YASKAWA MP2100 Series User Manual page 325

The Zero Point Offset (setting parameter OL
dinate system zero point is changed during machine operation, the current position may become inaccurate.
The meaning of setting parameter OL
• Finite Length Axis
Set OL 48 to the difference between IL
rent position of the machine coordinate system the zero position.
IL 10 = 10,000 and OL
EXAMPLE
Setting the current position of the machine coordinate system to 0.
100 − 10000 = −9900
IL 10:
(3) Setting the Zero Point for a Finite Length Axis
Set the zero point after initializing the absolute encoder to set the zero point of the machine coordinate system
and to establish the machine coordinate system.
The following illustration shows the procedure for setting the zero point for a finite length axis.
* 1. The OL
* 2. See the information on the next page for more details on saving the OL
* 3. Execute with the ZSET command.
48) is always valid for a finite length axis. If the machine coor-
48 will differ for a finite length axis and infinite length axis.
48 = 100
Set OL
Target Position (CPOS)
Start
Servo ON
JOG to move close to
the zero point.
STEP to move to the
zero point.
OL 48 = OL 48 - IL
* 2
Save OL 48
* 3
Set the zero point.
Has the setting for the required
axis been completed?
YES
End
48 value must be saved when it is set.
48 and OL 10 (IL 48 – OL
48 to −9,900
Repeat for every axis.
* 1
10
NO
10.3 Using an Absolute Encoder
10) to make the cur-
48 value.
10
10-13