Parameter debugging case:

Case 1: Constant pressure water supply parameters suitable for drip irrigation

A0-01=1 (P-type machine) A0-04=1 (terminal control) A0-06=6 (frequency source PID given) A0-23=15~25 (acceleration time) A0-24=15~25 (deceleration time) A7-42=0 (ineffective start protection) A1-01=motor power AA-01=pressure AA-03=0 (AI1) or 1 (AI2) AA-06=50 (PID proportional gain) AA-07=0.5 (PID integration time)

Case 2: Suitable for daily constant pressure water supply with sleep parameters (debugging takes two steps)

1: Conventional PID constant pressure water supply parameters

A0-01=1 (P-type machine) A0-04=1 (terminal control) A0-06=6 (frequency source PID given) A0-23=15~25 (acceleration time) A0-24=15~25 (deceleration time) A7-42=0 (ineffective start protection) A1-01=motor power AA-01=pressure AA-03=0 (AI1) or 1 (AI2) AA-06=50 (PID proportional gain) AA-07=0.5 (PID integration time)

2: Constant pressure water supply sleep parameters (if sleep is required, set the regular PID parameters first, and then set the following parameters)

E6-00=2 (sleep controlled by PID setpoint and feedback value) E6-01=sleep frequency E6-02=30 (sleep delay) E6-03=sleep wake-up difference AA-29=1 (calculated when PID is stopped)

3: PID disconnection detection parameters (if not required, can be omitted)

AA-13=PID disconnection detection value AA-14=PID disconnection detection delay time

explain:

1) AA-01 is the set pressure, which is obtained by dividing the required pressure by the maximum pressure on the pressure gauge and multiplying by 100%;

2) AA-03 is the PID feedback source, which is the wiring terminal of the pressure gauge. If connected to the AI1 terminal, it is set to 0; If connected to the AI2 terminal, set it to 1 (if connected to the AI2 terminal is a 4-20 mA current signal, set A5-21 to 2.0 and jump the AI2 jumper switch to the right side current mode "I");

3) E6-01 is the lower limit frequency that needs to be set during sleep mode. When setting the sleep function, first set the regular PID parameters, then start the frequency converter. After the water pressure reaches the set value, without using water, see how much Hz the frequency of the frequency converter can drop to. E6-01 should be set 2-5 Hz higher than this minimum frequency;

4) E6-03 is the wake-up difference after sleep, which is calculated by subtracting the wake-up pressure from the sleep pressure, dividing by the maximum range of the pressure gauge, and multiplying by 100%;

5) E6-00 sleep mode selection 2: Sleep is controlled by PID set value and feedback value. At this time, AA-29 needs to be set to 1: Calculate when PID stops, otherwise it may not be able to wake up according to PID feedback value after sleep.