Some issue on pairing vfd YL620-A with TB4 on Mesa 7i76e

Good afternoon everyone,

I am trying to control my 2.2 KW spindle with linuxcnc with PWM 0V to 10V.
My spindle came as a kit and inside this kit was present a VFD type YL620-A.
So what I did was trying to follow this guide instructions .
Unfortunately I was not able to make it work.
When I tried to run the spindle from the vfd without connecting the TB4 on the Mesa, everything worked fine so the problem must be or in the wiring the vfd to the TB4 or in the hal file or ini file.
So I wired the vfd to the TB4 in the following way:


pin1 to GND
pin2 to VI1
pin3 to 10V
pin4 not connected
pin5 and pin7 to XGND
pin6 to FWD
pin8 to REV

I attached also the manual of my vfd, my hal and ini file.

The symptomatology after power up my machine and the vfd is the followed:
I have tried to give some MDI command to test the spindle.

m3 s50
raising frequency numbers on vfd dysplay in order of 1.5 /2.5 HZ and spindle not moving
m5

m3 s200
raising frequency numbers on vfd dysplay in order of 1.5 /2.5 HZ and spindle not moving
m5

My vfd setting are the default excepted the followed:
P00.01 set to 1
P07.08 set to 3

Thank you very much for your interest and help.

Regards,
V.

Sorry I forgot to specify that my settings for the Voltage set up rate of the vfd are:

1 and 2 up
3 and 4 down

Thanks

V.

Good evening

Some improvements; with the settings in the attached table the spindle is spinning in the right direction; the vfd displays about 82-86 Hz for every MDI command like m3 s20; m3 s1000, m3 s 400.
The spindle does not reverse with MDI command like m4 s300.

Lobster's steps.

Regards,
V.

Hello everyone
Finally I manage to solve the problem.
The only issue is that m4 does not seems to work, but not a big seal really.
I will post soon my solution if can help.

Regards,
V.

Hi everybody

I just added a sketch of the wiring between the vfd and the mesa card and at this link test you can see some test.
As I said I did not manage to get m4 working.
Hope this help

Regards,
V.

For reverse to work, Looks like you would need to set P00.16 to 1
to select ENA/DIR mode instead of the default FWD/REV mode

Hello
Thank you very much for your reply.

I will try and update the result.

Thanks again for your help.

Regards,
V.