E2 Motor Encoder

E2 Webproduct 01 Product Photo

E2 Features

  • Kit version for mounting on a motor or other shaft
  • Supports 14 shaft sizes (2 to 10 mm and 1/8 to 3/8 in.)
  • For NEMA 17 to NEMA 34 and larger motors
  • 11 Resolutions from 32-5000 CPR (128-20,000 PPR)
  • 2 channel quadrature TTL square wave output
  • Optional Index channel
  • Choice of 5 base styles and 3 cover options
  • Mounting compatibility with HEDS-5500
  • High retention connector/cable (sold separately)

See more info below

Configure the E2

US Digital E2 Motor Encoder Description

Restriction of Hazardous Substances

The US Digital E2 motor encoder mounts directly to a motor or other rotating shaft. This optical encoder features a rugged, glass-filled polymer housing and is designed for easy installation and removal.

The E2 rotary encoder contains a precision machined aluminum hub with a specially patterned Mylar disk. This disk, in combination with our proprietary optical encoder module, creates a system that is highly tolerant to mechanical misalignment. 

The E2 is available with five base configurations and three cover styles, which allow it to fit a wide range of applications. The output for this optical rotary encoder is single-ended. If your application requires a differential output (due to needing a cable over 10 feet or is located in an electrically noisy environment) you can either add a PC4 / PC5 differential line driver or check out our E5, which includes an optional differential output. This incremental encoder is designed for use with a high-retention or standard connector/cable, which are sold separately.

BROADCOM/AVAGO REPLACEMENTS:

US Digital's E2 encoder may be used as direct replacements for Avago HEDM-5500, HEDM-5600, HEDS-5500, HEDS-5600.

Product Specifications

ENVIRONMENTAL

PARAMETER VALUE UNITS
Operating Temperature, CPR < 2000 -40 to 100 C
Operating Temperature, CPR ≥ 2000 -25 to 100 C
Electrostatic Discharge, IEC 61000-4-2 ± 4 kV
Vibration (10Hz to 2kHz, sinusoidal) 20 G
Shock (6 milliseconds, half-sine) 75 G

MECHANICAL

PARAMETER VALUE UNITS
Max. Shaft Axial Play ±0.010 in.
Max. Shaft Runout 0.004 T.I.R. in.
Max. Acceleration 250000 rad/sec²
For CPR ≤ 1250:
Max. RPM (1)
Max. A/B Frequency
e.x. CPR=1250, Max. RPM=14400
e.x. CPR=100, Max. RPM=60000
minimum value of ((18 x 10^6) / CPR) and (60000)
300
RPM
kHz
For CPR = 2000, 2048, 2500:
Max. RPM (1)
Max. A/B Frequency
minimum value of ((21.6 x 10^6) / CPR) and (60000)
360
RPM
kHz
For CPR = 4000, 4096, 5000:
Max. RPM (1)
Max. A/B Frequency
minimum value of ((43.2 x 10^6) / CPR) and (60000)
720
RPM
kHz
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 (2)(3)
  With E-option (3)
  With H-option		 0.445 to 0.575
0.445 to 0.805
> 0.445		 in.
in.
in.
Index Alignment to Hub Set Screw 180 Typical degrees
Technical Bulletin TB1001 - Shaft and Bore Tolerances Download

 

(1) 60000 RPM is the maximum rpm due to mechanical considerations. The maximum rpm due to the module's maximum frequency response is dependent upon the module’s resolution (CPR).

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

(3) Including Axial play.

