EMS22D31-B28-LW2 datasheet, PDF

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EMS22D31-B28-LW2: DescriptionROTARY OPTICAL POSITION ENCODER; CategoryLED optoelectronic/LED; File Size324KB，4 Pages; ManufacturerBourns; Websitehttp://www.bourns.com

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EMS22D31-B28-LW2 Overview

ROTARY OPTICAL POSITION ENCODER

EMS22D31-B28-LW2 Parametric

Parameter Name	Attribute value
Number of functions	1
Minimum operating temperature	-40 Cel
Maximum operating temperature	125 Cel
Processing package description	ROHS COMPLIANT PACKAGE-6
state	Active
Optoelectronic device type	ROTARY POSITION ENCODER
terminal coating	NOT SPECIFIED

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Features

■

3.3 and 5 VDC voltage supply option

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Direction/Step output (Tachometer)

■

Bushing or servo mount

■

Non-contacting magnetic technology

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Small size

■

CMOS and TTL compatible

■

Resolution from 64-512 PPR

■

Long life

■

High operating speed

■

Highly repeatable

■

Sealed option

■

Magnetic technology

EMS22D - Non-Contacting Direction/Step Encoder

Electrical Characteristics

Resolution ........................................................................................................................................................................................................... 64 to 512 PPR

Insulation Resistance (500 VDC) ......................................................................................................................................................................1,000 megohms

Electrical Travel ........................................................................................................................................................................................................ Continuous

Supply Voltage ........................................................................................................................................................................5.0 VDC ±10 %, 3.3 VDC ±10 %

Supply Current .................................................................................................................................................................................................20 mA maximum

Output Voltage

Low Output Level ................................................................................................................................................................................. Vss+0.4 V maximum

High Output Level................................................................................................................................................................................... Vdd-0.5 V minimum

Output Current

With 4.5 VDC Supply Voltage .......................................................................................................................................................................4 mA maximum

With 3.0 VDC Supply Voltage .......................................................................................................................................................................2 mA maximum

Rise/Fall Time (Incremental Output) ............................................................................................................................................................... 500 ns maximum

Shaft RPM (Ball Bearing) .........................................................................................................................................................................10,000 rpm maximum

Hysteresis............................................................................................................................................................................................................................ 0.7 °

Accuracy

Nominal ..........................................................................................................................................................................................................±0.7 ° or better

Worst Case................................................................................................................................................................................................................... ±1.4 °

Output Transition Noise................................................................................................................................................................................... 0.12 ° RMS max.

Environmental Characteristics

Operating Temperature Range........................................................................................................................................ -40 ºC to +125 ºC (-40 °F to +257 °F)

Storage Temperature Range ........................................................................................................................................... -55 °C to +125 °C (-67 °F to +257 °F)

Humidity ....................................................................................................................................................................MIL-STD-202, Method 103B, Condition B

Vibration .............................................................................................................................................................................................................................. 15 G

Shock .................................................................................................................................................................................................................................. 50 G

Rotational Life

S Bushing (@1,000 rpm)................................................................................................................................................................. 100,000,000 revolutions

T & W Bushings (@1,000 rpm with 250 g side load) ........................................................................................................................ 50,000,000 revolutions

IP Rating ............................................................................................................................................................................................................................. IP 65

Mechanical Characteristics

Mechanical Angle ............................................................................................................................................................................................ 360 ° Continuous

Torque

Starting .................................................................................................................................................................................... 43 ±21 g-cm (0.6 ±0.3 oz-in.)

Running ................................................................................................................................................................................... 29 ±14 g-cm (0.4 ±0.2 oz-in.)

Mounting Torque.........................................................................................................................................................................................203 N-cm (18 lb.-in.)

Shaft End Play......................................................................................................................................................................0.30 mm (0.012 ”) T.I.R. maximum

Shaft Radial Play ..................................................................................................................................................................0.12 mm (0.005 ”) T.I.R. maximum

Weight ..............................................................................................................................................................................................................11 gms. (0.4 oz.)

Terminals ......................................................................................................................................................................................... Axial, radial or ribbon cable

Soldering Condition

Manual Soldering .................................................................................................................... 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire

370 °C (700 °F) max. for 3 seconds

Wave Soldering ............................................................................................................................................. 96.5Sn/3.0Ag/0.5Cu solder with no-clean ﬂux

260 °C (500 °F) max. for 10 seconds

Wash processes ....................................................................................................................................................................................... Not recommended

Marking.................................................................................................................................... Manufacturer’s trademark, name, part number, and date code.

Hardware ....................................................................One lockwasher and one mounting nut supplied with each encoder, except on servo mount versions.

Pin Conﬁguration

Output Type

Direction/Step

Pin 1

Pulse

Pin 2

Direction

Pin 3

GND

Pin 4

Index

Pin 5

VCC*

Pin 6

CS**

* Can be 5 or 3.3 VDC depending on the version.

** Active low chip select pin; if not used connect pin 6 to GND.

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

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