Toshiba VF-S11 VFD for Lathe Spindle - Problems with setup/wiring to 7i76e

(all those measurements which i did bellow are with the SW1 switch on Sink, not on PLC)
Yes, when i click CW button on gmoccapy i get 23,95V on F but somehow when i measure on R i get 18.28V
Same when i click on CCW and measure on R i get 23,95V and 18,28V on F.

Same when measuring on the Mesa terminals.

I do not understand why i am getting 18.28V when the output is not on..
On Halshow everything works well.

When i take a wire and short between CC and F the motor runs in correct direction and when shorting CC and R it runs in the opposite direction (what is of course correct) so the terminals on the VFD are working.

Just a minute ago i made a bridge between CC and F, clicked on CW button and measured between CC and F = 0V.
When i take off the brigde = 16V, not matter if the the Spindle button is off or CW.
When CCW button is activated i get 18.29V

I hope this helps.

PS: I just tried the PLC Logic and only CCW worked, but not CW. When i switched back to SINK Logics, i am only getting 16v instead of 23,95 on the Output pins.


EDIT: I restarted LinuxCNC and now i am getting again 24V.
PS: With the PLC logic i did not get 23,95V, but somehow something like 1.8v or so.

1. You have to use source logic (as this is how the 7I76E outputs are wired)
2. The 7I76E outputs should be close to 24V when on (relative to field common)
3. If you apply +24V to F or R relative to the VFDs input common
4. Input common is "PLC" when in PLC mode

i don't know if that is true for your vfd but mine has an unpleasant behaviour.
I have a run and a direction input plus 7i76e digital potentiometer speed control.

When motor runs in one direction changing the direction input does not change anything. I have to set the run input to zero ( few millisec is enough) and then when setting run input it accepts the direction. I solve that via CL...
Mike

PCW, you are the best!
It works!
i just wanted to go out of the workshop after beeing here for 11 hours and trying to get it done.

When you posted about the manual Page B10, you wrote also "note the "Slide switch SW1:PLC", so i thought i have to switch to PLC.

No matter anymore, it is working and i am very happy.
Again, BIG THANKS to you and have a nice evening.

@Mike_Eitel : i just checked it and it works with my VFD, so i dont need to click on e.g. "spindle off button" to change the direction. (one problem less )

So, right now i will need to solve the scaling problem. When i do M3 S300, i get about 290rpm (from encoder velocity rpm pin), but when i do s1000 i get about 1100rpm.
Should i use lincurve or scale?
Also i have 2 gears in my headstock, so i would later like to have e.g 2 inductive sensors . One on the left side of the gear lever and the other one on the other side, so that the gear scale gets changed automaticly. Is it easy to do ?