BS78
(E)
5
3. Mounting and Adjustment
Follow the procedure below. (For details refer to the corresponding pages.)
3-1. Mounting Surface Preparations ........................................................................................................... 5
3-2. Scale Mounting .................................................................................................................................... 8
3-3. Detector Head Mounting ................................................................................................................... 12
3-4. Signal Adjustment ............................................................................................................................. 13
3-4-1. Signal Adjustment Preparations ............................................................................................. 13
3-4-2. Azimuth Adjustment .............................................................................................................. 14
3-5. Completion of Mounting and Adjustment ......................................................................................... 15
3-1. Mounting Surface Preparations
1.
Check the mounting surface range (the shaded sections in the figure) and accuracy.
2.
Check the accuracy of the mounting screw coordinates.
3.
The BS78-N/NS has been designed for mounting on either side. The dimensions shown in parentheses
in the figure below illustrate the case when right-protruding cables are used. Contact Magnescale
Co., Ltd. for information about the R/RS type.
Scale mounting surface
Roughness (Rmax)
6.3S/250
µ
inch
Flatness
0.01 mm/0.00039" or less
Parallelism to machine travel
0.01 mm/0.00039" or less
Detector head mounting
Roughness (Rmax)
12.5S/500
µ
inch
surface
Parallelism to machine travel
0.03 mm/0.00118" or less
BS78-10N/NS
Fig. 3-1
Unit: mm (inch)
Note: “M” refers to the machine guide.
31.5
(1.24")
Scale mounting surface
Rmax = 6.3S (250
µ
inch)
Rmax = 12.5S (500
µ
inch)
10.4
±
0.2
(0.409"
±
0.008")
10
9.8
±
0.2 (20.7
±
0.2)
(0.386"
±
0.008" (0.815"
±
0.008"))
47 (1.850")
10
(0.394
"
)
8
±
0.1
(0.315
"
±
0.004
"
)
Reference
16
(0.63
"
)
38
±
0.2
(1.496
"
±
0.008
"
)
A
0.03 (0.0018")
M
0.01 (0.00039")
0.01 (0.00039")
3.5
0
−
0.5
4-M3 depth: 6
(0.24
"
)
Detector head mounting surface
Detector head
mounting surface
Scale
mounting
surface
(0.394
"
)
(0.138
"
0"
−
0.02"
)
