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Table of Contents
Summary of Contents for AcuRite ENC 150
- Page 1 ™ ENC 150 REFERENCE MANUAL ®...
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Page 2: Table Of Contents
ENC150 Table of Contents Page Page Introduction ................2 Spar Installation Procedure ............. 11 Checking your Installation ............13 Mounting Preparation ............... 3 Electrical Shielding ..............14 Mounting Information ............... 4 Troubleshooting ..............15 Encoder Dimensions ..............5 Backup Spar Dimensions ............6 Mechanical Specifications ............. -
Page 3: Introduction
Introduction ENC 150 The ENC 150 precision glass scale linear encoder provides the For future ordering information or warranty service, record the linear accuracy and reliability of an ACU-RITE measuring system with encoder catalog number located on the scale assembly tag, and digital output (analog output available). -
Page 4: Mounting Preparation
ENC150 Mounting Preparation Please follow these preparation guide lines. • Understand your mounting requirements. • Mount with lip seals down and away from the work area. • Brackets should be kept as short as possible and rigid. • Surfaces must be in good condition, clean, and free of dirt. Remove paint from machined mounting surfaces. -
Page 5: Mounting Information
Mounting Information ENC150 Use this information to plan your Linear Encoder installation. 1.826 ±.010 [46.5] // .010 A • Mount the linear encoders close to machine guide ways to ensure system accuracy. • One side of the linear encoder addresses flush mounting surfaces, and the opposite side addresses offset mounting surfaces. -
Page 6: Encoder Dimensions
ENC150 Encoder Dimensions .810 .700 Measuring length + 6.375 [20.6] [17.8] .469 .285 [7.2] Measuring length + 5.437 .937 [11.9] .562 End Cap [23.8] [14.3] Mounting hole Scale case .750 [19.0] 1.12 1.826 [28.5] .944 [46.4] [24.0] .121 .570 [3.11] [14.5] .100 .320... -
Page 7: Backup Spar Dimensions
Backup Spar Dimensions ENC 150 Backup spar Linear Encoder Backup spar Linear Encoder X No. X No. Part Number Measuring Length Part Number Measuring Length Places Places 385102-000 8.312 1.656 5.000 385135-000 35 (“E” 40.437) 41.312 .437 10.109 385104-000 10.312 2.656... -
Page 8: Mounting Requirements
ENC150 Mounting Requirements Mounting options can be adapted to machine mounting surfaces End hole mounting Center using spacers, standoffs, or leveling set screws. with center support 1/4-20 x 3/4” support SHCS • Measuring length and mechanical configuration of your machine Linear determine your options. -
Page 9: Typical Mounting (S)
Typical Mounting (s) ENC 150 A variety of mounting conditions can be accommodated. Offset surfaces • The machine configuration determines the brackets required to install the linear encoder. • Three typical mounting conditions are shown; flush, offset, and 1/4-20 x 1” BHCS backup spar (as shown previously on page 4). -
Page 10: Encoder Installation Procedure
ENC150 Encoder Installation Procedure These steps apply to all encoder mounting conditions, if a spar is being used, go to “Spar Installation Procedure” on page 11. Center mounting axis • ACU-RITE bracket kit instructions supercede this section. • Adjust drill depths and fastener lengths as required. •... - Page 11 Encoder Installation Procedure ENC 150 Drill / tap -A- = Axis travel for 1/4-20 (M6). Drill / tap for 8-32 (M4). Align to within .010” TIR to -A- 8-32 x 3/4” SHCS (M4 x 20mm) Do not tighten prior to adjusting 1/4-20 x 1”...
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Page 12: Spar Installation Procedure
ENC150 Spar Installation Procedure These steps apply to all spar mounting conditions. -A- = Axis travel • ACU-RITE bracket kit instructions supercede this section. Align top of spar to within • Adjust drill depths and fastener lengths as required. .015” of -A- Axis parting line •... - Page 13 Spar Installation Procedure ENC 150 M4 x 8mm set screws 8-32 x 5/8” SHCS (M4 x 16mm) Do not tighten prior to adjusting leveling set screws. • Insert the encoder into the spar. • Attach the bracket to the machine.
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Page 14: Checking Your Installation
ENC150 Checking Your Installation These steps will confirm proper operation of your installation. The Counting Test confirms proper electrical operation. The Repeatability Test checks the installation integrity. Counting Test: • Configure the readout’s encoder and display resolution (see manual). • Move the axis and compare the display to the movement. •... -
Page 15: Electrical Shielding
Electrical Shielding ENC 150 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. -
Page 16: Troubleshooting
Do not attempt to repair the reading head or scale assembly. The Checking the Linear Encoders ENC 150 is field serviceable by assembly replacement only. Problems on a single axis are usually associated with the linear Attempts to repair the encoder can permanently damage it and void encoder or its installation. -
Page 17: Mechanical Specifications
Mechanical Specifications ENC150 Mechanical Specifications Digital Analog Resolution (µm) Grating pitch (µm) Scale medium Light transmission through chrome-coated glass Accuracy (@ 20 ° C) µ m, ± , in any 1000mm 3, 5 Max. slew speed (inches/sec) ≤ 0.75 Force to move reading head (lbs) Operating Environment 0 °... -
Page 18: Output Signals And Pin-Outs
ENC 150 Output Signals and Pin-Outs 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: Electrical Specifications
Electrical Specifications ENC150 Parameter Digital Analog =(High level output current) = 20mA Output Signals =(High level output voltage) >2.5Vdc 90° 360° 0° :7-16 µA 0° 360° A, B Channel B IµA Channel R+ Channel A+ Channel A Channel R- 1 Channel A- 90°... -
Page 20: The Acu-Rite Warranty
ENC 150 Warranty ACU-RITE products and accessories are warranted against defects Responsibility for loss of operation or diminished performance due in material and workmanship for a period of three years from the to conditions beyond ACU-RITE's control cannot be accepted by date of purchase. - Page 22 Precision Glass Scale Linear Encoders and Readout Systems are manufactured in the USA ACU-RITE IS AN ISO 9001 CERTIFIED MANUFACTURER ACU-RITE INCORPORATED ONE PRECISION WAY MASON INDUSTRIAL PARK JAMESTOWN, NEW YORK 14701 101000-170 EDITION D 8/98 PRINTED IN USA...