E2 Optical Kit Encoder

Please see the EM1 Component Change Notice.
1 / 5
  • E2 Optical Kit Encoder
  • E2 Optical Kit Encoder
  • E2 Optical Kit Encoder
  • E2 Optical Kit Encoder
  • E2 Optical Kit Encoder

Overview

  • Quick, simple assembly and disassembly
  • Rugged screw-together housing
  • Accepts .010" axial shaft play
  • Tracks from 0 to 300000 cycles/sec
  • 32 to 1250 cycles per revolution (CPR)
  • 128 to 5000 pulses per revolution (PPR)
  • 2 channel quadrature TTL squarewave outputs
  • Optional index (3rd channel)
  • -40 to +100C operating temperature
  • Mounting compatibility with Agilent HEDS-5500

The E2 is a rotary encoder with a molded polycarbonate enclosure, which utilizes either a 5-pin locking or standard connector.This optical incremental encoder is...

Read more

Product Specifications

ParameterValueUnits
Operating Temperature -40 to 100 C
Vibration (5Hz to 2kHz) 20 G
Electrostatic Discharge, Human Body Model ± 4 kV

 

ParameterValueUnits
Max. Shaft Axial Play ±0.010 in.
Max. Shaft Eccentricity Plus Radial Play (1) 0.004 in.
Max. Acceleration 250000 rad/sec²
Max. RPM (2)
e.x. CPR=1250, max. rpm=14400
e.x. CPR=100, max. rpm=60000		 minimum value of ((18 x 10^6) / CPR) and (60000) rpm
Typical Product Weight 0.56 oz.
Codewheel Moment of Inertia 8.0 x 10^-6 oz-in-s²
Hub Set Screw #4-48  
Hex Wrench Size 0.050 in.
Encoder Base plate Thickness 0.135 in.
3 Mounting Screw Size #0-80  
2 Mounting Screw Size #2-56 or #4-40  
3 Screw Bolt Circle Diameter 0.823 ± 0.005 in.
2 Screw Bolt Circle Diameter 0.750 ± 0.005 in.
Required Shaft Length (3)
  With E-option
  With H-option		 0.445 to 0.570
0.445 to 0.795
> 0.445		 in.
in.
in.
Index alignment to hub set screw 180 ± 5 mechanical degrees

(1) Position inaccuracy is proportional to shaft radial play.

(2) 60000 rpm is the maximum rpm due to mechanical considerations. The maximum rpm due to the module's 300kHz maximum count frequency is (18 x 10^6) / CPR.

(3) Add 0.125" to the required shaft length when using R-option.

 

ParameterTorque
Hub Set Screw to Shaft 2-3 in-lbs
Cover (4-40 screws through cover into base) 2-4 in-lbs
Base to Mounting Surface 4-6 in-lbs
Base to Mounting Adapter Plate 4-6 in-lbs
Adapter Plate to Mounting Surface (4-40 screws) 4-6 in-lbs
Module to Base 3.5-4 in-lbs

B leads A for clockwise shaft rotation, and A leads B for counterclockwise rotation viewed from the cover/label side of the encoder.

  • Specifications apply over entire operating temperature range.
  • Typical values are specified at Vcc = 5.0Vdc and 25°C.
  • For complete details, see the EM1 product page.
ParameterMin.Typ.Max.UnitsConditions
Supply Voltage 4.5  5.0 5.5 V  
Supply Current   27 30 mA CPR < 500, no load 
  55 57 mA CPR ≥ 500, no load
Low-level Output     0.5 V IOL = 8mA max.
High-level Output 2.0     V IOH = -8mA max.
4.2 4.8   V no load
Output Current Per Channel -8   8 mA
Output Rise Time   110   nS  
Output Fall Time   35   nS  
PinDescription
1 Ground
2 Index
3 A channel
4 +5VDC power
5 B channel

Index

Provides a single pulse per revolution.

3-option_5.jpg3-option

 

3-option makes all five of these hole diameters .125". If desired, the two .096" diameter recesses will mate with matching aligning pins. The .438" diameter center hole can also mate with a motor boss.

a-option_0.jpgA-option

 

A-option adds a .497" diameter alignment shoulder designed to slip into a .500" diameter recess in the mounting surface centered around the shaft.

e-option_2.jpgE-option

 

The E-option provides a cylindrical extension to the cover allowing for longer shafts of up to .795".

g-option_0.jpgG-option

 

This option includes molded ears on the base which enable it to be mounted to a 1.812" diameter bolt circle. The mounting holes are designed to fit 4-40 screws. Because the ears are molded to the base this does not increase the thickness of the encoder and does not add to the required shaft length. This option will work with shaft lengths of .445" to .570".

h-option_1.jpgH-option

The H-option adds a hole to the cover for the shaft to pass through.

Shafts <.375", a .375" diameter hole is supplied.

