Sinumerik Alarm 16720 Channel %1 block %2 axis %3 thread lead is zero
%1 = Channel number
%2 = Block number, label
%3 = Axis name, spindle number
No lead was programmed in a thread block with G33 (thread with constant lead) or G331 (rigid tapping).
– Alarm display.
– Interface signals are set.
– Correction block is reorganized.
The thread lead must be programmed for the specified geometry axis under the associated interpolation parameters. X -> I Y -> J Z -> K
Clear alarm with NC START or RESET key and continue the program.
- Siemens Diagnostics Guide by Siemens