When you do a test run, set L8-41 =1 [High Current Alarm Selection = Enabled] and use U4-13 [Peak Hold Current] and a clamp ammeter with the machine under load and not under load to check the motor current during start up.
If the motor torque is not sufficient during start up or if the timing between the motor and the holding brake is unsatisfactory and causes the motor to lock, a large quantity of current will flow. In these conditions, adjust the parameters again and decrease the load to decrease the current to less than 150%. If the current flow is more than 150% of the drive rated current, the heat stress on the IGBTs will decrease the service life of drive parts.
To decrease the effects of heat stress, decrease the carrier frequency of the drive to 2.0 kHz to 2.5 kHz for applications where low audible noise is not necessary.