Renishaw Vionic RTLC20/FASTRACK, Руководство по установке, Страница: 6 / 16

VIONiC RTLC20/ FASTRACK installation guide 4
*
Assumes 1 mm gap between scale and end covers and zero gap between FASTRACK carrier and end covers. † Dimension from FASTRACK carrier surface. ‡ For alternative mechanical datum clamp methods see page 6 .
NOTES: Minimum recommended FASTRACK carrier length = 100 mm. The reference mark selector and limit actuator locations are correct for the readhead orientation shown.
External magnetic fields greater than 6 mT, in the vicinity of the readhead, may cause false activation of the limit and reference sensors.
RTLC20/ FASTRACK carrier installation drawing
P and Q limit
switch sensor
position
RTLC20 scale
FASTRACK
Reference mark selector magnet
(A-9653-0143)
(Dimensions as P limit)
Ra 3.2
Q limit magnet
(A-9653-0139)
(Dimensions as P limit)
1.5
†
Optional end cover
(Pair A-9589-0058)
18
5
B
A
Do not cut FASTRACK
carrier over shaded areas
18 ±0.1
15 ±1
P limit magnet
(A-9653-0138)
35 max
Overall length (L + 12)
Scale length (L)
Measuring length ML = (L − 10) (ML = (L − 25) with dual limits)
10 max (gap)
VIONiC readhead
9.2
3.7
10
15
1 min (gap)
Detail B
Optical centreline
(incremental and reference mark)
Detail A
NOTE: When the FASTRACK
carrier reference mark and
adhesive datum are aligned as
shown, reference output will
be positionally repeatable with
respect to substrate.
0.1/100
0.5
F
F = axis of motion
0.05 F
F = axis of motion
FASTRACK carrier length = (L − 24)
*
Nominal P limit
trigger point
Nominal Q limit
trigger point
Dimensions and tolerances in mm
2 locations for spots
of Loctite ® 435 ™
(P-AD03-0012) to secure
axis datum position
‡
(adhesive datum clamp ‡ )