Stepper motor Pulse Signal Generator module

[john swift]

Hi Tom3

the M542 stepper drive enable is a negative logic input
the driver is enabled by no input to the enable terminals !
(+EN &-EN being at the same voltage or left disconnected )

do you have a link to the instructions for the pulse generator ?

its not obvious from the picture the function of the terminals you have connected to the stepper driver

since the M542 driver +ENABLE , +PULSE & +DIRECTION terminals are linked they should be connected to +5V from the pulse generator

grounding the -ENABLE will DISABLE the driver

John

PS
now I can see and edit my first post

the stepper driver opto isolator LED's have a diode in inverse parallel
with the three positive terminals linked

if the - direction is at a logic 1 (+5V) for example
the - enable and - step inputs will appear to work until the - direction is switched to logic 0 (0V)