DC25 Absolute SSI Rotary Shaft Encoder

DC25 Absolute SSI Rotary Shaft Encoder
  • SSI Compatible
  • Single and Multi-turn versions available
  • RS485 Communication
  • Optional Reset Button on Multi-turn versions
  • Powder coated aluminum housing for superior durability
  • IP67 Ingress Protection Rating
  • Various mounting styles
  • Ideal for high-shock and vibration applications
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     Downloads

    User Manuals

    DC25 SSI user manual
    DC25 SSI manual errata 

    Description

    AMCI DC25 Absolute SSI Rotary Shaft Encoder

    The AMCI absolute SSI rotary shaft encoder is a member of the DuraCoder product family. Utilizing the DuraCoder's resolver based sensor technology, this rotary encoder provides unique position data output in relation to the shaft position, with up to 4096 counts per turn. An available multiturn version allows for up to 4096 counts per turn over 4096 turns.

    Synchronous Serial Interface (SSI) has been widely accepted for its high throughput, high accuracy and faster response than other means of connecting sensors. All of these products, including the SSI DuraCoders, connect to AMCI’s SSI interface modules or network based interfaces for easy integration into a machine’s automation architecture.

    Other features include Reset to zero and Increasing Count direction inputs. An optional reset button allows the Multiturn SSI DuraCoder’s data to be zeroed without the use of any additional programming equipment or wires.

    Every SSI DuraCoder can also communicate over a RS485 link. This functionality includes the ability to both read position data from, and write setup data to, the DuraCoder. Single Turn DuraCoders can be programmed for any value between 2 and 4096 counts per turn. Multiturn DuraCoders can be programmed with Number of Turns and Full Scale Count parameters. The Number of Turns can be programmed to be any power of two between 1 and 4096. The Full Scale Count can be programmed to be any value between (Number of Turns) and (Number of Turns * 4096). Free software for setting up the SSI DuraCoder can be downloaded from the website.

    Available Versions (x=any selection)

    DC25x-BxSxxx: Single-turn SSI
    Price | $660 - $750/ea

    DC25x-BxS3xx: Multi-turn SSI
    Price | $955 - $1,005/ea

    Stainless Steel Option: add to above pricing
    Price | $525/ea

    Note: Pricing is US Domestic only

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    Software Details

    Every SSI DuraCoder is programmable over a RS485 link. Download the following program if you want to change the DuraCoder’s Number of Turns and Full Scale Count parameters from their default maximum settings to values that more closely match your application.

    AMCI also offers a USB to RS485 serial converter and cable (Part #C485USB-3) to connect your PC to the SSI DuraCoder.

    SSI DuraCoder Software

    ssi-duracoder-programming.gif

    Heavy-Duty Reliability

    AMCI's DuraCoder rotary shaft encoders are resolver-based, providing the heaviest duty 2.5" rotary shaft encoder available, anywhere. Several features set this family of rotary encoders apart from the competition; namely, its cost saving durability, field programmability, and wide range of applications.

    •     Cost-saving durability
    •     Resolver-based reliability
    •     Field programmable output resolution
    •     Wide range of applications
    •     More...

    AMCI resolver-based rotary shaft encoders have earned a "bulletproof" reputation among established machine builders and successful system integrators.

    The AMCI DuraCoder product line 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 AMCI's Rotary Encoders

    Specifications

    Mechanical Specifications

    AMCI DC25 Absolute SSI Rotary Shaft Encoder
    Package style:2.5" diameter housing available with flange or servo mounting
    Housing:Powder coated aluminum or stainless steel housing
    Shaft sizes:Solid shaft diameter
    1/4" , 3/8", 5/8”, or 10 mm diameter stainless steel

    Hub shaft inner diameter
    1/2” standard inner diameter stainless steel shaft
    3/8", 1/2", 10mm, and 12mm bore reducers
    Shaft loading:
    Solid shaft:
    1/4", 3/8", and 10mm shafts:
    40 lbs. radial/20 lbs. axial maximum shaft loading.
    Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.

    5/8" shaft:
    100 lbs. radial/50 lbs. axial maximum shaft loading.
    Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.

