Graziano wrote:
Ravens Fan wrote:
What you show won't work at all.
Hi All!
I'm wondering why... Actually, NI RECOMMENDS to wire Positive voltage to Vsup, but also the scheme with Vsup unwired should work, looking at the internal diagram. The Vout terminal should only switch, from closed to open, on COM terminal. Since COM is wired, it shouldn't matter if Vsup is or not! I'm trying to understand...
On the other hand, I don't know if it'll be good practice to wire a modulatedVoltage to Vsup terminal, form diagram you see a pure DC alim connected to Vsup...
graziano
When I wrote that, I believe I was thinking of a sourcing digital output rather than a sinking digital output. So I was looking at it as a +24 V source on Vout being connect to the bult across from another Voltage source. If anything, I would say that calling the Vout terminal by that name is a bit misleading, that it really should be called Vin considering it is a sinking terminal. So now I can't figure out why it wouldn't work like you have it shown. Perhaps having Vsup wired up as well will help establish the approriate voltage levels for the transistor circuitry????
Have you tried connecting it as they have shown in the manual and see if your system behaves any differently?
