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The motor has 5 wires, two for 24VDC for powering the motor, two 12VDC for powering a "pulse generator", and a single "pulse generator" wire.
I was not able to figure out what kind of signal this pulse generator delivers, so I started off by just starting the motor, waiting for some time and then stopping it.
However, I realized that this desynchronizes really quickly which results in the gate hitting the wall or not closing correctly.
So I tried analyzing the signal from the pulse generator, because the old board could do this starting and stopping precisely. I also observed that the original board would refuse to boot if the pulse cable was disconnected.
When the cable was removed while the motor was moving, the motor more or less stopped. The owners manual can be found here. Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Old motor with unknown pulse generator signal Ask Question.
Asked 11 months ago. Active 11 months ago. Viewed 49 times. Dave Tweed k 11 11 gold badges silver badges bronze badges. Twometer Twometer 4 4 bronze badges.
This appears to be a reverse engineering, modification, or repair question. Please be aware that such questions must involve specific troubleshooting steps and demonstrate a good understanding of the underlying design of the device being discussed, so that you can ask specific, focused questions that can be answered concisely.
Otherwise, the question is far too broad. More information can be found here: Is asking how to fix a faulty circuit on topic? I think I could be missing some common PWM singal or something. The owners manual can be found here smolka-berlin. It's much more likely that each pulse represents a certain increment of motion by the motor, and that the controller board is simply counting the pulses in order to determine whether the motor has moved far enough. The "teaching" procedure outlined in the user manual would be consistent with this interpretation.
But shouldn't the frequency change then if the motor was movingn slower? It's also possible that it is something like a variable-reluctance sensor, in which case, you would be looking for amplitude modulation of the pulses, where one cycle of modulation represents an increment of motor motion.
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EINHELL FA-G 2601 Installation And Operating Instructions Manual page 62