Nemo,
Let me make a few clarifications and one correction.
The easiest way to drive these servo drivers is with differential inputs, meaning STEP+,STEP-, DIRECTION+, DIRECTION- Many people do not know how to make this happen, so let me provide a little more direction.
You take the Step and Direction Signals and attach them to a differential driver, like the one below.
https://www.cnc4pc.com/c72-different...ne-driver.html
https://www.cnc4pc.com/pub/media/pro...AL_VER.1.2.pdf
You need a 5V supply and Common for the input to this board as well, so it can power the devices on the module.
The Panasonic driver needs a external power supply between 15V and 24V so it can power the optocouplers inside the driver. The wires that need to be attached to the driver are as follows:
Step+
Step-
Direction+
Direction-
Com+ (+15V to +24V)
Com- (the common side of the power supply)
Servo enable needs to be tied to the +15-24V common
Inhibit needs to be tied to the +15-24V common
You can get these drivers to move with single ended inputs but I have found for some reason this is extremely difficult with these drivers. Differential inputs for Step and Direction just work perfect.
You also need to adjust some parameters inside the driver. The driver needs to be put in position mode and the type of position inputs needs to be defined. You want it set to Step and Direction, not CW/CCW, or Quadrature.
Let me know if you have questions.
Russ