HEIDENHAIN CNC Pilot 4290 - Manual (Page 128)

4 DIN PLUS 116
Zero point shift G51
Shifts the workpiece zero point by ”Z” (or ”X”). The shift is referenced
to the workpiece zero point defined in setup mode.
Even if you shift the zero point several times with G51, it is still
always referenced to the workpiece zero point defined in setup mode.
The zero point shift remains in effect up to the end of the program or
until it is canceled by another zero point shift.
Parameters
X, Z: Displacement (X radius value) – default: 0
Parameter-dependent zero offset G53, G54, G55
Shifts the workpiece zero point by the value defined in the setup
parameters 3, 4, 5. The shift is referenced to the workpiece zero point
defined in setup mode.
Even if you shift the zero point several times with G53, G54, G55, it is
still always referenced to the workpiece zero point defined in setup
mode.
The zero shift applies until the end of the program or until it is
canceled by another zero shift
A shift in X is entered as a radius.
4.6.6 Zero Point Shift
You can program several zero shifts in one NC program. The
relationship of the coordinates for blank/finished part, auxiliary
contours are retained by the zero offset description.
G920 temporarily deactivates zero point shifts – G980 reactivates
them.
Overview
G51 n Relative shift
n Programmed shift
n Reference: Previously defined workpiece
zero point
G53, G54, G55
n Relative shift
n Shift defined in parameters
nÿ Reference: Previously defined workpiece
zero point
G56 n Additive shift
n Programmed shift
n Reference: Current workpiece zero point
G59 n Absolute shift
n Programmed shift
n Reference: Machine zero point
4.6 Machining Commands