Siemens SINUMERIK 840D sl Programming Manual page 138

Feed control
7.6 Programmable feedrate override (OVR, OVRRAP, OVRA)
Examples
Example 1:
Set feedrate override: 80%
Program code
N10 ... F1000
N20 OVR=50
...
Example 2:
Program code
N10 OVRRAP=5
...
N100 OVRRAP=100
Example 3:
Program code
N... OVR=25 OVRA[A1]=70
Example 4:
Program code
N.. OVRA[SPI(1)]=35
or
Program code
N.. OVRA[S1]=35
138
Comment
; The programmed path feedrate F1000 is changed in F400 (1000 *
0.8 * 0.5).
Comment
; The rapid traverse velocity is reduced to 5%.
; The rapid traverse velocity is reset to 100% (= default
setting).
Comment
; The path feedrate is reduced to 25% and the
positioning feedrate for positioning axis A1 is
reduced to 70%.
Comment
; The speed for spindle 1 is reduced to 35%.
Comment
; The speed for spindle 1 is reduced to 35%.
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals