CAUTION!
Danger from faulty or incorrect DC installation.
This may result in a risk of damage and, as a consequence, risk of fire in the PV
system due to prohibited thermal loads that occur during an arc.
▶
Check the plug connections to ensure that they are correct.
▶
Repair faulty insulation correctly.
▶
Perform connection work in line with the instructions.
IMPORTANT!
Fronius will not bear any costs for production downtimes, installation costs, etc.,
which may arise due to a detected electric arc and its consequences. Fronius ac-
cepts no liability for damage which may occur despite the integrated Arc Fault
Circuit Interrupter/interruption (e.g., due to a parallel arc).
IMPORTANT!
Active PV module electronics (e.g., power optimizers) can impair the function of
the Arc Fault Circuit Interrupter. Fronius cannot guarantee the correct function
of the Arc Fault Circuit Interrupter in combination with active PV module elec-
tronics.
Reconnection behavior
Grid power feed operation is interrupted for at least 5 minutes after an arc has
been detected. Depending on the configuration, grid power feed operation is
then automatically resumed. If several arcs are detected within a period of 24
hours, grid power feed operation can also be permanently interrupted until a
manual reconnection has been performed.
Standby state If one of the following safety devices is triggered, the inverter switches to the
standby state:
-
Rapid shutdown
-
WSD
-
RCMU
-
Insulation monitoring
-
AFCI
In the standby state, the inverter no longer feeds in and is disconnected from the
grid by the opening of the AC relay.
Surge protection
device
The inverter is equipped with an integrated surge protection device according to
UL1741 3rd Edition, CSA-C22.2 No.107.1-16 on the DC (Category II) and AC
(Category IV) side. The surge protection device protects the system against dam-
age caused by overvoltage.
If the integrated surge protection devices become damaged due to prolonged
overvoltage exposure, the damage may not be covered under the terms of war-
ranty. See warranty terms for more information.
22
To Next Page
Loading...
