Mitsubishi Electric M800VS Series Connection And Set Up Manual page 494

M800VS/M80V Series Connection and Setup Manual
22 Setting the Position Detection System
22.2 Adjustment of Reference Position Return in Relative Position Detection System
[Reference position return direction (#2030 dir (-))]
This indicates the direction of the (axis) movement after the dog-type reference position return is executed and the limit switch
kicks the dog and decelerates to a stop. Can be set to either positive "0" or negative "1".
Set to "0" if the reference position is in the positive direction from the near-point dog.
Set to "1" if the reference position is in the negative direction from the near-point dog.
When reference position return direction is positive (+)
Movement in (+)
direction
( - )
Dog
[Axis with no reference position (#2031 noref)]
To perform a dog-type reference position return and absolute position detection for the axis, set to "0".
To perform a relative position detection without a reference position return for the axis, set to "1".
[Machine coordinate system offset (#2037 G53ofs)]
Set the amount to shift the basic machine coordinate system zero point position from the reference position.
When set to "0", the reference position will be the basic machine coordinate zero point.
In this parameter, set the position of the reference position looking from the basic machine coordinate system zero point with
the coordinates of basic machine coordinate system. By the reference position return after the power is turned ON, the
machine position will be set and the basic machine coordinate system will be established.
[Grid display type (#1229 set01/bit6)]
Select the grid display type on DRIVE MONITOR screen during dog-type reference position return.
0: Distance from dog OFF to electric zero point (including the grid mask amount)
1: Distance from dog OFF to electric zero point (excluding the grid mask amount)
When reference position return direction is negative (-)
Movement in (+)
Movement in (-)
direction
direction
( - )
(+)
Reference position
Reference position
463
Movement in (-)
direction
(+)
Dog
IB-1501613-A