Connecting The Wires To The Terminals; Connecting The Rapid Shutdown Box To An Inverter - Fronius Rapid Shutdown Box - Duo Instructions De Service

Connecting the
wires to the Ter-
minals
Connecting the Connection to the Inverter:
Rapid Shutdown If the AC supply to the inverter is interrupted, the inverter disconnects the PV DC supply
Box to an Inverter via the Rapid Shutdown Box. As soon as the AC supply is reinstated, the DC supply will
resume.
The signal relay in the Fronius inverter is designed to open when the inverter loses AC
power signaling the Rapid Shutdown Box to disconnect. However, the signal relay cannot
be used for further functions (Energy Manager, alarm, etc.), if the Rapid Shutdown is to be
initialized by means of an AC failure.
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A1
DC-Output
Duo / Quattro
Quattro
A2
Signal Port
Duo / Quattro
Duo