Siemens SINUMERIK 840D sl Function Manual page 1256

S1: Spindles
16.4 Configurable gear adaptation
Oscillation mode
Typical time sequence for the gear stage change with a spindle:
t :
1
t :
2
t :
3
1256
With the programming of S1300, NCK detects a new gear stage (second gear stage), sets NST
DB31, ... DBX82.3 (change gear) and blocks processing for the next part program block (= in‐
ternal feed disable*).
The spindle is stationary, and oscillation starts (oscillation via the NCK). NST DB31, ... DBX18.5
(oscillation speed) must be set at the latest by t
The new gear stage is engaged. The PLC user transfers the new (actual) gear stage to the NCK
and sets NST DB31, ... DBX16.3 (gear is changed).
.
2
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions