HEDR-5xxx High Resolution Series
Three Channel Quick Assembly Encoders
Data Sheet
Features
• Three channel encoder A,B and I
• Available with ribbon cabling
• Single 5 V supply
• Resolution of 1200 to 3600 CPR
• Available in TTL compatible and line driver options
• Quick assembly
• IP40 rating
• No signal adjustment required
• Compact size: 35 mm (L) × 30 mm (W) × 20 mm (H)
• -40 °C to 100 °C or -20 °C to 85 °C operating temperature
option
Applications
High volume applications such as industrial printers,
plotters, tape drives, positioning tables ,and automatic
handlers
Note: Avago Technologies encoders are not recommended for use in safety critical applications, e.g., ABS braking
systems, power steering, life support systems and critical care medical equipment. Avago’s products and software are
not specically designed, manufactured or authorized for sale as parts, components or assemblies for the planning,
construction, maintenance or direct operation of a nuclear facility or for use in medical devices or applications. Customers
are solely responsible, and waive all rights to make claims against Avago or its suppliers, for all losses, damage, expense
or liability in connection with such use. Please contact your local sales representative if clarication is needed.
Description
The Avago HEDR-5xxx series encoders are higher resolution
replacements for our existing low cost HEDS-5xxx series
three channel optical encoders. These upgraded encoders
now come with resolution of 1200 cycles per revolution
(CPR) to 3600 CPR and are designed for easy assembly.
The base-plate and outer diameter of these encoders are
also compatible with the legacy HEDS-5xxx series, making
them ideal replacements for users who wish to upgrade
due to higher CPR requirements.
Each encoder contains a codewheel, LED source, detector
and integrated circuitry. As the codewheel rotates, the
detector IC generates two square waves in quadrature
and an index pulse (high state) of 90°e (gated to signal A
and B low), once per each full rotation of the codewheel.
The HEDR-5xxx encoders accommodate shaft diameters
of 2 mm to 8 mm and can operate in high temperature
environments of up to 100 °C.
2
Package Dimensions
HEDR-5xxx Extension series are available with ribbon cabling:
Ribbon Cable
Standard
30mm
35mm
20mm
Through hole
With external ear option
3
Mounting Considerations
Front View
Recommended motor’s mounting dimension
Max height
= 2.1 mm
Mounting screw
Ear option PCD
×
×
×
×
Easy mounting and installation
Motor base
* - Not applicable for 2048 cpr option. For 2048 cpr option, the recommend range is 11.5 to 13.5 mm.
It is recommended that adhesives (Hernon - Tubond™ 317) be applied to the screw-base plate interface to prevent
screw loosening due to CTE eect between screw and plastic at operating temperature..
Base plate shaft centering jig, to be
removed before snapping in the
encoder top assembly
Base plate compatible with
the legacy HEDS 5xxx series
Motor
shaft
Hex key to
secure Codewheel
to motor shaft
Screws for securing
base plate to motor
Encoder top
assembly
Max 14.5 mm*
(1.5mm Hex wrench)
M3 set screw
4
Absolute Maximum Rating
Parameter Value Units Notes
Storage Temperature, TS-40 to 100
-20 to 85
°CHigh temperature option
Low temperature option
Operating Temperature, TA-40 to 100
-20 to 85
°CHigh temperature option
Low temperature option
Supply Voltage, VCC -0.5 to 7 V
Output Current per Channel, IOUT
Voltage
Line Driver
5
20
mA
mA
Vibration 10G, 55 to 1000 Hz
Shaft Axial Play ±0.175 mm
Shaft TIR (max.) 0.05 mm
Output waveform
Direction of Rotation: When the encoder rotates in the counter-clockwise direction (as viewed from the top of the
encoder), channel A will lead channel B. If it rotates in the clockwise direction, channel B will lead channel A.
Index Pulse Width (PO): The number of electrical degrees that an index output is high during one full shaft rotation. This
value is nominally 90°e (1/4 cycle) gated to signals A and B, both at low state.
