Полез посмотреть информацию о прошивке Marlin - версия борда должна соответствовать по модели и по ыункциональным предназначениям левый винтовыз портов
#define DEFAULT_MAX_ACCELERATION { 3000, 3000, 100, 10000 } A value of 3000 means that an axis may accelerate from 0 to 3000mm/m (50mm/s) within a one second movement.
For a mechanical end stop that is wired as normally connected (NC), a digital signal of 1 will be read when an axis is in contact with the limit switch. In this case End stop inverting needs to be false. End stop inverting needs to be true if the mechanical end stop is wired as normally open (NO).