5 Troubleshooting 
 
 
5
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Er.994: CAN address conict
Cause Conrming Methods Corrective Action
CAN address conict 
occurs.
Check whether H0C-00 (servo shaft 
address) is allocated repeatedly.
Allocate servo shaft address of salves and 
ensure that allocation of H0C-00 is not 
repeated.
5.2.3 Internal Faults
When any of the following fault occurs, contact Inovance for technical support.
Er.602: Angle auto-tuning failure
Er.220: Phase sequence incorrect
Er.A40: Motor auto-tuning failure
Er.111: Servo internal parameters abnormal