AXBB NO Limit Switches

[dougie8]

Hi All,

I have the new AXBB board which I am really impressed with, I am however having some difficulty wiring up the limit switches to the board?

The limit switches I have are similar to the following:
https://m.dhgate.com/product/wholesale- ... 23383.html

Previously I had NCStudio and these were wired to the +5v, -5v, and the third wire was the signal wire.

I had wired these similar on the AXBB board with the two 5v wires connected to the 5v output port and the third wire wired to one negative connection on Port 2 with a link wire connected from the +5v into the + side on port 2.

There are 3x limit switches in total one for each axis, I managed to get X & Y working ok however I'm struggling on the Z axis all 3x limit switches are wired and the settings are identical.

Can some advise first if I have these wired correctly, if I have can you advise why the Z axis keeps going into reset?

Kind regards

[ger21]

Try wiring them as the manual shows, using 24V.

[dougie8]

Hi thanks for the reply, that is how the limit switches are wired only I was using the 5v power out instead would that make a difference using the 24v?

The limit switches were previously wired using 5v hence why I went down this route. If this is the reason they are not working i can switch over just wondering what the difference would be from the 5v to the 24v other than more power?

thanks again.

regards

[ger21]

I'll defer to the manual, where ALL examples of sensors and switches say to use 24V.

[cncdrive]

The isolated inputs on the AXBB-E are designed to work reliably with 12V to 24V voltage range.