HEDM-6540#T09 [ETC]
Large Diameter (56mm). Housed Two and Three Channel Optical Encoders ; 大直径（ 56毫米） 。住二和三通道光学编码器\n
| 型号： | HEDM-6540#T09 |
| 厂家： | 
ETC |
| 描述： | Large Diameter (56mm). Housed Two and Three Channel Optical Encoders
|
| 文件： | 总15页 (文件大小：309K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Large Diameter (56 mm),
Housed Two and Three
Channel Optical Encoders
Technical Data
HEDL-65xx
HEDM-65xx
HEDS-65xx Series
Features:
outputs. This index is an active
high pulse that occurs once every
full rotation of the codewheel.
Resolutions up to 1024 Counts Per
Revolution are available in the two
and three channel versions.
• Two Channel Quadrature
Output with Optional
Index Pulse
• TTL Compatible Single Ended
Outputs on HEDS Series
• 100°C Operating Temperature
The line driver option offers
enhanced performance when the
encoder is used in noisy environ-
ments, or when it is required to
drive long distances.
• Industry Standard 26C31
CMOS Line Driver IC on
HEDL Series
• Easy Assembly, No Signal
Adjustment Necessary
• Resolutions up to 2048 Counts
Per Revolution
• Maximum Shaft Diameter
of 5/8 Inches
The line driver option utilizes an
industry standard line driver IC
(26C31) which provides comple-
mentary outputs for each encoder
Applications
The HEDS-65xx / HEDL-65xx
provide motion detection to a
very high resolution and accept a
variety of shaft sizes up to a
maximum of 5/8 inches.
channel. Thus the outputs of the
–
• Single +5 V Supply
line driver encoder are A and A, B
–
–
and B, and I and I for three
channel versions. Suggested line
receivers are 26C32 and 26C33.
Description
The HEDS-65xx/HEDL-65xx
are high performance two and three
channel optical incremental
encoders. These encoders empha-
size high reliability, high resolution,
and easy assembly. Each encoder
contains a lensed LED source
(emitter), an integrated circuit with
detectors and output circuitry, and a
codewheel which rotates between
the emitter and detector integrated
circuit. The outputs of the HEDS-
6500 are two single ended square
waves in quadrature. The HEDL-
65xx outputs are differential.
The quadrature signals are ac-
cessed through a cable and 10-pin
female connector. Please refer to
the ordering information at the end
of this data sheet for a selection
matrix.
The HEDS-6540 / HEDL-6540 also
have a third channel index output in
addition to the two quadrature
2
Typical applications include print-
ers, plotters, tape drives, position-
ing tables, and automatic handlers.
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.
Assembled Unit
609.6
(24.0 ± 0.5)
18.14
(0.714)
Base Plate
3.3
(0.128)
25.91
(1.020)
55.88
(2.200)
ON 46.0 B.C.
(
1.811 B.C.)
24.38
(0.960)
2.44
(0.096)
2.44
(0.096)
0.254
(0.010)
SLOTTED
17.27
(0.680)
DIMENSIONS IN MILLIMETERS AND (INCHES).
Top Cover (Housing)
55.9
(2.20)
13.2
(0.52)
65.9
(2.59)
HEDS-65XX #xxx
YYMM
COUNTRY OF ORIGIN
5.2
(0.21)
24.9
(0.98)
30.2
(1.19)
DIMENSIONS IN MILLIMETERS AND (INCHES).
3
Pinout A
1) CHANNEL A
2) V
CC
PHOTO DIODES
COMPARATORS
LENS
3) GND
4) NC
5) NC
LED
6) GROUND
7) V
CC
8) CHANNEL B
9) V
INDEX-PROCESSING
CIRCUITRY
CC
10) CHANNEL I
SIGNAL PROCESSING
CIRCUITRY
EMITTER
SECTION
CODE
WHEEL
DETECTOR SECTION
PCB/CABLE/CONNECTOR
Pinout B
1) NC
2) V
CC
PHOTO DIODES
COMPARATORS
LENS
3) GND
4) NC
5) A
LED
LINE
DRIVER
6) A
7) B
8) B
INDEX-PROCESSING
CIRCUITRY
9) INDEX
10) INDEX
SIGNAL PROCESSING
CIRCUITRY
EMITTER
SECTION
CODE
WHEEL
DETECTOR SECTION
PCB/CABLE/CONNECTOR
There are two different connector pin-out configurations used with the HEDS-65xx / HEDL-65xx series of
encoders. The table below relates the part to its connector pin-out.
