip-locked offer extra protection, meaning
that the mains supply must be switched off before the
Num Description
-
ber
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 overvoltage
8 DC undervoltage
9 Inverter overloaded
10 Motor ETR overtemperature
11 Motor thermistor overtemperature
12 Torque limit
13 Overcurrent
MG20OB02
Programming Guide
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.
NOTICE
Automatic wake-up is possible!
If a warning and alarm are 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 shown 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. Once the
problem has been rectified, only the alarm continues
flashing until the frequency converter is reset.
NOTICE
No missing motor phase detection (numbers 30–32) and
no stall detection is active when parameter 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) (X)
X X
X X
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Alarm/Trip Lock Parameter
–
– Parameter 6-01 Live Zero Timeout
– Parameter 1-80 Function at Stop
(X) Parameter 14-12 Function at
Mains Imbalance
–
–
–
–
–
– Parameter 1-90 Motor Thermal
– Parameter 1-90 Motor Thermal
–
X
5
reference
Function
–
–
–
–
–
Protection
Protection
–
–
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