[CNCMAN172]

This is a very simple interface with a power supply for motor drivers. Do you have a logic probe to see if you are seeing pulses on the PU pin? Most people do not have a scope to check the signals. Do you know that Bob is good? This should move with no issues

Russ

[Shelby5041]

The bob was brand new..i opened it today...the red 5v led is lit up and i have 5v at output pin on bob...sonething simple must be incomoatible with these old 1980s drivers that im missing....thsnks for the manual...ill look at it

[dazp1976]

The bob was brand new..i opened it today...the red 5v led is lit up and i have 5v at output pin on bob...sonething simple must be incomoatible with these old 1980s drivers that im missing....thsnks for the manual...ill look at it

See my latest post.
Maybe these aren't enabled by default and need the enable signal.
Maybe they prefer common cathode/anode wiring.
Info and manual are in my post.