34

CAN bus communication

Vacon · NXS NXP Drive

What does 34 mean?

A message sent over the CAN bus was not acknowledged by another device on the network. This typically points to a communication issue, such as an incorrectly configured device, a disconnected bus, or a fault in the CAN network's physical layer. Loss of communication can prevent proper control and monitoring of the drive.

Complete Troubleshooting Guide

  1. 1

    Verify the physical CAN bus cable connections, including proper termination resistors.

  2. 2

    Check the network configuration of all devices on the CAN bus, ensuring compatible settings and unique addresses.

  3. 3

    Confirm that other devices on the bus are powered on and functioning correctly.