Hi all:
The motor depicted below is 12 years old and no longer listed in the manufacturer's catalog, nor is its built-in encoder. Based on my research so far, two of the five pins are likely +5VDC and GND, while one of the others is directly connected to the slotted disk inside. My question is, how do I go about mapping out the pins for testing? Will I get any meaningful results by Ohming out various pairs of pins, and if so, what sort of results should be looking for? If I were to provide, say +5VDC to the red wire and GND to the green wire, and then manually spin the shaft, would I get any meaningful results if I coupled the remaining pins to an oscilloscope?
My guess is that, properly configured, the encoder's outputs should be two out-of-phase square waves, whose duty cycle will correspond to the motor's speed and direction of rotation. I have not yet done any testing, for fear I may damage the encoder. Is that a reasonable risk, or are those encoders capable of being hooked up "wrong"?