Encoder integration in 2016: New modes of installation, networking, and more

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Before We Start

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Lisa Eitel Motion Editor — Power Transmission and

Motion Control Design World Magazine

Encoder integration in 2016: New modes of installation, networking, and more

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Steve Dilts Business Development Manager

Encoder Products Co.

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New modes of installation, networking, and more

• Mechanical encoders • Optical encoders • Magnetic encoders • Capacitive encoders

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• Seal options • Mountings • Housings • Bearing options • Ratings • Modular setups

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• Control electronics • Signals • Capabilities and modes

… resolution … ... interpolation … ... signal processing …

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• Commutation channels • Prevention of signal degradation • Automatic gain control (AGC) • Signal processing • Control integration

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New modes of installation, networking, and more • Mechanical encoders • Optical encoders • Magnetic encoders • Capacitive encoders

Even optical types more rugged • Baumer

Incremental encoder Certified safety • SICK Encoder-specific cabling

Integrated controls • High-frequency inductive sensing • maxon

Hollow bores for easier install • US Digital

Greyhill mechanical

encoder

Opto-ASIC integration • EPC

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• Seal options • Mountings • Housings • Bearing options • Ratings … and modular setups

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Leine & Linde

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Direct replacements

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Control electronics and encoder signals

Go to encoder.com/technical-support for a library of white papers on this.

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Resolution, interpolation, and signal processing

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Resolution, interpolation, and signal processing

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Prevention of signal degradation

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FIELDBUS INTERFACES

SERIAL INTERFACES

ANALOG INTERFACES Sinusoidal — Voltage or current … and square-wave signals

ETHERNET INTERFACES

PARALLEL INTERFACES HTL (Push-Pull) • TTL (RS422)

EnDat • Siemens • Fanuc • Mitsubishi • Panasonic • Yaskawa • PROFIBUS INCREMENTAL FEEDBACK

POSITION TRACKING

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Steve Dilts Business Development Manager


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WHEN TO SPECIFY A MAGNETIC ENCODER MODULE

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Bearing Module

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Optical Magnetic

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1. Do you need a bearing-less encoder?

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❑  Excessive radial and axial loads (5-40 lbs typical)

❑  Extreme shock and/or vibration (50 g @ 11ms typical)

❑  Extreme temperatures (-20°C – 80°C typical)

❑  Contaminants (shaft seal IP64 typical)

- Factors that can cause bearing wear

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- High-speed application

❑  Most bearing encoders rated 6,000 - 10,000 RPMs

❑  Bearings are usually the limiting factor

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- Cost-sensitive application

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2. Do you have space constraints?

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3. Are contaminants present?

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4. Is sensor-to-disk air gap a risk factor?

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Some magnetic sensors are very tolerant of wide air gap and shaft misalignment

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❑  High accuracy

❑  High resolution

❑  Tolerant of

magnetic fields

Optical + Bearing

❑  Tolerant of contaminants

❑  Tolerant of high shock and

vibration

❑  Compact

❑  High speed

❑  Low cost

Magnetic Module

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Example: EPC’s Model 30M

❑  30mm diameter module

❑  Hall-effect sensor

❑  End-of shaft magnet

❑  Up to 1024 CPR (incremental)

❑  Optional IP69K Seal

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Example: EPC’s Model 30M

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Steve Dilts Business Dev. Mgr.


[email protected]

@EncoderProducts

Lisa Eitel Engineer Editor

Design World Network

[email protected]

DW_LisaEitel

Questions?


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Don’t Forget!

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