Absolute Rotary Encoders
Browse Absolute Rotary Encoders by type
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AD34 Absolute Rotary Encoder with BiSS | SSI
- 37.5mm diameter, plastic.
- Up to 19-bit single-turn, 12-bit multi-turn.
- 6mm solid shaft.
- Radial / axial PCB connector with optional connecting cable.
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AD35 Absolute Rotary Encoder with BiSS | SSI
- 37.5mm diameter, plastic.
- Up to 22-bit single-turn.
- 8mm hub-shaft.
- Radial / axial PCB connector with optional connecting cable.
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AD36 Absolute Rotary Encoder with BiSS | SSI
- 37.5mm diameter, aluminium.
- Up to 19-bit single-turn, 12-bit multi-turn.
- 8mm hollow shaft or hub-shaft.
- Radial / axial PCB connector with optional connecting cable.
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AC36 Absolute Rotary Encoder with BiSS | SSI
- 37.5mm diameter, aluminium.
- Up to 17-bit single-turn, 12-bit multi-turn.
- 6mm solid shaft.
- Axial / radial cable exits.
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AC58 Absolute Rotary Encoder with BiSS | SSI
- 58mm diameter, aluminium.
- Up to 17-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Axial / radial connectors or cable exits.
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AC58 Absolute Rotary Encoder with Profibus
- 58mm diameter, aluminium.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Bus cover with connectors or sealed cable exits.
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AC58 Absolute Rotary Encoder with CANopen
- 58mm diameter, aluminium.
- Up to 16-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Bus cover, axial / radial connectors or cable exits.
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AC58 Absolute Rotary Encoder with CANlayer2
- 58mm diameter, aluminium.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Bus cover, axial / radial connectors or cable exits.
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AC58 Absolute Rotary Encoder with EtherCAT
- 58mm diameter, aluminium.
- Up to 22-bit single-turn, 12-bit multi-turn.
- 6mm to 14mm solid shaft or hub-shaft.
- Bus cover with M12 connectors.
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AC58 Absolute Rotary Encoder with DeviceNet
- 58mm diameter, aluminium.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Bus cover with connectors or sealed cable exits.
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AC58 Absolute Rotary Encoder with Interbus
- 58mm diameter, aluminium.
- Up to 12-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Bus cover, sealed exits or cable exits.
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AC58 Absolute Rotary Encoder with SUCOnet
- 58mm diameter, aluminium.
- Up to 13-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Axial / radial cable exits.
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AC58 Absolute Rotary Encoder with PROFINET
- 58mm diameter, aluminium.
- Up to 22-bit single-turn, 12-bit multi-turn.
- 6mm to 14mm solid shaft or hub-shaft.
- Bus cover with M12 connectors.
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AC58 Absolute Rotary Encoder with Parallel Wiring
- 58mm diameter, aluminium.
- Up to 12-bit single-turn, 12-bit multi-turn.
- 6mm to 12mm solid shaft or hub-shaft.
- Axial / radial connectors or cable exits.
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AD58 Absolute Rotary Encoder with BiSS | SSI
- 58mm diameter, aluminium.
- Up to 22-bit single-turn, 12-bit multi-turn.
- 10mm solid shaft or hub-shaft.
- Radial / axial PCB connector.
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AD58S Absolute Rotary Encoder with DRIVE-CLiQ
- 58mm diameter, aluminium.
- Up to 24-bit single-turn, 12-bit multi-turn.
- 9.25mm tapered solid shaft.
- PCB radial connector.
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AR62 | AR63 Robust Heavy Duty Absolute Rotary Encoder
- 58mm diameter, aluminium or stainless steel.
- SSI, CANopen or Analogue.
- Up to 16-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
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AC59 | AC61 Stainless Steel Absolute Rotary Encoder with BiSS | SSI
- 63.5mm square flange, stainless steel.
- Up to 17-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Axial or radial cable exits.
