M800S/M80/E80 Series Connection and Setup Manual
22 Setting the Position Detection System
477
IB-1501269-J
Reference position return direction (#2030 dir (-))
The direction of the (axis) movement, after the dog-type reference position return is executed and the limit switch kicks
the dog and decelerate to stop, is set to either positive "0" or negative "1".
Set "0" if the reference position is in the positive direction from the near-point dog.
Set "1" if the reference position is in the negative direction from the near-point dog.
Axis with no reference position (#2031 noref)
Set the axis to carry out dog-type reference position return and the axis for absolute position detection to "0".
Set the axis without carrying out reference position return during the relative position detection 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 "0" is set, the reference position will be the position of the basic machine coordinate system zero point.
In "G53ofs" 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.
Selection of 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 positive (+)
When reference position return direction is negative (-)
Movement in (+)
direction
Movement in (-)
direction
Movement in (+)
direction
Movement in (-)
direction
Dog
Dog
Reference position
Reference position
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