HEIDENHAIN SW 548328-05 - Manual (Page 250)

250 Cycle programming
4.5 Recessing cy
cles
Type of machining for technology database access: Parting
Cycle run
1 Approach the workpiece from the starting point to the safety
clearance
2 Cut to depth of chamfer or rounding and machine the chamfer/
rounding if defined
3 Depending on the cycle parameters, move at feed rate to
 The turning center, or
 The inside diameter (tube) XE
If you have programmed a feed rate reduction, the MANUALplus
switches to the reduced feed E as soon as the tool reaches the
diameter feed reduction I
.
4 Retract at end face and return to starting point.
5 Move to the tool change point according to the G14 setting
MFS M at beginning: M function that is executed at the
beginning of the machining step
MFE M at end: M function that is executed at the end of the
machining step
WP Displays which workpiece spindle is used to process the
cycle (machine-dependent)
 Main drive
 Opposing spindle for rear-face machining
The limit to the maximum speed "D" is only effective in the
cycle. After the cycle ends, the speed limit before the
cycle become effective.