Err29 fault in Emotron VS Series Drive indicates Instantaneous overcurrent. This means there was a sudden, massive spike in output current exceeding the hardware protection limit, usually caused by a short circuit or extreme sudden load.

Possible Causes:

1: Inverter output circuit being grounded or short-circuit;
2: The acceleration and deceleration time is too short;
3: Manually torque boost or V/F curve not appropriate;
4: Voltage too low;
5: Start the running motor;
6: Sudden-load in the acceleration process;
7: Model selection of inverter power is too small.

Solutions:

1: Troubleshooting peripheral problems;
2: To increase the acceleration time;
3: Adjust the manually torque boost or V/F curve;
4: Adjust the voltage to normal range;
5: Select RPM track start or start after motor stopped;
6: Cancel sudden-load;
7: Select the inverter with higher rating.