hy vfd rs 485 gmoccapy
20 Jul 2021 11:56 - 20 Jul 2021 15:57 #215405
by Pauchuk
hy vfd rs 485 gmoccapy was created by Pauchuk
Hello, everyone. Thanks for your input in advance 
Past few days I have been trying to run my spindle using HY vfd drive and RS485 adapter. I could run spindle using windows 10 and Spindle Talker 2 app, so adapter works and my vfd settings are good. Now, it wont work in linuxcnc, nor axis nor gmoccapy interface. I will add all my cnc files, could someone tell me, what is the problem here.. Could there be some other settings, like USB serial etc. to look at. PS. I am new to linux. I do use debian 2.8. Sometimes I get this error message - see photo.(when linux starting, last photo).
Update: When I use command ls /dev/tty*, I see my adapter, if I disconnect it, it disappears. If I connect + and - other way on adapter, I cannot start gmoccapy, it gives me some error on vfd.
Past few days I have been trying to run my spindle using HY vfd drive and RS485 adapter. I could run spindle using windows 10 and Spindle Talker 2 app, so adapter works and my vfd settings are good. Now, it wont work in linuxcnc, nor axis nor gmoccapy interface. I will add all my cnc files, could someone tell me, what is the problem here.. Could there be some other settings, like USB serial etc. to look at. PS. I am new to linux. I do use debian 2.8. Sometimes I get this error message - see photo.(when linux starting, last photo).Update: When I use command ls /dev/tty*, I see my adapter, if I disconnect it, it disappears. If I connect + and - other way on adapter, I cannot start gmoccapy, it gives me some error on vfd.
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21 Jul 2021 15:59 - 21 Jul 2021 16:00 #215501
by Pauchuk
Replied by Pauchuk on topic hy vfd rs 485 gmoccapy
Update:
Now I dont get any errors on starting linuxcnc, but vfd just wont run.
Been trying to change baud rates and other variables.
Used these commands:
Does this mean linux sees vfd?? :
And here (I think), I try to run it..
Now I dont get any errors on starting linuxcnc, but vfd just wont run.
Been trying to change baud rates and other variables.
Used these commands:
Does this mean linux sees vfd?? :
And here (I think), I try to run it..
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22 Jul 2021 07:08 #215552
by Pauchuk
Replied by Pauchuk on topic hy vfd rs 485 gmoccapy
This tells you that the pins from the hy-vfd component are created so the component is running but it is not seeing a reply from the vfd.
So the question is are the setting correct for the serial port (ie baudrate, parity and so on) then the next hurdle is to get the command right that needs to be sent.
Also some VFD's need their serial interface enabled by setting the correct parameters.
Maybe try to swap the TX/RX lines
Setting up serial communication can be a bit of pain if there is no way to monitor what is happening on the line. Even worse trying to troubleshoot from afar.
[edit]
You seem to have used the VFD with the RS485 before so I guess the port settings and the vfd parameters should be ok and it looks like the component should take care of the command structure. Are you sure the RS485 to USB adapter works under linux?
Many are using rs485 with VFD`s..
How can I swap TX/RX lines? (explain it to a non linux person
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