Option Unit Communication Timeout

What does E69. mean?

This fault occurs when a communication timeout is detected between the inverter and its mounted option unit. This typically signifies a disconnection or a communication fault in the option unit, preventing data exchange. The inverter trips to indicate the loss of communication with the critical peripheral.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   If the problem persists, the option unit itself may be faulty and require replacement.

2. 4

   Refer to the option unit's manual for specific communication troubleshooting steps.