4225

Drive not ready during axis start

Beckhoff · TwinCAT 2 NC

What does 4225 mean?

During the startup sequence of an axis, the associated drive is found to be in a non-ready state. Possible causes include the drive being in a hardware error state, still in its power-up or boot-up phase (which can take several seconds after a reset), or lacking the necessary controller enable signal. This prevents the axis from becoming operational.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Verify that the drive's controller enable (ENABLE) signal is present and stable.

  2. 4

    Inspect drive power supply and communication connections for stability.

Source: Beckhoff TwinCAT 2 NC
View Official PDF