74 • vacon control keypad
Tel: +358-201-2121 • Fax: +358-201-212 205
7
40 Device unknown Unknown option board or drive. Contact the nearest Vacon distributor.
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.
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)
<0}
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.
Please visit:
http://www.vacon.com/wwcontacts.html
54 Slot fault Defective option board or slot Check board and slot.
Contact the nearest Vacon distributor.
Please visit:
http://www.vacon.com/wwcontacts.html
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
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