Current Detector Error

What does E10. mean?

This fault indicates a malfunction within the inverter's current detection circuit. This is a critical internal hardware error, as the inverter relies on accurate current feedback for proper motor control and protection. If this error occurs, the inverter is typically faulty and unable to operate correctly, requiring internal repair or replacement.

• Malfunction of an internal current sensor (e.g., Hall effect sensor, Current Transformer) or its associated amplifier circuit.
• Damage to the inverter's output stage (IGBTs) causing unbalanced current readings or internal shorting.
• Severe electromagnetic interference (EMI) disrupting the current feedback signal to the CPU.
• Contamination (e.g., metallic dust, moisture) on the current sensor board leading to incorrect readings.
• Internal control board communication fault between the current sensing module and the main CPU.

Click steps to track your progress.

1. 1

   Cycle power to the inverter (main disconnect) for at least 30 seconds; some transient errors can clear with a full power reset.

2. 2

   Disconnect the motor from inverter output terminals (U, V, W) and re-apply power; if the fault persists, it indicates an internal inverter issue.

3. 3

   Visually inspect the inverter's control board and power board for signs of physical damage, burn marks, or discolored components.

4. 4

   Ensure proper grounding of the inverter chassis (ground terminal) and shielding of control wiring to mitigate EMI.

5. 5

   If the fault occurs immediately on power-up without a motor connected, an internal hardware failure of the current detection circuit is highly probable, requiring service.