Avtron HS6A Absolute Encoder

Avtron HS6A Absolute Encoder

Tough and Compact!

  • Fits Shafts 0.3-0.6" [8-15mm]
  • Up to 30 Bit Resolution
  • Unbreakable Optical Disk
  • Singleturn or Multiturn
  • IP66 Rating
  • Superior Bearings and Seals
  • No Batteries
  • -40°C to +85°C Operation
  • 2 Year No-Hassle Warranty
Outline Drawing
HS6A absolute rotary hollow shaft encoders fit shafts from 0.3" to 0.6" [8-15mm], and offer superior durability compared to ordinary optical absolute encoders. Also available:  AV6A solid shaft flange-mounted models, HS6M magnetic absolute encoders, HS40 severe-duty absolute magnetic encoders that fit shafts 5/8 - 1 1/8" [16-30mm].


HS6A encoders have superior shaft seals and bearings that stay sealed to keep contaminants out, despite temperature cycles or liquid sprays. Our encoder seals are protected by mechanical barriers to prevent flexing or failure. Avtron’s superior bearings outlast the competition, even when mounting stub shafts have increased runout.


Many competitive optical encoder designs risk sensor damage from any vibration or shock. Some designs even use thin glass disks in "industrial" products! Avtron uses only unbreakable disks.


The HS6A offers a broad range of communication options, from parallel output and SSI to the latest Profibus and Ethernet standards.


Our optical HS6A encoders use superior sensor, disk, bearing, and seal technology to give top performance in industrial conditions. Select an Avtron HS6A today!
Operating Power: Volts: 10 - 30 VDC
Current: 230mA at 10V, 100mA at 24V maximum*
Output Formats: Ethernet/IP*, Modbus TCP*, Profinet*, Powerlink, Profibus, CANOpen, CANSafe, DeviceNet, SSI, Parallel
Accuracy: +/-0.02° (+/-1 arc-min)
Shaft Loading: axial 9lbs [40N], radial 25lbs [110N]
Temperature: -40° to 85°C*
Environment: IP66**
Vibration: 10G, 10-1000Hz
Shock: 30G, 11mS duration
Weight: 1.21lb [550g]; stainless option 2.7lb [1200g]

*(Ethernet versions require 400mA @ 10V or 160mA @ 24V)
**with standard recommended seals
  • Optional all-stainless construction
  • Larger bearings for longer life
  • Ultra-long-life internal gearbox
  • Software-settable zero point for SSI and parallel output
  • Optional factory-programmable cam limits
  • Optional 5V operation
  • Protected against reverse power wiring
  • Profibus DP & ProfiNet Support for Class 1 & 2 & DPV2 Isochronous (ProfiDrive)
Industry General Food & Beverage Pulp & Paper Wood Products Wind Power Crane & Hoist Metals Mining Marine Oil & Gas

Light Mill Duty

AV20, AV25, AV32, AV6A, AV6M, HS25A, HS35A, HS6A, HS6M, K661,
                   

Mill Duty

AV32, HS35M, K661, M185, M3, M3(small), RAHS35M
                   

Heavy Mill Duty

AV115, AV125, AV45, AV5, AV56, AV56S, AV67, AV85, AV850, AV850Test, AVSK, Carlen Replacement, HS45, K661, M4, M4(small), XR115, XR12, XR125, XR45, XR4F, XR5, XR56, XR85, XR850, XR97, XRB1, XRB2
                   

Severe Mill Duty

AV12, AV30, AV485, AV5, AV685, Carlen Replacement, HS40, K661, M484, M6, M6C, M7, XR12, XR485, XR5, XR685, XR97, XRB1, XRB2,
                   
Avtron HS6A optical absolute encoders replace many competitive models, including:

Allen Bradley:  842A, 842D, 842E, 845GM, 845D, 845G
BEI: HS35 absolute
Dynapar/ACURO:  AD35, AD36
Heidenhain:  ECN413, EQN425
Pepperl+Fuchs:  AVS36M, AVS42H,BVM58, BVS58,  CVM36M, CVS36M, CVM42H, CVS42H, CVM58, CVS58, CVM58S, CVS58S, DVM58, DVS58, EVM58, EVS58, FVM58, FVS58,  PVM58, PVS58, RVS58S
 
As well as replacing many other hollow shaft absolute rotary encoders.

Related Products

Adobe Reader

In This Section

  • Absolute Encoder

    Absolute indicates the position of the rotor or shaft referenced to a fixed starting position. If power is turned off and then on, the encoder recalls the position correctly. It may output the position information on a set of output wires (parallel), or it may output the absolute position using a communications bus, such as Profibus or DeviceNet. Absolute encoders can be single-turn or multi-turn. For more information, Wikipedia:  http://en.wikipedia.org/wiki/Rotary_encoder

  • Absolute Position

    Absolute Position indicates the position of a rotor or shaft referenced to a fixed starting position. Resolvers and absolute encoders can provide absolute position feedback.

