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RBS-T Linear Encoder Installation Manual and Owner’s Guide

P/N 70000426

All rights reserved.  Subject to change without notice.

Page 37 of 43

03-Nov-98

Encoder Replacement Parts

Occasionally a runaway machine overextends its range of travel.  This, in turn, causes the
reader head to break through the encoder end cap.  If the glass inside the encoder is not
broken the encoder can be reused.  No attempt should be made to force a damaged reader
head back on the glass after an accident.  Doing so may break the glass.  The reader head and
encoder end cap must usually be replaced after this type of accident.

The encoder reader head (with cable attached) and the encoder end caps are available as
replacement parts.  Refer to 

Table 3

.

NOTE:  An ANILAM Service Technician should be consulted before replacing the reader head
because of a suspected electrical fault.

Table 3,  Reader Head Replacements

Replacement Reader Head & Cable Assembly

ANILAM Part Number

1 Micron Reader Head - 4 Meter Cable

19020135

1 Micron Reader Head - 6 Meter Cable

19020136

5 Micron Reader Head - 4 Meter Cable

19020137

5 Micron Reader Head - 6 Meter Cable

19020138

NOTE:  Reader heads with custom cable lengths are available as special order items.

Summary of Contents for RBS-T

Page 1: ...www anilam com...

Page 2: ...null and void Under no circumstances will ANILAM any affiliate or related company assume any liability for loss of use or for any direct or consequential damages The foregoing warranties are in lieu o...

Page 3: ...Machines 16 X Axis Installation Front Side of Table Lagun and Bridgeport Type Machines 19 Lathe Installations 23 Cross Slide X Axis Installation 23 Z Axis Installation 27 EDM Installations 33 Optical...

Page 4: ...rks will interpret the absolute reference marks as reference marks approximately every 0 5 in 12 70 mm The RBS T linear encoders are shipped pre assembled and come with a mounting kit suitable for mos...

Page 5: ...rating Pitch 0 02 mm Storage Temp 20 70 C Resolution 0 005 mm 0 001 mm Operating Humidity 5 95 relative humidity Accuracy 005 mm m or 01 mm m Storage Humidity 5 95 relative humidity Repeatability 1 4...

Page 6: ...0 mm 20505016 18 450 mm 20501018 18 450 mm 20505018 20 500 mm 20501020 20 500 mm 20505020 24 600 mm 20501024 24 600 mm 20505024 26 650 mm 20501026 26 650 mm 20505026 27 675 mm 20501027 30 750 mm 20505...

Page 7: ...can break Do not drop the encoder Do not use a hammer on the encoder This document describes typical installations Custom installations may require a different arrangement of mounting brackets The fo...

Page 8: ...lash shield to the encoder In all cases the encoder should be installed with the lip seal and reader head down and away from a direct spray of coolant and chips Inventory the parts in each installatio...

Page 9: ...perly oriented the elongated slots are near the top and the predrilled 8 32 hole is away from the column If the mounting screws are difficult to thread in chase the threads with a tap Tighten the scre...

Page 10: ...ing 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 e...

Page 11: ...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 Recheck the alignment Mounting and Ali...

Page 12: ...ad mounting bracket The reader head must stay aligned with the encoder body The jack screws hold the reader head away from the reader head mounting bracket when the mounting screws are tightened 3 Ref...

Page 13: ...the mounting screws are tightened 6 Remove the plastic alignment brackets from the reader head NOTE Save the plastic alignment brackets If the encoder is ever removed from the machine it cannot be re...

Page 14: ...from the reader head mounting bracket see Figure 9 Vertical Block and Reader Head Bracket Installation 4 Temporarily install the reader head mounting brackets and hold the encoder against the backer...

Page 15: ...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 sup...

Page 16: ...r head mounting brackets so that the reader head mounting screw holes are aligned 3 Tighten the hardware holding the vertical block and the reader head bracket to the saddle CAUTION Do not use the rea...

Page 17: ...any rectangular pattern of screws Ensure that none of the jack screws are positioned over a cavity or screw head Reader Head Mounting Bracket Scale Reader Head Spacer Block Indicator INDYUN Figure 11...

Page 18: ...reader head Reinstall both end caps X Axis Installation Back Side of Table Lagun and Bridgeport Machines No brackets are required to perform an X axis installation on the back side of the table for ei...

Page 19: ...adjust the probe to measure the position of the top of the encoder 7 Slowly move the X axis through its entire range of travel while observing the indicator The top of the encoder should be parallel...

Page 20: ...two mounting screws to 24 in lbs Tightening the reader head mounting screws should pull the reader head back against the jack screws taking out the 0 004 and restoring its original position If the rea...

Page 21: ...olt and remove the table stop and T bolts from the front surface of the machine table 2 Reuse the hardware from the table stop to loosely bolt the reader head bracket to the saddle 3 Before installing...

Page 22: ...32 X 1 2 mounting holes 10 Place the two nylon self locking nuts in the cavities on the back side of the reader head and mount the encoder using the 8 32 screws provided Tighten the screws just enough...

Page 23: ...the reader head bracket with the reader head and bolt it to the saddle 8 32 Jack Screws 8 32 Reader Head Mounting Screws Reader Head 8 32 Self Locking Nut Lagun Type Reader Head Mounting Bracket Figu...

