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
Optical Encoders
DIMENSIONS
In inches (and millimeters)
SPECIFICATIONS
Electrical Ratings
Operating Voltage:
5.0 ±.25 Vdc
Supply Current: 30 mA maximum at 5 Vdc
Logic Output Characteristics:
Output Type: Open collector with integrated
Schmitt Trigger and 10K ohms pull-up resistor
Maximum Sink Current:
16 mA at .40 volts
Power Consumption: 150 mW maximum
Optical Rise Time: 500 nS typical
Optical Fall Time: 16 nS typical
Mechanical Ratings
Mechanical Life: 10 million revolutions
Time Life:
Guaranteed for 10 years of
continuous operation (calculated from emitter
degradation data)
Mounting Torque: 20 in-lbs maximum
Shaft Push Out Force: 100 lbs
Terminal Strength:
5 lbs terminal pull-out force
minimum
Solderability: 95% free of pin holes and voids
Operating Torque: 1.5 in-oz maximum (no
detents) for unsealed versions
Environmental Ratings
Operating Temperature Range: -40°C to 85°C
Storage Temperature Range: -55°C to 100°C
Relative Humidity:
90-95% at 40°C for 96 hours
Vibration Resistance: Harmonic motion with
amplitude of 15g, within a varied 10 to 2000 Hz
frequency for 12 hours per MIL-STD-202,
Method 204
Cable Version
CIRCUITRY, TRUTH TABLE, AND WAVEFORM: Standard Quadrature 2-Bit Code
1 CYCLE
OUTPUT
A
OUTPUT
B
CHANNEL A LEADS CHANNEL B BY
90? ± 45? IN ALL ROTATIONS FOR
CLOCKWISE ROTATION OF SHAFT.
90? ± 45?
1
2
3
5
4
10 K?
10 K?
PIN #
GROUND
NO CONTACT
OUTPUT A
POWER 5V
OUTPUT B
GRAYHILL XXXX X-X
61RXXX-XXX
XXXX X-X
XX-XXX
UNLESS OTHERWISE SPECIFIED, DIMENSION TOLERANCES ARE AS FOLLOWS:
LINEAR
±.010 (.25), DIAMETERS ±.010 (.25), ANGULAR ±5?
1.250 DIA
(31.75)
.219
(5.57)
.033
(.84)
.066
(1.68)
.250
(6.35)
.501
(12.73)
.725±.025
(18.42±.64)
.350
(8.89)
.249/.250 DIA
(6.32/6.34)
.025 X 45?
(.64)
CHAMFER
3/8 - 32
UNEF-2A
THREADS
CABLE LENGTH
XXX±.25
(XXX±.7)
CONNECTOR IS
MOLEX P/N
14-56-3056
OR EQUIVALENT
PIN #1
.550 DIA
(13.97)
MOUNTING
SURFACE
.152
(3.86)
KEYWAY DEPTH
Encoder
45
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