Siemens SINUMERIK 828D Programming Manual page 136

Feed control
7.5 Feedrate for positioning axes/spindles (FA, FPR, FPRAON, FPRAOF)
Examples
Example 1: Synchronous spindle coupling
With synchronous spindle coupling, the positioning speed of the following spindle can be
programmed independently of the master spindle, e.g. for positioning operations.
Program code
...
FA[S2]=100
...
Example 2: Derived revolutional feedrate for path axes
Path axes X, Y must be traversed at the revolutional feedrate derived from rotary axis A:
Program code
...
N40 FPR(A)
N50 G95 X50 Y50 F500
...
Example 3: Derive revolutional feedrate for master spindle
Program code
N30 FPRAON(S1,S2)
N40 SPOS=150
N50 FPRAOF(S1)
Example 4: Derive revolutional feedrate for positioning axis
Program code
N30 FPRAON(X)
N40 POS[X]=50 FA[X]=500
N50 FPRAOF(X)
136
Comment
; Positioning speed of the following spindle (spindle 2) = 100
deg/min
Comment
; The revolutional feedrate for the master spindle (S1)
must be derived from spindle 2.
; Position master spindle.
; Deselect revolutional feedrate for the master spindle.
Comment
; The revolutional feedrate for positioning axis X
must be derived from the master spindle.
; The positioning axis is traversing at 500
mm/revolution of the master spindle.
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Fundamentals