Hello,

Does anybody have a solution how to integrate digital feedback of VFD.
Because if the spindle is not rotating the program should not start to moving the axes.

I need this because sometimes the command to start VFD is not working and spindle not start to rotate.

What signals does the VFD output?

I have Siemens micromaster which have DO-motor is running.

You will have to connect this signal to PoKeys, then use conditionals in your G-code after turning on the spindle. Mach3 might have checking built-in, but I am unaware of this feature.

Thanks for answer I will try to do it in this way. Because I have a problem with the output for turn on the spindle. Output sometimes work and sometimes NOT and I didn't found yet why and at what conditions the output stops working.

What do you use for the output?

In the plugin I defined at spindle CW M3 - #2 output.
In the mapping I defined Output #2 to pin 35.
Pin 35 is connected to 4N25 optocopler over 390ohm resistor.
And the other side of optocopler is connected to VFD.

The strange thing is when the output is not working I go to plugin - mapings and invert the output of pin35 and then cancel invert and the output works normal again.

Did you happen to configure PoExtBus to use the pins (35-37)? Then, it might happen that the pin is used by PoExtBus instead of a regular I/O pin.
Are you using PoKeys as pulse generator? If yes, how do you have it configured?

I'm using PoExtBusOC16CNC which have no IO periphery so I don't now where this pins could be used.
On the PoExtBusOC16CNC I have connected x,y,z leadshine stepper drivers.
On the pokeys are connected: 9,11,51- PoExtBusOC16CNC; 17- pwm output for VFD; 52- Emergency s.; 35- DO for start the spindle.
I can send a configuration if you are so friendly to check it.

Make sure that you have the PoExtBus on pins option disabled in PoKeys settings (Peripherals > PoExtBus).