Plane Designation (G17, G18, G19) - YASKAWA MOTIONPACK-110 Descriptive Information

4.2.8 PLANE DESIGNATION (G17, G18, G19) "
D (1) The planes for circular G18or G19.
executing interpolation designated
are
by G17,
G17: XY plane
G18: ZX plane
G19: YZ plane
(2) Motion commands for any single slide can be programi-ned without regard to the plane
designat'zon by G17, G18, G19.
For example, when "G17 Z...;" is programmed, the slide along the Z axis moves.
(3) Immediately after turning on the power, G17 (XY plane) is automatically turned on.
4.2.9 AUTOMATIC RETURN-TO-REFERENCE POINT (G28)
D (1)lG28 X..-Y-.. Z...; I
With this command, first, the machine is moved to X, Y, Z by quick feed (G00), and
then, to the reference point. However, immediately after the power is turned On, the
machine moves directly to the reference point without first moving to X, Y, Z.
(a) The machine moves along the three axes simultaneously, but any axis, not commanded,
does not move.
D (Program example)
G28 X20. Y10.;
Y AXIS
START POINT
O_ J POSITION|NG
X AXIS LS POSITION
__" / REFUGE POINT ""
_,
_ (x.Y)
__
REFERENCE .f_ RETURN-TO-REFERENCE
POINT
_. / '] POINT ="--- X AXIS
Fig. 4.12
(2) High Speed Reference Point Return Specifications
(a) High speed reference point return specifications can be made in place of the automatic
reference point return described above by setting parameter #1001 D2.
(b) The high speed reference point return differs from the automatic reference point return
in that axis movement is always positioned in rapid positioning (GO0). Thus, axis
movement is not decelerated to approach or creep speed around the reference point,
enabling a return to the reference point in a short period of time.
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