HEDS-9100-OPTION-F00 [AGILENT]

SINGLE, 2 CHANNELS, ROTARY OPTICAL POSITION ENCODER;


型号：	HEDS-9100-OPTION-F00
厂家：	AGILENT TECHNOLOGIES, LTD.
描述：	SINGLE, 2 CHANNELS, ROTARY OPTICAL POSITION ENCODER 编码器
文件：	总8页 (文件大小：292K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Two Channel Optical

Incremental Encoder Modules

Technical Data

HEDS-9000

HEDS-9100

Features

Description

• High Performance

• High Resolution

• Low Cost

• Easy to Mount

• No Signal Adjustment

Required

The HEDS-9000 and the HEDS-

9100 series are high performance,

low cost, optical incremental

encoder modules. When used with

a codewheel, these modules

detect rotary position. The

modules consist of a lensed (LED)

source and a detector IC enclosed

in a small C-shaped plastic

• Small Size

• -40°C to 100°C Operating

Temperature

• Two Channel Quadrature

Output

package. Due to a highly col-

limated light source and unique

photodetector array, these

inch square pins located on 0.1

inch centers.

modules are extremely tolerant to

mounting misalignment.

• TTL Compatible

• Single 5 V Supply

Standard resolutions for the

HEDS-9000 are 500 CPR and

1000 CPR for use with a HEDS-

6100 codewheel or equivalent.

The two channel digital outputs

and the single 5 V supply input

are accessed through five 0.025

Package Dimensions

26.67 (1.05)

15.2

8.6 (0.34)

(0.60)

0.63 (0.025)

2.54 (0.100) TYP.

SQR. TYP.

OPTION CODE

5.1 (0.20)

1.8

(0.07)

1.52 (0.060)

1.0 (0.04)

2.9

DATE CODE

2.21

(0.087)

6.9 (0.27)

(0.11)

11.9

(0.47)

2.54

(0.100)

3.73 ± 0.05

(0.147 ± 0.002)

20.8

(0.82)

H E D S - 9 X 0 0

1.02 ± 0.10

11.7

(0.46)

(0.040 ± 0.004)

8.81

(0.347)

4.75 ± 0.10

(0.187 ± 0.004)

5.8

(0.23)

45°

OPTICAL

CENTER LINE

2.67 (0.105) DIA.

MOUNTING THRU

HOLE 2 PLACES

ALIGNING RECESS

2.44/2.41 DIA.

ALIGNING RECESS

2.44/2.41 X 2.79

(0.215 ± 0.004) (0.096/0.095 X 0.110)

1.85 (0.073)

1.78 ± 0.10

(0.070 ± 0.004)

5.46 ± 0.10

(0.096/0.095)

2.16 (0.085)

DEEP

ALIGNING RECESS

2.44/2.41 DIA.

(0.096/0.095)

8.64 (0.340)

REF.

2.44/2.41 X 2.79

(0.096/0.095 X 0.110)

2.16 (0.085) DEEP

2.92 ± 0.10

(0.115 ± 0.004)

17.27

(0.680)

2.16 (0.085) DEEP

OPTICAL

CENTER

4.11 (0.162)

10.16

(0.400)

20.96

(0.825)

OPTICAL CENTER

6.35 (0.250) REF.

TYPICAL DIMENSIONS IN

MILLIMETERS AND (INCHES)

SIDE A

SIDE B

ESDWARNING:NORMALHANDLINGPRECAUTIONSSHOULDBETAKENTOAVOIDSTATICDISCHARGE.

For the HEDS-9100, standard

resolutions between 96 CPR and

512 CPR are available for use

with a HEDS-5120 codewheel or

equivalent.

Block Diagram

Applications

The HEDS-9000 and 9100

provide sophisticated motion

detection at a low cost, making

them ideal for high volume

applications. Typical applications

include printers, plotters, tape

drives, and factory automation

equipment.

Theory of Operation

The HEDS-9000 and 9100 are C-

shaped emitter/detector modules.

Coupled with a codewheel, they

translate the rotary motion of a

shaft into a two-channel digital

output.

Output Waveforms

As seen in the block diagram,

each module contains a single

Light Emitting Diode (LED) as its

light source. The light is

collimated into a parallel beam by

means of a single polycarbonate

lens located directly over the

LED. Opposite the emitter is the

integrated detector circuit. This

IC consists of multiple sets of

photodetectors and the signal

processing circuitry necessary to

product the digital waveforms.

The codewheel rotates between

the emitter and detector,causing

the light beam to be interrupted

by the pattern of spaces and bars

on the codewheel. The

photodiodes which detect these

interruptions are arranged in a

pattern that corresponds to the

radius and design of the ode-

wheel. These detectors are also

spaced such that a light period on

one pair of detectors corresponds

to a dark period on the adjacent

pair of detectors. The photodiode

outputs are then fed through the

signal processing circuitry

Definitions

Count (N): The number of bar

and window pairs or counts per

revolution (CPR) of the

codewheel.

resulting in A, A, B, and B. Two

comparators receive these signals

and produce the final outputs for

channels A and B. Due to this

integrated phasing technique, the

digital output of channel A is in

quadrature with that of channel B

(90 degrees out of phase).

1 Shaft Rotation = 360

mechanical

degrees,

= N cycles.

1 cycle(C) = 360

electrical

degrees (°e),

= 1 bar and

window pair.

Pulse Width (P): The number of

electrical degrees that an output

is highduring 1 cycle. This value

is nominally 180°e or 1/2 cycle.