Encoder
Motor
shaft
C
360 e Deg
A
S1 S2 S3 S4
B
Po
IGated Index of 90°e
Codewheel rotation movement (Anti-clockwise)
P
Amplitude
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Units Notes
Temperature TA-40
-20
100
85
°C High temperature option
Low temperature option
Supply Voltage VCC 4.5 5.0 5.5 V Ripple < 100 mVp-p
Current Consumption 38 mA No load
Count Frequency [1] f 320 [2] kHz Velocity (rpm) x N/60
Notes:
1. Applicable for line driver output.
2. Valid for 2400 CPR and above.
5
Encoding Characteristics
Encoding characteristics over recommended operating range and recommended mounting tolerances, unless otherwise specied.
Part No. Description Symbol Typ. Max. Notes
HEDR-5xxx
(Three Channel)
Pulse Width
Logic State Width
Index Pulse Width
P
S
Po90°
P ± P/4
S ± S/2
Voltage Output
Rise time
Fall time
tr
tf
1 µs
Line Driver
Rise time
Fall time
tr
tf
200 ns
Mechanical Characteristics
Parameter Symbol Dimension Tolerance Units
Blind Hollow Shaft diameter Refer to ordering information g6 mm
Shaft Length 11.5 to 14.5*mm
Height 20 ± 0.5 mm
Width 30 ± 0.5 mm
Length 35 ± 0.5 mm
Hub Set Screw M3
* - Not applicable for 2048 cpr option. For 2048 cpr option, the recommend range is 11.5 to 13.5 mm.
Ribbon cable
Line Driver option
Pin No. Pin Assignment
1 NC
2VCC
3 GND
4 NC
5 A −
6 A +
7 B −
8 B +
9 I −
10 I +
Single-ended option
Pin No. Pin Assignment
1 NC
2VCC
3 GND
4 NC
5 NC
6 A +
7 NC
8 B +
9 NC
10 I +
500 ± 13 mm
RED LINE CABLE (pin 1)
20
15
17.5
30
16.3
12.8
6
2.54
PITCH = 2.54
For product information and a complete list of distributors, please go to our web site: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries.
Data subject to change. Copyright © 2005-2014 Avago Technologies. All rights reserved.
AV02-3823EN - October 30, 2014
Ordering Information
Available options for HEDR-5xxx-xxxx
HEDR-5 x x x -xx x x
| | | | | |
Mounting
Type
Output
Type
Output Wire
Cabling Type CPR
Temperature Rating/
Index Gating
Shaft
Diameter
5 – Standard E – Voltage (TTL) 2 – Ribbon B2 – 1200 0 – High /90° 0 – 2 mm
6 – External Ears L – Line Driver B4 – 1250 1 – High / 180⁰ 1 – 3 mm
7 – Standard
Through Hole
B8 – 1500 L – Std / 90⁰ 3 – 5/32”
BB – 1800 M – Std / 180⁰ 4 – 3/16”
8 – External Ears
Through Hole
BH – 2048
Note:
High → -40 to 100 °C
Std → -20 to 85 °C
5 – 1/4 “
BL – 2400 6 – 4 mm
BP – 2500 7 – 5 mm
BS – 2880 8 – 6 mm
BV – 3000 9 – 8 mm
BY – 3600
Currently available options
High temperature Standard temperature
1. HEDR-55L2-BH07 11. HEDR-55L2-BHL7
2. HEDR-55L2-BH09 12. HEDR-55L2-BHL9
3. HEDR-55L2-BL07 13. HEDR-55L2-BPL7
4. HEDR-55L2-BL09 14. HEDR-55L2-BPL9
5. HEDR-55L2-BV07 15. HEDR-55L2-BYL8
6. HEDR-55L2-BV09
7. HEDR-55L2-BY07
8. HEDR-55L2-BY09
9. HEDR-55L2-BP07
10. HEDR-55L2-BP09
Note: For other options, please refer to factory.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Avago Technologies:
HEDR-55L2-BV07 HEDR-55L2-BH09 HEDR-55L2-BY09 HEDR-55L2-BH07 HEDR-55L2-BP09 HEDR-55L2-BY07
HEDR-55L2-BV09 HEDR-55L2-BP07 HEDR-55L2-BHL9 HEDR-55L1-BH07 HEDR-55L2-BPL7 HEDR-56L1-BPL9
HEDR-55L2-BPL9 HEDR-55L2-BHL7 HEDR-55L1-BY07 HEDR-55L2-BYL8
