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Electrical Output and Interface:

Encoder Technology:

Modular Kit?

Resolution (counts per revolution):

(counts/revolution)

Resolution (lines per revolution):

(lines/revolution)

Count Rate:

Positional Accuracy:

Diameter or Width:

Maximum Mechanical Shaft Speed:

Rotor Inertia:

Encoder Signal Output:

Reference / Index Channel?

Hollow Shaft?

Programmable?

Intrinsically Safe?

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Vibration Rating:

Shock Rating:

Help with Incremental Rotary Encoders specifications:

Electrical Output and Interface
   Electrical Output and Interface      The type of electrical signal that will be produced.
   Your choices are...         
   Digital: Square Wave       Digital output signal lines for direct interface with a processor or co-processor (typical for most encoders). Most typical is a square wave or two square waves that can be resolved via quadrature to four counts per line. 
   Analog Voltage       The output is an analog voltage such as 0-10V or ±5V. 
   Analog Current       The output is an analog current such as a 4-20 mA or 0-20 mA current loop. 
   Serial       The output conforms to a standard serial format such as RS232, RS422, RS485, etc. 
   Parallel       The output conforms to a standard parallel format such as general-purpose interface bus (GPIB). 
   SSI       Serial synchronous interface (SSI) is a general standard for absolute encoders. The physical interface consists of two differential connections aside from power and ground. The controller provides a clock input, and the sensor returns a data signal synchronized to the clock. 
   Ethernet       Ethernet is a local area network (LAN) protocol that uses a bus or star typology and supports data transfer rates of 10 Mbps. The Ethernet specification is the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. To handle simultaneous demands, Ethernet uses carrier sense multiple access / collision detection (CSMA/CD) to monitor network traffic. 
   FOUNDATION Fieldbus       The FOUNDATION fieldbus is a serial, all-digital, two-way communication system that serves as a local area network (LAN) for factory instrumentation and control devices. It uses a line or tree topology and distributed data transfer (DDT). In the hierarchy of digital networks, the FOUNDATION fieldbus is on the lower end. 
   CANbus       Controller area network bus (CANbus) is a high-speed serial data network designed for harsh electrical environments and real-time control applications. It operates at data rates up to 1 Mbps and provides excellent error detection and confinement capabilities. 
   INTERBUS®       INTERBUS® is a fieldbus network based on the cyclic, serial transmission of input/output data between a master and slave stations. Common versions include INTERBUS-S®, INTERBUS-R®, and INTERBUS-MUX® (MUX). INTERBUS, INTERBUS-S and INTERBUS-MUX are registered trademarks of Phoenix Contact GmbH & Co. 
   DeviceNet       DeviceNet uses controller area network (CAN) network protocol to connect industrial devices such as limit switches, photoelectric cells, valve manifolds, motor starters, drives, and operator displays to programmable logic controllers (PLCs) and personal computers (PCs). 
   PROFIBUS®       The process fieldbus (PROFIBUS®) is a popular, open communication standard used in factory automation, process automation, motion control, and safety applications. PROFIBUS is standardized in IEC 71158 and IEC 61784 and is suitable for both fast, time-critical applications and complex communication tasks. PROFIBUS is a registered trademark of PROFIBUS International. 
   SUCOnet       SUCOnet Class 1 and 2 (K1 and K2) are 16-bit serial communication interfaces developed by Moeller GmbH for use with programmable controllers and automation products. 
   Other       Other unlisted, specialized, or proprietary encoder outputs. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Encoder Technology
   Encoder Technology       
   Your choices are...         
   Optical       Incremental angular counting is achieved by a light emitter and receiver; outputs can be sine-cosine waves or digitized square waves. Configurations include transmissive systems in which light passes though a transparent disk or is blocked by an opaque line, and reflective systems in which lines are segments of nonreflective space on a strip between reflective segments. 
   Mechanical       Counting is achieved by the disk engaging periodic spring-loaded detents or other mechanical switches. 
   Fiber Optic       Fiber optic signal transmission is often combined with optical sensing. The transmission of position signals by light is advantageous in applications where high noise or EMI/RFI levels could interfere with electrically-transmitted signals. 
   Magnetic       Position measurement results from a sequence of magnetic switches being activated, or by the resolution of interaction between magnetic fields. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Modular Kit       Modular kit encoders have minimal or frame-like support, but do not include a complete housing. They provide flexibility and are relatively easy to assemble. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Performance Specifications
   Resolution (counts per revolution)       The number of counts per revolution, including any interpolation, quadrature, or other electronic count multiplication. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Resolution (lines per revolution)       The number of cycles per revolution of the raw square or sine wave output. This is the same as the number of lines or tick marks on the encoder disk (or equivalent). 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Count Rate       Count rate is the maximum rate of count generation. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Positional Accuracy       Positional accuracy is the maximum error of a reading, in arc seconds. One degree is 3600 arc seconds. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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Mechanical Specifications
   Diameter or Width       The body diameter of a circular encoder, or the maximum side dimension of a square body encoder. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Maximum Mechanical Shaft Speed       The mechanical shaft speed is the maximum speed at which the device can rotate without sustaining physical damage. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Rotor Inertia       Rotor inertia of the encoder shaft system. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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Encoder Signal Output
           
   Your choices are...         
   Quadrature       Quadrature refers to A and B channels that are 90° out of phase. The sine and cosine signals may be read and combined. The theoretically infinite resolution is limited only by the resolution of external digitizing device. 
   Single Channel       Single channel devices are unidirectional or "tachometer" encoders. The single channel allows for one count per physical line. 
   Pulse & Direction       With pulse and direction, a direction channel may be combined with single-channel counting or multiple-channel counting with quadrature. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Reference / Index Channel?       An index signal is a once per revolution output used to mark a reference position. The index signal may also be referred to as a marker, home, or Z position. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Features
   Hollow Shaft       The encoder accepts and attaches to a shaft from another component. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Programmable       Programmable or field-configurable indicates that the operator can program or set some operating parameters such as resolution, output coding and offsets. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Intrinsically Safe       Intrinsically safe (IS) is an adjective for equipment and wiring which is incapable of releasing sufficient electrical or thermal energy under normal or abnormal conditions to cause ignition of a specific hazardous atmospheric mixture in its most flammable concentration. The IS terminations and wiring may be brought into any hazardous location of any group classification for which it is accepted without requiring explosion proof housing or other means of protection. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Environment
   Operating Temperature       This is the full required range of ambient operating temperature. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
   Vibration Rating       This is the maximum sustained vibration that the encoder can withstand and still meet performance specifications. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
   Shock Rating       This is the maximum shock acceleration that the encoder can withstand and still meet performance specifications. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
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