DVP-ES3 Series Programming Manual The PID algorithm: 1. When you set PID_MODE to 0, the PID control mode is the automatic control mode.
Independent Formula & Derivative of E （ PID_EQ =False & PID_DE =False ） BIAS dt dE K dt E Ki E K MV d t P + + + = ∫ * 0 E = SV – PV or E = PV – SV Independent Formula & Derivative of PV （ PID_EQ=False & PID_DE=True ） BIAS dt dPV K dt E Ki E K MV d P + − + = ∫ * t E = SV – PV 0 Or t BIAS dt dPV K dt E Ki E K MV d P + + + = ∫ * E =PV – SV 0 Dependent Formula & Derivative of E （ PID_EQ =True & PID_DE =False ） BIAS dt dE T dt E T E K MV d + + = ∫ * 1 i c + t E = SV – PV or E = PV – SV 0 _6 Dependent Formula & Derivative of PV （ PID_EQ =True & PID_DE =True ） BIAS dt dE T dt E T E K MV d − + = ∫ * 1 i c + t E = SV – PV 0 Or BIAS dt dE T dt E T E K MV d + + = ∫ * 1 t i c + 0 E = PV – SV 2.
When you set PID_MODE to 1, the PID control mode is the automatic tuning mode. After the tuning of the parameter is complete, PID_MODE is set to 0. The PID control mode then becomes the automatic control mode. 6-208