CNCEST 6040 VFD rewire to ST-V2 board help

Hi Everyone,

I have acquired a broken little 6040 machine to repair, however I am having a little trouble.

So far its had new drivers / steppers and is getting a ST-V2 board for now - controlled from a uc300eth

I am having trouble trying to determine the VFD connections to the BOB. ( VFD PRT E1500w )

[ATTACH=CONFIG]28408[/ATTACH

I am thinking the following:

Spindle on/off - FWD
Spindle on / off - COM

0v-10v + AVI
0v-10v - ?????

24v - 24v PSU
Grnd - 24v PSU

Is there anyone who can help ? :-)

Need to see the ST-V2 manual do you have a link.?

I've got a feeling that the board uses a common Gnd not an isolated Gnd for the Analog output. In which case I wouldn't use it.

Thanks Dean.

Here is a link to one with the same layout

https://www.omc-stepperonline.com/download/ST-V2.pdf

Is there anyway I can check that ?

I have a ground ( presumably common) for limit and EStop.

Thanks again for your help. Really appreciated.

Mike

Ps. How would you wire it if able too. ?

There is a post here re something similar but I dont fully understand it.

https://www.cnczone.com/forums/gener...utput-0-a.html

Attachment 28419

Quote:

---

Originally Posted by JAZZCNC

Need to see the ST-V2 manual do you have a link.?

I've got a feeling that the board uses a common Gnd not an isolated Gnd for the Analog output. In which case I wouldn't use it.

---

Could you recommend an alternative low cost one if I cant use this too please.

Part of me thinks to just buy a cheap VFD - got to be better than one in the machine

Hello,

Have you got this sorted as I have the same issue? I too have a CNET 6040

Just to recap my issue, I'm trying to connect my VFD (PRT-E1500W) to my BOB (Manual/book shown here - https://www.omc-stepperonline.com/download/ST-V2.pdf).

I've not had conformation of this yet, apparently the PWM on the right of the BOB is for Digital VFD, where as the PWM terminal on the bottom row (4th from the right) is for analogue VFD. Can anyone confirm this please, as I understand the bottom terminal could be connected to the AVI terminal of the PRT-E1500W.

I'm currently comfortable with all the other terminals.

Thanks in advance of moving this issue forward.

Quote:

---

Originally Posted by Extremeoffroader

I've not had conformation of this yet, apparently the PWM on the right of the BOB is for Digital VFD, where as the PWM terminal on the bottom row (4th from the right) is for analogue VFD. Can anyone confirm this please, as I understand the bottom terminal could be connected to the AVI terminal of the PRT-E1500W.
.

---

Sorry, I got the PWM ports the wrong way round. The right hand is 0-10V analogue and the bottom is PWM digital.