Savings plus FD

I have been trying to understand auto sweep with savings.
Spent considerable time. However still require guidance. Pls advise

  • So say based on threshold limit (say 20,000) any excess money in savings (in multiples say 1000) is moved into
    FD. Say 20000 was moved.

Now say after a week due to low balance in savings 6000 was sweeped out from FD
Again after three weeks 9000 was sweedped out from FD

So have I earned anything on FD for 6000 and 9000?
Are there any penalty?
What extra did I gain?

  • Pls highlight cros pons practically experienced