Yaskawa Yasnac PC NC - Manual (Page 36)

YASNAC PC NC Operating Manual Chapter 2: PC NC System Outline
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2.5.2 Manual Reference Point Return
Axes can be returned to the reference point in manual operation. Follow the procedure indicated
below.
Select the rapid or jog mode by placing the MODE SELECT switch on the machine operation
panel in the RAPID or JOG position.
Move an axis manually (manual rapid traverse or jog feed) to a position away from the refer-
ence point (within the reference point return enabled area). When an axis is located in range
A in Fig. 2.5.2.1, reference point return can be executed correctly.
Turn ON the REFERENCE POINT RETURN switch.
Keep the JOG switch pressed corresponding to the axis returning to the reference point and in
the return direction. When the JOG switch is held pressed, the corresponding axis starts mov-
ing in the same manner as ordinary manual axis feed operation.When the axis reaches the
deceleration point, feedrate is decelerated to a low feedrate and the axis stops automatically
at the reference point.
Upon completion of the reference point return, the REFERENCE POINT lamp of that axis
lights.
Fig. 2.5.2.1 Manual Reference Point Return
Reference Point is a specific position in the machine coordinate system. It is also called
the machine zero point or the machine reference point.