CAN bus communication

What does 34 mean?

A message sent over the CAN bus was not acknowledged by another device on the network. This indicates a problem with the CAN bus communication, which could stem from incorrect configuration, wiring issues, or a faulty device on the bus. Loss of communication means the drive cannot be reliably controlled or monitored.

Complete Troubleshooting Guide

1. 1

   Verify the CAN bus wiring for proper connections, including termination resistors at both ends of the bus, and check cable integrity.

2. 2

   Ensure that at least one other device is present and active on the bus, and that all devices are configured with matching communication parameters (e.g., baud rate, node ID).

3. 3

   Check for conflicting device addresses (node IDs) on the CAN bus, ensuring each device has a unique identifier.