RBS-T Linear Encoder Installation Manual and Owner’s Guide
P/N 70000426
Page 12 of 43
All rights reserved. Subject to change without notice.
03-Nov-98
Installing and Aligning Y Axis Encoder
Forward mounting screw
installed in predrilled #8-32
mounting hole.
Mark mounting hole
locations with punch
Encoder
Backer Bar
IND-TOP
Plastic Reader Head
Alignment Brackets
RBS-5
S/N 010
P/N
M.Length
-0034567
20501048
1200 mm
F05
S/N 010 -0034567
F 02
5V
RBS-5
T
Figure 8, Aligning the Encoder
1. Before installing the encoder, remove both end caps and visually check the
alignment of the reader head. Verify that the reader head is centered within the
housing and is not twisted in any way. Do not reinstall the end caps at this time.
2. Break loose the two screws holding the reader head alignment brackets to the
reader head. Retighten only enough to keep the brackets in place. The reader
head alignment brackets must be installed to align the reader head. They will be
removed at the end of the procedure.
3. Refer to
Figure 8, Aligning the Encoder
. Place the encoder against the backer bar
and install the forward #8-32 mounting screw.
NOTE:
On 12” and 16” installations the forward mounting screw will usually support the
encoder long enough to locate the undrilled mounting holes. When installing a long
encoder, mark and drill the first mounting hole near the center of the encoder. This will
help balance the weight of the encoder while the holes are being located.
4. Mount a magnetic indicator on the saddle so the indicator probe measures the
position of the top of the encoder.
5. Move the saddle through its full range of travel and observe the indicator. The top of
the encoder should be parallel to the Y axis movement of the saddle (within 0.002”)
along its entire length. Use a transfer punch to mark the remaining holes.
6. Drill and tap the remaining #8-32 mounting holes.
7. Install the encoder using the #8-32 screws provided. Tighten the screws just
enough to hold the encoder in place.
8. Re-align the encoder. Using a torque wrench, tighten the screws to 24 in-lbs. Do
not overtighten the screws.
NOTE:
If the encoder is not properly aligned the reader head will not read correctly.
9. Recheck the alignment.
Содержание RBS-T
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