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EMA 55 A / AY SSI

EMA 55 A / AY SSI
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EMA 55 A / AY SSI

Product catalog summary
Overview: The document provides technical specifications for the EMA 55 A / AY series of magnetic singleturn absolute encoders by Eltra S.p.a. These encoders are designed for various industrial applications, including electric motors, marine, iron and steel, textile, woodworking, paper-working, glass working, marble-working machinery, and automation and process control fields.
Main Features:
  • Resolution up to 13 bit (8192 pulses per revolution) with Serial Synchronous Interface (SSI).
  • Output options include cable or M12 connector.
  • Utilizes no-contact magnetic technology, eliminating wear.
  • Bore shaft diameter options up to 10 mm.
  • Enclosure rating up to IP67, suitable for harsh environments.
  • Wide operating temperature range from -40°C to +100°C (-40°F to +212°F).
Electrical Specifications:
  • Resolution ranges from 8 to 8192 pulses per revolution.
  • Power supply options: 4.75 to 5.25 V DC or 7.6 to 31.5 V DC.
  • Maximum power draw without load is 800 mW.
  • Output type is RS-422 with binary or gray SSI output code.
  • Clock frequency ranges from 100 kHz to 1 MHz.
  • Accuracy is typically ±0.35° and a maximum of ±0.50°.
  • Electromagnetic compatibility standards: IEC 61000-6-1 and IEC 61000-6-4.
Mechanical Specifications:
  • Bore diameter options: 6, 8, 9.52 (3/8”), and 10 mm.
  • Enclosure ratings: IP 65 and IP 67 according to IEC 60529.
  • Maximum rotation speed is 10,000 rpm.
  • Shock resistance: 50 G for 11 ms (IEC 60068-2-27).
  • Vibration resistance: 10 G from 10 to 2000 Hz (IEC 60068-2-6).
  • Body and magnet actuator material: EN-AW 2011 aluminum.
  • Operating temperature: -40° to +100°C (-40° to +212°F).
  • Storage temperature: -25° to +85°C (-13° to +185°F).
  • Weight: 150 g (5.29 oz).
  • Mounting tolerances for optimal performance: ±0.2 mm axial, ±0.1 mm radial.
Resolutions Available: 8, 16, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 800, 1000, 1024, 1600, 2000, 2048, 4096, 8192.
Connection Details: The document includes connection details for cable output and 8-pin M12 connectors, specifying pin assignments for power, data, and clock signals.
See more

Catalog excerpts

EMA 55 A / AY SSI-1

EMA 55 A / AY SSI MAGNETIC SINGLETURN ABSOLUTE KIT ENCODER MAIN FEATURES EM series encoders are suitable for several application fields like electric motors marine industry, iron and steel industry, textile machines, wood-working, paper-working, glass working, marbleworking machinery and, more generally, automation and process control fields. • Resolution up to 13 bit (8192 ppr) with SSI as electronic interface • Cable or M12 output, other connectors available on cable end • No wear due to no contact magnetic technology • Bore shaft diameter up to 10 mm • Enclosure rating up to IP67 • Wide operating temperature -40° ... +100°C (-40° ... +212°F) EMA 55A 1024 10 R . XXX SERIES magnetic singleturn absolute encoder EMA MODEL fixing holes 0 48 mm 55A fixing holes 0 48 mm anodized 55AY RESOLUTION ppr from 8 to 8192 see table for pulses availability CODE TYPE binary B gray G POWER SUPPLY 5 V DC 5 8 ... 30 V DC 8/30 ELECTRONIC INTERFACE Serial Synchronous Interface - SSI S LOGIC positive P OPTIONS to be reported X BORE DIAMETER (MAGNET ACTUATOR) mm 6 mm 8 9,52 (3/8”) mm 9 mm 10 ENCLOSURE RATING IP 65 X IP 67 S MAX ROTATION SPEED 10000 rpm 10 OUTPUT TYPE cable (standard length 0,5 m) P M12 connector M12 female connector included, without female please add 162 as variant code DIRECTION TYPE axial A radial R VARIANT custom version XXX © Copyright 2016 Eltra S.p.a. Unipersonale. All rights reserved. All informations in this catalog are subject to change without notice. Eltra takes no responsibility for typographic errors. For the terms of sales please check the website. REV. 160607 139

 Open the catalog to page 1
EMA 55 A / AY SSI-2

MAGNETIC SINGLETURN ABSOLUTE ENCODERS I EMA 55 A / AY EMA 55 A / AY radial cable output EMA 55 A / AY axial cable output ELECTRICAL SPECIFICATIONS M12 connector (8 pin) M12 A coded solder side view FV © Copyright 2016 Eltra S.p.a. Unipersonale. All rights reserved. All informations in this catalog are subject to change without notice. Eltra takes no responsibility for typographic errors. For the terms of sales please check the website. REV. 160607 140

 Open the catalog to page 2

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