Why are there different starter limitations for dry cranking and manual start on the A320?
Per the Airbus maintenance training manual, the crank limit whether it's dry (CRANK) or wet (IGN/START + MAN START) is 2 minutes.

An ECAM warning will notify of exceeding the limit: ENG 1 (2) START FAULT (condition: starter time exceeded).





This video shows the cranking of an A320 jet engine as a test after changing the IDG filter.