User Manual
9
3. Operation mode illustration of the inverter
Our inverter has five operation modes during the whole work process; they are
wait, check, normal, fault and flash modes. Its detail illustration is shown by
Figure 3-1 below.
Shut Down
Wait Mode
Fault Mode
Flash Mode
Normal Mode
Check Mode
Default:
Unrecoverable
Fault
Flash Event
Satisfy the power on condition
Have warning code
Flash Event
Flash Event
Flash Event
Check no errors
Have Fault event
Have warning events
or power off cmd
Have Fault event
Have Fault event
Recoberable fault cleared in
5s
Vpv<150Vdc
Vpv
<
150
Vdc
Figure 3-1 State Machine of Inverter working mode
3.1. Wait mode
When the input power by solar panel is not enough to let the power module work,
it is at waiting mode. The inverter will wait until the input voltage is above
210Vdc and below 910Vdc, it turn to check mode.
3.2. Check mode
When the inverter is power on, it will check isolation, HCT device, GFCI device,
relay, fan, and soft start automatically in order. This can guarantee the inverter
work normally and turn to normal operation mode.
3.3. Normal mode
When the conditions above are satisfied, inverter will let the BOOST and inverter
module work and turn to normal generating power mode. It will change the solar
energy into electrical energy and fed it into grid based on advanced MPPT
technology in order to absorb solar energy in maximum extent possible. It will also
