View AEAS-71AC-LAVBB_429786.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Agilent AEAS-71AC-xxxxB Absolute Encoder
Data Sheet
Description The AEAS-71AC-xxxxB absolute encoder is a feedback device that has the capability to generate a unique binary `word' for each encoder shaft position. The AEAS71AC-xxxxB also has the unique feature of being able to provide positional information upon power up without the need for codewheel movement, unlike incremental encoders, which need codewheel movement to provide positional information. Each absolute encoder from the AEAS-71AC-xxxxB consists of a lensed LED (Light Emitting Diode) source, an integrated circuit with detectors and output circuitry, and
Features * Gray or binary code options * High or low power source options * IP 65 rating * 50 mm package diameter * 8 bits and 10 bits resolution * Hollow shaft with 8 mm inside diameter * The package comes with 2 m long cable a special multi-track glass codewheel that rotates between the emitter and detector IC. These 3 main components are contained within a strong metal housing fitted with bearings to produce an IP rated encoder capable of working in very wet and dusty conditions. Models with IP65 ratings have sealed bearings. Applications * Tool changers and axis control for machine tools * Robotics * Telescopes and antennas * Rotary and X - Y positioning tables * Medical scanners
Package Dimensions
14 0.3
35 MODEL NAME PLATE
ZERO ADDRESS POSITION TOLERANCE 5
6 7
1
4
15
60
1
A
30
8H7
1.6
50 0.2
2-R
2-M3
13 (8 EFFECTIVE DEPTH)
12 1 20 0.05 A 20 10
60
A TOLERANCE IS 0.5 mm UNLESS OTHERWISE SPECIFIED. TYPICAL DIMENSIONS IN MILLIMETERS. JIS (JAPANESE INDUSTRIAL STANDARD) 8H7 8g6 NOTE: INFORMATION FROM JIS B0401(1999) DEFINITION (mm) +0.015 -0 +0.005 8 -0.014 8
8g6
2-M3 A NOTE: THRUST VARIABLE OF THE SHAFT: 0.2 mm OR LESS
0.1
ATTACHED DIMENSIONS OF SHAFT AND INTERNAL THREADS CONNECTIONS BLU RED +*~*V BLK 0V.COM VLT BRN 20 GRA ORN 21 WHT YEL 22 SHIELD GRN 23 CONNECTIONS BLU RED +*~*V BLK 0V.COM VLT BRN 20 GRA ORN 21 WHT YEL 22 PNK GRN 23 SKY SHIELD
40 MAX.
24 25 26 27 FG ABSOLUTE ENCODER PART No: AEAS-71AC-XXXBB SERIAL No: XX-XXX MADE IN JAPAN 24 25 26 27 28 29 FG 10 BIT SPEC
5
A
ABSOLUTE ENCODER PART No: AEAS-71AC-XXXAB SERIAL No: XX-XXX MADE IN JAPAN
8 BIT SPEC
2
Theory of Operation The AEAS-71AC-xxxxB is a singleturn, low-cost, and compact absolute encoder which uses optical technology to provide absolute positioning information. The AEAS-71AC-xxxxB consists of a LED, Fixed Slit, Codewheel (Rotating Disc) and Photodiode IC. By using these four main components, the AEAS-71AC-xxxxB is able to produce signals in either binary or gray output form. These signals provide to the designer a unique code for each position that the codewheel is in. As seen in the diagram, the encoder contains a single Light Emitting Diode (LED) as its light source.
The light is collimated into a parallel beam by means of a lens which is built into the LED housing. This parallel beam goes through the Fixed Slit that creates a certain light pattern, due to its pattern of slots, which will fall onto the code-wheel. The movement of the code-wheel between LED and Photo detector, causes the light pattern (from the Fixed Slit) to be further interrupted by the pattern of spaces and bars on the codewheel. This final light pattern from the codewheel is then detected by the Photodiode IC where its signals are fed through signal processing circuitry to produce 8 or 10 parallel signals in binary or gray output form.
LED
FIXED SLIT
PHOTODIODE IC
CODEWHEEL SHAFT
3
