Run a stepper from 2 DM542 drive

[m_c]

I was going to do this in F360 to test the schematic section, but the default component choice is limited, so here's a quick doodle -



I've marked the resistor, but I'm assuming as the switch is listed as 12V, it already has an internal resistor for the LED part, so it shouldn't be needed, but without seeing the datasheet, I'd add it just in case.