Communication Error (Remote Display)

What does COM.E mean?

This error occurs on the remote display terminal, indicating a communication timeout (50 ms) after 20 attempts to establish or maintain communication with the drive. This typically points to a faulty connection between the terminal and the drive, or incorrect communication settings, leading to a loss of display functionality and control.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure there are no significant sources of electromagnetic interference (EMI) or radiofrequency interference (RFI) near the communication link.

2. 4

   Cycle power to both the remote display terminal and the drive.