I am so sorry, I have to ask such a stupid question. I got these stepper motors from a thrift shop, the owner had no idea what these are. And these have all labels damaged. Can anyone help me figure out the name, model, or wire codes of this. Thanks in advance It has pink, yellow, green, and blue wires. Here is its image: https://ibb.co/HDm7BKj
(1) OP Label seems to say
(2) Hmmm.... Google...
C720-02 stepper motor ...
(3) Profit! (as they say on Slashdot). I have seen 95 Euros and 250 dollars US on different websites.
After step (2), I took another look at the OP's label, and I'm pretty sure I can see the
23LM at the beginning now. Anyone else agree?
They all seem to have a standard wiring scheme.
Read the brochure... lots of info... stepping sequence on page 31. Use this as a start for your own research!
Probe the coil arrangement out with an ohmmeter, and assuming that might be satisfactory for you, then compare the resistance and maybe inductance to catalogs of manufacturers with similar physical sizes to estimate the current and voltage requirements and likely performance. Don’t worry too much about polarity, worst case you reverse one pair to reverse direction, most likely.
Don’t push them quite that far to be on the safe side. You can find many DIY webpages on the different types of steppers and how they might be driven.
If this seems like more work than it’s worth, then you can buy some Chinese steppers or surplus steppers from eBay etc. that have proper datasheets, but it’s not something we can or should do for you.
I got these stepper motors from a thrift shop
OK, nothing wrong with buying 2nd hand stuff. If I went into a thrift shop and saw a coffee table I liked I might buy it but, first I'd check to see if the legs were fairly stable and there wasn't any woodworm or cracking.
If in the same thrift shop I saw some 2nd hand cups and saucers I liked the look of I might inspect them for the maker's name (in case it was anything particularly interesting) but I would always look for cracks and defects of some kind.
And now the stepper motors; I can't decipher the maker's name and wiring details and neither can I inspect them for any internal defects such as shorts or blown windings or bad bearings or poor insulation.
My concerns would also be what voltage they run at and how to decipher the wires because wire colours won't help at all. I would likely conclude that the time I would spend resolving all these issues plus, the probability that they will have faults that I can't fix AND that there is no chance of getting a free replacement for anything is monetarily more than going to Farnell or RS and buying reputable parts with a data sheet and a money back guarantee.
Why should anyone buy them?