Optical Encoders
CIRCUITRY, TRUTH TABLE, AND WAVEFORM Standard Quadrature 2-Bit Code
PIN #
POWER +ꢀV
6
R*
Clockwise Rotation
HIGH
Position
Output A
Output B
ꢀ
4
3
2
OUTPUT A
OUTPUT B
OUTPUT
A
1
2
3
4
R*
LOW
HIGH
LOW
•
•
OUTPUT
B
•
•
N±O±
PUSH-
BUTTON
SWITCH
Indicates logic high; blank indicates
•
1
2
3
4
ꢀ
6
logic low±
POSITION NUMBER
Code repeats every 4 positions±
1
GROUND
Code Rotor:Delrin 1..
AVERAGE ROTATIONAL TORQUE SPECIFICATIONS
SPECIFICATIONS
Printed Circuit Boards: NEMA grade FR-4,
double clad with copper, plated with gold over
nickel
Infrared Emiting Diode Chips: Gallium
aluminum arsenide
Silicon Phototransistor Chips: Gold and
Aluminum Alloys
Resistor: Metal oxide on ceramic substrate
Solder Pins: Brass, plated with tin
Pushbutton Dome: Stainless steel
Backplate: Stainless steel
Cable: Copper stranded with topcoat in PVC
insulation (Cable version only)
Connector (.050 Center): PA4±6 with tin over
nickel plated phosphor bronze
Connector (.100 Center): Nylon UL94V-2, tin
plated copper alloy
Label: TT4.6 Thermal transfer cast film
Solder: Sn/Ag/Cu, Lead-Free, No Clean
Lubricating Grease: NYE nyogel 774L
Hex Nut: Nickel, plated with brass
Lockwasher: Stainless steel
Header: Hi-Temp glass filled thermoplastic
UL94V-., phoshor bronze (pinned versions
only)
LOW
MEDIUM
HIGH
Environmental Specifications
OperatingTemperture Range: -4.°C to 8ꢀ°C
Storage Temperature Range: -ꢀꢀ°C to 1..°C
Humidity: 96 Hours at 9.–9ꢀ% humidity at
4.°C
± .±ꢀ. IN-OZ
± 1±4. IN-OZ
± 1±6. IN-OZ
8 POSITION
12 POSITION
16 POSITION
2. POSITION
24 POSITION
32 POSITION
1±1.
1±..
1±4.
1±3ꢀ
1±2ꢀ
.±9ꢀ
1±8ꢀ
1±7.
2±3ꢀ
2±.ꢀ
1±9ꢀ
1±4.
2±7ꢀ
2±9ꢀ
3±4.
2±8.
2±9ꢀ
2±1ꢀ
Mechanical Vibration: Harmonic motion with
amplitude of 1ꢀG's, within a varied frequency
of 1. to 2... Hz
MechanicalShock:Test 1: 1..G for 6mS,half
sine wave with a velocity change of 12±3 ft/s;
Test 2: 1..G for 6 mS, sawtooth wave with a
velocity change of 9±7 ft/s
Torque shall be within ꢀ.% of initial value
throughout life
Mounting Torque: 1ꢀ in-lbs maximum
Shaft Push-Out Force: 4ꢀ lbs minimum
Shaft Pull-Out Force: 4ꢀ lbs minimum
Terminal Strength: 1ꢀ lbs minimum terminal
pull-out force for cable or header termination
Solderability: 9ꢀ% free of pin holes and voids
Rotary Electrical and Mechanical
Specifications
Pushbutton Electrical and
Mechanical Specifications
Rating:1. mA at ꢀ Vdc
Operating Voltage: ꢀ±.. ± .±2ꢀ Vdc
Supply Current: 3.mA maximum at ꢀVdc
Output: Open collector phototransistor,
external pull up resistors are required
Output Code: 2-Bit quadrature, channel A
leads channel B by 9.° electrically during
clockwise rotation of the shaft
Contact Resistance: <1.Ω
Life: 3 million actuations minimum
Contact Bounce: <4 ms Make, <1. ms Break
Actuation Force: 9-9ꢀ.± 2ꢀ. grams, ꢀ-
ꢀ1.± 11. grams, 4-4..± 1.. grams, 3-3..± 9.
grams, 2-2..± 7ꢀ grams
Logic Output Characteristics:
Logic High shall be no less than 3±. Vdc
Logic Low shall be no greater than 1±. Vdc
Minimum Sink Current: 2±. mA
Power Consumption: 1ꢀ. mW maximum
Mechanical Life:
Shaft Travel: ±.2.± ±.1. inch
Strain Relief: Glass filled thermoplastic (±1..
center cable versions only)
Materials and Finishes
Bushing: Zamak 2
Shaft: Aluminum or Zamak 2
Retaining Ring: Stainless steel
Pushbutton Actuator: Zytel 7.G33L
Detent Spring: Music wire
Detent Ball: Stainless steel
Code Housing: Polyamide polymer, nylon 6/
1. alloy UL94HB
Non-Detent
Low & Medium
High
3 Million Cycles
1 Million Cycles
1/2 Million Cycles
OPTIONS
Contact Grayhill for custom terminations, shaft
and bushing configurations, rotational torque
pushbutton force, and code output± Control
knobs are also available±
1 cycle is a rotation through all positions and
a full return
ORDERING INFORMATION
Termination
Angle of Throw
C = ±.ꢀ. Center Ribbon Cable with Connector
S = ±.ꢀ. Center Ribbon Cable with ±1.. Stripped End
P = ±.ꢀ. Center Pins with ±18ꢀ Length
CH = ±1.. Center Ribbon Cable with Connector
SH = ±1.. Center Ribbon Cable with ±1.. Stripped End
PH = ±1.. Center Pins with ±23. Length
4ꢀ=4ꢀ° for Code Change and 8 Detent Positions
3.=3.° for Code Change and 12 Detent Positions
22=22±ꢀ° for Code Change and 16 Detent Positions
18=18° for Code Change and 2. Detent Positions
1ꢀ=1ꢀ° for Code Change and 24 Detent Positions
11=11±2ꢀ° for Code Change and 32 Detent Positions
62SXX-XX-.4.X
Cable Length
Cable Termination: .4.=4±.in or .4.in± Cable is
terminated with Amp Connector P/N 64.442-6
See Amp Mateability Guide for mating connector details±
Rotational Torque Option
N = Non-detent
L = Low Torque (available with ., 4, ꢀ, 9 pushbutton only)
M = Medium Torque (available with ., ꢀ, 9 pushbutton only)
H = High Torque (available with ., 9 pushbutton only)
Pushbutton Option
. = NO PUSHBUTTON
9 = 9ꢀ. Grams
ꢀ = ꢀ1. Grams
4 = 4.. Grams
3 = 3.. Grams
2 = 2.. Grams
Encoder
4
Grayhill, Inc.
• 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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