  • Accuracy

    Encoder accuracy is the ability of or limit to the encoder to repeat the exact same signals, given the exact same mechanical position.  Accuracy and resolution may be independent--an encoder can have higher accuracy than resolution, and vice versa.  Avtron incremental encoders are typically accuracy rated at +/-1 count of their resolution; Avtron absolute encoder accuracy varies by model.

  • Bus

    A communications (field) bus is used to carry absolute encoder signals to the control system.  It may do so automatically on a clock signal input to the encoder (SSI), or in response to a message (ex:  Profibus, DeviceNet).  For more information on fieldbuses:  Wikipedia:  http://en.wikipedia.org/wiki/Fieldbus

  • CANopen

    CANopen is a fieldbus used by Avtron absolute encoders to report position and speed to a controller.  CANOpen uses a 4 wire main bus+drop wiring system (CAN).  CANOpen is hardware-identical to DeviceNet and J1939, but the encoder messages sent are different.  For encoder communications, SSI, Ethernet, or Profibus may be faster than CANOpen.  For more information on CANopen-Wikipedia:  http://en.wikipedia.org/wiki/Canopen

  • Cycles Per Revolution (CPR)

    This is the sine-cosine encoder equivalent to PPR. It indicates the number of sine waves output per revolution, and does not count the cosine waves. Some vendors also use CPR as an equivalent to PPR for digital incremental encoders.

  • DeviceNet

    DeviceNet is a fieldbus used by Avtron absolute encoders to report position and speed to a controller.  DeviceNet uses a 4 wire main bus+drop wiring system (CAN).  DeviceNet is hardware-identical to CANopen and J1939, but the encoder messages sent are different.  For encoder communications, SSI, Ethernet, or Profibus may be faster than DeviceNet.  For more information on DeviceNet-Wikipedia:  http://en.wikipedia.org/wiki/Devicenet

  • Encoder

    A device which indicates position and speed via a set of digital outputs. Incremental encoders output quadrature (A Quad B) signals, and may add a marker pulse once per revolution.  Absolute encoders typically indicate position via a digital message, a set of parallel outputs, or analog values.

  • EnDat

    EnDat is a proprietary protocol used for some absolute encoders.  EnDat encoders are only manufactured by one company, eliminating competition.  Most controllers which support EnDat also support SSI, which is a open protocol to all vendors and is used by Avtron absolute encoders.

  • Ethernet/IP

    Ethernet/IP is an Ethernet-based fieldbus used by Avtron absolute encoders to communicate with a controller.  For more information about Ethernet/IP-Wikipedia:  http://en.wikipedia.org/wiki/EtherNet/IP

  • Fieldbus

    A Fieldbus (communications wiring hardware and software standard) is used to carry absolute encoder signals to the control system.  It may do so automatically on a clock signal input to the encoder (SSI), or in response to a message (ex:  Profibus, DeviceNet).  For more information on fieldbuses:  Wikipedia:  http://en.wikipedia.org/wiki/Fieldbus

  • GSD

    GSD files are text files used in Profibus configuration to instruct the master/scanner device of the information coming from each device (bytes/words/meanings).  The user of Avtron encoders downloads the file, then adds it to his configuration software.  Then he can add Avtron absolute encoders to his bus configuration.  Avtron absolute encoder GSD files are found in the Documents tab for each encoder, on the product page.

  • Hiperface

    Hiperface is a proprietary encoder communications system.  Hiperface encoders are only manufactured by one company.  Most devices that support Hiperface also support SSI, an open vendor protocol supported by most controller manufacturers, and used by Avtron absolute encoders.

  • Hollow Shaft

    Hollow Shaft encoders mount by passing the shaft of the motor into or through the encoder. Hollow shaft encoders are easy to mount and replace but are vulnerable to damage. Also, the weight of the encoder must be considered for small motor shafts < 0.75" diameter. Avtron offers a full range of hollow shaft encoders, including: AV685, HS25A, HS35A, HS35M, M3, M4, M6, M7, XP45.

  • J1939

    J1939 is a fieldbus used by Avtron absolute encoders to report position and speed to a controller.  J1939 uses a 4 wire main bus+drop wiring system (CAN).  J1939 is hardware-identical to DeviceNet and CANopen, but the encoder messages sent are different; J1939 is primarily used on mobile vehicles.  For encoder communications, SSI, Ethernet, or Profibus may be faster than J1939.  For more information on J1939-Wikipedia:  http://en.wikipedia.org/wiki/J1939

  • M12 Connector

    M12 (12mm) connectors are a screw or push-on style connector used by Avtron incremental and absolute encoders.  There are different pin quantities, pinouts, and keying, depending on the vendor style supported by the product.  M12 mating cables are typically overmolded, rather than field-solderable, such as MS connectors, or screw terminals, such as EPIC connectors.

