Signal Conditioning

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No power in new SC-2345, PWR01 (powered from PXI-6221)

I've used several systems in the past that included an SC-2345 box powered from a PXI card, and until now have not had problems.

 

I have an SC-2345 (PWR01, rear-connect) connected to a PXI-6221, all brand new, and the SC-2345 does not seem to be getting any power.  The indicator LED's on the front do not light, and if I look at terminal 14 on the screw terminal block, I don't see the +5V I expect.  If I unplug the 68-pin cable at the SC-2345 and look at the pins directly, I do see +5V on pin 14.  All the pins on the cable appear in good condition, and the cable seats firmly when plugged in.

 

I can run a self-test on PXI-6221 from MAX, and it passes.  I've removed all cartridges from the box and looked for obvious shorts, but the problem persists.  There _may_ have been a short when the box was first connected -- a few leads from the front panelettes were disconnected and unrestrained.  Supposing this caused a short, are there fuses in the box that I can check / replace?

 

I have spare SC-2345's, but it's a little difficult to get them to this particular site -- are there any suggestions for things to check before just trying a different SC-2345?

 

Thank you!

-Eric

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Hi Eric

 

Did you set the switch S1 on the SCC-PWR01 to select the source of the +5 V E SER (E/M Series) or EXT (external). If you select EXT, you must connect a +5 V supply (user supplied) to the screw terminals of J1 on the SCC-PWR01. For more information here is the link of the manual

 

http://forums.ni.com/t5/Signal-Conditioning/No-power-in-new-SC-2345-PWR01-powered-from-PXI-6221/m-p/...

 

Regards

 

Esteban R.

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