Cause:
- the elevator controller does not issue the command "Disable Operation" within the time "T_CMD" entered in the "Control system" menu
Remedial action:
- check the time entered for "T_CMD"
- check the compatibility of the elevator controller with the CAN specification CiA-417
- in the "Bus Info 4" info menu, check the error counter for changes during travel
- for sporadic occurrence: check the EMC-compliant installation of the system (shielding, etc.) or termination of the CAN bus (terminating resistors)