That does depend on how the model is constructed though. While simulators will give errors (such as "singular matrix") if you have floating nodes I wouldn't expect a floating transistor base to do that as leakages built into the device model will mean it isn't really floating. To answer you other question, the base connection is there so you can connect to it if your circuit demands it, but it shouldn't be a requirement.
If you know how to do that anyway then fine. I suggested a tutorial because that should explain the process of selecting the parts for simulation, associating models, creating new symbols and making sure the model pin order matches the symbols. I don't use Orcad/Pspice so cannot talk you through the process. The part you have used is out of the normal Orcad library for schematics/PCB layout I believe, so won't have a Spice model associated with it. The freqiecny is 60Hz and that means 1 cycle. We also need to add transient analysis to see the voltage levels at primary and secondary. olb files from the /orcad/library/pspice folders, these are the ones that have a pspice model library too, if you cant find 7805 there then you have to create your own component. how to measure voltage in pspice, 1 for this coefficient. You need to be able to associate models with schematic symbols for the simulations to work. olb files with schematic models that dont have any spice model associated with them. 5 Simulating With the Part Symbol Schematics are drawn, and PSpice simulations are run from within the capture program, the same program used to edit the library symbol above. The default model denition for an Rbreak is given by.model Rbreak RES R1 where Rbreak is the model name that can be changed and appears on the schematic, RES is the PSpice model type and R is a resistance multiplier. searchable library list for PSpice model libraries Online PSpice Reference Guide An online. Assigning available values with the Discrete engine 75 Finding components in your schematic editor 76 Printing results 76 Saving results 77. The program also prompts to save the part. breakout library, edit the model (rmb > Edit PSpice Model) and add tolerance statements to the PSpice model. Setting up the circuit in the schematic editor 44 Setting up Sensitivity in Advanced Analysis 44. You don't yet seem to have found out how to view models associated with parts. When the part symbol is correct, save the library. Have you solved that problem? If not, you are probably facing the same issues. There is no problem selecting it and placing it on the schematic. Within that library is a relay called G6A-DL-DPDT. I am not saying you are clueless (did I say that - I don't think so) but the problem you have sounds identical to your earlier one. One of the parts libraries in the level above pspice is called 'discrete.olb'.