Siemens alarm 22011: [Channel %1: ] Block %3 spindle %2 change to programmed gear stage not possible
SINUMERIK axis/spindle alarm · Siemens 840D/810D powerline
What it means
The programmed or currently required gear stage lies outside the stages available in the machine data, or a change into it is not permitted from the present operating state. The program is stopped at the affected block.
Likely causes
- programmed S value requires a gear stage not parameterized (check gear stage speeds MD 35110/35130)
- requested stage equals the stage already engaged without the necessary intermediate step
- spindle in position-control/orientation state where shifting is locked
- PLC interlock denies the shift in the current machine state
Need the part urgently?
Send us alarm 22011 with your machine details — typical RFQ turnaround is 24–48h.