    Hub shaft:
    3/8", 1/2", 10mm, and 12mm shafts:
    40 lbs. radial/20 lbs. axial maximum shaft loading.
    Bearing life rated at 2X10^9 revolutions minimum at maximum shaft load.
    Starting Torque:Solid shaft:
    1/4”, 3/8”, & 10mm shafts = 2.0 oz-in max @25° C
    5/8” shaft = 6.0 oz-in max @25° C
    Hub shaft:
    3/8", 1/2", 10mm, and 12mm shafts = 6.0 oz-in max @25° C
    Moment of inertia:Solid shaft:
    1/4", 3/8", & 10 mm shafts = 6.00 x 10-4 oz-in-sec2
    5/8" shaft = 8.50 x 10-4 oz-in-sec2

    Hub shaft:
    3/8", 1/2", 10mm, and 12mm shafts = 8.50 x 10-4 oz-in-sec2
    Connector location:end or side
    Mating Connector:Two different connectors are used with the SSI
    DuraCoder. A nickel plated connector (part # MS-23) is used on our
    aluminum bodied DuraCoders, while a stainless steel M12 connector is
    used on our stainless steel modules.

    -Aluminum DC25: AMCI MS-23 (12 pin)
    female connector sold separately by AMCI via part # MS-23

    -Stainless Steel DC25: Turck M12 (12 pin)
    female connector sold separately by Turck via part # FS 12

    Connector Pinout: MS-23 (12 pin male connector) for aluminum DC25

    PinSignalExplanationAMCI manufactured
    CSL-X cable colors
    1DC Return-Blue / Red
    2Data +SSI signalBlue / White
    3Clock +SSI signalOrange / White
    4RxD +RS485 programming lineBrown / White
    5RxD -RS485 programming lineWhite / Brown
    6TxD +RS485 programming lineGreen / White
    7TxD-RS485 programming lineWhite / Green
    8+DC Input-Red / Blue
    9ResetSingle ended inputGray / White
    10Data -SSI signalWhite / Blue
    11Clock -SSI signalWhite / Orange
    12Direction ControlSingle ended inputWhite / Gray

    Connector Pinout: FS 12 (12 pin male connector) for stainless steel DC25
    Please see DC25 SSI user manual page 23 for connector pinout details.

     

    Electrical Specifications

    AMCI DC25 Absolute SSI Rotary Shaft Encoder
    Output Code:binary or gray code
    Maximum SSI Clock Frequency:1MHz
    Resolution:Single Turn = 4096 counts max
    Multi Turn = 4096 counts/turn & 4096 turns max.
    Direction of Increasing Counts:default = CW increasing looking at the shaft
    CCW increasing when power is applied to pin 12, the Direction Input pin,
    at power up
    Power requirements:4.5Vdc to 26.4Vdc | 24Vdc optimal |1.92W
    Increasing Count Direction and Reset Inputs:
    Input Voltage Range:
    OFF = 0 to (0.2 * DC Supply)
    ON = (0.8 * DC Supply) to DC Supply

    Input Current: 3.5mA

    -The Direction Input is read only at power up.
    -The Reset Input must be active for 100ms, is read on every OFF to
    ON transition, and can be used a maximum of 8,300,000 times.
    -An open input is considered an OFF state.
    Data Format:Multi-Turn Data Format:
    DC25 SSI Multi-turn bits visual

    Single-Turn Data Format:
    DC25 SSI Single-turn bits visual

    Note 1: The Most Significant Bit is transmitted after the
    receipt of the first clock pulse.

    Note 2: The transferred data is always justified with the Least Significant
    bit. This means that on multiturn units that have been configured for
    less than 4096 counts/turn and 4096 turns, the leading bits will be zeros.

    Note 3: If your SSI system generates more than 24 (for Multiturn) or 13
    (for Single Turn) clock pulses, than a trailing zero will be added to the
    right of the Least Significant Bit for every extra clock pulse.

