4-300
The following examples are for the actions of increasing / decreasing pumps in the fixed modes of inverter
pump. Relay 1~Relay 4 in 1 to 8 pump card is set to be enabled. Motor 1 is connected to inverter and
motor 2~4 are connected to AC power supply. MC of AC power supply is mainly controlled by the external
circuit control. Refer to Fig. 4.4.126.
When 24-00=1, 24-06=0 and depending on the above PID setting, the following status occurs.
Output frequency (Fout) reaches the upper limit frequency (00-12) and Fout time is over than the
duration of upper limit frequency (24-03). Then Relay 2 is power on and the connected motor starts
to accelerate.
Figure 4.4.120 Diagram of increasing pump in the fixed modes of inverter pump
T1 = 24-03 Duration of
U
er Limit Fre
uenc
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