10-23-2012 12:43 PM
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
10-24-2012 07:26 PM
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
Regards
Esteban R.