Option PCB Communication Error Alarm

What does F6-CEA mean?

This alarm occurs when a serial communication option board, attached to the drive at the 2CN connector, detects a communication error, and parameter F6-01 is specifically set to '3: Alarm Only'. In this state, the drive acknowledges the communication issue without energizing the fault output or stopping operation, allowing for continuous monitoring despite communication problems.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Check the communication parameters (e.g., baud rate, parity, address) configured on both the option board and the external master for consistency.

2. 4

   Monitor the communication status and logs on the external master to pinpoint the source of intermittent errors without interrupting drive operation.

3. 5

   Consider changing F6-01 to a fault-triggering setting if the communication errors are critical to the controlled process and require immediate drive stoppage.