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11. Remote ON/OFF
This section of the menu allows you to enable/disable the connection/
disconnection of the inverter to/from the grid through the relevant control
signal (R+).
• Disable: the connection/disconnection of the inverter to/from the grid is
dictated by the input (voltage from the photovoltaic generator) and output
(grid voltage) parameters of the inverter.
• Enable: the connection/disconnection of the inverter to/from the grid is
dictated by the state of the "R+" signal compared to the R- signal, as well
as by the input (voltage from the photovoltaic generator) and output (grid
voltage) parameters of the inverter.
12. UV Prot. Time
This section of the menu allows you to set the time for which the inverter
stays connected to the grid after the input voltage has dropped below the
Under Voltage limit (set at 70% of Vstart). FIMER sets the time at 60 sec.
The user can set it at any time from 1 to 3600 sec.
Example: with UV Prot. Time set at 60 seconds, if voltage Vin drops be-
low 70% of Vstart at 9:00, the inverter stays connected to the grid (taking
power from it) until 9:01.
13. MPPT
This section of the menu allows you to set the parameters of the maxi-
mum power point tracking (MPPT) function. This function is useful when
there are areas of shade on the PV generator, which may create several
points of maximum power on the operating curve.
• MPPT Amplitude: by setting this parameter you can choose the ampli-
tude of the DC perturbation introduced to establish the optimal operating
point. There are 3 settings to choose from (LOW, MEDIUM, HIGH). The
default setting is MEDIUM.
• Multi-max scan: by setting this parameter, you can enable/disable the
scan, decide the frequency with which the scan is carried out and over-
ride it manually.
- Enable/Disable: Enables/disables the scan for identifying the maxi-
mum power point of the system.
- Scan Interval: this allows you to set the time between scans. It should
be borne in mind that the shorter the scan interval the greater the loss
of production, due to the fact that energy is transferred to the grid during
the scan but not at the maximum power point. Each scan takes roughly
2 seconds.
7 - Operation
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