Acu-Rite 516353-21 Automobile Accessories User Manual
Contents
1. N Do not remove shipping brackets until instructed Shipping bracket spacers can be used to insure 059 gap Mount from either side to obtain desired cable exit direction d 2 X DLE fi EE EE E e arte Equal 7 Equal Si Tolerances of 005 TIR apply to all mounting dimensions Center support surface required for all measuring lengths when not using a back up spar Shipping bracket removal clearance Total head travel 26 6 6 l Min Min Slide brackets away l from the reading head Measuring length 1 25 4 over travel Allow clearance for shipping bracket removal limit equipment travel to less than measuring length 3 Acu Rite Companies Inc Linear Encoder Dimensions Measuring length 4 65 118 335 7 11 we length 4 09 103 je casen 8 51 Typ Scale case Scale assembly Mauatina hale End cap Reading head for M4 Strain relief 30 4 16 140 assembly tes Hex nut and cable 7 6 41 3 55 463 1 85 Armor Vinyl 11 76 47 00 2 0 501A pprox 175 4 57 2 775 160 min bend radius Typ 70 50 4 00 min oT ANMO 280 7 11 2 350 295 E 159 7 50 M3 x 25 6 31 3 50 l deep min 15099 Typ Acu Rite Companies Inc 4 SENC 50 482 2 12 25 17 d Gap 059 005 1 50 1 182 30 00 GN Align both surfaces SENC 50 Spar Dimensions Backup spar Linear Encoder L A X No Backup spar Linear Encoder L A X No Part N2. Inc linear encoder or readout 1s found to be at fault prior to removing the linear encoders or readout contact your Authorized Distributor or OEM OEI for repair instructions SENC 50 Mechanical Specifications Umedtn Om um Sm EE reading head Operating Environment Temperature 0 to 50 C Relative Humidity 20 to 95 non condensing Storage Environment Temperature 20 to 70 C Humidity 20 to 95 non condensing 1 1 0 2 lbs ft of measuring length 64g 5 6g in Connecting cable Length 5 13 and 19 ft Length 5 13 and 19 ft armored or vinyl Connector DE 9P Connector DE 9P Measuring lengths 1 20 Reference pulse interval 50mm fixed or Position Trac Repeatability Within one resolution count Operating curent ma Protection IEC 529 IP 53 when installed as per instruction 1 3 Acu Rite Companies Inc Output Signals and Pin Outs SENC 50 Digital Differential E INNNMNR NL 3E N C Channel Channel Channel Channel Ground Nec 9l Channel Channel At A B B 0 1 VDC R R Analog Differential ee Paa Pns Pe Par Pme Pi White wiGm Stipe amp Brown Gre Yelow Orange Rea NX Bak Bue vier Vec 5 0 Channel Channel 0 1 VDC R R Ground Channel Channel Channel Channel AT A B B Acu Rite Companies Inc 1 4 S ENC 50 Electrical Specifications Parameter JD leg Output Signals I High level output current
3. using the same tolerances P d ZS fi 8 and larger End mounting holes with center support End mounting holes lt gt 1b 7 and smaller End mounting holes with encoder mounted to a continuous flat surface or with center surface on same plane as end mounting surfaces Acu Rite Companies Inc 6 Tvpical mountin SENC 50 A variety of mounting conditions can be accommodated Spar mounting Mechanical configuration of the equipment determines brackets and adapters required to install the linear encoder Three typical conditions are shown for reference Flush or offset mounting surfaces using a spar Reading head mounting bracket required bottom mounting bracket example shown Flush mounting surfaces Offset mounting surfaces Mounting surfaces are flush within 005 Installation without a backup spar Offset mounting surfaces using a reading head bracket 7 Acu Rite Companies Inc Encoder Installation Procedure SENC 50 These steps apply to all mounting conditions Although this l l may not pictorially represent your application your installation Center mounting axis procedure should follow these steps IN Acu Rite Companies Inc Bracket Kit instructions supercede this section General steps for small X amp Y stage Adjust drill depths and fastener lengths as required Contact your Authorized Distributor if assistance 1s required Mark center of ax
4. SENC 50 Tull al De ELS 0593 05 ee SET e Le E i en REFERENCE MANUAL Acu Rite Companies Inc SENC 50 Table of Contents Page Page Introduction Supplied items eee 2 Checking the Installation eee 10 Electrical Shielding eee 11 Key Points Tolerances cccccecccesecceseccessceeeceeeeceeeeceeeecees 9 Troubleshooting eendeitege 12 Linear Encoder Dimensions eee 4 Mechanical Specifications eese eene 19 Spar Dimensions E 5 Output Signals and Pin Outs eee 14 Electrical Specifications oeste trot Erb petra p soar o hk s xo rHb EY rere ereuets 15 Mounting Reourements Henne 6 Typical Mounting eese nennen 7 The Acu Rite Companies Inc Encoder Installation Procedure eeeeeee 8 Hassle Free Warranty amp Service esssssscrescerercrerrrrerrrerrees 16 Adjustable front or rear mount Front mount Bottom mount Base mount bracket nstallation brackets and kits are available Your Authorized Distributor can assist you in selecting brackets and tools for your installation 1 Acu Rite Companies Inc Introduction Supplied Items SENC 50 The SENC 50 Precision Glass Scale Linear Encoder provides the accuracy and reliability of an Acu Rite Companies Inc measuring system in a very small cross section with digital output analog output available Features and options include Resolutions of 0 5 1 0 or 5
5. Z0mA Vou High level output voltage 22 5Vdc 0 360 1 Channel A 1 o hong R SCH Channel B Channel A Channel A 1 U L1 cama R ae i d 8 Channel B 1 S Count 0 Phased 1 OU U 0 I Low level output current 20mA V XLow level output voltage lt 0 6Vdc 0 90 Channel B Incremental signals Square wave voltage signals Similar phasing but differential Channels A and B in 90 sinusoidal current or 1 volt peak to peak output quadrature relationship 7 16pA or 1 0 V Signal levels TTL level w 1K Ohm load Reference Mark signals Square wave signal Differential current or 1 volt peak to peak output Signal level TTL level 2 8pA or 12V w 100 K Ohm load Power Supply 5 1 0 1VDC 220 mA max 5 0 x 0 IVDC 9 75 mA max 1 5 Acu Rite Companies Inc Acu Rite Companies Inc Warranty SENC 50 ACU RITE Companies Inc 1s proud to offer the 3 Year Hassle Free Warranty for all readout systems and precision glass scales This warranty will cover all of the ACU RITE repair and replacement costs for any readout or precision glass scale returned during the three 3 year warranty period ACU RITE will repair or replace the damaged components regardless of the product s condition absolutely free no questions asked This warranty covers both materials and factory labor In addition authorized ACU RITE service representatives will provide service labor field service for a period of one 1 y
6. e reading head mounting holes Move the axis and drill tap holes for 6 32 M3 Attach head and align to scale case to within 005 TIR Slide bracket from reading head and twist 45 Shipping bracket 2 Slide shipping brackets from reading head and twist to remove from the scale case Save the shipping brackets with the Reference Manual Acu Rite Companies Inc Checking the Installation SENC 50 Connecting These steps will confirm proper operation of your installation Counting tests check channel A and B output function and Reference Mark tests check Reference Mark operation Provide slack loops Configure the readout for proper counting resolution Move axis and compare the display to the movement Repeat test for mechanical integrity and repeatability Configure the readout for sensing reference mark LY Move the reading head approximately 20mm Secure excess Locate an indicator on scale end and zero out axis and cable indicator Move axis out and back over full travel and return to dial Route the cables with slack loops to allow for axis motion Zero Secure excess cable by fastening with clips or ties Electronics should read zero 1 count Attach the linear encoder connectors to the readout Counting Test i Place indicator at end of d moving component scale case Shown or reading head Eege eadou EN Repeatability Test Readout m Zero the display and indicat
7. ear at no charge Notice of the claimed defect must be received by ACU RITE within the warranty period This warranty applies only to products and accessories installed and operated in accordance with this reference manual ACU RITE shall have no obligation with respect to any defect or other condition caused in whole or part by the customer s incorrect use improper maintenance modification of the equipment or by the repair or maintenance of the product by any person except those deemed qualified by ACU RITE Responsibility for loss of operation or diminished performance due to conditions beyond ACU RITE s control cannot be accepted by ACU RITE The foregoing warranty obligations are in lieu of all expressed or implied warranties ACU RITE Companies Inc shall not be lable under any circumstances for consequential damages Acu Rite Companies Inc 1 6 Acu Rite Companies Inc IS AN ISO 9001 CERTIFIED MANUFACTURER Acu Rite Companies Inc C One Precision Way Jamestown NY 14701 516353 21 VeO1 8 2009
8. is Center the axis Mark the axis for easy return to center Keep head and Underside of end caps to be Align top of scale case to Scale case scale case flush with parting line of within 015 of axis travel surfaces flush upper slide Scale case AL Ww F QO o Je IT Ii End cap Mark end mounting hole location Shipping Strain relief brackets 2 Reading head and ud cable assembly Center the reading head on the scale case by sliding the head Locate the linear encoder along the axis parting line and shipping brackets together along the scale case Mark location of one end mounting hole in the scale case Acu Rite Companies Inc 8 SENC 50 Axis 005 travel Drill tap for 6 32 M3 6 32 x 3 4 SHCS amp M3 flat washer M3 x 20mm Drill tap the first end mounting hole Attach the scale case Align to within 005 TIR and drill tap second end hole Attach scale case amp align to within 005 TIR of the axis travel yy Guil AP 6 32 x 3 4 SHCS amp M3 flat washer fe M3 x 20mm Gi de E e Retaining clip Center support Use center supports when provided Place at uniform intervals along the scale case Align to within to axis travel Installation Procedure Drill tap for 6 32 M3 Use shipping brackets to maintain 059 gap between head and scale case 6 32 x 3 4 SHCS amp M3 flat washer M3 x 20mm Center the axis and mark th
