Series E23 Incremental Encoders


Series E23 Encoder

 E23 Incremental Encoders
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Quick Specs...

  • Compact Size 23 encoder
  • Up to 2540 PPR with optional marker pulse
  • Economical high performance

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Overview Industry/Application Specifications Related Info  

Overview / Design Principle:

A pre-wired cable or terminal screw connections are included with either servo clip or face mounting options.

Its bidirectional and optional marker pulse, current sink or differential line driver outputs are compatible with most electronic counters, instruments, PLC’s, robot controls, CNC’s, and industrial computers. The E23 encoder is mechanically interchangeable with other Size 23 encoders on the market.

Features and Benefits:

Mechanical / Environmental Features

  • 1/4" stainless steel shaft
  • Low inertia, low starting torque
  • Up to 5000 RPM
  • 0 to 70°C operating range
  • Outline dimensions: 2.3" Dia. x 1.65" L.

Electrical Features

  • Shielded cable or terminal screw options
  • Up to 2540 pulses per revolution
  • Bidirectional outputs and gated marker available
  • 100 kHz frequency response
  • 5-26 VDC supply voltage
  • Single LED light source

The Dynapar Advantage:

  • Innovative, high quality leading edge technology encoder products
  • Broad commercial - industrial grade product line
  • Fast 3 Day Delivery and customized built to order solutions available
  • Global Manufacturing & Service Support
  • Fast-Friendly Customer Service & Technical Support with Multi-Lingual Capabilities
  • Global Network of Authorized Resellers
  • Competitive Product Warranty:  2 Years  


The Series E23 encoder is a high resolution, optical incremental encoder designed for light industrial and commercial applications. A standard Size 23 (2.3" dia.), E23 incremental encoders are ideal for machine and equipment designs with limited space and high performance requirements.

Typical Applications:

  • Motor mounted feedback for servo systems
  • Assembly machines
  • Robotics and material handling
  • Printers, X/Y plotters, and phototypesetters
  • Semiconductor I.C. bonders
  • Medical diagnostic equipment (X-ray & CAT scanners)
  • Position and/or velocity input for CNC’s, PLC’s, motion controllers, etc.
Standard Operating Characteristics
Code: Incremental
Resolution: 1 to 2540 PPR (pulses/revolution)
Accuracy: (Worst case any edge to any other edge) ± 2.5 arc-min.
Format: Two channel quadrature (AB) with optional Index (Z) outputs
Phase Sense: A leads B for CW or CCW shaft rotation as viewed from the shaft end of the encoder, see Ordering Information
Quadrature Phasing: 90° ± 18° electrical
Symmetry: 180° ± 9° electrical
Index: 180° ± 9° electrical, gated with B
Waveforms: Squarewave with rise and fall times less than 1 microsecond into a load capacitance of 1000 pf

Input Power: Open Collector or Totem Pole outputs: 4.5 VDC min. to 26 VDC max. at 200 mA max.;
Line Driver: 4.5 VDC min. to 26 VDC max. at 80 mA max.
Outputs: Open Collector 7273: VOH: 30 V max.; VOL: 0.4 V max. at 20 mA sink
Totem Pole, Line Driver 7272: 40 mA min. sink or source
4469 Differential Line Driver: 100 mA, sink or source
Frequency Response: 100 kHz min.

Shaft Loading: 5 lbs. max. radial and axial
Shaft Speed: 5,000 RPM max.
Starting Torque: 0.2 oz-in max. at 25 °C
Moment of Inertia: 3.7 x 10-4 oz-in-sec2
Weight: 13 oz. max.

Operating Temperature: 0 to +70 °C
Storage Temperature: -40 to +80 °C
Humidity: to 98% without condensation
Shock: 50 G's for 11 msec duration
Vibration: 5 to 2000 Hz at 2 G's
Enclosure Rating: NEMA12/IP54 (dirt tight, splashproof)

Electrical Connections
Note: Wire color codes are referenced here for models that are specified with pre-wired cable.
Single Ended
Term. Function (If Used) Wire Color Code
A Signal A BRN
B Signal B ORN
C Signal Z YEL
D Power Source RED
E No Connection
F Common BLK
G Case GRN
Term. Function (If Used) Wire Color Code
A Signal A BRN
B Signal B ORN
C Signal Z YEL
D Power Source RED
E No Connection
F Common BLK
G Case GRN
H Signal ¯A BRN/WH
I Signal ¯B ORN/WH
J Signal ¯Z YEL/WH

Available Specifications:

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