Schneider Altivar 320 wiring / setup help needed

[TadasM]

Hi Gents,

I finally received relay array (8 ch). While I was waiting, reassembled all electronics to proper enclosure:



While connected only power source, I have wired BOB power inputs (12v) and tried to power on and see if all is good. And my BOB gave some flash and smoke :



and here is closeup before this :


I'm not sure how this happened, but I only see that the bolt I have used, head was too big (even before it was ok..) Anybody see other issue here ? I hope that new BOB will no act same...

Now I'm waiting for the new BOB to arrive and hopefully get everything going...

[Clive S]

Where did the magic smoke appear from and exactly how did you connect it up.

[TadasM]

Hi Clive,

The smoke came from the component in small red circle. Before smoke - it got very bright...
It was only 12V power wires connected to the BOB from 12V supply.

[TadasM]

Hi,

Finally received new HDBB2. Connected and all looks good - I can drive all axis finally :) Only one issue - don't know why, UC300, when connected to external power source of 5V (jumper settings correct) my pc does not see the board connected... Once I disconnect external power source, reposition jumper to use 5V from USB - PC can see the board and all works just fine ? Any ideas why is that and is it ok to use it without external power source ?

Also, I'm bit confused how to drive relays from two different sources. I want to use outputs from HDBB2 and UC300 to activate relays. Here is a diagram how I connected it at the moment:



But, the relays is not working that way... (I can activate them via Arduino with that wiring though). I could use this type of connected (external power supply connected to power relay coil, but from where I shall take 5v to activate relay ?)



Could anyone help / guide me how I shall wire the relay board ?

Thanx :)