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5. OPERATING YOUR PV-INVERTER
MODES OF OPERATION
There are 3 different modes of operation.
1. Normal mode: In this mode, Protect PV works normally. Whenever
the supplied power from PV panel is sufcient (voltage>150VDC),
Protect PV converts power to the grid as generated by the PV panel.
If the power is insufficient, (voltage<120VDC) Protect PV enters a
“waiting” state. Whilst “waiting” Protect PV uses just enough power
from the PV panel monitor internal system status. In normal mode
the green LED is on.
2. Fault mode: The internal intelligent controller can continuously
monitor and adjust the system status. If Protect PV finds any unex-
pected conditions such as grid problems or internal failure, it will
display the information on its LCD and light up the red “Fault” LED.
3. Shutdown mode: During periods of little or no sunlight, Protect PV
automatically stops running. In this mode, Protect PV does not take
any power from the grid. The display and LED’s on the front panel
do not work.
FRONT PANEL
Operating Protect PV is quite easy. During normal operation, Protect
PV runs automatically. However, to achieve maximum conversion
efficiency of Protect PV please read the following information:
1. Automatic ON-OFF: Protect PV starts up automatically when
DC-power from the PV panel is sufficient. Once the PV-Inverter starts
it enters one of the following 3 states:
• Standby: The PV string can only provide just enough voltage
to minimum requirements of the controller.
• Waiting: When the PV string DC voltage is greater than 100V,
Protect PV enters a “waiting” state and attempts to connect to the
grid.