YASKAWA JEPMC-MP2300-Y Series User Manual page 491

( 3 ) Saving OL 48 Values before Power OFF
After having set the zero point, save the value of OL
MP2300 so that the value will be written in OL
There are two ways to save the Zero Point Offset (OL
program in an M Register backed up by battery or from the MPE720 Parameter Window. These ways
are described below.
Method 1: Saving in an M Register with Ladder Program
After setting the zero point, subtract the Calculated Position in the Machine Coordinate System
(IL
an M register when it is stored in setting parameter OL
ister in Machine Coordinate System Zero Point Offset (setting parameter OL
way the value of OL
executed.
<Program Example>
The following diagram shows an example of ladder program to store the offset value of axis 1.
In a ladder program for an actual application, select a register with a different address for each axis.
Rising edge of Zero Point Set signal detected.
Zero Point Offset - Calculated Position ⇒ Store in OL
Store offset saved in M register in OL
10) from the Machine Coordinate System Zero Point Offset (OL
48 can be remained unchanged as long as another zero point setting is not
Signal that turns ON only when setting the Machine
Coordinate System Zero Point
Main Program
48.
Execute every scan in high-speed drawing.
9.3 Absolute Position Detection for Finite Length Axes
48 before turning OFF the power of
48 the next time the power is turned ON.
48) value. It can be saved through a ladder
48. Store the contents saved in the M reg-
48.
48) and save the result in
48) every scan. This
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