7iA0 outputs

Hey folks, I'm a german guy who lives in Paraguay. At first I want to say thank you for LinuxCNC and all the projects around
it. Wow, my head is exploding because of learning all the stuff. 

I am currently retrofitting an Edel Micromat 205HS CNC nibbler.

I want to buy a 7i97t because of the analog Perma Drive drivers and servos (A,A/,B,B/,0,0/, +-10V).

For all the sensors, switches and contactors I'd like to buy a 7iA0.

My question to you would be:

The machine has originally I/O cards from Labod and the 24V power supply for the output mosfets can be switched off with E-
Stop.

I want to do the same with the 7iA0 but I do not understand the outputs in the manual.

There it says

PIN 1 OUT -00-
PIN 2 OUT -00+
PIN 3 OUT -01-
PIN 4 OUT -01+
and so on.
Can I connect 24V+ to PIN 2, 4,... and so on so the card connects this PINs to PIN 1, 3,... and so on? Or is it the
other way round? As to speak, does the card connect the -PIN with the +PIN next to it when an output is switched on? If that's
the case, do I connect 24V+ to 2, 4,... or to 1, 3,...?

Thank you in advance for your help.

Greetings
Dennis

PIN+ must always be the most positive pin.

PIN+ is the NMOS drain connection and PIN-  the NMOS source connection.

So yes:

Sourcing connection:

+24V --> PIN+  --> PIN- --> load --> 24V Common

Sinking connection:

+24V --> load --> PIN+ --> PIN- --> 24V Common.

Great, thank you. So I will not burn the card nor do I have to follow the traces to figure it out myself. <3
Time to go shopping in the Mesa store.

May I ask you another question?
Did I understand it correctly that the 6 outputs on the 7i97t share one 24V+ (for example) which comes from the other connector?

The 6 general purpose outputs on the 7I97T are identical to the 7IA0 outputs.
That is: uncommitted polarized NMOS SSR outputs, all isolated from each other.

 

Ah sorry I mixed it up with the outputs from the 7i84u card. At first I wanted to buy two of them but I saw in the manual that TB1 PINs 1-4 are responsable to feed the I/O on TB2 and TB3. I don't think I can switch off the outputs via E-Stop with this card. Besides that the 7iA0 is beefy with 2.5A and it has enough I/O so I only need one.