First of all I don’t use Google Adsense so I would not be violating their terms and if I was as far I know “rotator” is not mentioned explicitly in policies and ToS .
Second I asked because your plugin has different slots for ads which implies that their is some kind or rotation on them . I work with 3 companies that require me to display their ads for 60 seconds each so I wanted to refresh the ad every 60 seconds.