Grspc; Dir (-); Noref - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
16 Machine Parameters
#2029

grspc

Set the distance between grids.
Generally, set up the value equal to the ball screw pitch. However, if the detector grid interval is not equal to
the screw pitch when measured with a linear scale, set up the detector grid interval.
To make the grid space smaller, set a divisor of the grid space.
This is not used for the distance-coded reference position detection.
(Note) Set the grid interval "#2029 grspc" according to the reference encoder for grid interval "#2041 grsp-
cref".
(1) Semi-closed loop control
If "#2041 grspcref" is set to "0" (grid interval by the motor-end), set "#2029 grspc" to the same value as
the ball screw pitch.
If "#2041 grspcref" is set to "1" (grid interval by the machine-end), set "#2029 grspc" to the moving
amount calculation value per a motor rotation ("#2201 SV001 PC1" / "#2202 SV002 PC2" x "#2218
SV018 PIT").
(2) Full-closed loop control
If "#2041 grspcref" is set to "1" (grid interval by the machine-end), set "#2029 grspc" to the same value
as the Z phase pitch.
If "#2041 grspcref" is set to "0" (grid interval by the motor-end), set "#2029 grspc" to the moving amount
calculation value per Z phase pitch ("#2202 SV002 PC2" / "#2201 SV001 PC1" x the Z phase pitch of
the machine-end).
* If "#2029 grspc" is set to "0", the ball screw pitch (#2218 SV018 PIT) is used instead of the grid interval.
---Setting range---
0.000 to 999.999 (mm)
(PR) #2030

dir (-)

Select which side of the near-point dog the reference position is established.
For a rotary axis, select a direction that heads to the zero point from the intermediate point during automatic
zero point return.
0: Positive direction
1: Negative direction
Directions in which reference position is established as viewed from the near-point dog
#2031

noref

Select whether the reference position is provided for the axis.
0: Reference position is provided. (Normal controlled axis)
1: No reference position is provided.
When "1" is set, reference position return is not required before automatic operation starts.
IB-1501279-H
- direction
Grid
Near-point dog
- direction
Reference position
Near-point dog
506
Grid interval
Reference position direction (-)
+ direction
Reference position
+ direction
Grid
Axis without reference position