HEDM-550X Datasheet, PDF (1/14 Pages) AVAGO TECHNOLOGIES LIMITED – Quick Assembly Two and Three Channel Optical Encoders

HEDM-550x/560x
Quick Assembly Two and Three Channel
Optical Encoders
Data Sheet
HEDM-550x/560x
HEDS-550x/554x, HEDS-560x/564x
Description
The HEDS-5500/5540, HEDS-5600/5640, and HEDM-
5500/5600 are high performance, low cost, two and
three channel optical incremental encoders. These
encoders emphasize high reliability, high resolution,
and easy assembly.
Each encoder contains a lensed LED source, an inte-
grated circuit with detectors and output circuitry, and
a codewheel which rotates between the emitter and
detector IC. The outputs of the HEDS-5500/5600 and
HEDM-5500/ 5600 are two square waves in quadrature.
The HEDS-5540 and 5640 also have a third channel
index output in addition to the two channel quadrature.
This index output is a 90 electrical degree, high true
index pulse which is generated once for each full
rotation of the codewheel.
Features
• Two channel quadrature output with optional index pulse
• Quick and easy assembly
• No signal adjustment required
• External mounting ears available
• Low cost
• Resolutions up to 1024 counts per revolution
• Small size
• –40°C to 100°C operating temperature
• TTL compatible
• Single 5 V supply
The HEDS series utilizes metal codewheels, while the
HEDM series utilizes a film codewheel allowing for
resolutions to 1024 CPR. The HEDM series is nont
available with a third channel index.
These encoders may be quickly and easily mounted to
a motor. For larger diameter motors, the HEDM-5600,
and HEDS-5600/5640 feature external mounting ears.
Applications
The HEDS-5500, 5540, 5600, 5640, and the HEDM-
5500, 5600 provide motion detection at a low cost,
making them ideal for high volume applications. Typical
applications include printers, plotters, tape drives,
positioning tables, and automatic handlers.
The quadrature signals and the index pulse are accessed
through five 0.025 inch square pins located on 0.1 inch
centers.
Standard resolutions between 96 and 1024 counts per
revolution are presently available. Consult local Avago
sales representatives for other resolutions.
Note: Avago 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.
ESD WARNING: NORMAL HANDLING PRECAUTIONS SHOULD BE TAKEN TO AVOID STATIC DISCHARGE.