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TONiC T3x3x readhead installation drawing
Dimensions and tolerances in mm
2 holes M2.5 through,
counterbored Ø3 x 2.75 deep
from alternative mounting face
Reference mark selector magnet
P limit magnet
Selected IN-TRAC
reference mark
™
Reference mark selector sensor position
R > 20 dynamic bend radius
R > 10 static bend radius
4
5
1
Extent of mounting faces.
2
The dynamic bend radius is not applicable for UHV cables. UHV cables are for static use only.
3
The UHV cable diameter is approximately 3 mm.
4
Dimension from substrate.
5
The recommended thread engagement is 5 mm minimum (7.5 mm including counterbore) and the recommended tightening torque is 0.25 Nm to 0.4 Nm.
Original instructions
18
31
16
3
7.8
7.8
3
22
29
Optical centreline (incremental and reference mark)
6 minimum
2
35
23
11.5
Optical centreline marker
Forward direction of the readhead
relative to the scale
(Yaw tolerance ±0.4°)
0.25
Offset 2.75 ±0.5
Q limit magnet
Recommended mounting faces
P and Q limit switch sensor position
Set-up LED
CAL/AGC LED
2 mounting holes M2.5 through,
counterbored Ø3 x 2.3 deep both sides
A
(Pitch tolerance ±1°)
0.6
(Roll tolerance ±0.5°)
0.08
13.5
11
Alternative mounting face
Detail A
Scale reading surface
Scale thickness 0.4
5
(including adhesive)
Rideheight 2.1 ±0.15
www.renishaw.com
1
8.75
1
4.25
4.15
10
23
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