Network Fault

What does CnF mean?

This read-only fault code indicates a communication problem on an installed option card (e.g., a communication card). The exact nature of the fault depends on the specific network card. It means the drive cannot communicate correctly over the specified network, leading to a loss of external control, monitoring, or parameter access via that network.

Complete Troubleshooting Guide

1. 1

   Consult the specific manual for the installed network option card for detailed fault codes and troubleshooting steps.

2. 2

   Check the physical connection of the option card within the drive for proper seating and connection.

3. 3

   Cycle power to the drive to attempt a reset of the communication card and clear the fault.

4. 4

   Verify the network cable connections and termination on the option card.