E4P OEM Miniature Optical Kit Encoder

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  • E4P OEM Miniature Optical Kit Encoder
  • E4P OEM Miniature Optical Kit Encoder
  • E4P OEM Miniature Optical Kit Encoder
  • E4P OEM Miniature Optical Kit Encoder
  • E4P OEM Miniature Optical Kit Encoder

Overview

  • Miniature size
  • Push-on hub - spring loaded collet design
  • Minimum shaft length of .375"
  • Fits shaft diameters of .059" to .250"
  • Accepts +/-.020" Axial shaft play
  • Off-axis mounting tolerance of .010"
  • 100 to 360 cycles per revolution (CPR)
  • 400 to 1440 pulses per revolution (PPR)
  • Single +5V supply

On January 16, 2012, the E4P part number was modified. Please see the E4P Part Number Change notification for more information.  The E4P miniature encoder is designed to provide digital quadrature encoder feedback for...

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Product Specifications

ParameterValueUnits
Vibration (5Hz to 2kHz) 20 G
Max. Relative Humidity 90 %
Storage Temperature -40 to 100 C
Operating Temperature -20 to 100 C
Electrostatic Discharge, Human Body Model 
Single-ended (S-option)
Differential (D-option)
± 8
± 15
kV

 

ParameterValueUnits
Max. Shaft Axial Play ± .020 in.
Max. Off-axis Mounting Tolerance ± .010 in.
Shaft to Mounting Surface Perpendicularity 90 ± 1 deg.
Max. Acceleration 250000 rad/sec²

Maximum RPM (1)
e.x. CPR = 360, max. rpm = 10000
e.x. CPR = 100, max. rpm = 36000

 minimum value of
(3600000/CPR)
and (60000)		 rpm
Codewheel Moment of Inertia 3.36 x 10^-6 oz-in-s²
Mounting Screw Size
Default (D-option base)
Metric (M-option base)
#3-48 x 1/4"
M2.5x.45mm, length 6mm		  
Screw Bolt Circle Diameter .586 ±.002 in.
Axial Length of Codewheel .270 in.
Required Shaft Length (2) .375 to .395 in.
Mounting Screw Torque 2-3 in-lbs

(1) 60000 rpm is the maximum rpm due to mechanical considerations. The maximum rpm due to the module's 60kHz maximum count frequency is (3600000/CPR).

(2) Includes axial play.

 

SpecificationsMin.Typ.Max.UnitsNotes
Supply Voltage 4.5 5.0 5.5 V  
Supply Current   21 27 mA no load
Low-level Output     0.4 V IOL = 6 mA
High-level Output 2.4     V IOH = -1 mA
Rise Time   500   ns CL = 25 pF, RL = 2.7 kΩ
Fall Time   100   ns
SpecificationsMin.Typ.Max.UnitsNotes
Supply Voltage 4.5 5.0 5.5 V  
Supply Current   23 29 mA no load
Differential Output Voltage 3.0 3.8   V RL = 100 ohm
Differential Output Rise/Fall Time     20 ns

e_series_output_0.gif  

ParameterTyp.Units
Symmetry, S 180 ± 16 electrical degrees
Quadrature Delay, Q 90 ± 12 electrical degrees

A leads B for clockwise shaft rotation, B leads A for counter clockwise shaft rotation viewed from the shaft/bushing side of the encoder.

4-pin Single-ended6-pin Differential
PinDescriptionPinDescription
1 +5VDC power 1 Ground
2 A channel 2 A channel
3 Ground 3 A- channel
4 B channel 4 +5VDC power
    5 B channel
    6 B- channel

H-option (Hole In Cover)

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

  • For shaft diameters of 1.5mm to 1/8", a 0.170" hole is supplied.
  • For shaft diameters of 5/32" to 1/4", a 0.295" hole is supplied.

M-option (Metric Mounting Screws)

Provides alternate metric M2.5x.45mm, length 6mm screws. When M-option is NOT specified the default is #3-48 x 1/4" screws.

T-option (Transfer Adhesive)

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 (above) to position the base. T-option specifies transfer adhesive.

Before installation, cleaning the mounting surface with alcohol is recommended to remove dust and oil.

Download the E4P Assembly Instructions.

http://usdigital.com/assets/assembly/E4P Assembly Instructions.pdf

1. Centering Tool

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

Part #: MCTOOL - (Shaft Diameter)
Description: This reusable tool provides a simple method for accurately centering the E4P base onto the shaft. A centering tool is highly recommended when using the T-option transfer adhesive.

2. Spacer Tool

A spacer tool is included for all packaging options.

Part #: SPACER-E4P
Description: This reusable tool is used to properly space the codewheel from the encoder.

Title Date Description Download
E4 - E4P - S4 Update - PCN 1014 11/29/2011 We have modifed the E4, E4P and S4 product lines in order to improve the performance and durability of the encoder. Changes include new molds for the plastic base and cover parts with an over-molded bushing in the S4 base, a new SMT connector (compatible with current mating connector)and a modified PCB profile to accommodate the new connector and plastic part modifications. Download

Product Description

Restriction of Hazardous Substances

On January 16, 2012, the E4P part number was modified.
Please see the E4P Part Number Change notification for more information. 

The E4P miniature encoder is designed to provide digital quadrature encoder feedback for high volume applications with limited space constraints. The E4P version utilizes an innovative, patented push-on codewheel which accepts shaft diameters of 1.5mm to .250". 

The E4P encoder is the leader for high quantity OEM applications, but the E4 is the ideal choice when a set-screw codewheel encoder is required (see the E4 page).  

The E4P miniature encoder base provides mounting holes for two #3-48, length 1/4" or two M2.5x.45mm, length 6mm screws on a .586" bolt circle. When  mounting holes are not available, a pre-applied transfer adhesive (with peel-off backing) is available for "stick-on" mounting.

The encoder cover is easily snapped onto the base and is embossed with the connector pin-out.

The E4P series encoder can be connected by using a (high retention 4-conductor snap-in polarized 1.25mm pitch) connector. Mating cables and connectors (see the Cables / Connectors web page) are not included, and are available separately.

Related
Product Notes
  • Cables and connectors are not included and must be ordered separately.
  • 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. Output


5. Cover


6. Base



7. 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 $25.25
10 $19.84
50 $17.26
100 $15.21
Over 100 Call for quote
Quantity
Unit Price

$25.25

Subtotal

$25.25

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

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