Bsmce04u-pp Manual -

: 4 digital input channels (I1–I4) for limit switches, probes, or E-Stops.

The manual includes a troubleshooting section addressing common failures: bsmce04u-pp manual

Show sample calculation for one load condition. : 4 digital input channels (I1–I4) for limit

: Essential details, such as pin mapping for step/direction signals, are frequently undocumented by the sellers and must be sourced from forums like MachSupport . Setup & Configuration Highlights bsmce04u-pp manual

DrufelCNC provides a clear PDF manual, and BuildYourCNC offers a breakdown of red terminal wiring for step/direction signals.