Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set - Manual (Page 604)

Cylindrical Grinding Fixed Cycles
Chapter 17
17-30
The format for the G88 cycle is as follows:
G18;
G88Z__X__L__F__E__P__;
Table 17.H summarizes the G88 cycle parameters. For a detailed
description of these parameters, see the text below and page 17-9.
Table 17.H
G88 Cycle Parameters
Parameter: Definition: Default Value: Possible Value:
Plane axis 1 1 shoulder end point value must be programmed abs. or inc.
Plane axis 2 1 plunge end point value must be programmed abs. or inc.
L 3 number of spark-out revolutions zero zero to 999
F 2 plunge feedrate last feedrate programmed valid F word
E 3 shoulder feedrate plunge feedrate valid F word
P 3 for G88 2 for G88.1 dress program number from last cycle programmed valid program number
1 must be programmed 2 must have been programmed in some previous block if omitted 3 optional
Figure 17.9 shows the axis motions that make up the G88 shoulder
grinding with diameter plunge cycle. This figure assumes that the ZX
plane (G18) is active.
Figure 17.9
G88 Shoulder Grinding with Diameter Plunge Motions
Z
Part
START
Retract X
12059-I
17.10
G88 or G88.1 Shoulder
Grinding With Diameter
Plunge