Digital Operator Connection Failure

What does E40. mean?

This error occurs when communication is lost or interrupted between the inverter and the remote Digital Operator (Model: 3G3AX-OP01) for a specified duration (e.g., 5 seconds or longer). This indicates a problem with the connection cable or a fault in the Digital Operator itself, preventing the inverter from receiving commands or displaying status.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Verify that the remote Digital Operator (3G3AX-OP01) is functioning correctly.

2. 4

   Ensure the inverter's software number matches the CX-Drive project's software number if configuring via software.