[CNCINDUSTRY]

Hi.
"And no you would not use any of the relay output for a Pot" (I don't understand this sentence)

VFD is used to control the vacuum pump power for the vacuum table. I need to adjust the power with a potentiometer. When milling holes and grooves I need to increase performance. I meant to connect the potentiometer and pressure sensor in series.

Thanks

Do you need to controll the VFD dynamically？Then you need a controller which has analog input and output module. Such as PLC.
The potentiometer and pressure sensor connect to the controller's input terminals, and its output terminal connect to the VFD‘s analog input terminals.

[jirkamm]

Do you need to controll the VFD dynamically?Then you need a controller which has analog input and output module. Such as PLC.
The potentiometer and pressure sensor connect to the controller's input terminals, and its output terminal connect to the VFD‘s analog input terminals.

Yes. I need to dynamically. I told the supplier that I needed it this way. The supplier said - ok.
I see that I can throw away the VFD.
Thanks

[mactec54]

Yes. I need to dynamically. I told the supplier that I needed it this way. The supplier said - ok.
I see that I can throw away the VFD.
Thanks

Your VFD is not different from any other, I'm sure you could do what is needed if you get creative, your sensor would be controlled from your machine control and would output a voltage change to adjust the VFD Drives motor RPM as needed not hard to do at all

[jirkamm]

Your VFD is not different from any other, I'm sure you could do what is needed if you get creative, your sensor would be controlled from your machine control and would output a voltage change to adjust the VFD Drives motor RPM as needed not hard to do at all

It is true. I will have linuxcnc and Beckhoff EL3064 and EL4004 there. That could work.
Good idea.
Thanks