Yaskawa MP920 User's Manual Design - Manual (Page 465)

10 Absolute Position Detection
10.3.2 Infinite Length Mode Axis
10-20
„ Setting the Zero Point for an Infinite Length Mode Axis
Execute the ZSET motion command (zero point setting).
The system will check pulse position at power OFF, encoder position at power OFF, and all
position data when the zero point is set.
The following illustration shows the procedure for setting the zero point for an Infinite
Length Mode Axis.
* 1. With an Infinite Length Mode Axis, the setting parameter OL††06:
Zero Point Offset is only enabled when the ZSET command is exe-
cuted. Therefore, the OL††06 value must be set at the M register.
Set the desired coordinates at Zero Point Offset (OL††06) when
using an Infinite Length Mode Axis.
Example:
When setting the current stop position to 0 (zero point position for the
machine coordinate system)
0
→ OL††06
* 2. Execute with the ZSET command.
YES
NO
Start
Servo ON
JOG to move close to the
zero point.
STEP to move to the
zero point.
Has the setting for the required
axis been completed?
Set the desired position at OL 06. *1
Set the zero point. *2
Repeat for every axis.
End