8 | Troubleshooting
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0870208958_INVEOR_VFD_-0002_PCI_en
8.2 List of Errors
The variable-frequency drive shuts down if an error occurs. Consult the flash code table /
PC tool for the corresponding error numbers.
NOTE
Error messages can only be acknowledged once the error has been remedied.
Error messages can be acknowledged as follows:
• using remote control
• switch device off and on again
The following section contains a list of possible error messages.
Please contact your Busch representative if you encounter errors that are not listed here.
No. Error name
Description of error
Possible causes/remedy
1
Undervoltage 24 V applica-
tion
Supply voltage for the application is
less than 15 V
24 V supply overload
2
Overvoltage 24 V application Supply voltage for the application is
greater than 31 V
Internal 24 V supply is not OK or ex-
ternal supply is not OK
6
Customer PLC version error
The version of the customer PLC
doesn't match the device firmware
Check the version numbers of the cus-
tomer PLC and device firmware
8
Communication applica-
tion<>power
Internal communication between the
application plate and the power-con-
ducting plate is not OK
EMC interference
10
Parameter distributor
The internal distribution of parameters
during initialisation failed
Parameter set is incomplete
11
Time-out power
The power part does not respond
Operation with 24 V without mains
feed-in
13
Cable break at analogue in1
(4–20 mA / 2–10 V)
Current or voltage is less than the
lower limit of analogue input 1 (mon-
itoring for this error is activated auto-
matically by setting parameter 4.021
to 20%)
Cable break, faulty external sensor
14
Cable break at analogue in 2
(4–40 mA / 2–10 V)
Current or voltage is less than the
lower limit of analogue input 2 (mon-
itoring for this error is activated auto-
matically by setting parameter 4.021
to 20%)
Cable break, faulty external sensor
15
Stall detection
The drive shaft of the motor is stalled.
5.080
Remove the blockage
16
PID dry run
No PID actual value despite maximum
speed
PID actual value sensor defective
Extend dry run time parameter 3.072
17
Start-up error
Motor not starting up or starting up
incorrectly. 5.082
Check motor connections/check mo-
tor and controller parameters; if neces-
sary, disable error (5.082)
18
Excess temperature for fre-
quency converter application
Inner temperature too high
Insufficient cooling, low motor speed
and high torque, switching frequency
too high
21
Bus time-out
No response from bus sharing unit or
remote control/PC
Check bus wiring