Sinumerik Alarm 26052 Channel %1 in block %2: path velocity too high for auxiliary function output
%1 = Channel number
%2 = Block number, label
This alarm usually occurs in a block with auxiliary function output during a movement. In this case, the wait for acknowledgement of the auxiliary function was longer than planned. The alarm occurs if internal control inconsistencies cause continuous path mode (G64, G641, …) to be blocked unexpectedly. The path interpolation stops abruptly at the end of the block indicated in the message (regenerative stop). On the next block change, the path continues unless the abrupt stop has caused an error in the position controller (e.g. because the $MA_CONTOUR_TOL setting was over-sensitive).
– Alarm display.
• If the alarm occurred in a block with auxiliary function output during the movement: from SW 5.1 or higher, increase machine $MN_PLC_CYCLE_TIME_AVERAGE or
• program G09 in the block indicated in the message to allow the path interpolation to stop as planned.
Clear alarm with the Delete key or NC START.
- Siemens Diagnostics Guide by Siemens