Oh yeah that is way too low for the ultimaker.
That temp is a general "this is what PLA melts at" so if you took plastic, heated it up to that temp it would melt.
However, you don't heat all the plastic at once. Your hotend it at that temp and if you let it sit it would heat up (fairly quickly). Printers like the ultimaker are fast, and well designed. They have a very small heat melt zone. So the plastic only has a fraction of time to heat up.
Solution? Higher temps!
(do not do this example. Not liable if you hurt yourself) You know how you can take a lighter and almost slowly wave your finger thought it without getting burned? You know if you let it stay even a full second you would regret it. Same thing here. It is going too fast to heat up.