Hi everyone, I have a heating problem with nema 23 engines and dm 556y drivers. for the z axis I have a nema 23 of 1.26Nm 2.8A with driver dm 542y powered with 48v power supply setting sw 1,2,3,4: on - on - off - off. with this setting I have no heating problem. while nema 23 from 3 Nm 4.2 A with dm556y driver powered with 48v power supply setting sw 1,2,3,4: on - off - on - off I have overheating problems ... can someone help me?

link kit nema 23 :

https://www.omc-stepperonline.com/it/3-asse-passo-passo-cnc-kit-3-0-nm-425oz-in-nema-23-serie-e-motore-passo-passo-e-azionamento-and-alimentatore-91882304.html