HP HEDM-6120-T13 Two and three channel codewheels for use with agilent optical encoder module Datasheet

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Two and Three Channel
Codewheels for Use with Agilent
Optical Encoder Modules
Technical Data
Features:
• Codewheels Available in
Glass, Film, and Metal
• Available in Two Standard
Diameters
• Cost Effective
• Resolutions from 96 CPR to
2048 CPR
• For Use with HEDS-90XX/
91XX Series Two and Three
Channel Encoders
Description
Agilent Technologies offers a
wide variety of codewheels for
use with Agilent’s HEDS-9000,
HEDS-9100, HEDS-9040, and
HEDS-9140 series Encoder
Modules. Designed for many
environments, applications, and
budgets, Agilent codewheels are
available in Glass, Film, and
Metal. These codewheels are
available in resolutions from 96
Counts Per Revolution (CPR) to
1024 CPR on an 11 mm optical
radius and 500 to 2048 CPR on a
23.36 mm optical radius.
HEDS-51X0/61X0 Series
HEDG-512X/612X Series
HEDM-512X/61XX Series
Each of the three codewheel
materials offers a certain
advantage. Metal codewheels are
the most versatile, with a temperature rating up to 100°C,
resolution to 512 CPR (28 mm
diameter), as well as 2 and 3
channel outputs. Film codewheels
offer higher resolution (up to
1024 CPR on a 28 mm diameter)
with an operating temperature of
70°C. Glass codewheels combine
the best of film and metal, offering a temperature rating of 100°C
and resolutions to 1024 CPR on a
28 mm diameter.
In addition, each material offers a
specific reliability rating. It is
important to consider the specific
application operating environment, long term operating
conditions, and temperature
ranges when choosing a codewheel material.
Also See:
• HEDS-9000/HEDS-9100
Encoder Module Data Sheet
• HEDS-9000/9100/9200
Extended Resolution Encoder
Module Data Sheet
• HEDS-9040/9140 Three
Channel Encoder Module Data
Sheet
• HEDS-9700 Small Encoder
Module Data Sheet
2
Absolute Maximum
Ratings
It is important to consider the
environment in which the
codewheels will be used when
selecting a codewheel material. In
brief, metal codewheels are
Parameter
Symbol
rugged, but do not offer higher
resolution capabilities. Film
codewheels allow higher
resolution, but cannot endure the
same temperatures and high
humidity as metal. Glass
codewheels offer both high
temperature and higher
resolution, but are also more
expensive. Consider the following
rating table when choosing a
codewheel material.
HEDS-XXXX
Metal Codewheels
HEDM-XXXX
Film Codewheels
HEDG-XXXX
Glass Codewheels
Storage
Temperature
TS
-40°C to +100°C
-40°C to +70°C
-40°C to +100°C
Operating
Temperature
TA
-40°C to +100°C
-40°C to +70°C
-40°C to +100°C
Humidity
non condensing
Velocity
30,000 RPM
30,000 RPM
12,000 RPM
Shaft Axial Play
± 0.25 mm
(± 0.010 in)
± 0.175 mm
(± 0.007 in)
± 0.175 mm
(± 0.007 in)
Shaft Eccentricity
Plus Radial Play
± 0.1 mm
(± 0.004 in) TIR
± 0.04 mm
(± 0.0015 in) TIR
± 0.04 mm
(± 0.0015 in) TIR
Acceleration
250,000 Rad/Sec2
250,000 Rad/Sec2
100,000 Rad/Sec2
Recommended Operating Conditions
HEDS-XXXX
Metal Codewheels
HEDM-XXXX
Film Codewheels
HEDG-XXXX
Glass Codewheels
Maximum Count Frequency
100 kHz
200 kHz*
200 kHz
Shaft Perpendicularity
Plus Axial Play
± 0.25 mm
(± 0.010 in)
± 0.175 mm
(± 0.007 in)
± 0.175 mm
(± 0.007 in)
Shaft Eccentricity Plus
Radial Play
± 0.1 mm
(± 0.004 in) TIR
± 0.04 mm
(± 0.0015 in) TIR
± 0.04 mm
(± 0.0015 in) TIR
Parameter
Note: Agilent Encoder Modules are guaranteed to 100 kHz, but can operate at higher frequencies. See Encoder Module Data Sheet for
specifications and output load recommendations.
