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
SPECIFICATIONS
Electrical Ratings
Input Voltage: 5 ± 5% Vdc or 5-26 Vdc
Ripple Current: 2% peak-to-peak @ 5 Vdc
Output Circuits: AM26LS31 RS422A line
driver, OL7272 line driver, TTL
Logic Output Characteristics:
Output Type: Quadrature with channel A
leading channel B for CW rotation with index
centered over A
Frequency Response: 200 kHz
Symmetry: 180° ±10% typical
Minimum Edge Separation: 54 electrical
degrees
Commutation Format: Three phase: 4, 6 or
8 poles
Communtation Accuracy: ±1° mechanical
Input Current Requirements: 125 mA
typical, 5 Vdc plus interface loads
Mechanical Ratings
Maximum Shaft Speed: 8,000 RPM
Hollow Shaft Diameter: 0.250", 0.312",
0.375", 6mm, 8mm, 10mm
Radial Shaft Movement: 0.007"
(0,178mm) T.I.R.
Axial Shaft Movement: ±0.030"(7,62mm)
Housing: Carbon fiber composite (case
ground via cable)
Housing Volume Resistivity: 10-2 ohm-cm
Termination:
Standard: 15-conductor stranded cable,
28 AWG, 18" (457mm) in length
Non-commutation and TTL output:
9-conductor stranded cable, 28 AWG,
18" in length
Mounting: 1.812" (46mm) bolt circle
Acceleration: 1x105 radians per second2
Moment of Inertia: 1.5 x 10-4 oz-in-s2
Accuracy: ±.8 arc minutes
Environmental Ratings
Operating Temperature Range: -20°C to
100°C typical; -20°C to 120°C optional
(contact Grayhill for more information)
Storage Temperature Range: -40°C to
125°C
Relative Humidity: 98% non-condensing
Vibration: 20G's @ 50-500 CPS
Mechanical Shock: 50g @ 11mS duration
OPTIONS
Contact Grayhill for custom terminations, reso-
lutions, mounting configurations, and shaft
couplings and configurations.
Series
Resolution: (quadrature cycles per revolution) A = 500, B = 512, C = 1000, D = 1024, E = 256
Voltage: L = 5.0 ± 5% Vdc, H = 5-26 Vdc
Output Option: 1 = AM26LS31 RS422A Line Driver, 2 = OL7272, 5-26 Vdc Line Driver, 3 = TTL,
Output Option: 4 = RS422A, for A, B, Z; Open Collector for U, R, W
Mounting: 1 = Std. 1.812" flex
Mounting: 2 = Size 15 Resolver Mount
63TAL-1-1-4-2-1
Index Gating: 0 = Ungated index; 1 = Gated to A, 180°; 2 = Gated to A and B, 90°
Motor Poles: 4 = 4 pole, 6 = 6 pole, 8 = 8 pole, 0 = no commutation
Hollow Shaft Size: 1 = 0.250", 2 = 0.312", 3 = 0.375", 4 = 6mm, 5 = 8mm, 6 = 10mm
ORDERING INFORMATION
Available from your local Grayhill Component Distributor. For prices and discounts, contact a local Sales Office, an authorized local
Distributor, or Grayhill.
WAVEFORM, CIRCUITRY, AND WIRING DIAGRAM Standard Quadrature 2-Bit Code
Output A
Output B
Output Z
Output A'
Output B'
Output Z'
Clockwise shaft rotation as viewed looking at the encoder face
Output U
Output U'
Output V'
Output V
Output W
Output W'
180 Electrical
10%
90 Electrical Typical
120 Electrical Typical
240 Electrical
Typical
Wiring
Red = +Vdc
Black - Common
Brown - Output A
White - Output A'
Blue - Output B
Green - Output B'
Orange - Output Z
Yellow - Output Z'
Maximum Z Width
Violet - Output U
Gray - Output U'
Brown/White - Output V
Red/White - Output V'
Orange/White - Output W
Yellow/White - Output W'
Black/White - Case Ground
Drain Wire - Cable Shield
Output Circuit
Outputs A, B, Z, U, V & W
Outputs A', B', Z', U', V' & W'
Encoder
7