The beauty of the Nord Stan is that most of what I wrote above is actually right in front of you as the synth is va architecture. The above are synthesiser patchcords for Emus and shows source and destination settings.
On the Nord, you already have lfos etc...
But I know where you're at, you're trying to actually create a bass sound from scratch.
Use a sine wave from one of the patches on the Nord or simply create a new patch and use a sine wave as one of the voices in the patch. Get that just right(too deep to go into here) and layer it with a saw wave, they're great for the deep raspy type of basses or for creating that slightly fuzzy attack. You can layer any number of waveforms, in fact I have often used 3 sine waves for one sub bass and pitched them at different octaves for fullness.
You then need to decide what the bass is meant to behave, do you want a quick snappy attack or a rolling mellow build etc...?
Using the ADSR on the Nord...Attack Decay Sustain Release you can shape the preset with regards to how quick an attack you want, or if you want a long release so when you let go the note hangs in the air.....Then you need to give the preset some body, use the oscs(oscillators) to give it some shape, say assigning osc1 to a sine and pitch at the same time, use the lfos(low fequency oscillators) to further shape the sound and then attack the filter section. The Nord has some decent filtering and you can even track the filter(chasing) which gives a far better expression than a static filter.
I dont want to bore you but the Nord is a 'hands on' instrument so play around with the knobs and understand what happens.
I do advise some synth theory and there are some great books out there, try SOS website and check out some of their books on syntheses. In fact most of the one-one tutorials I give is based on sound design and the balance on production.
Programming is great fun , you create your own custom sound sets and others will envy you
Best of luck.