Sinumerik Alarm 22260 Channel %1 spindle %2 thread might be damaged
%1 = Channel number
%2 = Axis name
%3 = Block number
When DECODING SINGLE BLOCK has been selected and there is a chain of thread blocks, then machining pauses occur at the block limits until the next block is executed with the new NC Start. In normal single block mode, the program is stopped by a higher-level logic only at the block boundaries at which no contour distortions or contour errors can occur. With chained thread blocks, this is the last thread block!
– Alarm display.
If only one thread block has been programmed, the alarm message can be ignored. If there are several consecutive thread blocks, this machining section must not be executed in the automatic DECODING SINGLE BLOCK mode.
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens