Tormach PCNC 440 - 7.3.22 Temporary Work Offsets - G92, G92.1, G92.2, and G92.3; 7.3.23 Feed Rate Mode - G93, G94, and G95

Chapter 7
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UM10372_PCNC440_Manual_0221A
PROgRAMMiNg
7.3.22 Temporary Work Offsets – G92, G92.1, G92.2, and G92.3
To apply a temporary work oset, program: G92 X~ Y~ Z~ A~
Word Definition
X~ X-axis coordinate
Y~ Y-axis coordinate
Z~ Z-axis coordinate
A~ A-axis coordinate
This is a legacy feature. Most modern programming methods do not use temporary work osets.
G92 reassigns the current controlled point to the coordinates specied by the axis words (X~, Y~,Z~,
and/or A~). No moon takes place.
The axis words are oponal, except that at least one must be used. If an axis word is not used for
a given axis, the coordinate on that axis of the current point is not changed. Incremental distance
mode (G91) has no eect on the acon of G92.
When G92 is executed, it is applied to the origins of all coordinate systems (G54-G59.3). For example,
suppose the current controlled point is at X=4 and there is currently no G92 oset acve. Then G92
X7 is programmed. This reassigns the current controlled point to X=7, eecvely moving the origin
of the acve coordinate system -3 units in X. The origins of all inacve coordinate systems also move
-3 units in X. This -3 is saved in parameter 5211.
G92 osets may be already be in eect when the G92 is called. If this is the case, the oset is
replaced with a new oset that makes the current point become the specied value. It is an error if:
• All axis words are omied
The operang system stores the G92 osets and reuses them on the next run of a program. To
prevent this, one can program a G92.1 (to erase them), or program a G92.2 (to stop them being
applied – they are sll stored).
G92.1 – Reset axis osets to zero and sets parameters 5211 - 5219 to zero
G92.2 – Reset axis osets to zero
G92.3 – Sets the axis oset to the values saved in parameters 5211 to 5219
7.3.23 Feed Rate Mode – G93, G94, and G95
To set the acve feed rate mode to inverse me, program: G93
Inverse me is used to program simultaneous coordinated linear and coordinated rotary moon.
In inverse me feed rate mode, an F word means the move should be completed in [one divided by
the F number] minutes. For example, if the F number is 2.0, the move should be completed in half
a minute.