60 • vacon
control keypad
Tel: +358-201-2121 • Fax: +358-201-212 205
7
Fault
code
Fault
Possible cause
Correcting measures
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.
43
Encoder fault
Note the exceptional Fault data record.
See
7.3.4.3. Additional codes:
1 = Encoder 1 channel A is missing
2 = Encoder 1 channel B is missing
3 = Both encoder 1 channels are missing
4 = Encoder reversed
Check encoder channel connections.
Check the encoder board.
44
Device changed
(different type)
Option board or control unit changed.
Option board of different type or
different power rating of drive.
Reset
Note: No fault time data record!
Note: Application parameter values
restored to default.
45
Device added
(different type)
Option board or drive added.
Option board of different type or drive of
different power rating added.
Reset
Note: No fault time data record!
Note: Application parameter values
restored to default.
50
Analogue input
(sel. signal range
4 to 20 mA)
Current at the analogue input is < 4mA.
control cable is broken or loose
signal source has failed
Check the current loop circuitry.
51
External fault
Digital input fault.
52
Keypad communi-
cation fault
There is no connection between the
control keypad and the inverter.
Check keypad connection and possible
keypad cable.
53
Fieldbus fault
The data connection between the
fieldbus Master and the fieldbus board
is broken
Check installation.
If installation is correct contact the
nearest Vacon distributor.
54
Slot fault
Defective option board or slot
Check board and slot.
Contact the nearest Vacon distributor.
56
PT100 board
temp. fault
Temperature limit values set for the
PT100 board parameters have been
exceeded
Find the cause of temperature rise
Table
7
-
2. Fault codes