Page 24: ...rew until it pushes the reader head 0 001 Do this for each of the four jack screws Do not push the reader head more than 0 004 from its original position 4 Using a torque wrench tighten the two mounti...

Page 25: ...ader head in contact with the end caps All custom brackets should be designed so as not to interfere with any machine accessory that may not be in place at the time of installation If possible the enc...

Page 26: ...motion within 0 005 over its full range of travel Add shims the backer bar if required 8 Tighten the backer bar mounting screws 9 Perform a final check of the backer bar s alignment Cross Slide Again...

Page 27: ...der head alignment brackets to the reader head Re tighten only enough to keep the brackets in place They will be removed at the end of the procedure 3 Place the encoder against the backer bar and inst...

Page 28: ...rallel to cross slide movement along the top and front face The reader head bracket should be mounted to within 1 4 of the reader head CAUTION The reader head mounting bracket and any additional mount...

Page 29: ...ld be about 0 004 away from its original position 4 Using a torque wrench tighten the two mounting screws to 24 in lbs Tightening the reader head mounting screws should pull the reader head back again...

Page 30: ...ws The backer bar is supported away from the lathe bed on the jack screws The backer bar mounting bolts oppose the jack screws and hold the backer bar against lathe bed When properly installed the fac...

Page 31: ...Mount Positioning Refer to Figure 21 The backer bar is properly oriented when the mounting bolt counterbore is away from the machine and the pre drilled 8 32 screw is above the backer bar centerline...

Page 32: ...r 13 Recheck the alignment Installing and 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 c...

Page 33: ...ckaged with a spacer block The spacer block must be drilled and bolted to the saddle so the reader head mounting bracket aligns within 1 4 of the reader head The bracket can be positioned in front or...

Page 34: ...eader Head Mounting Screws 6 32 Jack Screws UNIVRDHD Figure 23 Reader Head Installation Hardware 3 Refer to Figure 23 Start the 8 32 reader head mounting screws but do not tighten If the reader head m...

Page 35: ...e reader head Continue turning the jack screw until it pushes the reader head 0 001 Do this for each of the four jack screws The reader head should be about 0 004 away from its original position 5 Usi...

Page 36: ...installation The alignment specifications of all RBS T encoders and reader heads are the same regardless of the type equipment on which it is installed Optical Comparator Installations The XY axes of...

Page 37: ...hed by any moving parts Do not drape the cable across open spaces any more than necessary Avoid putting any sharp bends or kinks in the cable CAUTION Be sure sufficient slack is left in the cables to...

Page 38: ...bris on the glass can cause the reader head to misread the markings Clean the glass inside the encoder as follows CAUTION Never insert any metal object or into the encoder body Never attempt to use an...

Page 39: ...ead mounting bracket and or reader head loose Faulty reader head Verify encoder and reader head is secure Reinstall plastic alignment brackets and remount if necessary Verify machine gibs are properly...

Page 40: ...the glass The reader head and encoder end cap must usually be replaced after this type of accident The encoder reader head with cable attached and the encoder end caps are available as replacement par...

Page 41: ...reader head alignment brackets using the screws that came with the encoder 3 Remove the reader head mounting bolts head should slide freely along the encoder 4 Remove one encoder end cap 5 Slide read...

Page 42: ...it Parts Lagun X and Y Axis Knee Mill Kit P N 32500073 X Axis Parts Y Axis Parts Orderd Separately Orderd Separately 1 2 3 4 Figure 26 Lagun Type Encoder Mounting Kit Table 4 Lagun Type Encoder Mounti...

Page 43: ...e 03 Nov 98 Bridgeport X and Y Axis Knee Mill Kit P N 32500108 X Axis Parts Y Axis Parts 1 2 3 Figure 27 Bridgeport Type Encoder Mounting Kit Table 5 Bridgeport Type Encoder Mounting Kit Parts Listing...

Page 44: ...notice Page 41 of 43 03 Nov 98 Lathe X Axis Cross Slide Kit P N 32500174 1 2 3 4 Encoder CROSS Figure 28 Lathe Cross Slide Mounting Kit Table 6 Lathe Cross Slide Encoder Mounting Kit Parts Listing It...

Page 45: ...reserved Subject to change without notice 03 Nov 98 Lathe Z Axis Backer Bar Kits 42 60 P N 32500276 65 90 P N 32500275 95 120 P N 32500274 1 Figure 29 Lathe Z Axis Backer Bar Kit Table 7 Lathe Z Axis...

Page 46: ...change without notice Page 43 of 43 03 Nov 98 Universal Reader Head Mounting Kit P N 32500030 1 2 Figure 30 Universal Reader Head Mounting Kit Table 8 Universal Reader Head Bracket Kit Parts Listing I...

Page 47: ...g 38 replacement parts table 37 specifications 2 testing 34 X axis installing and aligning 16 Y axis installing and aligning 7 I installation EDM machines description 33 Lagun and Bridgeport X axis en...

Page 48: ...tion 38 universal installation kits description 43 X axis mounting and aligning 17 21 Y axis alignment 10 Y axis mounting 9 Y axis mounting and aligning 13 replacement parts table 37 S safety informat...

Page 49: ...ut Germany 49 8669 856110 49 8669 850930 info anilam de Italy ANILAM Elettronica s r l 10043 Orbassano Strada Borgaretto 38 Torino Italy 39 011 900 2606 39 011 900 2466 info anilam it Taiwan ANILAM TW...

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