Cause:
- during start of travel, there was an unexpectedly large movement of the motor shaft
Remedial action:
- for synchronous motors, check encoder offset of encoder, if necessary start encoder adjustment
- check the phase sequence of motor connection (U->U; V->V; W->W)
- check encoder connection
- check / increase the parameter "SPD_KP" in the "Controller" menu
- check the motor data in the "Motor nameplate" menu