vacon Fault tracing 77(80)
Vacon Oyj Telephone: +358-201-2121 Fax: +358-201-212 205
24-hour support: +358-40-8371 150 Email: vacon@vacon.com
9
13
Frequency
converter under-
temperature
Heatsink temperature is under –10°C
14
Frequency
converter
overtemperature
Heatsink temperature is over 90°C.
Overtemperature warning is issued when
the heatsink temperature exceeds 85°C.
Check the correct amount and flow of
cooling air.
Check the heatsink for dust.
Check the ambient temperature.
Make sure that the switching frequency is
not too high in relation to ambient
temperature and motor load.
15
Motor stalled Motor stall protection has tripped. Check motor.
16
Motor
overtemperature
Motor overheating has been detected by
frequency converter motor temperature
model. Motor is overloaded.
Decrease the motor load.
If no motor overload exists, check the
temperature model parameters.
17
Motor underload Motor underload protection has tripped.
22
23
EEPROM
checksum fault
Parameter save fault
− faulty operation
− component failure
Contact the distributor near to you
24
Counter fault Values displayed on counters are
incorrect
25
Microprocessor
watchdog fault
− faulty operation
− component failure
Reset the fault
and restart.
Should the fault re-occur, contact the
distributor near to you.
Please visit:
http://www.vacon.com/wwcontacts.html
26
Start-up
prevented
Start-up of the drive has been prevented. Cancel prevention of start-up.
29
Thermistor fault The thermistor input of option board has
detected increase of the 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)
34
Internal bus
communication
Ambient interference or defective
hardware
Should the fault re-occur, contact the
distributor near to you.
Please visit:
http://www.vacon.com/wwcontacts.html
37
Device change Option board changed.
Different power rating of drive.
Reset
38
Device added Option board added.
Drive of different power rating added.
Reset
39
Device removed Option board removed.
Drive removed.
Reset
40
Device unknown Unknown option board or drive. Contact the distributor near to you.
Please visit:
http://www.vacon.com/wwcontacts.html
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
Brake resistor overtemperature protection
has detected too heavy braking
Set the deceleration time longer.
Use external brake resistor.
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