Connector Pin-out
Pinout A
Pinout B
HEDS-65xx CONNECTOR
PIN OUT
HEDL-65xx CONNECTOR
PIN OUT
1 Channel A
2 VCC
1 NC
2 VCC
3 GND
4 NC
3 GND
4 NC
5 NC
5 A
6 GND
6 A
7 VCC
7 B
8 Channel B
9 VCC
10 Channel I
8 B
9 I (INDEX)
10 I (INDEX)
4
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).
Pulse Width (P): The number of
electrical degrees that an output
is high during one cycle. This
value is nominally 180 e or 1/2
cycle.
Theory of Operation
The HEDS-65xx / HEDL-65xx
translate the rotary motion of a
shaft into either a two or three
channel digital output.
Pulse Width Error (∆P): The
deviation, in electrical degrees,
of the pulse width from its ideal
value of 180 e.
The HEDS-65xx uses one of
the standard HEDS-9000 or
HEDS-9040 modules for
encoding purposes. The
HEDL-654x uses the standard
HEDL-9040 for encoding
purposes.
In the HEDS-6540 / HEDL-6540
the output of the comparator for
the index pulse is combined with
that of the outputs of channel A
and channel B to produce the final
index pulse. The index pulse is
generated once every rotation of
the codewheel and is a one state
width (nominally 90 electrical
degrees), true high index pulse.
It is coincident with the low states
on channels A and B.
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
As seen in the block diagram,
these modules contain a single
Light Emitting Diode (LED) as
their light source (emitter). The
light is collimated into a single
parallel beam by means of a
plastic lens located directly over
the LED. Opposite the emitter is
the integrated detector circuit
(detector). This circuit consists
of multiple sets of photodetectors
and the signal processing circuitry
necessary to produce the digital
waveforms.
channel B. There are 4 states
per cycle, each nominally 90 e.
State Width Error (∆S): the
deviation, in electrical degrees,
of each state width from its ideal
value of 90 e.
Definitions
Count (N): The number of bar
and window pairs or counts per
revolution (CPR) of the codewheel.
Phase (Φ): the number of electrical
degrees between the center of
high state on channel A and
the center of the high state on
channel B. This value is nominally
90 e for quadrature output.
One Cycle (C): 360 electrical
degrees (e), 1 bar and window
pair.
The codewheel rotates between
the emitter and detector, causing
the light beam to be interrupted
by a 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 codewheel. 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 into the signal
Phase Error (∆Φ): The deviation
of the phase from its ideal value
of 90 e.
One Shaft Rotation: 360
mechanical degrees, N cycles.
Position Error (∆Θ): The normal-
ized angular difference between
the actual shaft position and the
position indicated by the encoder
cycle count.
Direction of Rotation: When the
codewheel rotates in a counter-
clockwise direction (when viewed
from the encoder end of the motor)
channel A will lead channel B.
If the codewheel rotates in the
clockwise direction channel B
will lead channel A.
Cycle Error (∆C): An indication
of cycle uniformity. The difference
between an observed shaft angle
which gives rise to one electrical
cycle, and the nominal angular
increment of 1/N of a revolution.
Index Pulse Width (P0): The
number of electrical degrees that
an index output is high during
one full shaft rotation. This value
is nominally 90 e or 1/4 cycle.
processing circuitry resulting
–
–
–
in A, A, B, and B (I and I also in
the three channel encoders).
5
Output Waveforms
C
P
2.4 V
0.4 V
CH A
OUTPUT
PHASE
S2
S1
S3
S4
2.4 V
0.4 V
CH B
OUTPUT
I1
I2
2.4 V
0.4 V
CH I
OUTPUT
P0
ROTATION
Waveforms for Encoders without Line Drivers.
A
A
B
B
I
I
Waveforms for Encoders with Line Drivers.
(Meets all requirements of EIA-422.)
