Encoders
MSI TEC is an authorized distributor of Encoder Products Company, a leading global manufacturer of motion sensing devices. They are recognized for producing the most complete line of incremental and absolute rotary encoders in the industry.
What is an encoder?
An encoder is a sensing device, or an electromechanical feedback device, that converts motion to an electrical signal that can be read from a control device, such as a PLC or counter. Encoders indicate movement from one position to the next position and create signals using different technologies, like optical, mechanical, magnetic and resistive.
Encoders produce two types of signals: incremental or absolute. The difference between the two is that absolute encoders indicate a change of position and location change relative to shaft rotation. Incremental encoders only indicate that the position has changed, but not the specific position.
Specifying the right encoder for your application can be challenging due. We have the experience and expertise to help you choose the exact encoder for your needs, saving you time, money and frustration.
Absolute Encoders
Absolute encoders provide position information for a rotating shaft. There are also two types of absolute encoders: single turn and multi-turn. Single turn absolute encoders provide information for any increment within one shaft rotation. Multi- turn absolute encoders retain absolute position data over the course of multiple shaft rotations. The encoder provides a unique digital code or bit for each increment of shaft rotation. Multi-turn absolute encoders store turns-counting information for instant retrieval, even after power down. MSI TEC provides single-turn and multi-turn absolute shaft encoders with a variety of housing sizes, shaft diameters, signal types and resolution.
Model A36HB
Multi-turn blind hollow bore encoder
Size 36 mm (1.42")
SSI or CANopen®
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Model A36SB
Multi-turn shaft encoder
Size 36 mm (1.42") package
SSI or CANopen® communications
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Model 960
Single-turn shaft encoder
Low profile 1.55" single turn
Blind hollow or thru-bore
Parallel outputs
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Model A58SE
Single or multi-turn absolute shaft encoder
∅58 mm (2.28")
EtherCAT® or PROFINET®
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Model A58HE
Single or multi-turn absolute shaft encoder
∅58 mm (2.28")
EtherCAT® or PROFINET®
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Model A58HB
Single or multi-turn absolute blind hollow bore encoder
∅58 mm (2.28")
SSI or CANopen®
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Model A25SB
Multi-turn absolute encoder
∅2.5"
SSI or CANopen® communications
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Model 925
Robust Size 25 (2.5") single-turn absolute shaft encoder
Up to 12 bits with parallel outputs
IP67 sealing available
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Incremental Encoders
Incremental signals provide a series of high and low waves that indicate movement from one position to the next. there is no special indication provided by the encoder to show the specific position, only an indication that the position has changed.
Incremental encoders are available in two basic output types: single channel and quadrature. a single channel encoder, often called a tachometer, is normally used in systems that rotate in only one direction and require simple position and velocity information. Quadrature encoders have dual channels (a and B) phased 90 electrical degrees apart. these two output signals determine the direction or rotation by detecting the leading or lagging signal in their phase relationship. Quadrature encoders provide high speed bi-directional information for complex motion control applications.
Model 802S
Size 20 stainless steel
IP67 sealing available
80 lb maximum axial and radial shaft loading
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Model A58HB
Compact high-performance encoder
Low-profile ∅1.5"
Resolutions up to 10,000 CPR
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Model A25SP
Programmable resolution, waveform & output type
Size 25 (2.5") shaft encoder
IP67 Sealing available
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Model 925
The original industry-standard cube encoder
5 versatile housing styles
Bi-directional, constant pulse width
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Thru-Bore / Motor Mount Encoders
Incremental encoders provide position information for a rotating shaft by producing a continuous series of pulses. These pulses correspond to increments of resolution on the code disk. Incremental thru-bore and hollow-bore encoders are designed to mount directly to a rotating shaft which passes through the encoder. A flexible tether mount keeps the encoder from rotating with the shaft and absorbs shaft run-out or endplay, minimizing loads on the encoder bearings. Motor-mount style encoders feature a machined housing that attaches a hollow-bore encoder to the NEMA frame motor. To meet varied industrial feedback requirements, EPC offers a broad range of incremental thru-bore and motor mount encoders.
Model 15T/H Accu-Coder™
High-performance, economical encoder
Low profile – 1.0" height and 1.5" diameter
Thru-bore or blind hollow bore with bores up to 0.375" (10 mm)
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Model 755A Blind Hollow Bore
Compact 1.5" incremental encoder
Resolutions up to 30,000 CPR
Flex mounting & large hollow bore option (up to 0.750")
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Model 755A NEMA Motor Mount
All metal housing
Easy installation on NEMA Size 23 or 34 motors
Up to 30,000 CPR
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Model 121 Accu-Coder™
Thru-bore modular encoder
Auto-aligning for high RPMs
Up to 12 pole commutation
0° to 100° C operating temperature available
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Downloads
Selecting Digital Encoder Outputs
Learn how to accurately specify channels and output type.
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Encoders in Inhospitable Environments
Protecting your encoders in harsh operating conditions.
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