Troubleshooting | 8
Pump Control Instructions INVEOR VFD R5 COBRA_EN_en
39 | 44
8.2
List of Errors
The variable speed 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
application
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
external 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 customer PLC and device
firmware
8
Communication
application<>power
Internal communication
between the application plate
and the power-conducting 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 (monitoring for this
error is activated automatically
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 (monitoring for this
error is activated automatically
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
