Installation
and
Operation
Manual
10
5. System Operation
5.1 System Mode
The operation modes of KSG-32K grid-connected type inverter
include the initialization, waiting, self-checking, grid-connected
operating and error modes.
﹡
Initialization mode: the internal data will be initialized upon
power on of controller.
﹡
Waiting mode: the inverter will be under waiting mode if the
output voltage of PV battery board is low and it has not detected
any fault.
﹡
Self-checking mode: self-checking will be conducted by inverter
each time prior to grid-connected operation. The inspection items
include: inspection on insulation impedance at DC side, self-
checking for leakage current detection function and inspection on
AC output relay.
﹡
Grid-connected operating mode: the direct current of PV battery
board is converted to alternating current by the inverter for grid-
connected operation. The advanced MPPT algorithm is adopted for
controller, making the inverter operating at the maximum power
point of PV arrays.
﹡
Error mode: the inverter will enter error mode when grid voltage/
frequency is abnormal or fault arises during grid-connected
process. At this time, it will stop transformation of electric energy
and cut away from the grid.