  • M23 Connector

    M23 (23mm) connectors are a screw or push-on style connector used by Avtron incremental and absolute encoders.  There are different pin quantities, pinouts, and keying, depending on the vendor style supported by the product.  M23 mating cables are typically overmolded, rather than field-solderable, such as MS connectors, or screw terminals, such as EPIC connectors.

  • Modbus/TCP

    Modbus/TCP is an Ethernet-based communication fieldbus used by Avtron encoders to communicate speed and position to a controller.  For more information on Modbus/TCP-Wikipedia: http://en.wikipedia.org/wiki/Modbus

  • Multiturn

    Multiturn refers to the capability of an absolute rotary encoder to output the position accurately including how many times the shaft has been rotated.  The absolute encoder will report this position correctly, including both the position within 1 revolution as well as the total number of turns, whether the encoder was powered when the turns took place or not.  Avtron multiturn absolute encoders do not use batteries, and Avtron absolute magnetic encoders do not use gears for maximum reliability.  Example:  Avtron AV30 severe duty absolute encoder.  For more information on absolute rotary encoders-Wikipedia:  http://en.wikipedia.org/wiki/Rotary_encoder.

  • Optical Disk

    An Optical Disk is typically a glass, metal, or plastic disk with fine lines or slots etched around the perimeter that interrupt the beam of light from the light source to an optical sensor. Optical disks can be quite fragile. Avtron uses only shatterproof optical disks with Wide-Gap technology.

  • Optical Encoder

    An Optical Encoder typically uses a light source shining through, or reflecting off, an optical disk with lines or slots that interrupt the beam of light to an optical sensor. Electronics count the interruptions of the beam and generate the encoder’s output pulses.

  • Parallel

    Parallel outputs are used by some Avtron absolute encoders to communicate the position to a controller.  One wire is used for each bit of resolution, plus one wire for each turn for multiturn units.  Parallel outputs are used for older controllers; newer controllers typically use a communication fieldbus (such as SSI or Profibus) to read the encoder position.

  • Powerlink

    Powerlink is an Ethernet-based absolute encoder communications hardware and software standard used by Avtron absolute encoders.  For more information about Powerlink-Wikipedia:  http://en.wikipedia.org/wiki/Ethernet_Powerlink

  • PPR

    Pulses Per Revolution. Most Avtron encoders output quadrature pulses, with four times as many lines as pulses. Often lines can be counted in the drive/speed controller for higher resolution applications.

  • Profibus DP

    Profibus DP is a fieldbus used by Avtron absolute encoders to communicate speed and position to a controller.  For more information about Profibus DP-Wikipedia:  http://en.wikipedia.org/wiki/Profibus

  • Profinet

    Profinet (IO) is a communications fieldbus used by Avtron absolute encoders to communicate speed and position to a controller.  Profinet carries Profibus messages over an Ethernet network to and from the encoder.  For more information on Profinet-Wikipedia:  http://en.wikipedia.org/wiki/Profinet

  • Resolution

    Resolution describes how many individual slices or positions can be reported by an incremental or absolute encoder.  For incremental encoders the number of PPR (pulses per revolution) expresses resolution; for absolute encoders, PPR, or counts per turn or bits of resolution may be listed.

  • Shaft Runout

    The wobbling motion produced by a shaft that is not perfectly true and straight. Shaft runout is often abbreviated T.I.R. (Total Indicated Runout).

  • Single Turn

    Single turn refers to absolute encoders--the encoder accurately reports the position within 360 degrees of travel to the resolution specified.  Multiple turns are ignored--multiturn absolute encoders are required to track and report position over multiple turns as well as the position within 1 turn.  Avtron absolute single-turn encoders are more durable because they don't use glass disks.  For more information about absolute rotary encoders:  Wikipedia:  http://en.wikipedia.org/wiki/Rotary_encoder

  • SSI

    SSI (Synchronous Serial Interface) is a fieldbus used by Avtron absolute encoders to communicate speed and position to a controller.  SSI is extremely simple and fast.  SSI is also an effective, open vendor alternative to proprietary encoder fieldbuses such as EnDAT and HyperFace.   For more information about SSI-Wikipedia:  http://en.wikipedia.org/wiki/Synchronous_Serial_Interface

  • T.I.R.

    Total Indicated Runout. This is a measurement of how much a shaft wobbles with each revolution (shaft runout).

Contact Avtron

Contact Us