Danfoss VLT AutomationDrive FC 301 Programming Manual page 691

VLT AutomationDrive FC 301/302
Programming Guide
7 Troubleshooting
7.1 Status Messages
7.1.1 Warnings and Alarms
A warning or an alarm is signaled by the relevant indicator light on the front of the drive 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 con-
tinued. Warning messages may be critical, but are not necessarily so.
In the event of an alarm, the drive trips. Reset the alarm to resume operation once the cause has been rectified.
3 ways to reset:
• Press [Reset].
• Via a digital input with the reset function.
• Via serial communication/optional fieldbus.
After a manual reset pressing [Reset], press [Auto On] to restart the motor.
If an alarm cannot be reset, the reason may be that its cause has not been rectified, or the alarm is trip locked.
Alarms that are trip locked offer extra protection, meaning that the mains supply must be switched off before the alarm can be
reset. After being switched back on, the drive is no longer blocked and can be reset 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: Auto-
matic wake up is possible.)
If a warning or alarm is marked against a code in the alarm/warning code list, this means that either a warning occurs before an
alarm, or it is possible to specify whether a warning or an alarm should 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 drive is reset.
No missing motor phase detection (numbers 30-32) and no stall detection are active when parameter 1-10 Motor Construction is
set to [1] PM non-salient SPM.
7.1.2 Alarm/Warning Code List
Table 1434: Alarm/Warning Code List
Number 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 overvoltage
8 DC undervoltage
Danfoss A/S © 2022.12
N O T I C E
N O T I C E
Warning Alarm/trip Alarm/trip
lock
X – –
(X) (X) –
(X) – –
(X) (X) (X)
X – –
X – –
X X –
X X –
Troubleshooting
Parameter reference
Paremeter 14-90.0 Fault Level
Parameter 6-01 Live Zero Timeout Func-
tion
Parameter 1-80 Function at Stop and pa-
rameter 4-58 Missing Motor Phase when
set to [5] Motor check
Parameter 14-12 Response to Mains Im-
balance
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–
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