7 Setting the Position Detection System
MITSUBISHI CNC
120
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 "0" for the axis to carry out dog-type reference position return and the axis for absolute position detection.
Set "1" for the axis without carrying out reference position return during the relative position detection.
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
Summary of Contents for C70
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Page 18: ...1 1 Outline ...
Page 21: ...1 Outline MITSUBISHI CNC 4 ...
Page 22: ...5 2 GOT Initial Setup ...
Page 73: ...2 GOT Initial Setup MITSUBISHI CNC 56 ...
Page 74: ...57 3 PLC CPU Initial Setup ...
Page 91: ...3 PLC CPU Initial Setup MITSUBISHI CNC 74 ...
Page 92: ...75 4 CNC CPU Initial Setup ...
Page 105: ...4 CNC CPU Initial Setup MITSUBISHI CNC 88 ...
Page 106: ...89 5 Connecting and Setting up Multiple CNC CPU Modules ...
Page 115: ...5 Connecting and Setting up Multiple CNC CPU Modules MITSUBISHI CNC 98 ...
Page 116: ...99 6 Setting Machine Parameters ...
Page 130: ...113 7 Setting the Position Detection System ...
Page 153: ...7 Setting the Position Detection System MITSUBISHI CNC 136 ...
Page 154: ...137 8 Deceleration Check ...
Page 159: ...8 Deceleration Check MITSUBISHI CNC 142 ...
Page 160: ...143 9 Setting the Tool Entry Prohibited Range ...
Page 169: ...9 Setting the Tool Entry Prohibited Range MITSUBISHI CNC 152 ...
Page 170: ...153 10 Data Backup and Restoration ...
Page 184: ...167 Appendix 1 Explanation of Parameters ...
Page 435: ...Appendix 1 Explanation of Parameters MITSUBISHI CNC 418 ...
Page 436: ...419 Appendix 2 Explanation of Alarms ...
Page 608: ...591 Appendix 3 Display on 7 segment LED ...
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