COF

CANopen® Communication Interruption

Schneider Electric · Altivar Machine ATV320 Variable Speed Drive

What does COF mean?

Indicates an interruption in the CANopen® communication with the drive. This means the drive is no longer receiving commands or transmitting data via the CANopen® network, leading to a loss of control and operational status.

Complete Troubleshooting Guide

  1. 1

    Verify the CANopen® network wiring, including proper termination resistors, for continuity and shielding.

  2. 2

    Check the CANopen® master device for proper operation, status, and configuration.

  3. 3

    Ensure the CANopen® communication parameters (e.g., baud rate, node ID) in the drive are correct and match the network.

  4. 4

    Inspect the CANopen® port on the drive or communication card for any physical damage.

Source: Schneider Electric Manual