IA
NT
Features
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3.3 and 5 VDC voltage supply option
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Quadrature, absolute, PWM and direction/
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Resolution from 32-512 PPR and 1024
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M
PL
step output options
Bushing or servo mount
Non-contacting magnetic technology
Small size
CMOS and TTL compatible
states
Long life
High operating speed
Highly repeatable
Sealed option
*R
oH
S
CO
EMS22 - Non-Contacting Rotary Magnetic Encoder
Electrical Characteristics
Resolution ................................................................................................................................................................................ 32 to 512 PPR and 1024 states
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
Linearity ........................................................................................................................................................................................................................... 0.35 %
Accuracy
Nominal ......................................................................................................................................................................................................... ±0.5 ° 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
A/B Quadrature
Direction/Step
PWM
Absolute
Pin 1
A
Pulse
PWM Signal
Digital Input
Pin 2
B
Direction
GND
Clock
Pin 3
GND
GND
GND
GND
Pin 4
Index
Index
GND
Digital Output
Pin 5
VCC*
VCC*
VCC*
VCC*
Pin 6
CS**
CS**
CS**
CS**
* Can be 5 or 3.3 VDC depending on the version.
** Active low chip select pin.
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications
DIY/Open Source Hardware
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