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
Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill.
Control knobs available, see page E-39.
SPECIFICATIONS
Electrical Ratings
Operating Voltage: 5 ±.25 Vdc
Supply Current: 30 mA maximum at 5 Vdc
Logic Output Characteristics:
Output Type: Open collector with integrated
Schmitt Trigger and 10 KW 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: 14 nS typical
Mechanical Ratings
Mechanical Life: 300 million revolutions
Time Life: Guaranteed for 10 years of
continuous operation (calculated from
emitter degradation data)
Mounting Torque: 20 in-lbs maximum
Terminal Strength: 5 lbs terminal pull-out
force minimum
Solderability: 95% free of pin holes and voids
Externally Applied Shaft Force:
Axial:15 lbs maximum; Radial:15 lbs
maximum
Operating Torque: 0.5 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
Shock Resistance: Test 1: 100g for 6 mS,
half-sine wave with velocity change of 12.3 ft/s.
Test 2: 100g for 6 mS, sawtooth wave with
velocity change of 9.7 ft/s.
Materials and Finishes
Bushing: 6262-T9 aluminum alloy
Housing: Hiloy 610B
Shaft: Stainless steel insert molded into
nylon rotor support
Code Rotor and Aperture: Chemically
etched stainless steel/electroformed nickel
Printed Circuit Board: NEMA Grade FR-4.
Five microinches minimum gold over 100
microinches minimum nickel over copper
Optical Barrier: Polyphenylene sulfide, 94
V-0
CIRCUITRY AND WAVEFORM: Standard Quadrature 2-Bit Code
Backplate: Polyester
Header: Phosphor bronze, 200 microinches
tin over 50 microinches nickel (pin version
only)
Infrared Emitter: Gallium aluminum
arsenide
Photo IC: Planar silicon
Retaining Ring: Stainless steel
Cable: 26 AWG, stranded/tinned wire, PVC
coated on .100 (2,54) centers (cable version
only)
Connector: Glass-filled PCT, UL94V-0
Bearing Subassembly
Bearing: NSK ABEC 5 (stainless steel)
Preload Collar: 303 stainless steel
Spacer: 303 stainless steel
Bellville Spring: Spring steel (stainless
steel)
1 CYCLE
OUTPUT
A
OUTPUT
B
CHANNEL A LEADS CHANNEL B BY
90˚ ± 45˚ IN ALL ROTATIONS FOR
CLOCKWISE ROTATION OF SHAFT.
1
2
3
5
4
10 K
10 K
PIN #
GROUND
NO CONTACT
OUTPUT A
POWER 5V
OUTPUT B
4.7 K
ORDERING INFORMATION
Series
Style: R = Standard, 5-pin, high resolution
RS = Sealed, 5-pin, high resolution
Cycles: per channel per revolution = 25, 32, 50, 64, 100, 128, 256
63RS256–020
Termination:
Blank (no dash or numbers): pins as described in drawing.
Cable Termination: 020 = 2.0 inches minimum to 250 = 25 inches maximum
Provided in increments of 1/2 inch. (Example 035 = 3.5", 060 = 6".)
Cable is terminated with standard Molex part no. 14-56-3056.
Use any standard .100 center 5-pin header to interface with cable.
E-29
