Mesa 7i95 Output wiring

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4 years 5 months ago #242877 by M_tz3
Hello Guys :)

I have bought a 7i95 Mesa Card for retrofitting my CNC-Mill. 
I had to buy this card, because all other cards are not in stock.
I read the manual and wired the inputs for some tests in LinuxCNC. This worked great.
Now I want to wire the Outputs, but I am not sure how to do this. In manual they were described as Out0- and Out0+.
Could you please explain me, how to connect this outputs? I don't want to damage the card, because it was the last one in the shop :D.

Thank You
Kind Regards
Matthias
 

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4 years 5 months ago #242879 by robertspark
Replied by robertspark on topic Mesa 7i95 Output wiring
they are isolated outputs.

basically, think of them like a switch... you wire either the + or - to the load and depending if the + is wired to the load the - would go to zero V

or in the - is wired to the load, the + would be wired to the positive voltage (uo to 36v)

each output is independent so they can each be wired differently.

 

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4 years 5 months ago #242885 by M_tz3
Replied by M_tz3 on topic Mesa 7i95 Output wiring
Thank you for your fast answer :)
Can they switch up to 36V or they can only switch 5V?

Thank you

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4 years 5 months ago #242887 by robertspark
Replied by robertspark on topic Mesa 7i95 Output wiring
www.mesanet.com/pdf/parallel/7i95man.pdf

PDF page 6 of the discription:
Six 36V 2A isolated outputs allow sinking, sourcing
combinations of both


PDF Page 42:
ISOLATED OUTPUTS
OUTPUT SWITCHED VOLTAGE 0V +36V
OUTPUT SWITCHED CURRENT ---- 2A
OUTPUT RESISTANCE ---- 75 mOhm
OUTPUT ISOLATION VOLTAGE ---- 100 VDC
MAXIMUM OUTPUT FREQUENCY ---- 5 KHz

mesa manuals are very comprehensive (sometimes it takes a while to digest + understand how much info is provided).

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4 years 5 months ago #242889 by M_tz3
Replied by M_tz3 on topic Mesa 7i95 Output wiring
Thank you, with your help now I found it in the manual :)

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