UC300ETH: UCBB Vs UB1 breakout board ?

[Kitwn]

I can't see why the isolated outputs of the AXBB-E cannot drive step and direction inputs. These are normally optocouplers much like the input of an SSR as shown on page 22 of the manual. If you use a 5V supply then no resistor should be required.

[routercnc]

I can't see why the isolated outputs of the AXBB-E cannot drive step and direction inputs. These are normally optocouplers much like the input of an SSR as shown on page 22 of the manual. If you use a 5V supply then no resistor should be required.

Thank you Kitwin. OK they were probably not supplying 5V to the isolated outputs so it was not working for them. Looks like that option is back on again. I’m away from the PC so when I get back I’ll look at that page and get it clear in my mind.

On a general note how are other people provisioning for when multiple supplies are required such as lots of 24V or lots of 5V. My method has always been a single cable from the BOB then once into the conduit solder on additional cables to supply each device. Seems like there must be a neater way. I may go for terminal blocks and link them together with a clip in bus bar (Dinkle supply some nice purpose made DIN terminals which can be linked). I guess space on the BOB means they never supply repeated 24V or 5V outputs ?