8
vacon • 98
Options
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
30
290
Safe off
Unstable STO input A
(spurious pulses detected).
Check the Safety switch and
cabling.
Reset the fault and restart.
Should the fault re-occur, con-
tact the distributor near to you.
291
Safe off
Unstable STO input B
(spurious pulses detected).
Check the Safety switch and
cabling.
Reset the fault and restart.
Should the fault re-occur, con-
tact the distributor near to you.
520
Safe diagnostic
Diagnostic failure
(STO inputs are in different state).
Check the Safety switch and
cabling.
Reset the fault and restart the
drive.
Should the fault re-occur, con-
tact the distributor near to you.
530
STO fault
STO function demanded.
Drive is in safe state.
Wait for STO inputs deactiva-
tion.
Reset the fault and restart.
32
312
Fan cooling
Fan life time is up.
Change fan and reset fan life
time counter.
33
320
Fire mode
enabled
Fire mode of the drive is enabled. The
drive's protections are not in use.
Check the parameter settings
37
360
Device changed
(same type)
Option board changed for one previ-
ously inserted in the same slot. The
board’s parameter settings are saved.
Device is ready for use. Old
parameter settings will be
used.
38
370
Device changed
(same type)
Option board added. The option board
was previously inserted in the same
slot. The board’s parameter settings
are saved.
Device is ready for use. Old
parameter settings will be
used.
39
380
Device removed
Option board removed from slot.
Device no longer available.
40
390
Device unknown
Unknown device connected (power
unit/option board)
Device no longer available.
41
400
IGBT
temperature
IGBT temperature (unit tempe
I
2
T) is too high.
Check loading.
Check motor size.
Make identification run.
44
430
Device changed
(different type)
Option board changed or Power unit
changed. No parameter settings are
saved.
Set the option board parame-
ters again if option board was
changed. Set drive parameters
again if power unit was
changed.
45
440
Device changed
(different type)
Option board added. The option board
was not previously present in the same
slot. No parameter settings are saved.
Set the option board parame-
ters again.
46
662
Real Time Clock
RTC battery voltage level is low and the
battery should be changed.
Replace the battery.
47
663
Software updated
Software of the drive has been updated
(either the whole software package or
application).
No actions needed.
Table 36. Fault codes and descriptions.
Fault
code
Fault
ID
Fault name
Possible cause
Remedy
