4-303
Output frequency (Fout) reaches the lower limit frequency (00-13) and Fout time is over than the
duration of lower limit frequency (24-04). Then Relay 1 and Relay 2 is power off
Relay 1 is power on and the inverter starts to decelerate after the switching time of MC (24-05) ends.
Figure 4.4.123 Diagram of decreasing pump in the fixed modes of inverter pump
T1 = 24-04 Duration of Lower Limit Frequency
T2 = 24-05 Switching Time of Magnetic
Contactor (MC)
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