I have a benchtop power supply (it's not in front of me right now, so I can't say the model, sorry) and it has a current limiting mode enabling it to operate as a current source. However, it also has an "over-voltage" and "over-current" protection mode (OVP and OCP, respectively). Once either OVP or OCP trip, the supply stops providing any power.
My question is: why do those protection modes exist if I can just set the limits on current and voltage myself? Presumably, if I know what to set the protection modes to I'll know what to set the limits to, so what's the point?