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You can verify if there is a voltage when the inverter is disconnected from the grid by
using a simple multimeter.
4.8. PV Connection
Before connecting to PV panels, install a separate DC circuit breaker between the
inverter and PV modules. In addition, we request users install PV junction box with
surge protection to protect the system from lightning strike.
In order to reduce risk of injury, please use the recommended cable sizes as shown
below:
Model Wire Size Cable (mm
2
)
8/10/12kW 12 AWG 4
To avoid any malfunction, do not connect any PV modules with possible current
leakage to the inverter. For example, grounded PV modules will cause current leakage
to the inverter.
4.8.1. PV Module Selection
When selecting the PV modules, you should consider the following parameters:
1) Open-Circuit Voltage (Voc) of PV modules does not exceed the maximum PV
array Voc.
2) Open-Circuit Voltage (Voc) of PV modules should be higher than minimum start
voltage of the inverter.
The grid power may still be present, but the inverter is not draining power from it
since the unit is working in ‘Island Mode’.
NOTICE
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