Anaheim Differential Encoder With Index Channel User Manual

							FEATURES
DESCRIPTION
• Small Size, Pre-Mounted to Dual Shaft Motor
• 50 to 5,000 Cycles Per Revolution (CPR)
• 200 to 20,000 Pulses Per Revolution (PPR)
• Tracks 0 to 100,000 Cycles Per Second
• 2-Channel Quadrature Differential Squarewave Outputs
• Third Index Channel
• Allows + / - .010” Axial Shaft Play
• Powered From a Single +5VDC Power Supply
• Operating Temperature of -40
o to +100o C
• RoHS Compliant and Reach Certified
DIMENSIONS AND PINOUTS
Our Differential Encoders with Index Channel are transmissive optical encoder modules. These modules 
are designed to detect rotary position with a codewheel when added to the end of an  Anaheim Automation 
dual shaft motor. These differential encoders consist of a lensed LED source and a monolithic detector IC 
enclosed in a small polymer package. These modules use phased array detector technology to provide 
superior performance and greater tolerances over traditional aperture mask type encoders.  They provide 
digital quadrature differential outputs on all resolutions. These encoders are powered from a single +5VDC 
power supply.
L010387
Differential Encoder with Index Channel
To order an differential encoder with index, add a “ - ”, the CPR n\
umber, and a DI on the 
end of any Anaheim Automation dual shaft motor. 
23Y106D-LW8-0400DI
The part number for a 400 CPR encoder mounted on a 23Y106D-LW8 stepper  
motor would be 23Y106D-LW8-0400DI.
Example: 
910 East Orangefair Ln.  Anaheim, CA 92801     Tel. (714) 992-6990
     Fax. (714) 992-0471     www.anaheimautomation.com910 East Orangefair Ln.  Anaheim, CA 92801     Tel. (714) 992-6990      Fax. (714) 992-0471     www.anaheimautomation.com
CPR
504001250
96 5002000
100 5122048
192 5402500
200 7204000
250 9004096
256 1000 5000
360 1024 
						

							910 East Orangefair Ln.  Anaheim, CA 92801     Tel. (714) 992-6990     Fax. (714) 992-0471     www.anaheimautomation.com910 East Orangefair Ln.  Anaheim, CA 92801     Tel. (714) 992-6990      Fax. (714) 992-0471     www.anaheimautomation.com
DIMENSIONS
PIN/TIMING DIAGRAMS
DIFFERENTIAL ENCODER PINOUTTOP OF ENCODER FACING PLUG
Pin #Function Color
1 Ground Drain (Con. One End)
2 Ground Green W/ White Stripe
3 I-Channel White W/ Orange Stripe
4 I+Channel Orange W/ White Stripe
5 A-Channel White W/ Blue Stripe
6 A+Channel Blue W/ White Stripe
7 Power White W/ Green Stripe
8 Power No Connection
9 B-Channel White W/ Brown Stripe
10 B+Channel Brown W/ White Stripe
Differential Encoder Timing Diagram 
						

							910 East Orangefair Ln.  Anaheim, CA 92801     Tel. (714) 992-6990     Fax. (714) 992-0471     www.anaheimautomation.com
ELECTRICAL SPECIFICATIONS
ACCESSORIES
Cable Part Number Length
ENC-CBL-AA4706 1 ft.
ENC-CBL-AA4706-5 5 ft. 
ENC-CBL-AA4706-10 10 ft.
ENC-CBL-AA4706-20 20 ft. 
Cables:
The following cables are compatible with Anaheim 
Automation’s differential series encoder with index. 
Select a cable length from the table below: 
NOTE: For pricing and other information on cables 
and centering tools, please visit Accessories on our 
website.
Model # Description
CPR(N): The Number of Cycles Per Revolution
One Shaft Rotation: 360 mechanical degrees, N cycles
One Electrical Degree (°e): 1/360th of one cycle
One Cycle (C): 360 electrical degrees (°e). Each cycle can 
be decoded into 1 or 4 codes, referred to as 
X1 or X4 resolution multiplication
Symmetry: A measure of the relationship between (X) 
and (Y) in electrical degrees, nominally 180 
°e
Quadrature (Z): The phase lag or lead between channels A 
and B in electrical degrees, nominally 90 °e
Index (CH I): The Index Output goes high once per 
revolution, coincident with the low states of 
channels A and B, nominally 1/4 of one cycle 
(90°e)
Parameter
MaxUnits
Vibration (5 to 2kHz) 20g
Shaft Axial Play +/- 0.01in.
Shaft Eccentricity Plus Radial Play 0.004in.
Acceleration 250,000rad/sec
2
* Unloaded high level output voltage is 4.80V typically, 4.2V minimum.
Timing Characteristics SymbolMinTy p Max Units
Cycle Error C-3.0 5.5 °e
Symmetry X,Y150180 210 °e
Quadrature Z6090120 °e
Index Pulse Width Po6090120 °e
Ch. I Rise After Ch. B or Ch. A Fall t110100 250 ns
Ch. I Fall After Ch. B or Ch. A Rise t270150 300 ns
Recommended Operating 
Conditions Min
Max Units
Temperature (CPR < 2000) -40100 °C
Temperature (CPR ≥ 2000) -25100 °C
Load Capacitance -100 pF
Count Frequency
(CPR ≤ 1250) -
100 kHz
Count Frequency
(CPR 2000-2500) 0
360 kHz
Count Frequency (CPR 
4000+) 0
720 kHz
Parameter MinTy pMax Units
Supply Voltage 4.55.05.5 Volts
Supply Current
CPR < 500, no load
CPR ≥ 500, no load -
-
29
57 36
65 mA
mA
Output Low  (I
OL = 8mA max)
-0.2 0.4 Volts
Output High*
I
OL = -8mA max     
2.4        
3.4        
-  
Volts
Differential Output Rise/ Fall Time --15 nS