*HEDM-6140 is guaranteed to 100 kHz with the HEDS-9040 #T00 module.
3
Encoding Characteristics
Encoding characteristics over
recommended operating range
and recommended mounting
Part Number
tolerances unless otherwise
specified. Values are for worst
error over a full rotation. Please
refer to Encoder Module Data
Description
Symbol
Sheet for definitions of Encoding
characteristics.
Min.
Typ.
Max.
Units
HEDS-51XX
Cycle Error
Position Error
∆C
∆θ
3
10
5.5
40
°e
min. of arc
HEDS-61XX
Cycle Error
Position Error
∆C
∆θ
3
7
5.5
20
°e
min. of arc
HEDM-512X
Cycle Error
Position Error
∆C
∆θ
3
4
7.5
40
°e
min. of arc
HEDM-61XX
Cycle Error
Position Error
∆C
∆θ
3
2
7.5
20
°e
min. of arc
HEDG-512X
Cycle Error
Position Error
∆C
∆θ
3
4
7.5
30
°e
min. of arc
HEDG-612X
Cycle Error
Position Error
∆C
∆θ
3
2
7.5
15
°e
min. of arc
Reliability
In addition to the absolute
maximum specifications of
codewheels, the environment
characteristics of the application
are also important. For example,
consistent, large temperature
swings over the life of the product
will affect the codewheel
performance characteristics
depending on the material. The
following reliability table shows
results of lifetests under varying
conditions of temperature and
humidity.
Glass Codewheel Tests
Test
Duration
Number of Parts
Number of Failures
Storage at 100°C
1000 hours
44
0
Rotating at 100°C
500 hours
10
0
Temperature Cycle: -40°C to +100°C
500 cycles
98
0
Temperature/Humidity: 85°C/85% R.H.
500 hours
43
0
Duration
Number of Parts
Number of Failures
Storage at 70°C
1000 hours
118
0
Rotating at 70°C
500 hours
10
0
Temperature Cycle: -40°C to +70°C
500 cycles
66
0
Temperature Cycle: +20°C to +40°C
1000 cycles
64
0
Temperature Cycle: +20°C to +55°C
1000 cycles
46
0
Temperature Cycle: +20°C to +70°C
500 cycles
50
0
Film Codewheel Tests
Test
4
Mounting Rotary
Encoders with
Codewheels
There are two orientations for
mounting the Agilent encoder
module and Agilent codewheel.
Figure 1a shows mounting the
module with side A as the
mounting plane. Figure 1b shows
mounting the module with side B
as the mounting plane. When
assembling the encoder and
codewheel, it is important to
maintain the tolerances of Side A
of the module, and the image side
of the codewheel. See module
Data Sheets for these tolerances.
MODULE SIDE B
IMAGE SIDE
OF CODEWHEEL
MODULE SIDE A
IMAGE SIDE
OF CODEWHEEL
MODULE SIDE A
Figure 1a.
MODULE SIDE B
Figure 1b.
*Please note that the image side of the codewheel must always be facing the module Side A.
Mounting with Module
Side A as the Mounting
Plane
Mounting a high resolution or
three channel encoder with
Module Side A as the mounting
plane requires alignment pins in
the motor base. These alignment
pins provide the necessary
centering of the module with
respect to the center of the motor
shaft. In addition to centering, the
codewheel gap is also important.
Please refer to the respective
encoder data sheet for necessary
mounting information.
Mounting with Module
Side B as the Mounting
Plane, using Agilent
Assembly Tools
Agilent offers centering tools and
gap setting tools only for the case
when the module is mounted with
Side B down. Please refer to the
Ordering Information Table to
choose the correct assembly
tools.
