Frequency changes when PID control toolkit is applied

[abc-123]

I have one problem on PID control appliecation. when I input one sinusoidal signal to the PID controlled system, the frequency of the output signal always 5 times faster than that of the input. I do not know why, and the frequency shouldn't be changed according to the dynamic control theories. The attachments are the programs and the pic

[Brian_Beal]

Duplicate Post. 

[abc-123]

Sorry for that, coz my problem hasn't been solved which is one urgent need!