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Eltra S.p.a.
EH 38 A / B / D

EH 38 A / B / D

Product catalog summary

Ordering Code: The document provides an ordering code for the EH 38 series incremental encoders, detailing options for model, resolution, zero pulse, power supply, electronic interface, shaft diameter, enclosure rating, max rotation speed, output type, and variant.

Main Features: The EH 38 series is a miniaturized encoder with a diameter of 38 mm, suitable for small devices. It offers up to 1024 pulses per revolution (ppr), supports power supply up to +24 VDC, and provides various electronic interfaces. The encoder can output up to 100 kHz frequency and features a solid shaft diameter of up to 6 mm.

Electrical Specifications: The encoder supports resolutions from 50 to 1024 ppr, with power supply options of 4.5-5.5 V DC or 7.6-25.2 V DC. It has a maximum current consumption of 100 mA without load and supports different output types including NPN, push-pull, and line driver. The maximum output frequency is 100 kHz, and it complies with IEC 61000-6-1 and IEC 61000-6-4 for electromagnetic compatibility.

Mechanical Specifications: The encoder has a shaft diameter of 6 mm, an enclosure rating of IP 54, and can rotate at speeds up to 3000 rpm. It can withstand axial and radial loads up to 5 N, shocks of 50 G, and vibrations of 10 G. The body is made of aluminum, the shaft of stainless steel, and the housing of PA66 glass fiber reinforced material. It operates within a temperature range of -20°C to +70°C.

Connections: The document outlines the cable output connections for different electronic interfaces, specifying wire colors for each channel and power supply.

Resolutions: Available resolutions range from 50 to 1024 ppr, with preferred resolutions highlighted in bold. Some resolutions are only available without a zero pulse.

Catalog excerpts

EH 38 A / B / DSOLID SHAFT INCREMENTAL ENCODER MAIN FEATURES Miniaturized 0 38 mm encoder series for application in small devices. Recommended when a minimal size is required even providing excellent performances. • 3 channel encoder (A / B / Z) up to 1024 ppr • Power supply up to +24 VDC with several electronic interfaces available • Up to 100 kHz output frequency • Cable output, connectors available on cable end • Solid shaft diameter up to 6 mm • Mounting by clamping or centering square flange SERIES incremental encoder series EH MODEL clamping flange 0 20 mm 38A centering square flange 0 20 mm 38B centering square flange 0 17,46 mm 38D RESOLUTION ppr from 50 to 1024 see table for pulses availability ZERO PULSE without zero pulse S with zero pulse Z POWER SUPPLY 5 V DC 5 8 ... 24 V DC 8/24 ELECTRONIC INTERFACE NPN N NPN open collector C push-pull P push-pull protected (AEIC-7272) PC line driver L SHAFT DIAMETER mm 6 ENCLOSURE RATING IP 54 X MAX ROTATION SPEED 3000 rpm 3 OUTPUT TYPE radial cable (standard length 0,5 m) PR 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 33

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OPTICAL SOLID SHAFT INCREMENTAL ENCODERS I EH 38 A / B / D ELECTRICAL SPECIFICATIONS *output levels according to power supply, for further details please see under Technical basics section MECHANICAL SPECIFICATIONS RESOLUTIONS 50* - 100 - 200 - 250 - 256 - 360 - 400 - 500 - 512 - 1000 - 1024 please directly contact our offices for other pulses, preferred resolutions in bold *available only without zero pulse © 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....

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EH 38 A / B / D

EH 38 A / B / D

Catalog excerpts

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