Motor Overload Protection

What does E05 mean?

This fault occurs when the inverter's electronic thermal protection detects that the motor is operating under an excessive load, causing it to overheat. The inverter calculates the motor's thermal state based on current and time, tripping to prevent motor damage from prolonged overload.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Increase acceleration/deceleration times (F002/F202/A092/A292) to reduce peak currents during transient operations.

2. 4

   Check for any incorrectly set motor parameters (H020 to H034 or H005) or an inappropriate motor control method (A044/A244) that might cause unnecessary high current.

3. 5

   If the motor capacity is undersized for the application, consider replacing it with a higher power motor or the inverter with a higher capacity unit.