SINO SDS6, Руководство по эксплуатации, Страница: 21 / 117

A. Basic Function
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3. Finding the function of the mechanical origin
If there is power off when the raster ruler is moving, or the rater ruler is
moved before the power is on, after re-start, the mechanical origin needs to be
found again. Because of movement in power off or before power on, the
coordinate origin of the machine tool can not match the value in the digit display
meter. If the mechanical origin is not found, the misplaced relationship is brought
into the later user coordinate system. As when calculating the user coordinate, the
Segmented compensation value is found according to the wrong mechanical
coordinate, thus there is big error of the displayed coordinate.
The method of finding mechanical origin is as follows:
1.Move the raster ruler to the position which is initially set up as the
mechanical origin, and then set up Segmented compensation. Press
Choosing the FIND_ZE function, then press choosing current position as
origin. When the absolute zero is found, it is the mechanical origin. The interior
of digit display meter handles automatically. At this time, directly press
key to quit the Segmented compensation setup, and finish finding the
mechanical origin.(Remarks: It is applicable to setting up parameters according
to sketch map 1)
2.Firstly move the raster ruler to the smallest value, and then set up
Segmented compensation. Press Choosing the FIND_ZE function, Enter
into the interface for choosing compensation method, press ,to enter
X axis to find the status of absolute zero. Move the raster ruler towards the
positive direction. When the absolute zero is found, it is the mechanical origin.
The interior of digit display meter handles automatically. At this time, directly
press key to quit the Segmented compensation setup, and finish finding the
mechanical origin.(Remarks: It is applicable to setting up parameters according
to sketch map 2)
Note: When find the mechanical origin, the user-coordinate will resume.
Advise: find the mechanical origin before start work after power on to
assure the coordinate origin of the machine tool can match the value in the
digit display meter.
11. Linear Error Compensation
The linear error compensation function is used to make the linear correction
of the system error of the grating metering system.
Correction factor S =(L-L')/(L/1000) mm/m
L---the actually metered length (mm)