51
●
Ensure that the inverter is connected correctly to the AC motor.
●
Ensure that the polarity of PV arrays is correct.
●
Ensure that the AC Input R
、
T and GND is correct.
●
Check whether the system pipeline is unobstructed or not.
●
Switch on the DC-side circuit breakers.
After finishing the above steps, then begin initialization.
According to the pump motor rated current value on the nameplate, setting inverter
overload protection value, the method is: modify the “Imotor” value equal to 1.2 times of
the motor rated current, the details please refer to chapter
"8.3.2.3 DSP Parameter
Settings"
"
8.3.4 parameters
" settings.
After finishing the above steps, machine shall start operation after long-time
pressing the
“ON/OFF”
key for 3s; check if the Solar pump system works
properly or realize suitable head of delivery and flow. Press
“ON/OFF”
and
stop the inverter. Disconnect the DC side input of the PV array, connect the AC
input side power supply, and repeat the above operations.
Note
！
The inverter has four working modes, which are factory default as "0" :
When the debugging mode is "0", it means that the inverter is in the economic
mode. When the photovoltaic power is lower than the grid access power, the grid
is connected to ensure the full load operation of the inverter. When the
photovoltaic power is greater than the grid exit power point, the grid gradually
exits until it completely exits.
When the debugging mode is "1", it means that the inverter is in the reliable
mode. When the photovoltaic power becomes weak and cannot maintain the full
power operation of the inverter, the power grid is connected to keep the inverter
running at full power.When the photovoltaic power can maintain the inverter
