126 · vacon
Fault codes
Tel. +358 (0)201 2121 • Fax: +358 (0)201 2121 205
9
F12
Brake chopper supervision
Brake chopper supervision generates pulses to the brake resistor for response. If no response
is received within set limits, a fault is generated.
Possible cause:
-
No brake resistor is installed.
-
The brake resistor is broken.
-
Brake chopper failure.
Correcting measures:
-
Check the brake resistor and the cabling.
-
If these are ok, the chopper is faulty. Contact your local distributor.
F13
Drive undertemperature fault
Possible cause:
-
Heatsink temperature is under –10
°
C
Correcting measures:
-
Add cabinet heater to prevent too cold temperatures and condensation.
F14
Drive overtemperature fault
Possible cause:
-
Heatsink temperature is above the acceptable limits. See the user manual for the
temperature limit. Overtemperature warning is issued before the actual trip limit is reached.
Correcting measures
-
Check correct amount and flow of cooling air.
-
Check the heatsink for dust.
-
Check ambient temperature.
-
Make sure that switching frequency is not too high in relation to ambient temperature and
motor load.
F22
EEPROM checksum fault
Possible cause:
-
Parameter save fault.
-
Faulty operation.
-
Component failure.
Correcting measures:
-
If the fault re-occurs, contact your local distributor.
