Magnescale BS78, Instruction Manual

Page: 62 / 100

22
(E)
BS78
25
±
0.2
25
±
0.2
25
±
0.2
60 (2.362")
N-M4 Scale clamp mounting screw
Detector haed mounting screw 2-M3
×
30
Scale signal detection position
2-M4 Reference plate mounting screw
Reference plate t = 2 (0.079")
Reference hole
Cable length 3000 (9.8 ft)
Spacer t = 2 (0.079")
Scale clamp
50
±
0.3
∗
∗
29.5
(1.161")
∗
6.8
(0.268")
30.5
(1.201")
Ø7
2-Ø5
10 (0.394")
25
(0.984")
16 (0.63")
25
(0.984")
38
(1.496")
42 (1.654")
25 (0.984") 50 (1.969")
60 (2.362")
9 (0.354")
14
(0.551")
3-
Ø
5
45.9 (1.81")
40.5 (1.59")
16 (0.63")
2
N
100 (3.94")
75 (2.953")
100 (3.94")
75 (2.953") 50 (1.969")
L2
10 10
8 6 6
396 (15.60")
L3
L1
66 (2.59")
-
- - - -
BS78-40R (RS)
Model
246 (9.685")
100 (3.94")
75 (2.953")
196 (7.717") 146 (5.748") 446 (17.56")
BS78-120R (RS) BS78-170R (RS) BS78-320R (RS) BS78-370R (RS) BS78-420R (RS)
∗
0.03 (0.00118")A
∗
∗
0.01 (0.00039")
0.01 (0.00039")M
A
25
±
0.2
∗ ∗
∗
Ø4
0
+0.05
Ø4
0
+0.05
4
0
+0.05
L2
±
1 (0.039")
L2
±
1 (0.039")
L3
±
1 (0.039")
L1
±
1 (0.039")
(0.984"
±
0.008")
(0.984"
±
0.008")
(0.984"
±
0.008")
(1.969"
±
0.012")
(0.984"
±
0.008")
25
±
0.2
∗
(0.984"
±
0.008")
46
±
0.3
(1.811"
±
0.012")
Reference point detection position
∗
9.8
±
0.2 (0.386"
±
0.008")
13.1
(0.516")
14 (0.551")
6 (0.236")
4.6 (0.181")
30.5
(1.201")
5 (0.197")
23 (0.906")
5 (0.197")
39.2
±
0.2
(1.543"
±
0.008")
14 (0.551")
3
(0.118")
38
±
0.2 (1.496"
±
0.008")
38
(1.496")
12 (0.472")
5 (0.197")
1.4 (0.055")
13.8
(0.543")
0.4
(0.016")
43.5
(1.713")
32.7
±
0.3
(1.287"
±
0.012")
21
(0.827")
13.3 (0.524")
Scale movement Reference point detection direction
L3
±
1 (0.039")
(0.157"
+
0.002"
)
0
BS78- *** R/RS (measuring length 40/120/170/220/370/420)
Note 1:
The items mar
k
ed b
y an aster
isk indicate the machining dimensions on the mounting surf
ace
.
Note 2:
The surf
ace roughness of the scale mounting surf
ace is Rmax = 6.3 S (250
µ
inch).
Note 3:
The surf
ace roughness of the detector head mounting surf
ace is Rmax = 12.5 S (500
µ
inch).
Note 4:
“M”
ref
ers to the machine guide
.
Note 5:
Ref
erence point detection direction:
Standard (Scale mo
v
ement direction
→
with the head stationar
y)
Unit: mm (inch)