HEDS-9000T HP [Agilent(Hewlett-Packard)], HEDS-9000T Datasheet

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HEDS-9000T

Manufacturer Part Number
HEDS-9000T
Description
Two Channel High Resolution Optical Incremental Encoder Modules
Manufacturer
HP [Agilent(Hewlett-Packard)]
Datasheet
Two Channel High Resolution
Optical Incremental Encoder
Modules
Technical Data
Features
• High Resolution: Up to 2048
• Up to 8192 Counts per
• Two Channel Quadrature
• Low Cost
• Easy to Mount
• No Signal Adjustment
• Small Size
• -40 C to 100 C Operating
• TTL Compatible
• Single 5 V Supply
Description
The HEDS-9000 Options T and U
and the HEDS-9100 Options B
and J are high resolution two
channel rotary incremental
encoder modules. These options
are an extension of our popular
HEDS-9000 and HEDS-9100
series. When used with a code-
wheel, these modules detect
relative rotary position. The
HEDS-9200 Option 300 and 360
are high resolution linear encoder
modules. When used with a
ESD WARNING: NORMAL HANDLING PRECAUTIONS SHOULD BE TAKEN TO AVOID STATIC
DISCHARGE.
Cycles per Revolution
Revolution with 4X Decoding
Output
Required
Temperature
codestrip, these modules detect
relative linear position.
These modules consist of a lensed
Light Emitting Diode (LED)
source and detector IC enclosed
in a small C shaped plastic
package. Due to a highly
collimated light source and
unique photodetector array, these
modules provide a highly reliable
quadrature output.
The HEDS-9000 and HEDS-9100
are designed for use with
codewheels which have an optical
radius of 23.36 mm and 11 mm
respectively. The HEDS-9200 is
designed for use with a linear
codestrip.
These components produce a two
channel quadrature output which
can be accessed through five
0.025 inch square pins located on
0.1 inch centers.
The resolution of the HEDS-9000
Options T and U are 2000 and
2048 counts per revolution
respectively. The HEDS-9100
Options B and J are 1000 and
1024 counts per revolution
HEDS-9000/9100/9200
Extended Resolution
Series
respectively. The HEDS-9200
Option 300 and 360 linear
encoder modules have resolutions
of 300 and 360 lines per inch.
Consult local Agilent sales
representatives for other
resolutions.
Note: Agilent Technologies
encoders are not recommended
for use in safety critical
applications. Eg. ABS braking
systems, power steering, life
support systems and critical care
medical equipment. Please
contact sales representative if
more clarification is needed.

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HEDS-9000T Summary of contents

Page 1

... Small Size • - 100 C Operating Temperature • TTL Compatible • Single 5 V Supply Description The HEDS-9000 Options T and U and the HEDS-9100 Options B and J are high resolution two channel rotary incremental encoder modules. These options are an extension of our popular HEDS-9000 and HEDS-9100 series ...

Page 2

Block Diagram Theory of Operation The diagram shown on the fol- lowing page is a block diagram of the encoder module. As seen in this block diagram, the module contains a single LED as its light source. The light is ...

Page 3

... Package Dimensions 26.67 (1.05) 15.2 (0.60) 0.63 (0.025) SQR. TYP. OPTION CODE 5.1 (0.20) HEDS-9X00 1.02 ± 0.10 (0.040 ± 0.004) ALIGNING RECESS 2.44/2.41 DIA 1.85 (0.073) (0.096/0.095) 2.16 (0.085) 8.64 (0.340) DEEP REF. 17.27 (0.680) 20.96 (0.825) SIDE A Absolute Maximum Ratings Storage Temperature ..................................................................... Operating Temperature ................................................................ Supply Voltage ...................................................................................... Output Voltage ........................................................................................ ...

Page 4

Electrical Characteristics Electrical Characteristics over Recommended Operating Range, typical Parameter Supply Current High Level Output Voltage Low Level Output Voltage Rise Time Fall Time Encoding Characteristics Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances. These ...

Page 5

... Derating Curves over Extended Operating Frequencies (HEDS-9000/9100/9200 Extended Series) Below are the derating curves for state, duty, phase and V 240 kHz (recommended maximum frequency is 100 kHz). The curves were derived using standard TTL load. –40 C operation is not feasible above 160 kHz because V state high) beyond that frequency ...

Page 6

Gap Setting for Rotary and Linear Modules Gap is the distance between the image side of the codewheel and the detector surface of the mod- ule. This gap dimension must always be met and codewheel warp and shaft end play ...

Page 7

Mounting Considerations for Linear Modules Mounting Plane Side A 7 Mounting Plane Side B ...

Page 8

Recommended Codewheel Characteristics Parameter Symbol Window/Bar Ratio / w b Window Length L w Absolute Maximum R c Codewheel Radius Recommended Codestrip Characteristics and Alignment Codestrip design must take into consideration mounting as referenced to either side A or side ...

Page 9

... Connectors Manufacturer AMP DuPont Agilent Molex Figure 7. HEDS-8902 Connector. Part Number 103686-4 640442-5 65039-032 with 4825X-000 term. HEDS-8902 with 4-wire leads 2695 series with 2759 series term. 9 Mounting Surface Both Side B Both Side B (see Fig. 7) Side B ...

Page 10

... Two Channel Encoder Modules with an 11.00 mm Optical Radius HEDS-9100 Option Two Channel Linear Encoder Module HEDS-9200 Option Note: For lower resolutions, please refer to HEDS-9000/9100 and HEDS-9200 data sheets for detailed information. *Codewheel Information For information on matching codewheels and accessories for use with Agilent rotary encoder ...

Page 11

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 ...

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