4
Trial run
Maintenance and replacement
Before connecting the DC input of the inverter, make sure that the positive and
negative polarity of the solar panel is correct, and the positive and negative polarity
cannot be connected.
Cables used in PV power generation systems must be firmly connected, well insulated
and with appropriate specifications
When the AC side of the inverter is loaded, do not disconnect the DC connection. Before
disconnecting the DC connection, disconnect the dual power supply of the inverter and verify
that no voltage exists.
Do not open the inverter shell when the inverter is working or live. Complete and closed
cabinet casing to protect personnel and property safety.
When the inverter is running, only LCD display and DC switch can be touched, equipment
heating components (such as: radiator) can not be touched!
Before any repairs, disconnect the inverter from the electrical grid, and then disconnect
the DC side electrical connection.
Wait at least 10 minutes until the internal energy storage element is discharged before
starting repair work.
Use a multimeter to ensure that there is no internal voltage or current.
Prevent unnecessary personnel from entering the maintenance site. Temporary warning
signs or fences should be placed to warn or isolate non-operational maintenance personnel
from access to electrical connections or maintenance areas.
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