    ENVIRONMENTAL SPECIFICATIONS

    AMCI DC25 Absolute SSI Rotary Shaft Encoder
    Enclosure:IP67 (valid only with working shaft seal & mating connector fitted)
    Shock:50 G's for 11 mSec
    Vibration:20 g, 5 to 2,000 Hz
    Operating temperature:-40° C to 85° C standard

    Technical Drawings

    DC25F-XXSXXE = Flange Mount, End Connector

    DC25F-XXSXXE = Flange Mount, End Connector

    DC25F-X5SXXE = Flange Mount, End Connector, 5/8" shaft

    DC25F-X5SXXE = Flange Mount, End Connector, 5/8

    DC25S-XXSXXE = Servo Mount, End Connector

    DC25S-XXSXXE = Servo Mount, End Connector

    DC25H-XXSXXXE = Hub Shaft, End Connector

    DC25H-XXSXXXE = Hub Shaft, End Connector

    DC25F-XXSXXS = Flange Mount, Side Connector

    DC25F-XXSXXS = Flange Mount, Side Connector

    DC25S-XXSXXS = Servo Mount, Side Connector

    DC25S-XXSXXS = Servo Mount, Side Connector

    DC25F-X5SXXS = Flange Mount, Side Connector 5/8" shaft

    DC25F-X5SXXS = Flange Mount, Side Connector 5/8

    DC25H-XXSXXXS = Hub Shaft, Side Connector

    DC25H-XXSXXXS = Hub Shaft, Side Connector

    DC25-Alternative-shafts-mechanical-drawings = 10mm and 1/4" shaft details

    DC25-Alternative-shafts-mechanical-drawings = 10mm and 1/4

    Accessories

    Cables

    Cables Learn More

    Connectors

    Connectors Learn More

    AMCI makes buying PLC-based automation easy...our sales group will help you:

    • Select the right product for your application
    • Pay by credit card using your Visa, Mastercard, Discover, or American Express
    • Coordinate alternative payment methods (P.O., wire transfers, etc.)
    • Locate a distributor convenient to your region of the country

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    Contact AMCI Sales today:

    860-585-1254

    CONTACT SALES

    Ordering Information

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    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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    create your part number

    Generate your absolute SSI rotary shaft encoder part number by using this helpful ordering guide. Starting from left to right, use the following diagram and table to choose the desired options. Each gray box must contain a single alphanumeric character. Please note the following…

    • There is only one possible option for the DuraCoder Type selection.
    • All AMCI SSI DuraCoders are field programmable over a RS485 serial link. This feature is available at no additional cost.
    • A USB to 485 converter and cable can be purchased from AMCI under the Part #C485USB-3.

    Part Number CharacterAbsolute SSI DuraCoder SelectionsMost Popular Selections
    Mounting style:F = 2.65" square flange
    S = 2.5" diameter servo mount
    (unavailable w/ the 5/8" shaft option)
    H = Hub shaft
    F
    (Square flange)
    Shaft Seal Type
    & Housing Material:
    A = Nitrile seal, stainless steel housing
    B = Nitrile seal, aluminum housing
    C = Viton seal, stainless steel housing
    V = Viton seal, aluminum housing
    B
    (Nitrile seal)
    Shaft Diamter:
    (must choose either solid or hub shaft)
    Solid shaft option (Flange mount)
    1 = 3/8" diameter 0.875” length, No Flat
    2 = 10mm diameter 0.875” length, No Flat
    3 = 1/4" diameter 0.875” length, No Flat
    5 = 5/8" diameter 1.30” length, w/ Keyway
    ---
    Hub shaft option
    1 = 3/8" inner diameter 1.1” max. depth
    2 = 10mm inner diameter 1.1” max. depth
    4 = 1/2" inner diameter 1.1” max. depth
    6 = 12mm inner diameter 1.1” max. depth
    1
    (3/8" shaft)


    --or--


    4
    (1/2" inner diameter)
    DuraCoder Type:S = Absolute SerialS
    Output Configuration:2 = SSI Single Turn (set to 4096 counts/turn)
    3 = SSI Multi Turn (set to 4096 counts/turn and 4096 turns)
    4 = SSI Multi Turn (Output Configuration 3 with reset button, side connector version only)
    3
    (SSI multi-turn)
    Output Code:B = Binary
    G = Gray Code

    (All SSI DuraCoders are field programmable over a RS485 link)
    B
    (Binary)
    Connector Location: S = Side
    E = End
    (MS-23 mating connector sold separately by AMCI)
    (FS 12 mating connector sold separately by Turck)
    S
    (Side connector)
    CablesCSL-X (where X is the length in feet) cable (sold separately)

    Resources

    Encoders Brochure

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