forum.cncdrive.com

Hi all!

I was wondering if I can get some help connecting my actual setup. I used to have a RnR USB control board and recently bought a UC400ETH + UCSB combo but having some problems to connect it correcly to my HY VFD.
Here is what I have currently connected:

24V 10A PSU
Positive:

UC400ETH +
UCSB +
VFD VI

Common:

UC400ETH -
UCSB -
VFD ACM

I've read on another post that I should connect Output 14 on UCSB to VR(+10V) on my VFD, but I don't have any VR(+10V) on mine... have only a 10V but I think that outputs 10V, wich wouldn't be wise to connect to a UCSB Output (or so I think).

Any help would be greatly appreciated, better yet if anyone uses this setup and can provide the wiring diagram.

Thanks in advance all!

Are you trying to control the RPM with an analog 0-10V? Because you can't with what you have.

arcticus wrote:Hi all!

I was wondering if I can get some help connecting my actual setup. I used to have a RnR USB control board and recently bought a UC400ETH + UCSB combo but having some problems to connect it correcly to my HY VFD.
Here is what I have currently connected:

24V 10A PSU
Positive:

UC400ETH +
UCSB +
VFD VI

Common:

UC400ETH -
UCSB -
VFD ACM

I've read on another post that I should connect Output 14 on UCSB to VR(+10V) on my VFD, but I don't have any VR(+10V) on mine... have only a 10V but I think that outputs 10V, wich wouldn't be wise to connect to a UCSB Output (or so I think).

Any help would be greatly appreciated, better yet if anyone uses this setup and can provide the wiring diagram.

Thanks in advance all!

Please tell me you have NOT tried this yet/!!!.
DON'T.
You cannot do this with what you've got.
What you need is to buy a PWM to Analog 0-10V converter board.
You connect PWM side to Ucsb.
Then connect 0-10v side to the hy.

To add to my previous post.
Look for the board in my previous post image, it is available o Amazon.
It is 24v compatible via junper so you can use your existing 24v power supply.
PWM+ > 24V+
PWM- > UCSB output#
Analog AO > VI
Analog GND > ACM

Set spindle step to UCSB output# you've wired to PWM.
Enable spindle PWM. This should now run through the step output#, to the converter, then across to the 0-10v, then out to the hy VI.
(Do not assign an analog number to PWM) .

You still have 2nd port left empty for additional items by using this simple module.


There is another alternative too.
A cheap 5 axis DB25 board (connected via DB25-IDC26 cable to UC400eth on 2nd port if not using it).
This has a converter built into it on pin#1 that needs 24v to use it and the boards inputs.
This also gives you extra outputs for relays etc BUT: Outputs require 5v and can run 5v only such as 5v relays etc. You can get 5v from pc USB.

This exact one:

Another alternative is to use Dan's HY plugin, and an $8 RS-485>USB adapter.

ger21 wrote:Another alternative is to use Dan's HY plugin, and an $8 RS-485>USB adapter.

I second this..... Simple and works great.

Thanks for your replies. @Dazp1976 I have one of those exact boards (the 2nd one you mentioned and posted pic) on my pile of cnc stuff, in fact that was the first controller I ever bought. Never used it as I moved immediately to the RnR USB wich I used for about a year or so until now the actual UC400ETH.
So far I only have the servos working properly and was going for the Spindle connection. I'm glad I waited for your reply before I did anything

@ger21 and @George M thanks for your reply too