Diagnostics And Troubleshooting; Alarms And Warnings Overview - Danfoss VLT DriveMotor FCP 106 Programming Manual

Diagnostics and Troubleshoo...

5 Diagnostics and Troubleshooting

5.1 Alarms and Warnings Overview

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.
Event type
Warning
5 5
Alarm
Table 5.1 Event Type LED Signals
A warning remains active until its cause is no longer
present. Under certain circumstances, motor operation can
continue. Warning messages can be critical, but are not
necessarily so.
In the event of an alarm, the frequency converter trips.
Reset of alarms is required to restart operation, once the
cause has been rectified.
To reset an alarm:
1. Press [Reset], or
2. Use the "Reset" function via a digital input, or
3. Reset via serial communication, or
4. Use the [Auto Reset] function, which is a default
setting. See parameter 14-20 Reset Mode. This
form of reset cannot be used for a trip lock
alarm.
NOTICE
To restart the motor after reset using [Reset], press [Auto
On] or [Hand On].
When an alarm fails to reset, check
•
that the cause has been rectified
•
for trip lock. Refer to Table 5.2.
No. Description
2 Live zero error
3 No motor
4 Mains phase loss
7 DC over voltage
8 DC under voltage
9 Inverter overload
92
®
VLT DriveMotor FCP 106 and FCM 106 Programming Guide
Trip
A trip is the action occuring when an alarm has appeared.
The original event that caused an alarm cannot damage
the frequency converter or cause dangerous conditions.
The trip coasts the motor and can be reset by pressing
[Reset] or via a digital input (parameter group 5-1* Digital
Inputs [1]). For alarms with trip, but no trip lock, reset using
LED signal
the automatic reset function in parameter 14-20 Reset
yellow
Mode.
flashing red
Trip lock
A trip lock alarm occurs when a situation arises, which can
result in equipment damage. A trip lock alarm offers more
protection, because the mains supply must be switched off
before the alarm can be reset. After rectification of cause
and power cycling, the frequency converter is no longer
blocked. Reset as described above.
UNEXPECTED START
Automatic wake-up can occur when using reset via
parameter 14-20 Reset Mode. Failure to be prepared for
start can result in personal injury.
Warning and alarm
For events marked with warning and alarm in Table 5.2,
either
Example: Parameter 1-90 Motor Thermal Protection.
After an alarm or trip, the motor coasts, and both the
alarm and warning LEDs flash. Once the cause has been
rectified, only the alarm LED continues flashing.
Warning
(X)
(X)
(X)
X
X
X
MG03N102 - Rev. 2013-12-02
CAUTION
•
Be prepared for unexpected start.
•
a warning occurs before an alarm, or
•
the event can be set to signal either warning or
alarm
Alarm Trip
Lock
(X)
(X) (X)
X
X
X
Parameter
Reference
6-01
1-80
14-12