Sinumerik Alarm 20070 Channel %1 axis %2 programmed end position is behind software limit switch %3
%1 = Channel number
%2 = Axis number %3 = “+” or “-”
The axis is traversed as a concurrent positioning axis by the PLC and the target position is situated behind the corresponding software limit switch. The axis is not traversed.
– Alarm display.
Please inform the authorized personnel/service department. Specify smaller target position. Modify MD for SW limit switch. Possibly activate another SW limit switch.
Alarm display showing cause of alarm disappears. No further operator action
- Siemens Diagnostics Guide by Siemens