Optical encoders use a glass disk with a pattern of lines deposited on it, a metal or plastic disk with slots (in a rotary encoder), or a glass or metal strip (in a linear encoder). Light from an LED shines through the disk or strip onto one or more photodetectors, which produce the encoder’s output. An incremental encoder has one or more of these tracks, while an absolute encoder has as many tracks as it has output bits.
London Rhodes
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Topics: How to Choose An Encoder, Encoder Signals Output, Optical Encoders
The four most common indications that your encoder is producing optimal output include:
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Topics: Installation, Encoder Signals Output, Troubleshooting
The ground leads of the oscilloscope should be connected to the common on the encoder. The probe clips should be connected to the channel you are measuring. The encoder should be powered and rotating for the oscilloscope to get a proper reading.
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Dynapar offers a three piece solution for conveyor systems including an encoder, measuring wheel and bracket. A few brackets are specifically designed for use on a conveyor.
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Topics: How to Choose An Encoder, Installation, Absolute Encoders
Encoder tethers are designed and engineered to allow the encoder to float with the run-out of the motor shaft. If the tether is bolted too rigidly to the motor, then run-out from the motor can damage the encoder bearings. It is critical to use the parts provided with the encoder during installation to ensure the tether is properly placed. Avoid bending the tether from the position in which it is provided from the factory.
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Topics: Installation, Troubleshooting
Without a functional tether, the wobble from the motor shaft will create additional wear on encoder bearings causing them to fail. Friction from bearing failure will cause encoder electronics to overheat.
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Topics: Installation, Troubleshooting
A tether is an anti rotation device mounted between motor and encoder to ensure the encoder remains stationary while the motor is running.
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Topics: Installation, Absolute Encoders, Troubleshooting
In order to provide manufacturing flexibility, the 16002070177 Measuring Wheels can be made from Garolite G10, CE, LE or XX. Depending on the grade the color could be green, brown or black. We also offer rubber measuring wheels.
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Topics: Measuring Wheels
You can calculate the number of shaft positions on your encoder with the following equation: 2x where X = the resolution of your absolute encoder in bits.
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Topics: Installation, Absolute Encoders, Encoder Signals Output, Troubleshooting
RPM x PPR / 60 = Frequency Response in Hertz
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Topics: Troubleshooting
