Yaskawa YASNAC PC NC Programming Manual - Manual (Page 199)

4 - 62
YASNAC PCNC Programming Manual Chapter 4: Enhanced Level Commands
(3) Mirror Image OFF (M94)
For the blocks after the block in which M94 is specified, mirror image is canceled.
The mirror image function must be called up and canceled at the same point. If mirror image
is canceled at a point different from the point where mirror image has been called up, axis
movements after the cancellation of mirror image are offset from the programmed paths by
the amount equivalent to the difference between these two points.
FIGURE 4.1.6.2 Disagreement between Mirror Image Call Up and Cancel Positions
(4) Mirror Image External Input Function
In addition to the conventional mirror image function, it is possible to set the mirror image
execution mode when the power is turned ON or the NC is reset by appropriate parameter set-
ting.
If the parameter setting is made so that the M95 mode is set when the power is turned ON or
when the NC is reset, it is possible to select whether or not the mirror image function is called
up at the intermediate positioning point for G28 operation.
The following indicates how this function should be used: