Siemens SINUMERIK 840D sl Operating Manual page 525

Parameters
ZR
FR
Fixed
stop
Function, complete
Withdraw blank
F
Cutting-off
cycle
Function, complete
Work offset
ZW
ZV
Turning
Operating Manual, 02/2012, 6FC5398-8CP40-3BA0
Description
Position, feedrate reduction (abs or inc)
Position from which a reduced feedrate is used.
Reduced feedrate
Travel to fixed stop
Yes

The counterspindle stops at a defined distance away from transfer position
Z1 and then traverses with a defined feedrate up to the fixed stop.
No

The counterspindle traverses to the transfer position Z1.
Withdrawing
Withdraw complete plank:
Yes

No

Feedrate
Cutting-off cycle in the following block
Yes

No

Rear face
Work offset in which the coordinate system, which was shifted according to ZW
and by ZV as well as mirrored in Z, must be saved:
Basic reference

G54

G55

G56

G57

...

Machining position for special axis (abs.); machine coordinate system
Offset Z = 0
Workpiece zero is offset in Z direction (inc, the sign is also evaluated)
Programming technology functions (cycles)
8.7 Additional cycles and functions in ShopTurn
Unit
mm/rev
mm/min
mm
mm
525