6
Absolute Maximum Ratings
Parameter
HEDS-6500 HEDS-6540 HEDL-6540 HEDL-6545
-40 to +100 -40 to +100 -40 to +100 -40 to +100
-40 to +100 -40 to +100 -40 to +100 -40 to +100
Storage Temperature
Operating Temperature
Supply Voltage
Celsius
Celsius
Volts
-.5 to +7
-.6 to V
-.5 to +7
-.6 to V
-.5 to +7
-.6 to V
-.5 to +7
-.6 to V
cc
Output Voltage
Volts
cc
cc
cc
Output Current Per Channel
Velocity
-1 to 5
-1 to 5
mA
30,000
30,000
30,000
30,000
RPM
Vibration
20
5
20
5
20
5
20
5
Gs
Shaft Axial Play
Inch/1000
Inch/1000
Radial Play & Eccentricity
2
2
2
2
Recommended Operating Conditions
Parameter
HEDS-6500 HEDS-6540 HEDL-6540 HEDL-6545
Temperature
-40 to +100 -40 to +100 -40 to +100 -40 to +100
Celsius
Volts
pF
Supply Voltage
Load Capacitance
Count Frequency
4.5 to 5.5
100
4.5 to 5.5
100
4.5 to 5.5
100
4.5 to 5.5
100
100
100
100
100
kHz
Shaft Eccentricity
Plus Radial Play
± .05
(± .002)
± .05
(± .002)
± .05
(± .002)
± .05
(± .002)
mm
(Inch/1000)
Note: The HEDS-65XX performance is guaranteed to 100 kHz but can operate at higher frequencies. For frequencies above 100 kHz
it is recommended that the load capacitance not exceed 25 pF and pull up resistors of 3.3 kΩ between the output channels and V
are included.
cc
7
Encoding Characteristics
Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances
unless otherwise specified. Values are for the worst error in the full rotation.
Part Number
Description
Symbol
Min.
Typ.*
Max.
Units
HEDS-6500*** Pulse Width Error
Logic State Width Error
Phase Error
∆P
∆S
∆Φ
∆Θ
∆C
5
5
2
7
5
35
35
15
20
5.5
e
e
e
Position Error
Cycle Error
min. of arc
e
HEDS-6540** Pulse Width Error
Logic State Width Error
Phase Error
∆P
∆S
∆Φ
∆Θ
∆C
∆P0
5
5
2
7
5
35
35
15
20
5.5
125
e
e
e
Position Error
Cycle Error
Index Pulse Width
min. of arc
e
e
55
90
CH I fall after CH B or CH A fall
-25°C to +100°C
-40°C to +100°C
t1
t1
10
-300
100
100
250
250
ns
ns
CH I rise after CH B or CH A rise
-25°C to +100°C
t2
t2
70
70
150
150
300
1000
ns
ns
-40°C to +100°C
HEDL-654x
Pulse Width Error
Logic State Width Error
Phase Error
Position Error
Cycle Error
∆P
∆S
∆Φ
∆Θ
∆C
∆P0
5
5
2
7
5
35
35
15
20
5.5
e
e
e
min. of arc
e
e
Index Pulse Width
90
*Typical values specified at V = 5.0 V and 25°C.
cc
**HEDS-6540 – Active high Index part. Pull-up of 2.7 kΩ used on all outputs of modules that do not have a line driver.
***HEDS-6500 – 3.3 kΩ pull-up resistors used on all encoder module outputs.
8
Electrical Characteristics
Electrical Characteristics over Recommended Operating Range, typical at 25°C.
Part Number Symbol* Min.
Typ.
Max.
Units
Notes
HEDS-6500
HEDS-6540
I
17
40
mA
V
V
ns
ns
cc
VOH
VOL
t
2.4
IOH = -40 µA max
IOL = 3.2 mA
0.4
200
50
C = 25 pF, R = 11 kΩ pull-up.
r
f
L
L
t
I
30
2.4
57
85
mA
V
V
cc
VOH
VOL
IOH = -200 µA max
IOL = 3.86 mA
0.4
t
t
180
40
ns
ns
C = 25 pF, R = 3.3 kΩ pull-up.
L
L
r
f
*Explanation for symbols.
