Program code
N40 FPR(A)
N50 G95 X50 Y50 F500
...
Example 3: Derive revolutional feedrate for master spindle
Program code Comment
N30 FPRAON(S1,S2) ; The revolutional feedrate for the master spindle (S1)
must be derived from spindle 2.
N40 SPOS=150 ; Position master spindle.
N50 FPRAOF(S1) ; Deselect derived revolutional feedrate for the master
spindle.
Example 4: Derive revolutional feedrate for positioning axis
Program code Comment
N30 FPRAON(X) ; The revolutional feedrate for positioning axis X
must be derived from the master spindle.
N40 POS[X]=50 FA[X]=500 ; The positioning axis is traversing at 500 mm/revo-
lution of the master spindle.
N50 FPRAOF(X)
Further information
FA[…]
The feedrate type is always G94. When G70/G71 is active, the unit is metric/inches according
to the default setting in the machine data. G700/G710 can be used to modify the unit in the
program.
Note
If no FA is programmed, the value defined in the machine data applies.
FPR(…)
As an extension of the G95command (revolutional feedrate referring to the master spindle),
FPR allows the revolutional feedrate to be derived from any chosen spindle or rotary axis. G95
FPR(…) is valid for path and synchronized axes.
If the rotary axis/spindle specified in the FPR command is operating on position control, then
the setpoint linkage is active. Otherwise the actual-value linkage is effective.
FPRAON(…)
FPRAON is used to derive the revolutional feedrate for positioning axes and spindles from the
current feedrate of another rotary axis or spindle.
FPRAOF(…)
Fundamentals
2.7 Feed control
NC programming
124 Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
To Next Page
Loading...
Need help?
General