Absolute Maximum Ratings Storage Temperature Operating Temperature Supply Voltage -30C to 85C -10C to 60C DC4.5 V to 13.2 V (for output mode = V) DC4.5 V to 13.2 V; DC10.8 V to 26.4 V (for output mode = C) DC10.8 V to 26.4 V (for output mode=P) (notes: VCC ripple at 3% p-p max.) RH85% (IP65): Totally protected against dust and protected against low-pressure jets of water from all directions; limited ingress permitted. 980 m/s2 with 11ms at X, Y, Z directions
Humidity Degree of Protection Shock
Electrical Characteristics (over recommended operating conditions. Typically at 25C) Parameter Current Consumption (without load) High Level Output Voltage Low Level Output Voltage Rise Time Fall Time Response Frequency Angular Accuracy Symbol ICC VOH VOL tr tf f Maximum 100m (max.) VCC - 1 V (for output mode = V) 0.5 or less 2 2 10K (for 8 bit resolution) 20K (for 10 bit resolution) 0.700 (max. for 8 bit resolution) 0.175 (max. for 10 bit resolution) Units A V V s s Hz deg
Mechanical Ratings Parameter Starting Torque Angular Acceleration Shaft Loading Moment of Inertia Speed Net-Weight (without cable) Vibration (in X, Y, Z directions for 2 hrs.) Axial Thrust Radial Maximum 9.8 x 10-3 (max. at 25C) 1 x 105 49 78.4 30 5000 250 10 to 55 Units Nm rad/s2 N N g.cm2 RPM g Hz/1.5 mm (p-p)
4
Electrical Interface
OPEN COLLECTOR OUTPUT
OUTPUT MODE
C VCC
VOLTAGE OUTPUT
OUTPUT MODE
V 2 K SIGNAL SIGNAL VCC
0V
0V
PNP OPEN COLLECTOR OUTPUT
OUTPUT MODE
P VCC
SIGNAL
0V
5
Output Waveforms Definition Signals are extracted by rotating the shaft in clockwise direction as viewed from Arrow angle.
H
The example signals shown are gray code output.
20 L
H 21 L
H 22 L
H 23 L
H 24 L
H 25 L
H 26 L
H 27 L 0 1 2 3 4 5 6 7 8 9 10
6
Electrical Connections Color of Lead Wire Red Black Brown Orange Yellow Green Blue Purple Gray White Pink Sky Blue Shielding Braid Description Power Source 0 V Common Signal 20 Signal 21 Signal 22 Signal 23 Signal 24 Signal 25 Signal 26 Signal 27 Signal 28 Only available for 1024 split type Signal 29 Only available for 1024 split type FG
Ordering Information AEAS-71ACB
Power Source L = 5 to 12 V H = 12 to 24 V
Output Code G = Gray Code Negative Logic A = Binary Code Negative Logic
Output Mode C = Open Collector P = PNP Open Collector, only available for option H of power source (12 to 24 V) V = Voltage Out, only available for option L of power source (5 to 12 V)
Resolution A = 8 bits B = 10 bits
Part Numbers Currently Available: AEAS-71AC-HACAB AEAS-71AC-HACBB AEAS-71AC-HGCAB AEAS-71AC-HGCBB AEAS-71AC-HGPAB AEAS-71AC-HGPBB AEAS-71AC-LACAB AEAS-71AC-LACBB AEAS-71AC-LAVAB AEAS-71AC-LAVBB AEAS-71AC-LGCAB AEAS-71AC-LGCBB AEAS-71AC-LGVAB AEAS-71AC-LGVBB
Note: Please contact your local Agilent sales representative for other options.
7
www.agilent.com/semiconductors
For product information and a complete list of distributors, please go to our web site. For technical assistance call: Americas/Canada: +1 (800) 235-0312 or (408) 654-8675 Europe: +49 (0) 6441 92460 China: 10800 650 0017 Hong Kong: (+65) 6271 2451 India, Australia, New Zealand: (+65) 6271 2394 Japan: (+81 3) 3335-8152(Domestic/International), or 0120-61-1280(Domestic Only) Korea: (+65) 6271 2194 Malaysia, Singapore: (+65) 6271 2054 Taiwan: (+65) 6271 2654 Data subject to change. Copyright (c) 2003 Agilent Technologies, Inc. Obsoletes 5988-8179EN February 10, 2003 5988-8668EN
This datasheet has been download from: www..com Datasheets for electronics components.

▲Up To Search▲

Price & Availability of AEAS-71AC-LAVBB

	To Download AEAS-71AC-LAVBB Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .