11
vacon • 106
FAULT TRACING
Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205
18
Unbalance
(Warning only)
Unbalance between power modules in
paralleled units.
Subcode in T.14:
S1 = Current unbalance
S2 = DC-Voltage unbalance
Should the fault re-occur, contact your
local distributor.
22
EEPROM
checksum fault
Parameter save fault
- faulty operation
- component failure
Should the fault re-occur, contact your
local distributor.
24
Counter fault
Values displayed on counters are
incorrect
Have a critical attitude towards values
shown on counters.
25
Microprocessor
watchdog fault
- faulty operation
- component failure
Reset the fault and restart.
Should the fault re-occur, contact your
local distributor.
26
Start-up prevented
Start-up of the drive has been
prevented.
Cancel prevention of start-up if this
can be done safely.
29
Thermistor fault
The thermistor input of option board
has detected too high a motor
temperature
Check motor cooling and loading
Check thermistor connection
(If thermistor input of the option board
is not in use it has to be short
circuited).
31
IGBT temperature
(hardware)
IGBT Inverter Bridge overtemperature
protection has detected too high a short
term overload current
Check loading.
Check motor size.
32
Fan cooling
Cooling fan of the frequency converter
does not start, when ON command is
given
Contact your local distributor.
34
CAN bus
communication
Sent message not acknowledged.
Ensure that there is another device on
the bus with the same configuration.
35
Application
Problem in application software
Contact your distributor. If you are
application programmer check the
application program.
37
Device changed
(same type)
Option board or power unit changed.
New device of same type and rating.
Reset. Device is ready for use.
Old parameter settings will be used.
38
Device added
(same type)
Option board added.
Reset. Device is ready for use.
Old board settings will be used.
39
Device removed
Option board removed.
Reset. Device no longer available.
40
Device unknown
Unknown option board or drive.
Subcode in T.14:
S1 = Unknown device
S2 = Power1 not same type as Power2
S3 = NXS or NXP1 and star coupler
S4 = Software and ctrl unit incompatible
S5 = Old control board version
Contact the distributor near to you.
41
IGBT temperature
IGBT Inverter Bridge overtemperature
protection has detected too high a short
term overload current
Check loading.
Check motor size.
42
Brake resistor
overtemperature
Table 37. Fault codes
Fault
code
Fault
Fault
Correcting measures
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