Sinumerik Alarm 10720 Channel %1 block %3 axis %2 software limit switch %4
%1 = Channel number
%2 = Axis name, spindle number
%3 = Block number, label
%4 = String ( + or – )
For the axis, the programmed path violates the currently valid software limit switch. The alarm is activated when preparing the part program block.
– Alarm display.
– Interface signals are set.
– Local alarm reaction.
– Correction block is reorganized.
Correct the NC program.Please inform the authorized personnel/service department. Check the position of the axis as specified in the part program. Machine data: 36100 POS_LIMIT_MINUS/36120 POS_LIMIT_MINUS2 and 36110 POS_LIMIT_PLUS/36130 POS_LIMIT_PLUS2 must be checked for the software limit switches. Check the axis-specific interface signals: “2nd software limit switch plus/minus” (DB 31 61, DBX 12.2 and 12.3) to see whether the 2nd software limit switch is selected. Check currently active zero offsets via the current frame.
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens