ACU-RITE SENC 150 Reference Manual
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ACU-RITE SENC 150 Reference Manual

Precision glass scale linear
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SENC 150
REFERENCE MANUAL

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Summary of Contents for ACU-RITE SENC 150

  • Page 1 SENC 150 REFERENCE MANUAL...

  • Page 3: Table Of Contents

    SENC 150 Table of Contents / Warnings Page Introduction / Supplied items ........4 Preparing the mounting / Mounting information ... 5 Encoder dimensions ............. 8 Backup spar dimensions ..........10 Mounting the encoder without backup spar ....11 5.1 Mounting the encoder via end holes ......12 5.2 Mounting the encoder via center support ....

  • Page 4: Introduction / Supplied Items

    1 Introduction / Supplied items SENC 150 The SENC 150 precision glass scale linear encoder provides the Contents ML ≤ 1550 mm (60”) accuracy and reliability of an ACU-RITE measuring system with ® digital output. Features and options include: SENC 150 ...
  • Page 5 SENC 150 2 Preparing the mounting  Mounting surface clean and free of paint.  Protect sealing lips from splash water. Linear encoder F = Machine guideway ** Linear encoder with center support L = Length of backup spar (page 10)

  • Page 6: Preparing The Mounting / Mounting Information

    2 Preparing the mounting / Mounting information SENC 150 Traverse path 11.75 mm (LL x 25.4 + 138.1)/2 mm 0.463” (LL + 5.437”)/2 Scale case Center marks ML/2 mm (LL + OT)/2 “ Alignment brackets (2x) Cable assembly Reading head assembly ML mm LL + OT “...

  • Page 7: Mounting Information

    SENC 150 2 Mounting information Mounting possibilities Determining cable direction Flush Offset Backup spar  Determine cabel exit direction before mounting the encoder. mounting mounting mounting  To change the cable exit direction, remove the cover plate and rotate it by 180°.

  • Page 8: Encoder Dimensions

    SENC 150 3 Encoder dimensions...
  • Page 9 SENC 150 3 Encoder dimensions = Measuring length [mm] = Measuring length [inch] = Overtravel 1.75” = Beginning of measuring length = required mating dimensions = for ML ≥ 625 mm to ≤ 1550 mm use mid-point fastening for ML ≥ 24” to ≤ 60” use mid-point fastening...

  • Page 10: Backup Spar Dimensions

    4 Backup spar dimensions SENC 150 Encoder Encoder Encoder Encoder ML (mm) LL (inch) (mm) (inch) (mm) (inch) (mm) (inch) holes B ML (mm) LL (inch) (mm) (inch) (mm) (inch) (mm) (inch) holes B 185.50 7 .303 29.25 1.152 871.50 34.311...

  • Page 11: Mounting The Encoder Without Backup Spar

    SENC 150 5 Mounting the encoder without backup spar A variety of mounting conditions can be accomodated. Offset surfaces  The machine configuration determines the brackets required to mount the linear encoder.  Two typical mounting conditions are shown: flush and offset.

  • Page 12: Mounting The Encoder Via End Holes

    SENC 150 5.1 Mounting the encoder via end holes Bore hole pattern Mounting  LL < 625 mm (24“): Use end mounting holes. P = Gauging point M6 x 25 mm (1/4”-20 x 1” BHCS) M6 flat washer M4 x 25 mm SHCS low head (8-32 x 5/8”...

  • Page 13: Mounting The Encoder Via Center Support

    SENC 150 5.2 Mounting the encoder via center support Bore hole pattern Mounting P = Gauging point  625 mm (24“) † LL M6 x 25 mm † 1550 mm (60”): (1/4”-20 x 1” BHCS) Use end mounting holes M6 flat washer with center support.

  • Page 14: Mounting The Encoder With Backup Spar

    SENC 150 6 Mounting the encoder with backup spar Mounting possibility Mounting Space of ≤4.5 mm (≤0.18”) use reading head leveling screws!  Flush or offset mounting with a backup spar.  Bracket used to reduce head to mounting surface gap.

  • Page 15: Mounting The Reading Head

    SENC 150 7 Mounting the reading head Mounting the reading head with hex nut Leveling screws M4 hex nut M3 x 12 mm SHSS M4 x 25 mm SHCS low head (8-32 x 5/8” SHCS low head) (8-32 x 3/4” SHCS low head) Adjust the leveling set screws as follows: ...

  • Page 16: Checking The Mounting

    SENC 150 8 Checking the mounting Connecting the encoder  Route the cables with slack loops to allow for axis motion.  Secure excess cable by fastening with clips or ties.  Attach the linear encoder connectors to the readout.

  • Page 17: Specifications

    SENC 150 9 Specifications Mechanical specifications Digital Resolution 0.5 µm 1 µm 5 µm Grating pitch 20 µm Scale medium Light transmission reflective off of nickel coated glass Accuracy (@ 20° C) / 1000 mm ± 3µm, ± 5µm Max. traversing speed...

  • Page 18: Pin-Outs

    SENC 150 10 Pin-outs 11 Output signals Digital Differential Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6 Pin 7 Pin 8 Pin 9 green yellow blue white brown pink gray channel channel channel channel ground Vcc, +5.1...
  • Page 19 SENC 150...
  • Page 20  ID: 516291-22 D516291-02-A-01 05/2017...

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