Setting correct temperature is crucial for nice output and smooth operation of printer.
factors which can affect correct temperature are:
As a good “first shot” setting temperature to filament manufacturer prescribed value is not a bad idea. I ussualy start with values published by Prusa here , except highest temperature which i ussualy dont set extruder temperature above 260 °C cause of construction limitation of our reprap printers.
Feel free to vary temperature if first time you don't get ideal result, experimental data is crutial!
low bed temperature → model doesn't stick on bed, can be caused also by bad bed preparation or bad Z-axis calibration filament jamming (brushed from extruder drive) → can be caused by low temperature, but also by speed of printing or it could be caused by filament quality
Drevena - PLA - bed 55 °C, extruder - 190+ °C - used on transparent red and non-transparent black PLA, both with sucess, lower bed temperature may result into problems with adhesion of filament to bed.