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.
Complete Troubleshooting Guide
- 1
Check the drive's status indicators for any active hardware errors and clear them if present.
- 2
Allow sufficient time for the drive to complete its internal start-up sequence, especially after a power cycle or hardware error reset.
- 3
Verify that the drive's controller enable (ENABLE) signal is present and stable.
- 4
Inspect drive power supply and communication connections for stability.