Chapter 4 Installation and commissioning
20
Ch
ap
ter
4
E3.02 = 3 (three-wire operation control);
E3.05 = 00100;
E0.00 = 2 (MPPT mode);
After setting the parameters, press the RUN key, Solar inverter runs. If water reaches the high
lever detection point, the Solar inverter will free stop. When the water level falls below the low
level detection point, the Solar inverter automatically starts running.
(3) Water level detection mode 2- Analog detection.
When using analog detection
，
Connect the detection cable to the AI terminal. according to the
wiring diagram. Water-filled test point voltage is 7V. When AI1 detects 7V voltage, the Solar
inverter will free stop. When AI1 detects voltage is lower than 3V , the Solar inverter automatically
starts running.
High level detection
points
（
7V
）
+10V
GND
AI1
Low level detection
points
3V
GND
+10V
Solar
inverter
Water
tower
Figure 4-5
Set parameters:
F0.03=8(PV setting)
；
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 Solar inverter
automatically starts running.
(4) Pump under-load detection mode 1
The water pump under load test is mainly for the water in the well is drained, Solar inverter
determine whether to run the water pump by setting a reference value.F0.03=8(PV setting)
；
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 60s)
E0.00=2(MPPT mode)
；
E0.10=300s(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%
( F8.31is 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 Solar inverter runs automatically set off again into the detection status. If the pool is
still no water detected, the Solar 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 Solar inverter will free stop. When the water level
is higher than the starting value detected,the Solar inverter starts automatically.
Summary of Contents for PI500-S 004G1
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