54
7 Commissioning
7.1 Verify before Commissioning
PV Arrays
The PV array should be checked before operating the inverter, and to ensure
that the positive and negative mustn’t be misconnect, otherwise, the dam age
may be caused to the inverter. Make sure that the open -circuit voltage of PV
array doesn’t exceed the required voltage.
DC Input
Make sure that the DC terminals of the inverter are connected correctly and
maintained consistent with the PV array.
AC Input/Output
For single-phase AC input inverter, please ensure that the AC input cable is
properly connected to the L and N of the AC access terminal, and do not
connect the cable to the PE pin. Ensure that the output end of the inverter is
connected correctly, check whether the AC is connected correctly, and the
protection ground of the system is connected correctly.
Verify of the water pump motor parameters
Check the electrical parameters on water pump motor nameplate: the rated
input voltage and input curre nt frequency, to ensure inverter is matched with
the pump.
7.2 Inverter Commissioning
Choose suitable weather, with enough sunshine, and make sure the normal
operation of your Solar pump system. Try to ensure that inverter work under
high output power, high output frequency as much as possible. Please make
sure the following condition before commissioning.