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AC59 | AC61 Stainless Steel Absolute Rotary Encoder with Parallel Wiring
- 63.5mm square flange, stainless steel.
- Up to 17-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Axial or radial cable exits.
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AC61 Stainless Steel Absolute Rotary Encoder with Profibus
- 63.5mm square flange, stainless steel.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Bus cover with sealed cable exits.
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AC61 Stainless Steel Absolute Rotary Encoder with CANopen
- 63.5mm square flange, stainless steel.
- Up to 16-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Bus cover or axial / radial cable exits.
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AC61 Stainless Steel Absolute Rotary Encoder with CANlayer2
- 63.5mm square flange, stainless steel.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Bus cover or axial / radial cable exits.
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AC61 Stainless Steel Absolute Rotary Encoder with Interbus
- 63.5mm square flange, stainless steel.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Bus cover with sealed cable exits.
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AC61 Stainless Steel Absolute Rotary Encoder with DeviceNet
- 63.5mm square flange, stainless steel.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Bus cover with sealed cable exits.
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AC61 Stainless Steel Absolute Rotary Encoder with PROFINET
- 63.5mm square flange, stainless steel.
- Up to 22-bit single-turn, 12-bit multi-turn.
- 9.52mm or 10mm solid shaft.
- Bus cover with M12 connectors.
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AX65 Stainless Steel ATEX Absolute Rotary Encoder with SSI
- 59mm diameter, stainless steel.
- 12-bit single-turn resolution.
- 10mm solid shaft.
- Axial / radial M20 threaded connections.
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AX65 Stainless Steel ATEX Absolute Rotary Encoder with CANopen
- 59mm diameter, stainless steel.
- Up to 16-bit single-turn, 12-bit multi-turn.
- 10mm solid shaft.
- Axial / radial M20 threaded connections.
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AX70 | AX71 ATEX Absolute Rotary Encoder
- 70mm diameter, aluminium or stainless steel.
- BiSS, SSI, DeviceNet, CANopen and Profibus interfaces.
- Up to 22-bit single-turn, 12-bit multi-turn.
- 10mm solid shaft.
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AX73 Stainless Steel ATEX Absolute Rotary Encoder with BiSS | SSI
- 76mm diameter, stainless steel.
- Up to 22-bit single-turn, 12-bit multi-turn.
- 10mm solid shaft.
- Radial M20 threaded connections.
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AX73 Stainless Steel ATEX Absolute Rotary Encoder with Profibus
- 76mm diameter, stainless steel.
- Up to 14-bit single-turn, 12-bit multi-turn.
- 10mm solid shaft.
- Radial M20 threaded connections.
Absolute rotary encoders translate rotary motion to a unique binary output code parallel to the mechanical movement of a rotating shaft providing accurate positional feedback.
Absolute rotary encoders maintain positional values on the loss of power. The synchronisation of new positional values resumes on power restoration, so unlike incremental encoders, there is no need to reset the encoder or other electrical devices on restart.
The most popular type of encoder is an optical rotary encoder. As an encoder shaft turns a disk with multiple tracks, one graduated track for each binary bit also rotates. An infrared light beam reads the bit track on the encoder disk, generating a binary code relative to the angular position of the shaft.
There are two absolute rotary encoder types:
- Single-turn encoders repeat the binary output code for each revolution, restricting their use to a 360° cycle, used for speed or angular positioning.
- Due to their mechanical design, multi-turn encoders offer a unique binary code over many revolutions and are generally used for measuring applications.
We offer a vast range of absolute encoders from light-duty to extreme heavy-duty with fieldbus interfaces such as Profibus, Interbus, CANopen, CANlayer2, DeviceNet, EtherCAT, PROFINET, SUCOnet, BiSS, SSI and parallel wiring.
Absolute rotary encoders are available with high resolutions, IP and temperature ratings for applications that demand the best encoder technology.