Powtran PI9000-S Series User Manual page 82

Chapter8.Installation and Spare Circuit
Set parameters:
F0.03 = 8 (PV settings));
E0.00 = 2 (MPPT mode);
E3.07 = 10 (run pause);
After setting the parameters, press the RUN key. When AI1 voltage is below 7V,
inverter runs; If the water tower above the high level detection point, the inverter
belongs to standby status. Until the water level is below the low water level detection
point(AI1 less than 3V), the frequency inverter automatically starts running.
（4）Pump under-load detection mode 1
After water pump out of well, frequency inverter determine whether to run the water
pump by setting a reference value.
F0.03 = 8 (PV settings));
F8.30 = 1 (off-load protection choose effective);
F8.31= d0.04 ÷ b0.03, suggests to subtract 0.05 to 0.1 based on the calculated
result.
F8.32 = (off overload detection time, suggests to set as 10s)
E0.00 = 2 (MPPT mode);
E0.10 = 6000 (set out interval detection time)
Assuming the b0.03 = 5.1A, when pumping, d0.04 displayed as 4A, F8.31=4÷5.1=0.78,
suggests to subtract by 0.05 to 0.1. F8.31 should be set between 68.4% - 73.4% ( F8.31
is set according to the actual situation). When setting F8.31 = 68.4%, current is less than
3.48, the delay time F8.32 is set to 60 (suggests to subtract setting time by 1Min ~ 3Min,
set according to the actual situation), the inverter will free stop. E0.10 set out interval
contained detectable, the frequency inverter runs automatically set off again into the
detection status. If the pool is still no water detected, the frequency inverter will free
stop again.
（5）Pump under-load detection mode 2
After water pump out of the well, the inverter will shut down automatically.
Install level detection switch at a low water and the test line lead to DI terminal. DI
terminal function selection is set to free stop and start forward. When the water level
falls below the low level detection point, DI2 signal is active and the frequency
inverter will free stop. When the water level is higher than the starting value detected,
the frequency inverter starts automatically.
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