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6) V2 is connected to pin marked as 5v. This is probably a big assumption I made ... I don't actually know what voltage my motor operates on as I bought it in a hobby shop and there are not data sheets for it but I am making a guess here. The motor face plate has the following:PortescapMalaysiaS15M020N280403I googled a bit but didn't find anything. I checked their website and they don't have any stepper motors that match this. Can someone help ?
Hi,Quote from: roborg on May 07, 2010, 12:26:01 AM6) V2 is connected to pin marked as 5v. This is probably a big assumption I made ... I don't actually know what voltage my motor operates on as I bought it in a hobby shop and there are not data sheets for it but I am making a guess here. The motor face plate has the following:PortescapMalaysiaS15M020N280403I googled a bit but didn't find anything. I checked their website and they don't have any stepper motors that match this. Can someone help ?Google can.Here and Here are some data. Plenty more to be foundThere's datasheets on this pageYou just need to cut down the "S15M020N28". It's telling different things about the motor. I am not sure, but the initial S might stand for "Stepper" (just a wild guess). "15" should be the diameter and "M020" and "N28" seems to refer to the motor type and type of winding, but that's guesswork as well.I'm pretty sure that the one you have is a lot like like the one I linked to, even if the names have different prefixes, so it's likely a 5V stepper, 18°/step, but the torque is very different in the two I linked to (8.8 oz/in and 0.55 oz/in respectively). It may be due to differences in how they're wound, which will affect torque.The last line "0403" is a date code and only tells you that it was produced either in March 2004 or April 2003 - with the latter being the most likely (or it could be the 4th. week of 2003), no way of telling how they code it.If you choose to search on, just search for "15M020" as a starting point - "Malaysia" only tells you where the motor is manufactured, but it's still a German product.
Normal DC motors have a permanent magnet stator (the housing, more or less) and a coil rotor (the shaft). Power is delivered to the coil via brushes made out of carbon. The drawback of these motors is that the brushes get worn and need replacing. Also, while wearing down, they spread a fine charcoal dust which plays havoc on lubrication and, since charcoal is conductive, on the electronics as well.