Absolute Maximum Ratings

Storage Temperature, T_S^{.....................................................................}-40°C to 100°C

Operating Temperature, T_A^{................................................................}-40°C to 100°C

Supply Voltage, V ^{......................................................................................}-0.5 V to 7 V

Pulse Width Error (∆P): The

deviation, in electrical degrees of

the pulse width from its ideal

value of 180°e.

Output Voltage, V ^{........................................................................................}-0.5 V to V

Output Current per Channel, I_out^{.................................................}-1.0 mA to 5 mA

Phase (φ): The number of elec-

trical degrees between the center

module, channel A will lead

channel B. If the codewheel

State Width (S): The number of

electrical degrees between a

transition in the output of channel

A and the neighboring transition

in the output of channel B. There

are 4 states per cycle, each

nominally 90°e.

of the high state of channel A and

rotates in the opposite direction,

the center of the high state of

channel B will lead channel A.

channel B. This value is nominally

Optical Radius (R_op): The dis-

90°e for quadrature output.

tance from the codewheel’s center

of rotation to the optical center

(O.C.) of the encoder module.

Phase Error (∆φ): The deviation

of the phase from its ideal value

of 90°e.

State Width Error (∆S): The

deviation, in electrical degrees, of

each state width from its ideal

value of 90°e.

Direction of Rotation: When the

codewheel rotates in the direction

of the arrow on top of the

Recommended Operating Conditions

Parameter

Temperature

Symbol

Min.

-40

Typ.

Max.

100

5.5

Units

°C

Notes

V_CC

C_L

Supply Voltage

Load Capacitance

Count Frequency

4.5

Volts

Ripple < 100 mV_p-p

100

3.3 kΩ pull-up resistor

kHz

Velocity (rpm) x N

Note: The module performance is guaranteed to 100 kHz but can operate at higher frequencies.

Encoding Characteristics

Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances.

These Characteristics do not include codewheel/codestrip contribution.

Description

Pulse Width Error

Logic State Width Error

Phase Error

Sym.

∆P

Typ.

Case 1 Max.

Case 2 Max.

Units

°e

Notes

∆S

°e

∆φ

105

°e

Case 1: Module mounted on tolerance circle of ± 0.13 mm (± 0.005 in.).

Case 2: HEDS-9000 mounted on tolerances of ± 0.50 mm (0.020").

HEDS-9100 mounted ontolerances of ± 0.38 mm (0.015").

Electrical Characteristics

Electrical Characteristics over Recommended Operating Range, typical at 25°C.

Parameter

Supply Current

Symbol

Min.

Typical

Max.

Units

Notes

I_CC

High Level Output Voltage

Low Level Output Voltage

Rise Time

V_OH

V_OL

t_r

2.4

Volts

I_OH= -40 µA max.

0.4

I_OL= 3.2 mA

200

C_L= 25 pF

R_L= 11 kΩ pull-up

Fall Time

t_f

Recommended Codewheel Characteristics

Codewheel Options

Optical

Radius

mm (in.)

HEDS

Series

CPR

(N)

Option

5120

11.00 (0.433)

100

192

200

256

360

400

500

512

Figure 1. Codestrip Design

6100

500

1000

23.36 (0.920)

Parameter

Window/Bar Ratio

Window Length

Symbol

φ_w/φ_b

L_W

Minimum

0.7

Maximum

Units

Notes

1.4

1.8 (0.071)

2.3 (0.09)

mm (inch)

Absolute Maximum

Codewheel Radius

R_C

R_OP+ 1.9 (0.0075) mm (inch) Includes eccentricity

errors

Mounting Considerations

Figure 2. Mounting Plane Side A.

Figure 3. Mounting Plane Side B.

Figure 4. Mounting as Referenced to Side A.

Figure 5. Mounting as Referenced to Side B.

Connectors

Mounting

Surface

Manufacturer Part Number

AMP

1203686-4

640442-5

Both

Side B

DuPont

65039-032 with

4825X-000 term.

Both

HEDS-8902

Side B

with 4-wire leads (see Fig. 6)

Molex

2695 series with

2759 series term.

Side B

Figure 6. HEDS-8902 Connector.

Ordering Information

0 0

HEDS-9000 Option

HEDS-6100 Option

Shaft Diameter

Resolution

(Cycles/Rev)

06 - 1/4 in.

10 - 5/8 in.

12 - 6 mm

13 - 8 mm

A - 500 CPR

08 - 3/8 in.

09 - 1/2 in.

B - 1000 CPR

J - 1024 CPR

T - 2000 CPR*

U - 2048 CPR*

HEDS-9000

HEDS-6100

01 02 03 04 05 06 08 09 10 11 12 13 14

0 0

HEDS-910 0 Option

Lead

HEDS-5120 Option

Resolution

(Cycles/Rev)

Shaft Diameter

0 - Straight Leads

1 - Bent Leads

H - 400 CPR

S - 50 CPR

01 - 2 mm

02 - 3 mm

03 - 1/8 in.

04 - 5/32 in.

05 - 3/16 in.

06 - 1/4 in.

11 - 4 mm

14 - 5 mm

12 - 6 mm

13 - 8 mm

A - 500 CPR

I - 512 CPR

B - 1000 CPR*

J - 1024 CPR*

K - 96 CPR

C - 100 CPR

E - 200 CPR

F - 256 CPR

G - 360 CPR

HEDS-9100

HEDS-9101

01 02 03 04 05 06 08 09 10 11 12 13 14

HEDS-5120

www.semiconductor.agilent.com

Data subject to change.

Obsoletes 5965-5887E (11/99)

August 16, 2001

5988-2560EN

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