Communication monitoring Serial interface

What does CE9 mean?

This fault indicates a problem with the serial communication interface, such as an interruption in data exchange, incorrect settings, or a faulty physical connection. The default behavior for this fault is to be switchable off, suggesting it might be configurable to a warning or message level, but its presence still indicates a potential loss of control or monitoring via the serial interface.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check termination resistors: If using RS485, ensure termination resistors are correctly installed at both ends of the bus.

2. 4

   Test communication link: Use diagnostic software or a different device to attempt communication with the drive.

3. 5

   Review monitoring configuration: Check the drive's parameters (if available) for CE9 to see how the communication monitoring is set up and if it's intentionally disabled.