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VLT
®
FCM Series
Turn off the FC motor and check whether the
motor shaft can be turned.
NB!:
If shock loads occur this alarm may appear.
ALARM: 14
Earth fault (EARTH FAULT):
There is a discharge from the output phases
to earth, either between the inverter and the
motor or in the motor itself.
ALARM: 15
Supply fault (SWITCH MODE FAULT):
Fault in the switch mode power supply (internal
24 V supply).
Contact your Danfoss supplier.
ALARM: 16
Short-circuiting (CURR.SHORT CIRCUIT):
There is short-circuiting on the motor terminals
or the motor itself.
Contact your Danfoss supplier.
ALARM: 17
Standard bus timeout (STD BUSTIMEOUT)
There is no communication to the FC motor. The
warning will only be active when parameter 514 has
been set to another value than
OFF
.
If parameter 514 has been set to
stop and trip
,
it will first give a warning and then ramp down
until it trips, while giving an alarm.
Parameter 513 Bus time interval could possibly
be increased.
WARNING/ALARM 18
HPFB bus timeout (HPFB BUS TIMEOUT)
There is no communication with the FC motor. The
warning will only be active when parameter 804 has
been set to another value than OFF. If parameter 804
has been set to
Stop and trip
, it will first give a warning
and then ramp down until it trips, while giving an alarm.
Parameter 803
Bus time
out could possibly
be increased.
WARNING 33
Out of frequency range:
This warning is active if the output frequency has
reached parameter 201
Output frequency low limit or
parameter
202
Output frequency high limit
.
WARNING/ALARM 34
HPFB error (HPFB ALARM):
The profibus communication is not working correctly.
ALARM 35
Inrush fault (INRUSH FAULT):
This warning occurs when the unit has been switched
on too many times within 1 minute.
WARNING/ALARM 36
Overtemperature (OVERTEMPERATURE):
ALARM: 37
Internal error (INTERNAL ERROR):
An error has occurred in the system. Contact
your Danfoss supplier.
■
Warning word, extended Status word and
Alarm word
Warning word, extened status word and alarm
wordare shown on the display in Hex format. If
there are more than one warning or alarm, a sum
of all warnings or alarms will be shown.
Warning word, extened status word and alarm
word can also be displayed using the serial bus
in parameter 540, 541 and 538.
Bit (Hex)
Warning word (P. 540)
00000008
HPFB timeout
00000010
Standard bus timeout
00000040
Current limit
00000200
Inverter overload
00001000
Voltage warning low
00002000
Voltage warning high
00004000
Phase loss
00010000
Live zero error warning
00400000
Output freq. limit warning
00800000
HPFB error
40000000
24 V supply warning
80000000
Inverter temp. high
Bit (Hex)
Extended status word (P.541)
01
Ramping
04
Start clockwise/counterclockwise
08
Slow down
10
Catch-up
8000
Frequency limit
MG.03.H3.02 - VLT is a registered Danfoss trademark
96