AH500 Programming Manual Dependent Formula & Derivative of PV （ PID_EQ =True & PID_DE =True ） ※ The CV values in the formulas above are the MV used in DPIDE. 2. When PID_MODE is set 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 becomes the automatic control mode. PID control diagrams: PID Block Diagram (Independent) PID_DIR E SV + - + 1 DEAD BAND PV REVERSE X(-1) 0 ERR_DBW Kc_Kp >0 BIAS PID_MAN + + + Kc_Kp 0 0 Ti_Ki 1 MV >0 MV_MAX, MV_MIN 0 + + + Ti_Ki + MOUT_AUTO MOUT 0 Td_Kd MOUT PID_MAN >0 1 0 Td_Kd, Tf 0 1 MOUT 6-190 PID-P MV LIMIT _ PID-I PID-D