R30 and SR30 Absolute Encoders
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R30 or SR30 absolute encoder
Shown in long housing with DB25 connector
Description (59k)

Specifications (72k)

Dimensions

10 and 11-bit Industrial Absolute Encoders

The R30 is a 10-bit, single-turn, digital, rotary absolute position encoder intended for industrial applications requiring up to 1024 uniquely identifiable positions per revolution. The SR30 provides up to 11-bits and uses a patented, cost saving technology that relaxes the precise alignment tolerances of conventional absolute encoders by an order of magnitude without sacrificing accuracy. The result is a fully functional, yet lower cost alternative. The SR30 updates the outputs at 1KHz and the SR31 updates at 3KHz.

Model Number

model shaft
diameter
- resolution output codes rotation / supply voltage logic Data
Ready signal
output circuit option modification
R30 3/8" is standard

.5= 1/2" 

  256
360
512
1000
1024
inquire for others
G= gray code
N natural binay
C3= Excess 76 Gray Code
 

Inquire for others

counts increase
for clockwise rotation

D= counts decrease

  5

8 - 28

positive logic is standard

N= negative logic

"High"
data
ready is standard

L= "Low" data
ready

(not
available
on R30
with gray code)

C

P

R

Standard is
DB25P
connector
and not
sealed

MS= MS3102E
-20-29P connector
WP= Environ-
mentally
sealed
(includes
MS3102E
-20-29P connector)
Optional modification number
SR30

SR31 

  256
512
1024
2048

 

Example: R30 - 360GD / 8-28C  M108 Example: SR30 - 1024N / 5NL  MS  
bulletR30 absolute encoder
bullet360 positions per revolution
bulletgray code output code
bulletcounts decrease for clockwise rotation
bulletoperates on 8-28 vdc
bulletpositive logic
bullet"high" data ready
bullet50ma open collector output circuit
bulletstandard DB25P connector
bulletM108 modification (see table below)
bulletSR30 absolute encoder
bullet1024 positions per revolution
bulletnatural binary output code
bulletcounts increase for clockwise rotation
bulletoperates on 5 vdc
bulletnegative logic
bullet"low" data ready
bullet5ma push/pull output
bulletMS3102E-20-29P connector
bulletNo modifications

 

Standard Features and Options

bullet

Output Formats: parallel

bullet

Interrogation Rate:
bullet

R30 with gray code: continuous

bullet

R30 with natural binary: 40K Hz

bullet

SR30: 1K Hz

bullet

SR31: 3K Hz

bullet

Shaft: 3/8" diameter x 1" length

 

Output Circuits

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Condition Output Circuit
If not specified and R30, 5vdc, gray code 5ma current sinking
If not specified and R30, 5vdc, natural binary 5ma push/pull
If not specified and SR30, 5vdc, any output code 5ma push/pull
If not specified and R30 or SR30, 8-28vdc, any output code 50ma current sinking
C is specified in model number 50ma open collector
P is specified in model number 50ma current sourcing
R is specified in model number 50ma current sinking

Standard Accessories

bulletFlexible coupling

 

Modified Versions

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Model or Modification Description  
R30-8A068 R30 with 360 gray code, forward/reverse select Datasheet (32k)
R30-8A084 R30 with 360 gray code, forward/reverse select, 1.562" shaft length, environmentally sealed Datasheet (29k)
R30-8A085 R30 with 360 gray code, forward/reverse select, environmentally sealed Datasheet (28k)
M108 R30 with forward/reverse direction select Datasheet (23k)
R30-8A123
R30-8A123-S
R30 with 360 gray code, forward/reverse direction select, 1/2" shaft diameter Datasheet (35k)

Custom Models available

 

 

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