How to Troubleshoot My Incremental Encoder?
Step-by-Step Troubleshooting and Test Guide!
Kevin
Last Update 6 bulan yang lalu
Quadrature outputs (A, B,/A, /B) are typically found with Incremental or ISI encoders.
To find your pinout, click here and type your pinout number found on the label of your encoder.
A and B Channels or data lines, have signals which are inverse or negative of each other, /A (A Not) and /B (B Not). These are also referred to as A+/A- and B+/B-.
A and B are phase-shifted by 90 degrees, allowing for the determination of the direction of rotation.
Quadrature outputs can also have an index or reference pulse which pulses once per revolution of the encoder.
*Note: Quadrature output is a Square Wave and has a DC voltage level of either 5Vdc or 11-27Vdc.
How to Test an Incremental Encoder?
- Test the output channels by using an oscilloscope. You should see square waves on each channel. If not, the encoder may be faulty.
- The reference channel (Z, or I) will output high once per rotation of the shaft. This can be evaluated using an oscilloscope as well.
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