Delta MH300 Series

Chapter 14 Fault CodesMH300
14-81
ID No. Display Fault Name Description
104
CANopen bus off
fault (CbFE)
CANopen bus off fault
Action and Reset
Action condition
Hardwar
e
When CANopen card is not installed, CbFE fault occurs.
Software
When the
master received wrong communication package,
CbFE fault occurs.
Too much interference on BUS
When the CAN_H and CAN_L
communication cable is short,
the master will receive wrong package, and CbFE fault occurs.
Action condition Act immediately
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Cycle the power
Record Yes
Cause Corrective Actions
Check if the CANopen card is
installed
Make sure the CANopen card is installed.
Check if the CANopen speed
is correct
Reset CANopen speed (Pr. 09-37)
Malfunction caused by
interference
1. Verify the wiring and grounding of the communication circuit. It is
recommended to separate the communication circuit from the main
circuit, or wire in 90 degrees for effective anti-interference
performance.
2. Make sure the communication circuit is wired in series.
3. Use CANopen cable or add terminating resistance.
Communication cable is broken
or bad connected
Check or replace the communication cable.