TORQUE SPECIFICATIONS

PARAMETER VALUE TORQUE
Hub Set Screw 2-3 in-lbs
Cover Screw 2-4 in-lbs
Base Mounting Screw (#0-80) 1-2 in-lbs
Base Mounting Screw (#2-56) 2-3 in-lbs
Base Mounting Screw (#4-40) 4-6 in-lbs
Adapter Plate Mounting Surface (#2-56 screws) 2-3 in-lbs
Adapter Plate Mounting Surface (#4-40 screws) 4-6 in-lbs

PHASE RELATIONSHIP

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

ELECTRICAL

  • Specifications apply over the entire operating temperature range.
  • Typical values are specified at Vcc = 5.0Vdc and 25°C.
  • For complete details, see the EM1 or EM2 product pages.
PARAMETER MIN. TYP. MAX. UNITS CONDITIONS
Supply Voltage 4.5  5.0 5.5 V  
Supply Current   27 33 mA CPR < 500, no load 
  54 62 mA CPR ≥ 500 and < 2000, no load
  72 85 mA CPR ≥ 2000, no load
Low-level Output     0.5 V IOL = 8mA max., CPR < 2000
    0.5 V IOL = 5mA max., CPR ≥ 2000
  0.25   V no load, CPR ≥ 2000
High-level Output 2.0     V IOH = -8mA max. and CPR < 2000
2.0     V IOH = -5mA max. and CPR ≥ 2000
  4.8   V no load and CPR < 2000
  3.5   V no load and CPR ≥ 2000
Output Current Per Channel -8   8 mA CPR < 2000
-5   5 mA CPR ≥ 2000
Output Rise Time   110   nS CPR < 2000
  50   nS CPR ≥ 2000, ± 5mA load
Output Fall Time   100   nS CPR < 2000
  50   nS CPR ≥ 2000, ± 5mA load

PIN-OUT

PIN DESCRIPTION
1 Ground
2 Index
3 A channel
4 +5VDC power
5 B channel

Note: 5-pin single-ended mating connector is CON-C5 or CON-LC5

ACCESSORIES

1. Centering Tool

Part #: CTOOL - (Shaft Diameter)
This reusable tool centers the shaft within the encoder base during assembly. It must be used for the proper functioning of the encoder.

2. Hex Tool

Part #: HEXD-050  
Hex driver, 0.050" flat-to-flat for #3-48 or #4-48 set screws. Included with -B or -1 packaging options for order quantities of 10 or more.

Part #: HEXW-050
Hex wrench, 0.050" flat-to-flat for #3-48 or #4-48 set screws. Included with -B or -1 packaging options for order quantities of 9 or less. Included with -3 packaging option for all order quantities.

3. Spacer Tool

Part #: SPACER-E2
This reusable tool sets the correct spacing between the disk and sensor during assembly. It must be used for the proper functioning of the encoder.

4. Screws

Part #: SCREW-080-250-PH
Description: Pan Head, Philips #0-80 UNF x 1/4"
Use: Base Mounting
Quantity Required: 3
Screws are not included

Part #: SCREW-256-250-PH
Description: Pan Head, Philips #2-56 UNC x 1/4"
Use: Base Mounting
Quantity Required: 2
Screws are not included

Part #: SCREW-440-250-PH
Description: Pan Head, Philips #4-40 UNC x 1/4"
Use: Base Mounting
Quantity Required: 2
Screws are not included

Part #: SCREW-440-625-PH
Description: Pan Head, Phillips 4-40 UNC x 5/8"
Use: Cover Mounting
Quantity Required: 2
Screws are included

Part #: SCREW-448-063-SS
Description: Socket Head Set Screw, 4-48 UNC x 1/16"
Use: Hub/Disk Mounting for 5/16" - 10mm Bore
Quantity Required: 1
Screw is included

Part #: SCREW-448-125-SS
Description: Socket Head Set Screw, 4-48 UNC x 1/8"
Use: Hub/Disk Mounting for 2mm - 1/4" Bore
Quantity Required: 1
Screw is included