5
Assembly Instructions Using
Agilent Assembly Tools
Instructions
1. Place codewheel on shaft.
2. Set codewheel height:
(a) Place the correct gap
setting tool (per Ordering
Information Table) on motor
base, flush up against the
motor shaft as shown in Figure
2. The shim has two different
size steps. Choose the one that
most closely matches the width
of the codewheel boss. The
shim should not contact the
codewheel boss.
(b) Push codewheel down
against gap setting shim. The
codewheel is now at the proper
height.
(c) Tighten codewheel
setscrew.
3. Insert mounting screws
through module and thread
into the motor base. Do not
tighten screws.
4. Slide the HEDS-8905 or HEDS8906 centering tool over
codewheel hub and onto
module as shown in Figure 3.
The pins of the alignment tool
should fit snugly inside the
alignment recesses of the
module.
5. While holding alignment tool in
place, tighten screws down to
secure module.
6. Remove alignment tools.
IMAGE SIDE OF CODEWHEEL
CENTERING TOOL
ALIGNING RECESSES
CODEWHEEL
GAP SETTING SHIM
MODULE SIDE A
MODULE SIDE A
CODEWHEEL
MODULE SIDE B
Figure 2. Alignment Tool is Used to Set Height of
Codewheel.
MODULE SIDE B
Figure 3. Alignment Tool is Placed over Shaft and onto
Codewheel Hub. Alignment Tool Pins Mate with
Aligning Recesses on Module.
6
Mechanical Drawings
5.94
(0.234)
MAX.
# 2-56 SETSCREW
USE 0.035" HEX WRENCH
25.40 (1.000) MAX.
1.80
(0.071)
50.0 (1.97)
DIA.
MOUNTING BOSS –
NOT USED ON
6 mm & 1/4"
I.D. HUBS
12.70
(0.500)
MAX.
26.67
(1.050)
MAX.
10.16
(0.400)
# 2-56 SETSCREW
USE 0.035"
HEX WRENCH
3.58
(0.141)
0.04 MAX.
DIMENSIONS IN MM (INCHES)
MOUNTING
BOSS
18.0
(0.71)
8.99
(0.354)
MAX.
DIMENSIONS IN MM (INCHES)
0.054
Figure 4. HEDS-5120 Codewheel.
Figure 5. HEDS-6100 Codewheel.
5.95
(0.234)
MAX.
1.80
(0.071)
25.7 (1.01)
DIA. MAX.
MOUNTING BOSS
SETSCREW
INDEX PULSE
REFERENCE
MARKER
INDEX PULSE
POSITION
130° ± 5°
TYPICAL
12.70
(0.500)
MAX.
10.16
(0.400)
3.58
(0.141)
ROP = 11.00 mm (0.433 in.)
DIMENSIONS IN MM (INCHES)
Figure 6. HEDS-5140 Codewheel Used with HEDS-9140.
0.20
(0.008)
7
# 2-56 SETSCREW
USE 0.035" HEX WRENCH
50.6 (1.99)
DIA. MAX.
MOUNTING BOSS
SETSCREW
INDEX PULSE
REFERENCE
MARKER
INDEX PULSE
POSITION
26.67
(1.050)
MAX.
18.0
(0.71)
130°
TYPICAL
8.99
(0.354)
MAX.
ROP = 23.36 mm (0.920 in.)
DIMENSIONS IN MM (INCHES)
Figure 7. HEDS-6140 Codewheel Used with HEDS-9040.
4.2 MAX.
8.5 MAX.
5.9 MAX.
2-56 SETSCREW
USE 0.035" HEX WRENCH
0.18
(0.007)
0.18
(0.007)
15.3 MAX.
10.2 MAX.
36.5
12.6 MAX.
18 MAX.
22.50 MAX.
(0.886)
2-56 SETSCREW
USE 0.035" HEX WRENCH
25.56 DIA.
(1.006) MAX.