Shafts >=.375", a .500" diameter hole is supplied.

r-option_0.jpgR-option

 

This adapter is an 1/8" thick fiberglass adapter which is pre-mounted to the base of the encoder. It allows the E2 to be rotated 15° while operating for index orientation. Use three 4-40 x 1/4" screws (sold separately). When installing the hub, rotate the index to the approximate position. After assembly, with the 3 screws loose, rotate while operating to the desired index location and tighten. Note that this adds 1/8" to the required shaft length.

t-option_1.jpgT-option

 

When mounting holes are not available, a pre-applied transfer adhesive (with peel-off backing) is available for "stick-on" mounting. Use the centering tool (sold separately) to slide the base into position. T-option specifies transfer adhesive on the standard mounting base. A centering tool is highly recommended when using transfer adhesive.

Instructions: To use transfer ahesive, peel off paper backing and slip tool into center hole of base and slide both down shaft as one piece. Press to form a good bond, then slip tool off and continue with standard mounting instructions.

1. Centering Tool

The centering tool is only included with the -3 packaging option. It has to be ordered separately for other packaging options.

Part #: CTOOL - (Shaft Diameter)
Description: This reusable tool provides a simple method for accurately centering the E2 base onto the shaft, promoting hub to base concentricity and thus accuracy. It is recommended for the following situations:

  • When using mounting screws smaller than #4-40.
  • When the position of the mounting holes is in question.
  • When using the 3-hole mounting pattern.
  • When using the T-option transfer adhesive.

Instructions: When mounting encoder base, slide centering tool down shaft until it slips into centering hole of encoder base. Tighten mounting screws, then remove centering tool.

2. Hex Tool

Depending on the order packaging option, either a hex driver or hex wrench is included.

Part #: HEXD-050 (only included with -B or -1 packaging options)
Description: Hex driver, 0.050" flat-to-flat for #3-48 or #4-48 set screws.

Part #: HEXW-050 (only included with -2 or -3 packaging options)
Description: Hex wrench, 0.050" flat-to-flat for #3-48 or #4-48 set screws.

3. Spacer Tool

A spacer tool is included for all packaging options.

Part #: SPACER-96
Description: For shafts ≤ 0.315"

Part #: SPACER-4192
Description: For shaft sizes 0.375" or 10mm

4. Screws

Screws for base mounting must be purchased separately. Screws for mounting the housing to the base are included.

Part #: SCREW-080-250-PH
Description: Pan Head, Cross Drive #0-80 UNF x 1/4"
Quantity Required for Mounting: 3 per encoder

Part #: SCREW-256-250-PH
Description: Pan Head, Cross Drive #2-56 UNC x 1/4"
Quantity Required for Mounting: 2 per encoder

Part #: SCREW-440-250-PH
Description: Pan Head, Cross Drive #4-40 UNC x 1/4"
Quantity Required for Mounting: 2 per encoder

Link to E2 Assembly Instructions:

http://www.usdigital.com/support/assembly/e2-assembly

 

Product Description

Restriction of Hazardous Substances

The E2 is a rotary encoder with a molded polycarbonate enclosure, which utilizes either a 5-pin locking or standard connector.This optical incremental encoder is designed to easily mount to and dismount from an existing shaft to provide digital feedback information.

The E2 is easy to add to existing applications and only consists of four main components; base, cover, hub/code wheel and optical encoder module.

The E2 is normally designed for applications of 10 feet or less. For longer cable lengths, adding a PC4 / PC5 differential line driver is recommended.

The base and cover are both constructed of rugged 20% glass filled polycarbonate. Attachment of the base to a surface may be accomplished by utilizing one of several machine screw bolt circle options.  Positioning of the base to the centerline of a shaft is ensured by use of a centering tool (sold separately). The cover is securely attached to the base with two 4-40 flat head screws to provide a resilient package protecting the internal components.

The internal components consist of a shatterproof mylar disk mounted to a precision machined aluminum hub and an encoder module. The module consists of a highly collimated solid state light source and monolithic phased array sensor, which together provide a system extremely tolerant to mechanical misalignments. 

Connection to the E2 product is made through either a 5-pin locking or standard connector (sold separately). The mating connectors are available from US Digital with several cable options and lengths.

Avago / Agilent Direct Replacements:

US Digital's E2 encoder may now be used as direct replacements for Avago / Agilent's HEDS-5500, HEDS-5505, HEDS-5540, HEDS-5545, HEDS-5600, HEDS-5640, HEDS-5645.

Related
Product Notes
  • US Digital warrants its products against defects in materials and workmanship for two years. See complete warranty for details.

Purchasing

Configure and Purchase

1. CPR
2. Bore
3. Index


4. Cover



5. Base






6. Packaging




Product Part Number

This product requires configuration. Please supply the product options above.

Please configure your product for 3D model downloads.

Quantity Base Price
1 $51.50
10 $43.09
50 $35.63
100 $30.97
Over 100 Call for quote
Quantity
Unit Price

$51.50

Subtotal

$51.50

For your convenience, use the above part number to order via phone 800.736.0194

Best Sellers

Related Products & Accessories