Chapter 13 Warning Codes|MH300
ID No.
Display Warning Name Description
37
CANopen heartbeat
error (CHbn)
CANopen heartbeat error
Action and Reset
Action level
When CANopen Heartbeat detects that one of the slaves does not
response, the CHbn error shows.
The upper unit sets the confirming
time of producer and consumer during
configuration.
Action time
The upper unit sets the confirming time of producer and consumer during
configuration.
Warning setting parameter N/A
Reset method Manual reset
Reset condition The upper unit sends a reset package to clear this warning.
Record When Pr.00-21 CHbn is a “Warning”, and the warning is not recorded.
Cause Corrective Actions
The heartbeat time is too short Increase heartbeat time (Index 1016)
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.
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