
A-79364E
Title
Draw
No.
Ed. Date Design Description
Date Jan.07.’04 Design. Apprv.
9/13
Page
FANUC Series 30i-MODEL A
Linear scale with distance-coded
reference marks
serial
# 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
Set the distance between scale zero and reference position by parameter
No.1883, 1884.
The scale zero means a point where reference mark 1 and reference mark 2
are equal. Generally, this is a virtual point that exists on the out of scale
stroke.
The actual distance is determined by following formula :
Actual distance = Parameter 1884 * 1,000,000,000 + Parameter 1883