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30 Operation basics and hardware description
Optional accessories
Type designation
SREA-50
PVS-APK-F
PVS-APK-M
Connections and control interfaces
See the
Connection diagram
DC input connectors
The inverter has four pairs of DC+ and DC- connectors to attach up to four separate
strings of solar panels. Each string is connected to one pair of DC connectors.
Correct polarity is assured by using different connector types for DC+ and DC-.
AC connector
The inverter has a single AC connector. AC current power flows to and from the
inverter through this connector.
Relay output terminal X1
The inverter has one potential free relay output terminal. The inverter software
includes pre-programmed functions from which the user can select the most suitable
for the system. The relay output can indicate the inverter's grid connection or fault
status, or it can be used to control building load circuits based on the inverter's
current output power level.
Remote control unit terminal X2
The remote control unit terminal is used together with accessory kit PVS-APK-F.
I2I link terminal X3
The I2I link terminal is used to establish communication between three PVS300
inverters, each feeding into separate phases.
This communication is the basis for 3-phase monitoring function and enables 3-
phase solar generator connection to the grid.
Remote monitoring terminal X4
The remote monitoring terminal is used to establish connection to the Remote
monitoring adapter SREA-50.
Description
Remote monitoring adapter with data logger, Ethernet port and
integrated Web-browser based graphical user interface.
Fixed control unit wall mounting kit including flush and surface
mounting frames and cabling adapters.
Mobile control unit mounting kit including communication
transceivers, power source and table stand.
on page 50.
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