How to use an incremental encoder?

Release time:

2023-01-07

1. The resolution of incremental rotary encoders is different, the resolution is measured by the number of pulses generated per revolution, ranging from 6 to 5.400 or higher. The more pulses, the higher the resolution; This is one of the important bases for selection.

2. Incremental encoders usually have three signal outputs (six signals with a difference of six), generally using TTL level, pulse A in front, pulse B behind. Pulse A and pulse B differ by 90 degrees, and a Z pulse is emitted per revolution, which can be used as a reference mechanical zero point. Generally, B leads A and lead B or A are used to determine the direction. Our incremental encoder is defined as a shaft end encoder that rotates clockwise to forward rotation, a leading B is 90°, and B leads counterclockwise rotation of 90°. There are also differences, see the product description.

3. Using PLC to collect data, high-speed counting module can be selected; Using industrial computer to collect data, high-speed counting board can be selected; When using a microcontroller to collect data, it is recommended to select an input port with an optocoupler.

4. It is recommended that the B pulse be a forward (forward) pulse, the A pulse is a reverse (reverse) pulse, and the Z origin is a zero pulse.

5. Set up the counting stack in the electronic device.

Application advantages of rotary encoders

none

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