Danfoss VLT Micro Drive FC 51 Serie Programmierungshandbuch Seite 64

Fehlersuche und -behebung
6 Fehlersuche und -behebung
A warning or an alarm is signalled by the relevant LED on
the front of the Frequenzumrichter 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.
In the event of an alarm, the Frequenzumrichter will have
tripped. Alarms must be reset to restart operation once
6 6
their cause has been rectified.
This may be done in four ways:
1. By using the [RESET] control button on the LCP.
2. Via a digital input with the "Reset" function.
3. Via serial communication.
HINWEIS
After a manual reset using the [RESET] button on the LCP,
the [AUTO ON] or [HAND ON] button must be pressed 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
(see also table on following page).
No. Description
2 Live zero error
4 Mains phase loss
7 DC over voltage
8 DC under voltage
9 Inverter overloaded
10 Motor ETR over temperature
11 Motor thermistor over temperature
13 Over Current
14 Earth fault
16 Short Circuit
17 Control word timeout
25 Brake resistor short-circuited
27 Brake chopper short-circuited
28 Brake Check
29 Power board over temp
30 Motor phase U missing
31 Motor phase V missing
32 Motor phase W missing
38 Internal fault
44 Earth fault 2
47 Control Voltage Fault
51 AMT check U
64
VLT
and I
nom nom
MG02C503 - VLT
®
Micro Drive FC 51 Programmierungshandbuch
VORSICHT
Alarms that are trip-locked offer additional protection,
means that the mains supply must be switched off before
the alarm can be reset. After being switched back on, the
Frequenzumrichter 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 the
table on the following page, 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 1-90 Motor Thermal
Protection. After an alarm or trip, the motor carries on
coasting, and the alarm and warning flash on the
Frequenzumrichter. Once the problem has been rectified,
only the alarm continues flashing.
Warning Alarm Trip Lock
(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
(X)
(X)
(X)
X
X
X
X
®
ist eine eingetragene Marke von Danfoss
Error
(X)
X
X
X
X
X
X
(X)
(X)
(X)
X
X
X
Parameter
Reference
6-01
14-12
1-90
1-90
8-04
4-58
4-58
4-58