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EAM 36 A

Product catalog summary

Main Features
The EAM 36 A is a miniaturized multiturn absolute encoder designed for limited size applications. It utilizes magnetic sensor technology without contact, combining Magnetic ASIC with Energy Harvesting. The encoder is robustly constructed with separated chambers and offers a total resolution of up to 51 bits (12 bits single turn + 39 bits multiturn). It supports a power supply of up to +30 VDC and uses SSI as the electronic interface. Additional features include a code reset for easy setup, cable output with connectors available at the cable end, a 6 mm diameter solid shaft, and mounting via a fixing flange.

Ordering Code
The ordering code for the EAM 36 A series includes specifications for model, multiturn and singleturn resolution, code type (binary or gray), power supply options (5 V DC or 8-30 V DC), electronic interface (SSI), logic type (positive), shaft diameter, enclosure rating, maximum rotation speed, output type, direction type, and any custom variants.

Electrical Specifications
The encoder offers multiturn resolution from 1 to 39 bits and singleturn resolution from 1 to 12 bits. It supports power supplies of 4.75 to 5.25 V DC or 7.6 to 30 V DC with reverse polarity protection. The power draw without load is less than 400 mW. The output type is RS-422, and the code type can be binary or gray. Auxiliary inputs are active high, and the clock frequency ranges from 100 kHz to 1 MHz. The SSI monostable time is 20 µs, with a pause time greater than 35 µs. The encoder's accuracy is ± 0.35° typical, with a start-up time of 150 ms.

Mechanical Specifications
The encoder features a 6 mm shaft diameter and an enclosure rating of IP 67 on the cover side and IP 65 on the shaft side. It supports a continuous rotation speed of 8000 rpm and a maximum of 10000 rpm. The maximum shaft load is 20 N axial/radial. It can withstand shocks of 50 G for 11 ms and vibrations of 20 G from 10 to 2000 Hz. The moment of inertia is 0.001 x 10^-6 kgm², and the starting torque is less than 0.01 Nm at +20°C. The shaft is made of AISI 303 stainless steel, the housing of AISI 420 stainless steel, and the bearing stage of EN-AW 2011 aluminum. The encoder uses two ball bearings with a life of 10⁹ revolutions. The operating and storage temperature range is -20° to +85°C.

Connections
The encoder's cable output connections are as follows: +Vdc (red), 0 Volt (black), data + (green), data - (brown), clock + (yellow), clock - (orange), U/D (red/blue), RESET (white), and shield.

Catalog excerpts

EAM 36 A SSI SOLID SHAFT MAGNETIC MULTITURN ABSOLUTE ENCODER MAIN FEATURES Miniaturized multiturn absolute encoder for limited size applications. • Magnetic sensor technology without contact (Magnetic ASIC + Energy Harvesting) • Sturdy construction thanks to separated chambers • Up to 51 bit as total resolution (12 bit single turn + 39 bit multiturn) • Power supply up to +30 VDC with SSI as electronic interface • Code reset for easy setup • Cable output, connectors available on cable end • 6 mm diameter solid shaft • Mounting by fixing flange ORDERING CODE EAM 36A 13 / 12 B 5 S P X 6 X 8 P R . XXX SERIES magnetic multiturn absolute encoder series EAM MODEL fixing flange 0 28 mm 36A MULTITURN RESOLUTION turns from 1 to 39 bit SINGLETURN RESOLUTION from 1 to 12 bit 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 if not used X reset ZE SHAFT DIAMETER mm 6 ENCLOSURE RATING IP 67 cover side / IP 65 shaft side X MAX ROTATION SPEED 8000 rpm 8 OUTPUT TYPE cable (standard length 0,5 m) P DIRECTION TYPE 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

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ELECTRICAL SPECIFICATIONS © 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

Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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