MH860 series hydraulic servo drive
Troubleshooting
98
Err09: CAN fault
ERR09
Is CAN communication connection
abnormal? (including terminal resistor
jumpers, up to two jumpers shorted)
Are multi-pump parameter settings incorrect
for a multi-pump system?
No
Yes
Are process command mode parameter
settings correct? (Alarm for continuous CAN
communication input)
No
Yes
No
Does it run properly after the CAN
communication signal connector is replaced?
Yes
No
Yes
Yes
Does the control system run properly when
the drive and control system receive
commands through CAN communication?
No
Remove the
wiring fault.
Contact the local dealer
or our technical support.
CAN
communication
drive board
fault
Maintain the
upper
computer.
Correct
parameter
settings.
Correct
parameter
settings.
Err11: Self-check fault
ERR11
Contact the local
dealer or our
technical support.
Err12: Task re-entry
ERR12
Are parameter settings incorrect?
(To check for errors: Restore to default values,
write parameters, power off, re-power on the
drive, and check whether the fault is cleared)
No
Yes
Set drive
parameters
again.
Contact the local
dealer or our technical
support.