System Manual
10 MV Station Functions
67
Startup
This is the transient process between the
Initial
Standby
mode and the
Run
mode. Once
the
Startup
mode is complete, MV Station will start powering the grid.
Run
In this mode, MV Station converts the DC energy into AC energy and feeds it to the grid by
way of MPPT.
The MV Station
tracks the PV arrays‟ maximum power point (MPP) to maximize the output
energy.
Standby
In
Run
mode, MV Station will enter into the
Standby
mode if the DC side current is as low
as 0A for a while.
MV Station will continuously check if the PV array meets the grid-connection requirements.
If the MV Station DC startup voltage and the startup time are reached, MV Station will turn
into the
Run
mode.
Fault
If a fault occurs during operation, MV Station will enter into the
Fault
mode. LCD panel will
display the fault type with the “Fault” indicator on until the fault is removed and MV Station
turns into the
Run
mode.
During this period, if you want to start the MV Station manually, first confirm the stop clear
protection program from the LCD panel and then start the MV Station.
If the fault is unrecoverable, MV Station must be stopped to perform maintenance work. MV
Station will automatically check if the fault is recoverable.
When there is a DSP fault or MV Station fault, restart of the MV Station through the
LCD is strictly forbidden. A power-off check is required before reenergizing the
module. Otherwise, the MV Station may be damaged.
Emergency-stop
Stop the MV Station by pressing the emergency stop button inside the monitoring window
when a fault or emergency occurs.
The emergency stop button is used to disconnect the AC switch and the DC switch. To
release the emergency stop state, please remove the emergency stop instruction by the
special key.
Key-stop
In
Run
mode, MV Station will enter into the
Key-stop
mode by sending stop instruction via
the LCD panel if user needs to conduct maintenance or service work.
Alarm Run
In
Alarm
Run
mode, MV Station can keep running but send alarm signal. User can check
the present alarm information through the Working state on the LCD default screen or
check the latest 100 history alarm information through Function/History information/his
alarm. MV Station automatically turns to
Run
mode when the alarm is removed.
