I’m looking at a motor that has an 11-pin magnetic encoder. It uses differential signals and has U, V, W pins, but I want to use it with my ODrive v3.5 in a simpler single-ended way.
My plan is to just connect the A+, B+, and Z+ wires to the ODrive and ignore all the negative wires (A-, B-, Z-) and the U/V/W commutation wires. I want to make sure this won’t cause issues with the ODrive’s hardware or the startup calibration.
Encoder Specs
AM26C31 Line Driver.
Differential A, B, Z plus U, V, W commutation .
Resolution 2500 C/T or 4096 C/T.
Voltage: DC 5V.
Logic Leve VHigh≈3.5V and VLow≈0.1V.
Speed/Accuracy: Up to 20,000 RPM with 0.1∘ linearity.
My Main Questions:
Logic Levels: 0.1V(Low) and 3.5V (High) work fine with the ODrive’s internal 3.3V pull-ups on its 5V-tolerant pins?
Skipping U/V/W: Can I still do a normal ENCODER_MODE_INCREMENTAL startup without the U, V, and W wires connected?