HTT-20-X Multi-turn Resolver Transducer

HTT-20-X Multi-turn Resolver Transducer
  • 4 different vernier encoded multi-turn configurations
  • best angular accuracy and repeatability
  • IP64 rated
  • ideal for high-shock applications
  • internally geared housing for reliability
  • 100% compatible with AMCI's complete line of resolver interface products
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    HTT20X drawings PDF version










    HTT-20-X Brushless Multi-Turn Resolver Transducer

    Many applications require high-resolution, multi-turn position sensing. In response to market demands, AMCI engineered the HTT-20 series of IP64 rated resolver transducers to provide absolute position feedback for up to 1,800 turns with a maximum resolution up to 4,096 counts/turn. The actual number of counts per turn depends on the transducer and the electronics used to decode the position.

    Each transducer contains two resolvers that are geared together in a vernier arrangement. For the 100 turn and 180 turn transducers, this arrangement requires only two gears. This mechanical simplicity makes the HTT-20 transducers more reliable then transducers that have a multi-pass gear train between the two resolvers. The 1,000 and 1,800 turn transducers are also mechanically simple, having only a single pass 10:1 gear ratio between the input shaft and the two vernier resolvers. This mechanical simplicity allowed AMCI to design the HTT-20 transducers as a space saving, compact package. These resolver transducers have a 5/8" keyed shaft, AMCI's standard 1/4" X 20 mounting holes, sealed bearings, and a mil-spec connector.

    AMCI offers a complete line of resolver interface solutions, enabling you to easily configure a resolver-based position feedback system in your favorite PLC, PAC, or network.

    Available Versions

    HTT-20-100: 100 turn transducer, 1,024 counts/turn
    Price | $2,195/ea

    HTT-20-180: 180 turn transducer, 1,024 counts/turn
    Price | $2,325/ea

    HTT-20-1000: 1,000 turn transducer, 102.4 counts/turn
    Price | $2,750/ea

    HTT-20-1800: 1,800 turn transducer, 102.4 counts/turn
    Price | $3,025/ea

    Note: Pricing is US Domestic only



    Consult the factory for availability

    Contact Sales

    Heavy-Duty Reliability

    The resolver transducer was originally developed to withstand the punishment of military applications, and has since benefited from more than 50 years of continuous use and development. Product packaging plants and stamping press lines are perfect examples of where you might find resolver based systems at work today.

    Builders and system integrators alike agree that the resolver transducer is unsurpassed in its ability to reliably supply rotary position data in the harshest industrial environments.

    The AMCI resolver product line is offered in aluminum or stainless steel construction, and boasts up to an IP67 rating. Solid shaft and hub shaft versions are available, and both types incorporate an oversized double row bearing that supports shaft loads up to 100 lbs. radial / 50 lbs. axial.

    Inside the Resolver Transducer



    Mechanical Specifications

    HTT-20-X Resolver Transducer
    Shaft loading: 100 lbs. Radial / 50 lbs. Axial maximum shaft loading.
    At the listed shaft load, bearing life is rated for a minimum of 2X10ˆ9 revolutions.
    Starting torque:8 oz. in max @25° C
    Moment of inertia:
    8.75 X 10ˆ-4 oz-in-secˆ2
    Weight: 4 lbs.
    Housing:Flange: anodized aluminum
    Body: powder coated aluminum
    Shaft:1070 carbon steel

    Connector Pinout: (Military Equivalent Part #: MS3102E20-27P)

    AR1 (both resolvers)
    BR2 (both resolvers)
    CS4 coarse
    DS2 coarse
    ES1 coarse
    FS3 coarse
    GS4 fine
    HS2 fine
    IS1 fine
    JS3 fine
    K to NNo connection


    HTT-20-X Resolver Transducer
    Input Frequency:5000 Hz
    Rotor Input Voltage:7.0 V rms
    Stator Output Voltage:6.65 V rms
    Transformation Ratio:0.95 ± 5%
    Input Current:20 mArms typical, 34 mArms max.
    Phase Shift:10° max.
    Accuracy:max. error ±5 minutes


    HTT-20-X Resolver Transducer
    Operating temperature:-40° C to 125° C (-40° F to 257° F)
    Shock:50 G's for 11 mSec
    Vibration:15 g's to 2,000 Hz


    Compatible Cables

    For all cables, (x) = length of cable in feet.


    AMCI Part NumberUses Connector:


    Compatible Connectors

    Connectors are sold separately or as part of a pre-assembled cable.


    AMCI Part NumberMilitary Equivalent
    90 DegreeMS-22MS3108A20-27S



    Resolver transducers product family overview

    AMCI’s wide selection of resolver transducers, resolver interfaces for PLC based systems, and related accessories provide a complete, quality solution supported by over 25 years of product design, manufacturing, and application experience. Watch the video to learn more about these maximum duty rotary sensors!

    Duration 01:20


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    Ordering Information

    AMCI's sales team takes the hassle out of placing your order. We'll advise on product selection, alternatives, lead times, and present you with point of purchase options. Call (860) 585-1254 or email AMCI sales today! 

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