Build Log - Herbert

[A_Camera]

Hi,
If you read the UC300 manual in the Safety Notes it advises the connection through and Optically Isolated Breakout Board (BOB) to motor drives and external sensors!

Thats whay I am buying the CPO-10V as recommended by CNC4YOU.
Unless anyone else can offer something?

This is the sentence I answered: "I have found out that I cannot control the VFD via Mach with the current BOB, so need to swap for the CPO-10V from CNC4YOU."

All you need is to configure the UC300 plugin, Mach3 will handle it accordingly. If your BoB provides optical isolation on the digital inputs/outputs than you should be safe. I have never heard anyone putting optical isolators on the analog 0-10V to VFD. I think the VFD has that protection already. In fact, my VFD has optical isolators on the digital inputs/outputs also, and I think even cheap Chinese VFDs have that, so the VFD could be controlled safely even without a BoB. Stepper drivers are a totally different thing... not everyone of those has optical isolation. But... A BoB is necessary to have if you are using a UC300 because you need to split the signals to be able to install all the external devices.

BTW, I have the UC300 and been using it for quite a while now, and also read the manual...

In fact, just looked at your cabinet picture, and it looks like you have similar drivers to mine, your CW5045 are also supposed to have optical isolators on the inputs, so even those are safe to run with direct connection, but using a BoB to split the signals is more practical, even if not necessary in your (and my) case.