ARTWORK SIDE
(HEDM-5121)
ARTWORK SIDE
(HEDM-5120)
DIMENSIONS IN mm (INCHES)
Figure 8. HEDM-5120 Codewheel/HEDM-5121 Codewheel.
50.48 DIA.
(1.980) MAX.
ARTWORK SIDE
(HEDM-6121)
ARTWORK SIDE
(HEDM-6120)
DIMENSIONS IN mm (INCHES)
Figure 9. HEDM-6120 Codewheel/HEDM-6121 Codewheel.
8
2-56 SETSCREW
USE 0.035" HEX WRENCH
0.55
(0.022)
0.55
(0.022)
5.51
(0.217)
10.2 MAX.
25.56 DIA.
(1.006) MAX.
2-56 SETSCREW
USE 0.035" HEX WRENCH
ARTWORK SIDE
(HEDG-5121)
12.6 MAX.
ARTWORK SIDE
(HEDG-5120)
17.98 MAX.
(0.708)
50.48 DIA.
(1.987) MAX.
DIMENSIONS IN mm (INCHES)
Figure 10. HEDG-5120 Codewheel/HEDG-5121 Codewheel.
8.43
(0.332)
INDEX PULSE
POSITION
130°
TYPICAL
22.50 MAX.
(0.886)
36.5
ARTWORK SIDE
(HEDM-6141)
ARTWORK SIDE
(HEDM-6140)
DIMENSIONS IN mm (INCHES)
Figure 12. HEDM-6140 Codewheel/HEDM-6141 Codewheel.
25.4 MAX.
ARTWORK SIDE
(HEDG-6120)
Figure 11. HEDG-6120 Codewheel/HEDG-6121 Codewheel.
50.48 DIA.
(1.987) MAX.
SETSCREW
ARTWORK SIDE
(HEDG-6121)
22.6 MAX.
DIMENSIONS IN mm (INCHES)
2-56 SETSCREW
USE 0.035" HEX WRENCH
0.18
(0.007)
8.43
(0.332)
9
Ordering Information Encoder Modules, Codewheel and Assembly Tools
Metal Codewheels
0
HEDS-9100 Option
modules
0 HEDS-5120 Option
codewheels
Rop = 11 mm,
Assembly Tools
2 Channels
Centering Gap-Setting
HEDSHEDSShaft Diameter
8905
8901
01 - 2 mm
Resolution
(Cycles/Rev)
K - 96 CPR
C - 100 CPR
D - 192 CPR
E - 200 CPR
F - 256 CPR
G - 360 CPR
H - 400 CPR
A - 500 CPR
I - 512 CPR
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
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDS-5120#
A
C
*
*
*
*
*
*
D
*
*
*
*
*
*
*
*
*
E
*
F
*
*
G
*
H
*
I
*
K
*
HEDS-9140 Option
modules
*
0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
0 HEDS-5140 Option
codewheels
Resolution
(Cycles/Rev)
C - 100 CPR
E - 200 CPR
F - 256 CPR
G - 360 CPR
A - 500 CPR
I - 512 CPR
Rop = 11 mm,
Assembly Tools
3 Channels
Centering Gap-Setting
HEDSHEDSShaft Diameter
8905
8905
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
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDS-5140
A
*
C
*
*
E
*
*
*
*
F
*
*
G
I
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
10
Ordering Information (Cont’d.)
HEDS-9000 Option
modules
0
0 HEDS-6100 Option
codewheels
Rop = 23 mm,
Assembly Tools
2 Channels
Centering Gap-Setting
HEDSHEDSShaft Diameter
8906
8901
06 - 1/4 in.
Resolution
(Cycles/Rev)
A - 500 CPR
B - 1000 CPR
08 - 3/8 in.
09 - 1/2 in.
10 - 5/8 in.
11 - 4 mm
12 - 6 mm
13 - 8 mm
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDS-6100#
A
*
B
HEDS-9040 Option
modules
*
0
*
*
*
*
*
0 HEDS-6140 Option
codewheels
Rop = 23.36 mm,
Assembly Tools
3 Channels
Centering Gap-Setting
HEDSHEDSShaft Diameter
8906
8906
06 - 1/4 in.
