4650

Drive hardware not ready to operate

Beckhoff · TwinCAT 2 NC

What does 4650 mean?

The drive hardware is not in a ready state for operation. This can be caused by the drive being in a hardware error state, still undergoing its start-up phase (which can take several seconds after a reset), or missing the necessary controller enable signal. Until the drive is ready, no motion commands can be executed.

Complete Troubleshooting Guide

  1. 1

    Check the drive's status indicators for any active hardware errors and clear them according to the drive's manual.

  2. 2

    Allow sufficient time for the drive to complete its internal booting sequence, especially after power cycling or a hard reset.

  3. 3

    Verify that the controller enable (ENABLE) signal is active and stable, and troubleshoot any interlocks preventing it.

  4. 4

    Inspect the drive's power supply and communication connections for stability.