
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Optical and Mechanical
Encoders
Optical Encoders
CIRCUITRY
SPECIFICATIONS
Ratings
Operating Voltage:5±.25VDC
Supply Current:85mAmaximumat5VDC
Life:1millioncyclesofoperation;1cycleis
rotationthroughallpositionsandafullreturn
Rotational Torque:12±4in-oz(initial)
Output High:3.8VminimumforCMOS&
HCMOS;2.7VminimumforTTL
Output Low:0.8Vmaximum
Shaft Push Out Force:25lbs.
Mounting Torque:10in-lbmaximum
Load Current:5mAmaximumperchannel
Logic Rise and Fall Times:30mSectypical
TRUTH TABLE
+5VOLTS
BIT0
BIT1
BIT2
BIT3
BIT4
GROUND
1
2
3
4
5
6
7
R*
R*
R*
R*
R*
*EXTERNALPULL-UPRESISTORSREQUIREDFOROPERATION(4.7k)
4 BIT, 16 POSITION
Position
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
B1 B2 B3
B4
INDICATESLOGICHIGH
BLANKINDICATESLOGICLOW
3 BIT, 8 POSITION
Position
1
2
3
4
5
6
7
8
B2 B3
B4
INDICATESLOGICHIGH
BLANKINDICATESLOGICLOW
Position
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
B0
B1 B2 B3
B4
5 BIT, 32 AND 24 POSITION
INDICATESLOGICHIGH
BLANKINDICATESLOGICLOW
Series
Style: A=Absolutepositionsensing
Number of positions: 32=32positionswith10°ofthrow
24=24positionswith12°ofthrow
16=16positionswith18°ofthrow
8=8positionswith36°ofthrow
61A32-060
Termination:060=6.0inchescableterminatedwithMolexconnectorP/N14-56-2074.
ORDERING INFORMATION
Available from your local Grayhill Component Distributor.
Forpricesanddiscounts,contactalocalsalesofce,anauthorizedlocaldistributor,orGrayhilldirect.
Environmental
Operating Temp. Range:-40°Cto+85°C
Storage Temp. Range:-55°Cto+100°C
Vibration:MIL-STD202,method204,cond.B
Mechanical Shock:100g’s,6ms,halfSine
12.3ft/sand100g’s,6ms,sawtooth,9.7ft/s
Humidity: 90-95%relativehumidityat
40°Cfor96hrs.
Materials and Finishes
Detent Housing:StainlessSteel
Bushing:Brass,tin/zincplated
Shaft:Stainlesssteel
Detent Balls:Steel,nickel-plated
Code Housings:Nylon6/10
Backplate:Nylon6/10
Aperture:Chemicallyetchedstainlesssteelwith
blackoxidenish
Rotor: Electroformed nickel and chemically
etchedstainlesssteelwithblackoxidenish
Detent Springs:Tinnedmusicwire
PC Boards:NEMAgradeFR-4
Through Bolts: Stainlesssteel,unplated
Through Bolt Nuts:Stainlesssteel
Mounting Hardware: One brass, tin/zinc-
platednutandonestainlesssteel,zinc-plated
lockwasher supplied with each switch. Nut is
0.094inchthickby0.562inchacrossats.