Resolution
(Cycles/Rev)
B - 1000 CPR
J - 1024 CPR
08 - 3/8 in.
09 - 1/2 in.
10 - 5/8 in.
11 - 4 mm
12 - 6 mm
13 - 8 mm
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDS-6140#
B
*
J
*
*
*
*
*
*
*
*
*
*
Note:
1. For the lower resolution, two channel encoders, (11 mm ≤ 512 CPR; 23.36 mm ≤ 1024 CPR) the centering tool and gap-setting shim
are not necessary, but sometimes helpful in an assembly process.
11
Ordering Information (Cont’d.)
Film Codewheels
HEDS-9000
modules
Option
0
Rop = 11 mm,
2 Channels
HEDM-512
codewheels
Option
0
Resolution
(Cycles/Rev)
B - 1000 CPR
J - 1024 CPR
Artwork Orientation
Shaft Diameter
0 - Artwork on hub
side (use when
module side B is
down)
1 - Artwork opposite
hub side (use when
module side A is
down)
02 - 3 mm
06 - 1/4 in.
11 - 4 mm
12 - 6 mm
Assembly Tools
Centering Gap-Setting
HEDSHEDS8905
8901
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDM-5120#
B
*
J
HEDM-5121
B
*
*
*
*
*
*
*
J
HEDS-9000
modules
Option
0
0
Rop = 23.36 mm,
Assembly Tools
2 Channels
Centering Gap-Setting
HEDSHEDS8906
8906
HEDM-612
codewheels
Option
Resolution
(Cycles/Rev)
T - 2000 CPR
U - 2048 CPR
Artwork Orientation
Shaft Diameter
0 - Artwork on hub
side (use when
module side B is
down)
1 - Artwork opposite
hub side (use when
module side A is
down)
06 - 1/4 in.
08 - 3/8 in.
12 - 6 mm
13 - 8 mm
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDM-6120#
HEDM-6121#
T
*
*
*
U
*
T
*
*
12
Ordering Information (Cont’d.)
HEDS-9040
modules
Option
0
0
Rop = 23.36 mm,
3 Channels
HEDM-614
codewheels
Option
Resolution
(Cycles/Rev)
T - 2000 CPR
Artwork Orientation*
Shaft Diameter
0 - Artwork on hub
side (use when
module side B is
down)
1 - Artwork opposite
hub side (use when
module side A is
down)
10 - 5/8 in.
12 - 6 mm
Assembly Tools
Centering Gap-Setting
HEDSHEDS8906
8906
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDM-6140#
T
HEDM-6141#
T
*
*
Glass Codewheels
HEDS-9100
modules
Option
0
0
HEDG-512
codewheels
Option
Resolution
(Cycles/Rev)
B - 1000 CPR
J - 1024 CPR
Rop = 11 mm,
2 Channels
Artwork Orientation
Shaft Diameter
0 - Artwork on hub
side (use when
module side B is
down)
1 - Artwork opposite
hub side (use when
module side A is
down)
06 - 1/4 in.
14 - 5 mm
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDG-5121#
B
J
*
*
*
Assembly Tools
Centering Gap-Setting
HEDSHEDS8905
8932
13
Ordering Information (Cont’d.)
HEDS-9000
modules
Option
0
0
HEDG-612
codewheels
Option
Resolution
(Cycles/Rev)
Rop = 23.36 mm,
Assembly Tools
2 Channels
Centering Gap-Setting
HEDSHEDS8906
8932
Shaft Diameter
12 - 6 mm
T - 2000 CPR
U - 2048 CPR
01 02 03 04 05 06 08 09 10 11 12 13 14
HEDG-6120#
U
*
www.semiconductor.agilent.com
Data subject to change.
Copyright © 2001 Agilent Technologies, Inc.
April 26, 2001
Obsoletes 5965-5891E (11/99)
5988-2630EN
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