
4.REFERENCE POSITION ESTABLISHMENT B-63943EN-1/02
- 530 -
#7 #6 #5 #4 #3 #2 #1 #0
1819 DATx
[Input type] Parameter input
[Data type]
Bit axis
# 2 DATx When a manual reference point return is executed, an automatic
setting of
parameter No.1883,1884 is
0 : Not executed.
1 : Executed.
The procedure of the automatic setting are following :
(1) Set a correct value to parameter No.1815,1821,1882.
(2) Positioning the axis to reference position by mechanical
measurement by manual operation.
(3) Set parameter No.1819#2 to '1'.
(4) Execute manual reference point return.
When the manual reference point return is finished, parameter
No.1883,1884 are set and No.1819#2 is turn to '0'.
1883 Distance between scale zero and reference position (1)
NOTE
When this parameter is set, the power must be
turned off before operation is continued.
[Input type] Parameter input
[Data type] 2-word axis
[Unit of data] Detection unit
[Valid data range] -999999999 to 999999999
1884 Distance between scale zero and reference position (2)
NOTE
When this parameter is set, the power must be
turned off before operation is continued.
[Input type] Parameter input
[Data type] 2-word axis
[Unit of data] Detection unit
[Valid data range] -999 to 999
Parameter No. 1883 and No. 1884 are used to set the distance from the
scale zero point to the reference position on a distance coded linear
scale interface or a linear scale with distance-coded reference marks
(serial).
The scale zero point represents a point where mark 1 and mark 2
match. Usually, this point is a virtual point that does not physically
exist on the scale.
The distance from the scale zero point to the reference position is
obtained by the following expression.