Mechanical Encoders SERIES 51

Mechanical Encoders
SERIES 51
Binary or Binary
Complement Code
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)
.250 ± .015
(6,35 ± 0,38)
.537 + .020 –.030
(13,64 + 0,51 –0,76)
.125 + .015
–.020
(3,18 + 0,38
–0,51)
.375 ± .015
(9,53 ± 0,38)
Ø .232 (5,89)
COMMON CIRCLE
OF CENTERS
COMMON
POLE 2
COMMON
POLE 3
Ø .125 ± .002
(3,18 ± 0,05)
.203 ± .003
(5,16 ± 0,08)
1/4-28 UNF-2A
THREAD
Ø .562 + .025
–.015
(14,27 + 0,64
– 0,38)
COMMON
POLE 1
PC TERMINAL DETAIL
.125± .015
(3,18 ± 0,38)
Ø .382 (9,70) TERMINAL
CIRCLE OF CENTERS
PC COMMON DETAIL
.020 ± .003
(0,51 ± 0,08)
.125± .015
(3,18 ± 0,38)
Ø .025 ± .002
(0,64 ± 0,05)
See circuit
diagrams for
omitted terminals.
.062 ± .004
(1,57 ± 0,10)
.020 ± .003
(0,51 ± 0,08)
All switches are provided with PC mount terminals.
Grayhill part number and date code marked on label. Customer part number marked on request.
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.
Indicates Terminal is present.
Indicates Terminal is omitted.
Note: Connections must be made on PC board to
BCD
generate code output.
Switch position numbers do not correspond to the
decimal input or binary output. See Truth Tables.
BCD Complement
TIED TOGETHER
ON PC BOARD
TIED TOGETHER
ON PC BOARD
1 OUTPUT
4 OUTPUT
3
4
2 C1
5
1
TIED TOGETHER
ON PC BOARD
6
C2
ROTATING
CONTACTS
8 OUTPUT
11
C3
10
3
TIED TOGETHER
ON PC BOARD
2 C1
1
11
8
TIED TOGETHER
ON PC BOARD
TIED TOGETHER
ON PC BOARD
6
C2
8 OUTPUT
7
2 OUTPUT
8
C3
9
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
5
ROTATING
CONTACTS
10
COMMON
4
12
7
12
1 OUTPUT
4 OUTPUT
2 OUTPUT
9
TIED TOGETHER
ON PC BOARD
COMMON
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
Encoder
7
Optical and Mechanical
Encoders
CL
SHAFT
FLAT
6 5
.250 + .020 – .015
(6,35 + 0,51 –0,38)
GRAYHILL
105¡
.035 (0,89)
REF.
8 7
.093 ± .005
(2,36 ± 0,13)
Mechanical Encoders
TRUTH TABLES
OPTIONS
Binary Code Decimal
Dec.
No.
Switch
Pos'n.*
2nd
Pin**
0
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
12
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-1
1-2
2-3
3-4
Binary Code Decimal Complement
Output Terminal
1
2
4
8
Dec.
No.
Switch
Pos'n.*
2nd
Pin**
0
1
2
3
4
5
6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
12
12-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
Output Terminal
1
2
4
8
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
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.
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.
SPECIFICATIONS
Optical and Mechanical
Encoders
Electrical Rating
Materials and Finishes
Additional Characteristics
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
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.
Contact Type: Wiping contacts
Shaft Flat Orientation: Switch position is
defined as 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.
ORDERING INFORMATION
Type Of
Switch
Maximum No.
Of Positions
BCD Output
Unsealed
Sealed
BCD Complement
Unsealed
Sealed
7
8
9
10
11
12
513360-7
513360-8
513360-9
513360-10
513360-11
513360-12-F
513374-7
513374-8
513374-9
513374-10
513374-11
513374-12-F
513361-7
513361-8
513361-9
513361-10
513361-11
513361-12-F
513375-7
513375-8
513375-9
513375-10
513375-11
513375-12-F
Continuous Rotation
12
513360-12-C
513374-12-C
513361-12-C
513375-12-C
Adjustable Stop
12
513385
———
513384
———
Fixed Stop
The -C suffix indicates continuous rotation. The -F suffix indicates a fixed stop between positions 1 and 12.
Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill.
Encoder
8
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com