User Manual of A90 Series Inverter When the simple PLC is running, the operating frequency, operating direction, acceleration/deceleration time and operating time in the entire segment can be set separately. This is described below with the 13 th segment (the last segment) as an example. The specific operation is shown in Fig. 7. F08.12=50.00 : the operating frequency of 13 th segment is 50.00Hz. F08.43=31 : the operating direction in the 13 th segment is reverse, and the acceleration and deceleration are controlled based on the acceleration and deceleration time 4 (F15.07/F15.08). F08.44=5.0 : the operating time in the 13 th segment is 5.0s (F08.18=0 by default).
7.10 PID Function Parameter Group of F09 Group The A90 series inverter has a process PID function, as described in this section. Process PID control is mainly for pressure control, flow control and temperature control. Kp Ref KpKi Out + + + + Ts Fdb KpKdTs d dt Fig. 7-26 Block Diagram of Process PID controlled by the system is fed back to the PID controller, and the output of the controller is adjusted after PID operation, thus forming one or more closed loops. This function is to PID control is a kind of closed-loop control. The output signal (Out) of the object make the output value (Out) of the object controlled by the system consistent with the set target value (Ref).
The specific block diagram is shown in Fig. 7-26. The PID controller is used for control by calculating the control quantity with three calculation factors, i.e. proportion (P), integral (I) and differential (D), according to the difference between the set target (Ref) and feedback signal (Fdb). The features of each 198 deceleration time 4 F08.48 Running time of the fifteenth segment 0.0 - 6000.0 s/min 5.0 ●