Operation And Control; Initial Settings Before First Operation - DAYLIFF SUNVERTER 3 Installation & Operating Manual

4. OPERATION AND CONTROL

4.1 Initial Settings before First Operation

While implementing initial settings below, refer to section 4.6 on how to view and
modify parameters as well as section 4.7 for detailed parameter descriptions
Step
Initial Setting Content
Modify all control parameters as read-
1
write parameters.
Modify date and time
2
3 Modify Solar array parameter
4
Modify rated voltage of the pump
Modify the water level switch
5
settings
Modify the water level switch
6
settings
Modify the minimum operation
7
frequency
Operating Method
Modify Pr.0 value to 0.
Modify Pr.9~Pr.10 (hour, minute) according to local
time.
Note: Do not use the inverter without setting the
time else records will be incorrect. If the built-in
communication module is selected, the time
setting can be synchronized through the APP .
Modify Pr.2 parameter (open circuit voltage) according
to the solar array.
Note: Inverter may work without modifying
Pr.2, but will work better after modifying Pr.2
especially where array VOC is greater than
700V. Set Pr2 to 0.85 of rated VOC of array.
Modify Pr.3/4/5/13 value according to the rated
parameters of the pump.
If the water level switch is not required, this step can be
skipped else set according to description of Pr.15-Pr.18.
1. Modify Pr.7 value as 0, enable the frequency setting
from panel
2. Modify Pr.12 value as 30.00
3. Press RUN key and observe water yield from the outlet
4. Press STOP key and exchange any pair of pump cable
connections with the inverter
5. Press RUN key and observe water yield from the outlet
again
6. Press STOP key, select the wiring method with bigger
water yield to ensure the motor is rotating forwards.
1. Modify Pr.12 value as 20.00
2. Press RUN key
3. Observe if there's water flowing out of the outlet
4. If there is no water flowing out, press UP key slowly to
increase output frequency
5. When water starts flowing from the outlet, record the
start operation frequency f0.
6. Modify the Pr.14 value as f0 (weak light frequency).
Note: System can also work stably without
setting above steps, but will work better after
setting to appropriate value.
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