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a) Adjust the orientation of photovoltaic array.
b) Check if the output currents of all groups of photovoltaic array are consistent and
remove the connection faults.
7.5 The water pump is operated but the operation frequency is too small or the water
yield is less or even unavailable.
Phenomenon:
After this Inverter starts the output, the water pump can be operated but the output
frequency, sunlight and components are less than the preset one. The water yield is
less or even unavailable.
Cause:
a) The photovoltaic battery array does not point to the sun and the output power of it
is insufficient.
b) Fault happens to the connection of photovoltaic battery array, one or several
groups of photovoltaic battery array have no output and the output power of
photovoltaic battery array is insufficient.
Check focus and countermeasures:
a) Adjust the orientation of photovoltaic battery array.
b) Check if the output currents of all groups of photovoltaic battery array are
consistent and remove the connection faults.
7.6 This Inverter can be started but the water pump does not operate.
Phenomenon:
This Inverter can be displayed normally.
Cause:
a) This Inverter has no output.
b) Water pump is damaged or fault happens to the output line.
Check focus and countermeasures:
a) Shut it down and cut off the input power of this Inverter, dismantle the line of water
pump, turn on this Inverter again and check if the output of this Inverter is normal.
