HEDL-6540#B11 Avago Technologies US Inc., HEDL-6540#B11 Datasheet

Incremental Encoder

HEDL-6540#B11

Manufacturer Part Number
HEDL-6540#B11
Description
Incremental Encoder
Manufacturer
Avago Technologies US Inc.
Series
HEDL-65xxr
Datasheet

Specifications of HEDL-6540#B11

No. Of Channels
3
Rotational Speed Max
30000rpm
Supply Voltage Range
4.5VDC To 5.5VDC
Encoder Resolution
1000CPR
Shaft Diameter
4mm
Operating Temperature Range
-40°C To +100°C
Pulses Per Revolution
1000 CPR
Number Of Channels
3
Supply Voltage
5 V
Product
Optical
Size / Dimension
56 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
HEDL-65xx, HEDM-65xx, HEDS-65xx Series
Large Diameter (56 mm), Housed Two and
Three Channel Optical Encoders
Data Sheet
Description
The HEDS-65xx/HEDL-65xx are high performance
two and three channel optical incremental encoders.
These encoders emphasize 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 HEDS-6540 / HEDL-6540 also have a third channel
index output in addition to the two quadrature outputs.
This index is an active high pulse that occurs once ev-
ery full rotation of the codewheel. Resolutions up to 1024
Counts Per Revolution are available in the two and three
channel versions.
The line driver option offers enhanced performance
when the encoder is used in noisy environments, or
when it is required to drive long distances.
The line driver option utilizes an industry standard line
driver IC AM26C31Q which provides complementary
outputs for each encoder channel. Thus the outputs
of the line driver encoder are A and
are 26C32 and 26C33.
The quadrature signals are accessed through a cable
and 10-pin female connector. Please refer to the or-
dering information at the end of this data sheet for a
selection matrix.
I for three channel versions. Suggested line receivers
A, B and
B, and I and
Features
• Two channel quadrature output with optional
• TTL compatible single ended outputs on HEDS Series
• 100ºC operating temperature for metal code wheel
• 70°C operating temperature for mylar code wheel
• Industry standard AM26C31Q CMOS line driver IC on
• Easy assembly, no signal adjustment necessary
• Resolutions up to 2048 counts per revolution
Applications
The HEDS-65xx / HEDL-65xx provide motion de-
tection to a very high resolution and accept a
variety of shaft sizes up to a maximum of 5/8 inches.
Typical applications include printers, plotters, tape
drives, positioning tables, and automatic handlers.
Note: Avago Technologies encoders are not recommend-
ed for use in safety critical applications. Eg. ABS braking
systems, power steering, life support systems and critical
care medical equipment. Please contact sales represen-
tative if more clarification is needed.
index pulse
HEDL Series
HEDL-65XX fig 1

Related parts for HEDL-6540#B11

HEDL-6540#B11 Summary of contents

Page 1

... The outputs of the HEDS-6500 are two single ended square waves in quadrature. The HEDL-65xx outputs are differential. The HEDS-6540 / HEDL-6540 also have a third channel index output in addition to the two quadrature outputs. This index is an active high pulse that occurs once ev- ery full rotation of the codewheel ...

Page 2

... SLOTTED (0.010) 13.2 ∅ (0.52) HEDL-54XX fig 3 65.9 (2.59) HEDS-65XX #xxx YYMM COUNTRY OF ORIGIN 24.9 (0.98) 30.2 (1.19) HEDL-65XX fig 4 24.0 ± 0.5 (192.2) 55.88 ∅ (2.200) 24.38 (0.960) 2.44 ∅ (0.096) 17.27 (0.680) ...

Page 3

... PHOTO DIODES LENS LED SIGNAL PROCESSING CIRCUITRY EMITTER CODE SECTION WHEEL 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 3 COMPARATORS INDEX-PROCESSING CIRCUITRY DETECTOR SECTION COMPARATORS ...

Page 4

... B. Due to this integrated phasing technique, the digital output of channel quadrature with that of channel B (90 degrees out of phase). In the HEDS-6540 / HEDL-6540 the output of the com- parator for the index pulse is combined with that of the outputs of channel A and channel B to produce the final index pulse ...

Page 5

... Output Waveforms OUTPUT PHASE OUTPUT CH I OUTPUT Waveforms for Encoders without Line Drivers Waveforms for Encoders with Line Drivers. HEDL-65XX fig ROTATION HEDL-65XX fig 7 2.4 V 0.4 V 2.4 V 0.4 V 2.4 V 0.4 V ...

Page 6

... HEDL-6545 -40 to +100 Celsius -40 to +100 Celsius -. Volts -.6 to Vcc Volts mA 30,000 RPM Inch/1000 2 2 Inch/1000 HEDL-6545 -40 to +100 Celsius 4.5 to 5.5 Volts 100 100 pF 100 100 kHz ±.05 ±.05 mm (±.002) (Inch/1000) ...

Page 7

... Index Pulse Width CH I fall after fall -25°C to +100°C -40°C to +100° rise after rise -25°C to +100°C -40°C to +100°C HEDL-654x Pulse Width Error Logic State Width Error Phase Error Position Error Cycle Error Index Pulse Width *Typical values specified at Vcc = 5.0 V and 25°C. ...

Page 8

... 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). ...

Page 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 2.62 46.00 (1.811) DIA. (0.103) BOLT CIRCLE ALIGNING PINS 2.39/2.34 DIA. – 0.76 HIGH (0.094/0.092–0.030) 15 ...

Page 10

... 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. 10 HEDL-65XX fig 11 HEDL-65XX fig 12 ...

Page 11

... 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. 11 LOCATE ENCODER BASEPLATE LOCATE ENCODER MODULE AND CODEWHEEL HEDL-65XX fig 13 HEDL-65XX fig 14 ...

Page 12

... HEDL-65XX fig 15 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. HEDL-65XX fig 16 ...

Page 13

... THROUGH HOLE 0 – – None 4 – – 13.3 mm (0.525 in.) 05 HEDS-6500 HEDS-6505 HEDS-6540 HEDS-6545 Encoders Film Codewheel (up to 70°C) HEDM – 65 THROUGH HOLE OUTPUTS 0 – None 0 – – 13 – (0.525 in) 05 HEDM-6500 HEDM-6505 HEDM-6540# T HEDM-6545# T RESOLUTION (CYCLES/REV 500 B = 1000 J = 1024 06 08 ...

Page 14

... Ordering Information for 2CH and 3CH Encoder Modules with Line Driver Encoders with Metal Codewheel (up to 100°C) HEDL - 65 OUTPUTS THROUGH HOLE 0 – – None 4 – – 13.3 mm (0.525 in HEDL-6540# B HEDL-6545 Ordering Information for HEDS=76XX Centering Tools HEDS-6510 Option 0 SHAFT DIAMETER 05 – ...

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