I
cc
– Supply current, VOH – High Level Output Voltage, VOL – Low Level Output Voltage, t – Rise Time, t – Fall Time.
r f
Electrical Interfaces
To insure reliable encoding performance, the HEDS-6540 three channel encoder requires 2.7 kΩ pull-up
resistors to the supply voltage on each of the three output lines Ch. A, Ch. B, and Ch. I located as close as
possible to the encoder (less than 4 feet).
Mechanical Characteristics
Parameter
Symbol
Dimensions
7.7 (110 x 10-6)
15.9 (0.625)
46.0 (1.811)
2.5 x 0.45 x 5
Tolerances [1]
Units
gcm2 (oz-in-s2)
mm (inches)
mm (inches)
mm
Moment Of Inertia
Required Shaft Length [2]
Bolt Circle [3]
J
± 0.6 (.024)
± 0.13 (.005)
Mounting Screw Size [4]
Pan Head Style
#2-56 x 3/16
3.04 (120)
1.0 (0.88)
Inches
Encoder Base Plate Thickness
Mounting Screw Torque
Hub Set Screw
mm (inches)
Kg (in-lbs)
UNC #2-56
Hex head set screw
Notes:
1. These are tolerances required of the user.
2. Through hole in the encoder housing are also available, for longer shafts.
3. The HEDL-65X0 must be aligned using the aligning pins as specified in the section on “MOUNTING CONSIDERATIONS.”
4. The recommended mounting screw torque for 2 screws is 1.0 Kg (0.88 in-lbs).
9
Mounting Considerations
The HEDS-654x/HEDL-654x must be aligned with respect to the optical center (codewheel shaft) as
indicated in the following figure.
2 SCREW MOUNTING
M2.5 (2-56 UNC-2B)
2 PLCS – EQUALLY
SPACED ON
46.00 (1.811) DIA.
BOLT CIRCLE
2.62
(0.103)
24.38
(0.960)
0.25 (0.010) A
—A—
MOTOR SHAFT CENTER
ALIGNMENT BOSS
26.010/25.984
(
1.024/1.023)
5.7 (0.225) TALL MAX.
0.15 (0.006) A
17.27
(0.680)
ALIGNING PINS
2.39/2.34 DIA. – 0.76 HIGH
(0.094/0.092–0.030)
0.25 (0.010) x
15.88
(0.625)
45° CHAMFER
2 PLACES
0.15 (0.006) A
TYPICAL DIMENSIONS IN MILLIMETERS AND (INCHES).
If neither locating pins nor locating boss are available, then a centering tool supplied by Agilent can be used
(HEDS-6510).
The following figure shows how the main encoder components are organized.
Encoder Mounting and Assembly
EXPLODED VIEW
10
1
ALIGNMENT
TOOL
ASSEMBLE COMPONENTS AND MOUNTING
SCREWS AND TOOLS AS APPROPRIATE.
2
LOAD ENCODER BASEPLATE ONTO
RECEIVING SURFACE (MOTOR END
PLATE) WITH MOUNTING SCREW HOLES
ALIGNED WITH MATING HOLES. LOAD
MOUNTING SCREWS AND LEAVE SLIGHTLY
LOOSE.
11
3
LOCATE ENCODER BASEPLATE
CHOOSE CENTERING CYLINDER OR UNDERSIDE LOCATING PINS.
CENTERING CYLINDER: LOCATE ENCODER BASEPLATE WITH
CENTERING CYLINDER. WHEN IN PLACE, TIGHTEN MOUNTING SCREWS.
LOCATING PINS: WITH LOCATING PINS PROPERLY SEATED IN
CORRESPONDING RECEIVING HOLES IN ENCODER BASEPLATE,
TIGHTEN MOUNTING SCREWS.
4
LOCATE ENCODER MODULE AND CODEWHEEL
ALIGN ENCODER MODULE AND CODEWHEEL AS SHOWN.
BE CAREFUL NOT TO DAMAGE THE ENCODER INTERNAL COMPONENTS
WITH THE CODEWHEEL.
BRING THE ENCODER MODULE AND CODEWHEEL DOWN SUCH THAT
THE ENCODER MODULE LOCATING HOLES (ON ITS UNDERSIDE)
MATE WITH THE BASEPLATE ROUND PINS. THE BASEPLATE SQUARE
PINS SHOULD SEAT INTO THE ENCODER MODULE MOUNTING
THRU HOLES.
