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HEDM-5121 Datasheet Preview

HEDM-5121 Datasheet

Two and Three Channel Codewheels

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HEDS-51X0/61X0 Series, HEDG-512X/612X Series
HEDM-512X/61XX Series
Two and Three Channel Codewheels
for use with Avago Technologies Optical Encoder Modules
Data Sheet
Description
Avago Technologies offers a wide variety of codewheels
for use with Avago Technologies’ HEDS-9000, HEDS-
9100, HEDS-9040, and HEDS-9140 series Encoder Mod-
ules. Designed for many environments, applica­tions,
and budgets, Avago Technologies’ code­wheels are avail-
able 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.
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 tem­
perature 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 rat-
ing. It is important to consider the specific application
operating environ­ment, long term operating condi-
tions, and temperature ranges when choosing a code­
wheel 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
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
Lead Free




Avago

HEDM-5121 Datasheet Preview

HEDM-5121 Datasheet

Two and Three Channel Codewheels

No Preview Available !

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 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 code-
wheels offer both high temperature and higher resolu-
tion, but are also more expensive. Consider the follow-
ing rating table when choosing a codewheel material.
Parameter
Symbol
HEDS-XXXX
Metal Codewheels
Storage
Temperature
TS
-40°C to +100°C
Operating
Temperature
TA
-40°C to +100°C
Humidity
Velocity
30,000 RPM
Shaft Axial Play
±0.25 mm
(±0.010 in)
Shaft Eccentricity
Plus Radial Play
±0.1 mm
(±0.004 in) TIR
Acceleration
250,000 Rad/Sec2
HEDM-XXXX
Film Codewheels
-40°C to +70°C
-40°C to +70°C
non condensing
30,000 RPM
±0.175 mm
(±0.007 in)
±0.04 mm
(±0.0015 in) TIR
250,000 Rad/Sec2
HEDG-XXXX
Glass Codewheels
-40°C to +100°C
-40°C to +100°C
12,000 RPM
±0.175 mm
(±0.007 in)
±0.04 mm
(±0.0015 in) TIR
100,000 Rad/Sec2
Recommended Operating Conditions
Parameter
Maximum Count Frequency
Shaft Perpendicularity
Plus Axial Play
Shaft Eccentricity Plus
Radial Play
HEDS-XXXX
Metal Codewheels
100 kHz
±0.25 mm
(±0.010 in)
±0.1 mm
(±0.004 in) TIR
HEDM-XXXX
Film Codewheels
200 kHz*
±0.175 mm
(±0.007 in)
±0.04 mm
(±0.0015 in) TIR
HEDG-XXXX
Glass Codewheels
200 kHz
±0.175 mm
(±0.007 in)
±0.04 mm
(±0.0015 in) TIR
Note: Avago Technologies 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.



Part Number HEDM-5121
Description Two and Three Channel Codewheels
Maker Avago
PDF Download

HEDM-5121 Datasheet PDF






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