51 Series Datasheet by Grayhill Inc.

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1 GREYHILU 12 11 1M m I In?" O. ooooooooo
Optical and Mechanical
Encoders
Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com
Mechanical Encoders
SERIES 51
Binary or Binary
Complement Code
CIRCUIT DIAGRAMS
Switch is viewed from the shaft end and shown
in switch position number 1, which is decimal
number zero and BCD number zero.
BCD BCD Complement
10 9
8
7
6
C2
5
4
3
2
1
12
11 C3
C1
4 OUTPUT 1 OUTPUT
2 OUTPUT
8 OUTPUT
TIED TOGETHER
ON PC BOARD
COMMON
ROTATING
CONTACTS
TIED TOGETHER
ON PC BOARD
TIED TOGETHER
ON PC BOARD
10 9
8
7
6
C2
5
4
3
2
1
12
11 C3
C1
4 OUTPUT 1 OUTPUT
2 OUTPUT
8 OUTPUT
TIED TOGETHER
ON PC BOARD
COMMON
ROTATING
CONTACTS
TIED TOGETHER
ON PC BOARD
TIED TOGETHER
ON PC BOARD
TIED TOGETHER
ON PC BOARD
Indicates Terminal is present.
Indicates Terminal is omitted.
Note: Connections must be made on
PC board to generate code output.
Switch position numbers do not correspond to
the decimal input or binary output.
See Truth Tables.
FEATURES
•PCMount,30°AngleofThrow
•2to12Positions
•.562"Diameter,200mA
•ShaftandPanelSeal
•AdjustableStopVersions
DIMENSIONS in Inches (and millimeters)
.093–.005
(2,36–0,13)
105¡
SHAFT
FLAT
C
L
.203–.003
(5,16–0,08)
.562+.025
.015
(14,27+0,64
0,38)
8 7 6 5
GRAYHILL
.125–.002
(3,18–0,05)
.250+.020 .015
(6,35+0,51 0,38)
.375–.015
(9,53–0,38)
.250–.015
(6,35–0,38)
.537+.020 .030
(13,64+0,51 0,76)
1/4-28UNF-2A
THREAD
.125+.015
.020
(3,18+0,38
0,51)
.035(0,89)
REF.
COMMON
POLE1
COMMON
POLE3
.382(9,70)TERMINAL
CIRCLEOFCENTERS
COMMON
POLE2
.232(5,89)
COMMONCIRCLE
OFCENTERS
.020–.003
(0,51–0,08)
.062–.004
(1,57–0,10)
.125–.015
(3,18–0,38)
.025–.002
(0,64–0,05)
.125–.015
(3,18–0,38)
.020–.003
(0,51–0,08)
See circuit
diagrams for
omitted terminals.
AllswitchesareprovidedwithPCmountterminals.
Grayhill part number and date code marked on label. Customer part number marked on request.
PC TERMINAL DETAIL PC COMMON DETAIL
£754”
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
Mechanical Encoders
Forpricesanddiscounts,contactalocalSalesOffice,anauthorizedlocalDistributororGrayhill.
OPTIONS
Adjustable Stops
Set and reset stops to limit rotation. All
dimensions are the same as for fixed stop
switches. Switches are shipped with the stop
blades located to limit rotation to 11 switch
positions.Forcontinuousrotation,removeboth
blades. For limited rotation, remove the 2nd
(clockwise) blade and move it to the hole located
between the positions shown in the Truth Tables.
Removal of a plastic washer provides access to
thebladesandslots.Adjustablestopversions
are available in unsealed styles only.
Shaft and Panel Seal
Switches are available in sealed or unsealed
styles.Forsealedstyle,thepanelissealedby
an o-ring at the base of the bushing. The shaft
issealedbyano-ringinsideofbushing.After
the switch is mounted, seals do not alter the
dimensions of the unsealed style.
Dec. Switch 2nd Output Terminal
No. Pos'n.* Pin** 1 2 4 8
 0 1 4-5
 1 2 5-6
 2 3 6-7
 3 4 7-8
 4 5 8-9
 5 6 9-10
 6 7 10-11
 7 8 11-12
 8 9 12-1
 9 10 1-2
 10 11 2-3
 11 12 3-4
Indicates contact made to common
* The switch position number is the terminal location opposite the shaft flat; it is
not the same as the decimal number.
**Tolimitanadjustablestopswitchtothedecimalnumbershown,insertthe
secondpinintheholelyingbetweenthe2switchpositionsindicated.
TRUTH TABLES
Binary Code Decimal Binary Code Decimal Complement
Electrical Rating
Rated:Tomakeand break 125mA30Vdc
resistiveloadfor25,000cyclesofoperation.
Cycle:(1cycle=360°rotationandreturn)Test
conditions are standard atmospheric pressure,
25°Cand68%relativehumidity.
Contact Resistance: 20 milliohms initially,
300milliohmsmaximumafterlife
Insulation Resistance: 50,000 megohms
initially,10,000megohmsafterlife
Voltage Breakdown:500Vacbetween
mutually insulated parts
SPECIFICATIONS
Type Of Maximum No. BCD Output BCD Complement
Switch Of Positions Unsealed Sealed Unsealed Sealed
7 513360-7 513374-7 513361-7 513375-7
8 513360-8 513374-8 513361-8 513375-8
FixedStop 9 513360-9 513374-9 513361-9 513375-9
10 513360-10 513374-10 513361-10 513375-10
11 513360-11 513374-11 513361-11 513375-11
12 513360-12-F 513374-12-F 513361-12-F 513375-12-F
ContinuousRotation 12 513360-12-C 513374-12-C 513361-12-C 513375-12-C
AdjustableStop 12 513385 ——— 513384 ———
The-Csuffixindicatescontinuousrotation.The-Fsuffixindicatesafixedstopbetweenpositions1and12.
ORDERING INFORMATION
Materials and Finishes
Bases: Thermoset plastic
Detent Rotor: Nylon
Shaft, Stop Blades, Stop Arm, Thrust Washer
And Retaining Ring: Stainless steel
Detent Balls: Steel, nickel-plated
Bushing: Zinc, Tin-zinc-plated
Detent Spring: Stainless steel
Common Terminals and Rings: Brass, gold
plate.00003"minimumoversilverplate.0003"
minimum
Terminals: Brass with silver contact surface,
gold-plated.00003"
Rotor Contact: Berillium copper with silver
contact surface
Shaft And Panel Seal: Silicone rubber
Mounting Hardware:Onemountingnut,.089"
thickby.375"acrossflats,andoneinternaltooth
lockwasher are supplied with the switch.
Additional Characteristics
Contact Type: Wiping contacts
Shaft Flat Orientation: Switch position is
definedasthatpositionthatisoppositetheshaft
flat. The location of the contacts in relation to the
shaft flat is shown on the circuit diagram.
Terminals: Only the active position terminals,
as shown in the circuit diagram are supplied
with the switch. All common terminals are
supplied.
Stop Strength:7.5in-lbsminimum
Rotational Torque:8to16in-oz
Bushing Mounting: Required for these
switches
Maximum Mounting Torque:15in-lbs.
Dec. Switch 2nd Output Terminal
No. Pos'n.* Pin** 1 2 4 8
 0 1 12-1
 1 2 1-2
 2 3 2-3
 3 4 3-4
 4 5 4-5
 5 6 5-6
 6 7 6-7
 7 8 7-8
 8 9 8-9
 9 10 9-10
 10 11 10-11
 11 12 11-12

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