Yaskawa MP940 - Manual (Page 333)

7.3 Using an Absolute Encoder
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7
„ 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 OLC006:
Machine Coordinate System Zero Point Offset is only enabled when
the ZSET command is executed. Therefore, the OLC006 value does
not have to be set at the M register.
Set the desired coordinates at Machine Coordinate System Zero Point
Offset (OLC006) when using an Infinite Length Mode Axis.
Example:
When setting the current stop position to 0 (zero point position for the
machine coordinate system)
∗ 2. Execute with the ZSET command.
0 OLC006
Start
Servo ON
JOG to move close to
the zero point.
STEP to move to the
zero point.
Set the desired position at
OLC006.*1
Set the zero point.*2
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