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3.10.5 DRM0 functionality (AS/NZS 4777.2 standard).
This command can be used to DRM0 functionalities via an external command by means the Digital input and RS485 connector
(12)
.
The functionality must be enabled in the integrated web user interface.
The AS/NZS 4777.2 standard contains requirements related to grid stability and remote system control by the utility.
One of these requirements is demand response mode for zero export (DRM 0), which reduces export to grid to zero upon command from
the utility.
This is done by connecting an external Demand Response Enabling Device (FIMER DRM0 Interface) to the inverter digital input.
3.10.6 Reactive power production
This inverter is able to produce reactive power and can feed this power into the grid via the power factor setting.
Power feeding modes may vary according to the country of installation and the local grid companies.
3.10.7 Active power limitation
This inverter is able to limit the amount of active power fed into the grid to a desired and adjustable value.
3.10.8 Overvoltage surge arrester monitoring
The inverter monitors the status of the overvoltage surge arresters and generates an alert in the event of a fault (viewable via monitoring
system, web user interface or FIMER Installer for Solar Inverters APP).
3.10.9 PID recovery functionality
PID recovery functionality is provided only for dedicated inverter models (;APD suffix).
This functionality is based on a recovery method and can effectively prevent the build-up of any PID (Potential Induced Degradation)
phenomena for solar panels and associated efficiency degradation.
3.10.10 Data transmission and control
Embedded multi communication interfaces (WLAN, Ethernet, RS485) combined with a Sunspec compliant Modbus protocol (RTU/TCP)
allow the inverter to be easily integrated with any third party monitoring and control systems that support the same Sunspec standard.
NOTE –
D
The Modbus RTU/TCP register map is the same for all communication interfaces (Ethernet, RS-485 and Wi-Fi
communication) of the inverter.
NOTE –
D
Please consult (and download) the product documentation by visiting
3.11 Communication interfaces
The integrated Ethernet and Wi-Fi board allows the local or remote connection to the inverter.
The inverter provide the following integrated communication interfaces:
3.11.1 Wi-Fi (IEEE 802.11 b/g/[email protected])
The use of Wi-Fi channel is recommended to access to the integrated Web User Interface by using any WLAN standard device (PC, tablet.
smartphone) for commissioning and setting parameters. Additionally a second radio channel is available and can be used for connection
to a Wi-Fi router.
3.11.2 RS-485
The RS-485 port enables daisy chain connection of the inverters over the serial line (slave mode). The port can either be used for
connecting supported accessories (like weather station, meter...): in this case data from accessories will be logged and transferred to the
cloud by inverter itself (master mode).
3.11.3 Ethernet
• By default the two Ethernet ports
(11)
of the inverters are already configured for enabling communication over daisy chain layout.
Once the inverter is physically connected does not need specific settings; after the first turning on, the inverter automatically got all
needed network parameters with or without the presence of a DHCP server.
If an internet connection is available on site, the inverters will be automatically configured to transmit telemetry data to Aurora Vision
Cloud without the need of installing any additional device (logging capability are already integrated into the inverter by default).
NOTE –
D
Aurora Vision
®
is the FIMER cloud solution allowing customer to remotely monitor and manage its own solar plants. Please
refer to
or contact FIMER technical support for further information on how getting an Aurora Vision account.
With the inverters connected over Ethernet daisy chain and with an available internet connection it will be always possible, via Aurora
Vision Cloud, to upgrade remotely the firmware of the inverters.
NOTE –
D
Please refer to
“Connection of the communication and digital signals”
paragraph for further information about the
installation.
