Sungrow SG4950HV-MV, System Manual

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S Stta arrttu up p
This is the transient process between the IIn niittiia all S Stta an nd db byy mode and the R Ru un n mode.
Once the S Stta arrttu up p mode is complete, module will start powering the grid.
R Ru un n
In this mode, module converts the DC energy into AC energy and feeds it to the grid by
way of MPPT.
Module tracks the PV arrays’ maximum power point (MPP) to maximum the output
energy.
S Stta an nd db byy
In R Ru un n mode, module will enter into the S Stta an nd db byy mode if the DC side current is as low
as 0A for a while.
Module will continuously check if the PV array meets the grid-connection requirements.
If the module DC startup voltage and the startup time are reached, module will turn into
the R Ru un n mode.
F Fa au ulltt
If a fault occurs during operation, module will enter into the F Fa au ulltt mode. LCD panel will
display the fault type with the "Fault" indicator on until the fault is removed. After the
fault is removed, the MV Station reverts to R Ru un n mode.
During this period, if you want to start the module manually, first confirm the stop clear
protection program from the LCD panel and then start the module.
If the fault is unrecoverable, stop the MV Station and perform maintenance work.
Module will automatically check if the fault is recoverable.
When a DSP fault or a module fault occurs, never restart the MV Station through
the LCD. Perform a power-off check before reenergizing the MV Station.
Otherwise, the module may be damaged.
E Em me errg ge en nc cyy--sstto op p
Stop the module by pressing the emergency stop button inside the monitoring window
when a fault or emergency occurs.
If the module is stopped by the emergency stop button, the AC switches of the MV
Station trip off immediately and the modules will disconnect from the grid. To restart the
modules, release the emergency stop button, push the AC switches to the OFF position,
and then operate according to the normal start process.
K Ke eyy--sstto op p
When maintenance or service work is required, the MV Station turns from the R Ru un n
mode to the K Ke eyy--sstto op p mode after the user sends a stop instruction via the LCD panel.
10 Main Functions System Manual