CONCURRENTLY, BRING THE CODEWHEEL DOWN ONTO THE
MATING SHAFT.
12
5
ALLEN WRENCH TO TIGHTEN CODEWHEEL SET SCREW
CODEWHEEL GAPPING TOOL
WITH CODEWHEEL AND ENCODER MODULE IN PLACE,
PLACE CODEWHEEL GAPPING TOOL UNDER CODEWHEEL
AS SHOWN. INSERT THE ALLEN WRENCH INTO THE
CODEWHEEL SET SCREW AND TIGHTEN. REMOVE ALLEN
WRENCH AND GAPPING TOOL.
6
WITH CODEWHEEL AND ENCODER MODULE IN PLACE,
LOAD ENCODER HOUSING FROM TOP INTO "SNAPPED"
POSITION. INSURE THAT ANY CABLES FROM THE
ENCODER MODULE ARE FOLDED DOWN SUCH THAT
THEY EMERGE FROM THE BOTTOM OF THE HOUSING'S
REAR RECTANGULAR PORT.
13
Ordering Information for 2CH and 3CH Encoder Modules
Encoders Metal Codewheel (up to 100°C)
HEDS - 65
OPTION
RESOLUTION
(CYCLES/REV)
SHAFT
DIAMETER
OUTPUTS
THROUGH HOLE
0 – 2 CH
4 – 3 CH
0 – None
5 – 13.3 mm
(0.525 in.)
10 – 5/8 in.
05 – 3/16 in.
06 – 1/4 in.
08 – 3/8 in.
09 – 1/2 in.
A = 500
B = 1000
J = 1024
11 – 4 mm
12 – 6 mm
13 – 8 mm
05
06
08
09
10 11
12
13
HEDS-6500#
HEDS-6505#
HEDS-6540#
HEDS-6545#
A
B
J
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
A
B
J
*
*
*
A
B
J
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
A
B
J
*
*
*
*
*
Encoders Film Codewheel (up to 70°C)
HEDM
–
65
OPTION
RESOLUTION
(CYCLES/REV)
SHAFT
DIAMETER
THROUGH
HOLE
OUTPUTS
0 – None
5 – 13.3 mm
(0.525 in)
05 – 3/16 in.
10 – 5/8 in.
11 – 4 mm
12 – 6 mm
13 – 8 mm
T – 2000
U – 2048 2 CH only
0 – 2 CH
4 – 3 CH
06 – 1/4 in.
08 – 3/8 in.
09 – 1/2 in.
05
06
08
09
10 11
12
13
HEDM-6500#
HEDM-6505#
T
U
*
*
*
*
T
*
*
U
*
*
HEDM-6540#
HEDM-6545#
T
T
*
*
14
Ordering Information for 2CH and 3CH Encoder Modules with Line Driver
Encoders with Metal Codewheel (up to 100°C)
HEDL - 65
OPTION
RESOLUTION
(CYCLES/REV)
SHAFT
DIAMETER
OUTPUTS
THROUGH HOLE
0 – 2 CH
4 – 3 CH
0 – None
5 – 13.3 mm
(0.525 in.)
11 – 4 mm
12 – 6 mm
13 – 8 mm
08 – 3/8 in.
09 – 1/2 in.
10 – 5/8 in.
A = 500
B = 1000
J = 1024
05
06
08
09
10 11
12
13
HEDL-6540#
HEDL-6545#
A
*
*
B
J
*
*
*
Ordering Information for HEDS=76XX Centering Tools
HEDS-6510 Option 0
SHAFT
DIAMETER
10 – 5/8 in.
11 – 4 mm
12 – 6 mm
13 – 8 mm
05 – 3/16 in.
06 – 1/4 in.
08 – 3/8 in.
09 – 1/2 in.
05
06
08
09
10 11
12
13
HEDS-6510
0
*
*
*
*
*
*
*
*
Ordering Information for HEDS-65XX Codewheel
Gapping Tool
HEDS-6511
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/Interna-
tional), or 0120-61-1280(Domestic Only)
Korea: (+65) 6271 2194
Malaysia, Singapore: (+65) 6271 2054
Taiwan: (+65) 6271 2654
Data subject to change.
Copyright © 2002 Agilent Technologies, Inc.
Obsoletes 5988-5860EN
May 3, 2002
5988-6618EN
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