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Why was this deleted?

Well, my tests yesterday showed tiny problems with the frequency. If I set the output to zero/stop, the voltage at TB4, Pin 2 Spindle Out is 0,045V and the VFD shows 1,56 Hz. The Input voltage at Pin 3 is 9,99V.
Next inaccuracy is frequency setting at S3000 ->50Hz, output is at 2,3V and 45,8 Hz instead of 2,5V and 50Hz.

What can I do to put Pin 2 to zero Volt? Is this a problem of the 7i76e/Lcnc or do I have to calibrate my VFD?

Thanks for your help, again!
Hanno

I need to pass a specific value of the control word, but the pin cannot be written from .hal and I need to solve a problem with recording a value, I can't figure out where it comes from

Thanks, I sent a message.

of course, the 0-10V output voltage is the standard output, regardless of the others I want to input.

I am "internally hurt" by multiple signal processing, so I suggested that I also output a frequency signal that can be connected directly to the encoder input. or send it via any serial port / UART.

but ok. let's start with the basic 0-10V.
unfortunately I do not foresee an upgrade option for the end user, so I have to program everything before shipping.

But I see no problem in sending new versions.

for details you can contact me directly.

proma-elektronika.com/contact/

 Great! Let's move ahead.

Let's talk about 0-10 volt range first.
The Mesa THCAD is a voltage to frequency converter. The THCAD10 has a 10 volt full scale. The THCAD 5 has a 5 volt full scale. The newer THCAD2 can be configured to either have a 10v or 5v full scale range. For your hardware, the 10v range sounds best.
We read the frequency using an encoder A input (usually on a Mesa card) and then scale it internally back to a voltage. Usually we set the THCAD's on board frequency divider so we read 1/32 of the frequency when sending it to Linuxcnc.

To receive a frequency, we would simply connect your hardware direct to an encoder A input and not use a THCAD.

It would be easy to apply a mathematical function to the encoder frequency to convert to a voltage in a real time component written in C.

There are other options to read both voltage and frequency. For example, appropriate Ethercat slaves for both voltage and frequency are available.
I think for Ethercat I would prefer 0-10 volt.

Finally, I might mention that for plasma torch height control, we adjust the height using external offsets (this offset is external to the motion controller). A scaled count (much like a MPG) allows us to take the input and output a height adjustment of the error. But because you output a distance, it might be possible to manage height control via one of Linuxcnc's PIDS.
 
Anyway, if you have a contact us option on your website, let me know, and I will reach out to take things further.

newbynobi wrote:

May be the driver has a setting to set the repetition rate ?
My one reakts with a long touch like preesing the right mouse button. So I was also forced to set that time longer to be able to hold down the touch buttons for longer.

Norbert

I will look into the keyboard repeat settings to see if that changes anything, I'll have to look it up as I've only ever used windows so no idea where those settings would be but I'm sure google will let me know.