Types Of Return Point (G98,G99); Canned Cycle Motion Conditions - Brother TC-32B Manual

TC-32B
5.3.3 Types of return point (G98, G99)
There are two types of return points - initial point level return (G98) and R point level return (G99)
- when the canned cycle motions are finished.
I nitial point level r etur n (G98)
R point
Z point
(Note 1)
G98 and G99 are modal commands. G98 is effective when the power is turned ON.
(Note 2)
If there is no Z-axis movement even if the tool length offset mode is selected, the
initial point is memorized without offset.
(Note 3)
The Z-axis machine coordinate value becomes the initial point when the canned
cycle cancel mode changes to the canned cycle mode.
5.3.4

Canned cycle motion conditions

The canned cycle motions are available when the following commands are given.
(1) The drilling mode (G73, G74, G76~G78, G81~G87, G89, G173, G177, G178, G181~G183,
G185, G186, G189) command blocks contain any of X, Y, Z, R, A, B or C.
(2) The blocks after the drilling mode command block through the canned cycle cancel block
contain any of X, Y, Z, R, A, B or C.
(Note)
If there is no X, Y, Z, R, A, B or C in the block during the canned cycle, and the
drilling data other than those are commanded, the drilling data only are memorized.
2004/01/22
Chapter 5 Preparation function (canned cycle)
Initial point
5 - 5
R point level return (G99)
R point
Z point
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eTCOMNCPR5-1.doc
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