Hello, I a a noob in electronic and for my project I have plug my stepper with my DM542T like this: My powersupply 48V, 10A is this one Amazon.de and my stepper datasheet is this one: https://ooznest.co.uk/wp-content/uploads/2018/07/NEMA23-Stepper-Motor-175-280.jpg. I have followed the advices to takes one that allow me to have 10A to have more torque. But when I use it for like 10 minutes, I can hardly touch it because it gets so hot. What could I do to avoid it? Regards, Benjamin
That's a 2.8A Peak motor. Running setting would be around 1.8-2A. Use DIP switches on driver and table on top cover - set it to 2A. Or even lower Peak = the DO NOT EXCEED value (not the recommended value) - not sure of your frame of reference, but if it was a Car engine, the 2.8A is the RPM Redline. Say 6500RPM. But you'll cruise along most efficiently and without damage around 3000RPM for example.
The DM5402T datasheet is here: https://www.omc-stepperonline.com/download/DM542T.pdf So if I refer to this table I should use the third line with Peak Current To 1.91A that is what you mean? For the next time does it make sense for me to use such a powerfull power supply who is able to deliver 10A then?
1.9's a good start yeah. If you need a little more torque - 2.37. Can go a little higher - but comission it as needed, don't set it higher than you need. If you can't stall the machine in normal use its more than fine.
It gets even more complicated than just amps in = amps out Stepper drivers convert voltages and creates sine waves! They do a lot of work Stepper Motors are constant current devices. The driver modifies the output continually to keep the current to the setpoint. Simplied: Ohms Law says V=I*R For example a 3A motor (max rating, not recommended) with 3v coil rating (like ours). Needs 9w per coil * 2 coils =18w per motor max needed at 48v thats only going to draw 0,375A from the PSU. And thats only when the motor is stopped and holding position. Only time both coils are on. During moves it phases between the coils If you need advice, come to us next time (;