9. o be the cause perform the next step Checking the Linear Encoders Linear encoder difficulties can be caused by improper installation loose or misaligned bracketry or a damaged failed linear encoder Follow the steps below to determine the cause of your system difficulties Confirm that your bracketry and installation does not interfere Acu Rite Companies Inc with other machine structures through the length of the linear encoder travel Check for loose fasteners If you find loose fasteners first confirm that the linear encoder is installed to the tolerances specified and then retighten the fasteners as required Confirm that the linear encoder is installed to the required tolerances by checking the alignment tolerances specified on Page 3 Key Points If the installation does not meet the tolerances reinstall the linear encoder according to the procedures in Installation Perform a Repeatability Test as described on Page 10 Checking Your Installation If the linear encoder is installed to the required tolerances the bracketry and linear encoder have been checked for interferences and loose fasteners and the linear encoder fails the repeatability test the linear encoder is likely at fault Do not attempt to repair the linear encoder The units are only serviceable by assembly replacement Attempted repair can permanently damage the unit and void the warranty What to do If an Acu Rite Companies
10. or Move axis to the end of it s travel then return to dial zero Check function of the linear encoder Readout should read zero 1 count Acu Rite Companies Inc 1 0 SENC 50 Electrical Shieldin Connect a ground wire from the terminal on the back of the readout to the machine or earth ground Attach a ground wire from the machine to a solid earth ground With the encoder attached to the machine and the cable connected to the readout check shielding by measuring resistance between connector housing and scale unit Desired value 1 O max 11 Acu Rite Companies Inc Trouble Shooting SENC 50 If you experience difficulties with your installation there are methods to analyze the difficulty Operating difficulties can be caused by either the linear encoders or the readout Checking the readout Follow the steps below to determine if your difficulties are associated with the readout nsure that the linear encoder connectors are correctly seated Swap linear encoder cables at the readout to see if the problem is still shown in the same display If the problem remains in the same display the readout is in error If the problem follows the connection change the linear encoder may be in error Follow this procedure for any intermittent problem experienced If the readout 1s at fault refer to What to do to arrange for the parts necessary to repair your system If the linear encoders appear t
11. um Accuracy grades of 3 or 5 um 1000mm Position Trac or 50mm interval Reference Mark Vinyl or Armor cables of 5 138 amp 19 ft lengths Mounting fasteners center supports and backup spar Installation tools brackets and accessories The SENC 50 is especially useful for applications with limited space such as X Y stages and compact metrology equipment Contact your Authorized Distributor for assistance with selection of product options and accessories Shipping carton contents Acu Rite Companies Inc For future ordering information or warranty service record the linear encoder catalog and serial numbers Catalog Serial Manufacture Code Axis 1 Axis 2 Axis 3 Axis 4 Date of Purchase Distributor Address Telephone A SENC 50 linear encoder B Reference Manual C Encoder and Cable Mounting Hardware SENC 50 e Points Tolerances Use this information to plan your Linear Encoder installation Understand your mounting requirements Talo TL TIT i AL Follow kit instructions when using an Acu Rite Companies E AG M D Inc bracket kit l l a Mount encoders close to ways to insure system accuracy Machine travel ma o Mount with lip seals down and away from the work area Center support surface 1 50 Brackets should be short and rigid Reading head EE Scale assembly Surfaces must be in good condition clean and free of assembly Se SC dirt and paint
12. umber Measuring Length Places Part Number Measuring Length Places 5 650 680803 10 5 000 680803 01 1 680803 02 6 650 5 000 680803 11 15 650 2 825 5 000 680803 03 7 650 1 325 5 000 680803 12 16 650 3 325 5 000 680803 04 8 650 1 825 5 000 680803 13 17 650 3 825 5 000 680803 05 9 650 2 325 5 000 680803 14 18 650 1 825 5 000 680803 06 10 650 2 825 5 000 680803 15 19 650 2 325 5 000 680803 07 7 11 650 3 325 5 000 680803 16 20 650 2 825 5 000 680803 08 12 650 3 825 5 000 680803 18 22 650 1 325 10 000 680803 09 13 650 1 825 5 000 680803 20 20 24 650 2 325 10 000 Spar ssi fastener retaining clip c Spar leveling d i e a screws ae Backup spar mounting optional for all lengths 196 Drill thru A B Clip mounting 075 344 Chore x 100 Dp screws X no of places i330 7 Backup spar 510 mounting H i A B Typ 005 9888 005 Non accumulative 5 Acu Rite Companies Inc Mounting Requirements Mounting options can be adapted to machine mounting surfaces Center support using spacers standoffs and leveling screws PP assembly Measuring length and mechanical configuration of your equipment determines your options Length related mounting options shown When a backup spar 1s used mount the backup spar following the same procedure as required for mounting without a backup spar
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