OUTPUT WAVEFORMS

Single-ended Output Waveform

PRODUCT CHANGE NOTIFICATIONS

Title Date Description Download
E2 & H1 Material Change - 7191 8/22/2022 As part of our ongoing continuous improvement program, as well as considering the current state of the plastics industry supply chain disruptions, US Digital has decided to focus on the standardization of our plastic encoder components. Based on this, the E2 and the H1 encoder covers and bases will be changing from PBT 20% GF
(polybutylene terephthalate) to PC 20% GF (polycarbonate). This change has no impact on the form, fit and function of these encoders.		 Download
E2, E5 Packaging - PCN 7190 8/31/2021 As part of our ongoing continuous improvement efforts, US Digital is implementing a change to the individual packaging options of our E2 and E5 kit encoders. It is important to note that this change will not affect the bulk packaging option, also known as our “B” packaging option. Download
HUBDISK-1 Packaging Change Notification - PCN 6297 4/30/2018 As part of our ongoing continuous improvement efforts, US Digital is implementing a change to the packaging of our 1-inch Hubdisk assemblies.

We are replacing the current plastic tube packaging with a 25-count plastic tray. The tray is a two-piece design with a snap-on lid and anti-static coated for ESD-sensitive environments. This change is designed to enhance the ease of handling for our customers, easy removal of the individual hubdisk, and protection against potential damage due to long-term storage of hubdisk assemblies.

This change does not affect the form, fit, or function of the final product.		 Download
Hub Set Screw Production Change - PCN 5367 7/20/2015 As part of our ongoing continuous improvement efforts, US Digital is implementing a change related to the production of our 5/16" (.313), 8mm (.315), 3/8" (.375), and 10mm (.394) HUBDISK assemblies. We are adding a low-strength threadlocker to the set screw during our assembly process to assist in securing the set screw in the hub during transportation. This will aid in the set screw retention of these specific hub sizes; ensuring the retention is sufficient and avoid the potential of them backing out of the hub assembly during transit. This change does not affect form, fit, or function. Download
E2 Mold Update - PCN 5258 4/22/2015 As part of our ongoing continuous improvement efforts, and in order to enhance both function and appearance of the E2 product line, multiple improvements are being incorporated into a plastic component redesign.

 Download
EM1 & EM2 Update - PCN 4199 1/14/2014 Based on our continuous process improvement program, US Digital is changing the current marking method for our EM1 and EM2 encoder modules to a serialization method. This change will allow for each module to have a unique code; the current marking method is based on a date code system that includes all encoder modules produced within a specific week/year. The serialization system will be based on a hexadecimal system. Download
EM1 LED Die - PCN 1016 2/7/2013 As part of US Digital's continual assurance of supply strategy, we have qualified additional sources for our LED die used in our EM1 encoder module, which in turn impacts all of the following products:

EM1, E2, E3, E5, E6, H1, H15, H3, H5, H6, HB5M, HB6M, HD25, PE, S1, S2, S5, S6, T5 and T6

The device specification will remain the same, i.e. there will be no change to form, fit, or function of the product(s) as specified by US Digital. The appropriate quality and reliability testing have been performed on representative products to ensure normal parametric distribution, consistent with US Digital's quality and reliability standards.		 Download

Additional Information

Product Notes

  • US Digital® warrants its products against defects in materials and workmanship for two years. See complete warranty for details.
  • Cables and connectors are not included and must be ordered separately.

Datasheets

Assembly Instructions & Videos

Related Pages

3D Model Downloads

Please configure your product first to download a 3D model.
(Note: The formats below will become links if there are 3D models available.)

    • SolidWorks Format
    • IGES Format
    • Parasolid Format
    • STEP Format

    Product Configurator

    TO VIEW PRICING CHOOSE EITHER OPTION 1 OR 2 BELOW.

    Questions? Contact our support team.

    Option 1: Enter the Product Part Number

    Already have your part number (e.g., E5-5000-394-IE-S-D-D-3)? Enter it in the following field.

    Option 2: Build your Product

    Customize your product step-by-step. Need help? Our support team is here to help.

    We recommend enabling Javascript when using the product configurator.

    To request a quote or purchase, call or email us with the part number(s) or PDF(s) of your configured part(s)—we will respond promptly.

    Important: Include the contact information requested in the PDF(s) to avoid delays.

    Feedback

    US Digital's mission is a commitment to quality and constant improvement. If you find an error to a product on this page, please let us know!

    Compare Items (Max 3):