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Originally Posted by Astro
Tried to find some specs on that part number but found nothing? Had a look at the incremental encoders on the Hohner web site and all the ones i saw had both normal and inverted A B signals. How many pins/wires are there on your encoder?
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Round connector, 11 pins, pinout is on a label on the side
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Is the 9v to 24v supply requirement listed on the device? Maybe try it with 5v and see if it reduces the output voltages or just outputs nothing.
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Good idea. No signal at 5V.
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Maybe post a picture of the encoder and any labelling on the device. Might be something one of the Ecomodders recognises.
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I'll post pictures with tomorrow's post.
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Were the 10v levels from the resistor divider you described above or unloaded directly from the encoder outputs?
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10V when supplied with 12.4V from a battery, output loaded with the resistors (20K + 5K). It may be 10.1V, but definitely less than supply voltage.
I disconnected the resistor divider and checked things out. The unloaded signals are about the same - maybe 10.2V(the scope is not a good scope, and it's tough to tell exact voltages.)
I moved the scope probe on channel A to channel B ... and it showed B channel as positive!
WTF? ... would you believe that I have the invert pulled on B channel? ...
Yikes. So when I push the DARNED knob back in .. all is well! So I have a normal signal, not some magical inverted signal.
Onward - check that the voltage across the 5K resistor, make sure it is less than 5V, then connect the signal up to the controller