
VIONiC RTLC20-S installation guide
3
Dimensions and tolerances in mm
VIONiC readhead installation drawing
*
Extent of mounting face.
†
Dimension from substrate surface.
Forward direction of
readhead relative to scale
R > 30 Dynamic bend radius
R > 10 Static bend radius
Ø4.25
±0.2
5
Set-up LED
Optical centreline marker
A
0.6
35
23
11.5
6
min
18
7.8
7.8
Reference mark selector
sensor position
P and Q limit switch
sensor position
Selected
IN-TRAC
™
reference mark
0.08
(Roll tol. ±0.5°)
13.5
4.25
4.15
10
8.75
*
Offset 2.75 ±0.5
0.25
29
Detail A
Scale reading surface
5
†
Mounting faces
Scale thickness 0.4
(including adhesive)
P limit magnet
Reference mark
selector magnet
Q limit magnet
Optical centreline
(incremental and reference mark)
(Yaw tol. ±0.4°)
Rideheight: 2.1 ±0.15
(Pitch tol. ±1°)
2 mounting holes M2.5 through,
counterbored Ø3 × 2.3 deep both sides.
NOTE:
The recommended thread
engagement is 5 min (7.5 including
counterbore) and the recommended
tightening torque is between
0.25 and 0.4 Nm.