R20 Shaft Encoder
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R20 Shaft Encoder Specifications (73k)

other specifications are
listed in the modified versions table

Dimensions

See also R20-P Programmable
and HS20 Hollow Shaft Encoder

Series 20 with Heavy Duty Bearings

The model R20 is an optical shaft encoder in a 2" diameter  x 1-3/4" long housing that can be face mounted using three 6-32 x .25" deep mounting holes on a 1.75" diameter bolt circle. The shaft is up to 3/8" diameter, either single or double ended. Electrical connection is through a 16mm circular connector or an attached cable.

Model Number

R20 shaft Shaft
Style		 output type - pulses per revolution anti-jitter / supply voltage output circuit connector modification   accessories
 

3/8" diameter shaft is standard
A= 5/16" diameter
C= 1/4" diameter
M8= 8mm diameter
single ended shaft is standard
D= Double ended 3/8" shaft

 

Single pulse output on A is standard
Q=  Quadrature A and B outputs
Z= Outputs A and Z
QZ= Outputs A, B and Z
  1 to 1200 AJ = anti-jitter option

(single output only)

   5

8-30

7272 push/pull is standard
C= 7273 open collector
D= 7272 line driver

10' (3m) attached cable is standard
S= 16mm circular connector on side
Optional modification number

(see modified versions table below)

 

 see the accessories table below

 

Example: R20 - 15AJ / 8-30 is an Example: R20Q - 100 / 8-30DS is an
bulletR20 shaft encoder
bulletsingle pulse output with 15 pulses per revolution
bulletanti-jitter feature
bulletoperates on 8-30 vdc
bulletpush/pull output circuit
bulletattached 10' cable
bulletR20 shaft encoder
bulletquadrature (A and B) pulse outputs with 100 pulses per revolution on each output
bulletoperates on 8-30 vdc
bullet7272 line driver output circuit (+A/-A, +B/-B outputs)
bullet16mm circular connector

 

Standard Features and Options

bullet3/8" diameter shaft
bulletUnbreakable code disk
bulletUp to 1200 pulses per revolution
bulletAttached cable or optional connector
bulletHeavy duty bearings
bulletShort circuit and ESD protected

 

Accessories

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Measuring Wheels and Shaft Couplings - Mounting - Cables
085 = MB-085
3/8" to 1" rigid coupling

085.75 = MB-085.75
3/8" to 3/4" rigid coupling

085.375 = MB-085.375
3/8" to 3/8" rigid coupling

AE12 = AE100-12-12
3/8" to 3/8" flexible coupling

AE12,10mm = AE100-12-10mm
3/8" to 10mm flexible coupling

MW1 = MW-1-B wheels

MW30 = MW-30-B wheels

MW1R = MW-1R-B wheels

MW30R = MW-30R-B wheels

MW1W = Wide MW-1 wheels

MW30W = Wide MW-30 wheels

   5PY = MB-5PY adapter

FB2 = MB-FB2 flexible tether

FL = MB-FL adapter

FL3 = MB-FL3 adapter

FL4 = MB-FL4 adapter

FL6 = MB-FL6 adapter

KOYO = MB-KOYO adapter

M75 = MB-75 adapter

M76 = MB-76 adapter

M78 = MB-78 adapter

RD2 = MB-RD2 measuring wheel adapter

Y1G = Y-1G yoke and MB-RD2 measuring wheel adapter

UB2 = MB-UB2 mounting assembly (includes MB-RD2 adapter)

UB2A = MB-UB2A mounting assembly (includes MB-RD2 adapter)

   10 = connector with 10' of cable

20 = connector with 20' of cable

3M = connector with 3m of cable

6M = connector with 6m of cable

(any length cable in feet or meters)

 

Modified Versions

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Modification Description  
M139 Single output encoder with Enhanced Anti-Jitter feature Datasheet (45k)
M187 Servo mount configuration with .687" diameter male pilot Datasheet (97k)
M200 Multiple R20 encoders sharing a common shaft (call for information) Datasheet (44k)

 

Custom models available

 

 

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Copyright © 2006 Photocraft Inc
Last modified: October 10, 2007