Power Line Communication (Plc) Transmitter - Fronius Primo GEN24 208-240 Operating Instructions Manual

In case a string-level shutdown equipment at the PV array is used in combination
with the inverter, this labeling has to be used acording to NEC (Section 690.12),
CEC (Section 64-218):
Warning - The installer is responsible for the correct labeling of the PV system.
The rapid shutdown requirement of the inverter is not affected by the FRT (fault
ride through) capability, so the inverter is „Grid support interactive compatible".
Warning - This photovoltaic rapid shutdown equipment (PVRSE) does not per-
form all of the functions of a complete photovoltaic rapid shutdown system
(PVRSS). This PVRSE must be installed with other equipment to from a com-
plete PVRSS that meets the requirements of NEC (NFPA 70) section 690.12 for
controlled conductors outside the array. Other equipment installed in or on this
PV system may adversly affect the operation of the PVRSS. It is the responsibil-
ity of the installer to ensure that the completed PV system meets the rapid shut-
down functional requirements. This equipment must be installed according to
the manufacturer´s installation instructions.
Self-test
A self-test of the RSD function can be performed manually or automatically. The
automatic self-test relates only to the discharge circuit of the RSD function. All
other RSD circuit components are produced so as to be fail-safe.
Sequence of automatic self-test:
In each startup procedure—prior to connection to the public grid—when there is
sufficient DC voltage (40 V) the discharge circuit is activated for 10 ms and the
feedback pin is checked prior to and during charging.
Sequence of manual self-test:
A manual self-test can be triggered by an interruption in the grid connection
(e.g., AC breaker) or by the WSD trigger device (see also
on page 21).
The discharge must be measured and checked using a multimeter.
Power Line Com- The inverter is equipped with a Power Line Communication (PLC) transmitter on
munication the DC side.
(PLC) transmit- Its function is to ensure rapid shutdown in accordance with US safety standard
ter NEC 2023 Art. 690.12. The PLC is implemented according to the specification
"Communication Signal for Rapid Shutdown – SunSpec Interoperability Spe-
cification". Please visit www.sunspec.org for details.
20
SOLAR PV SYSTEM EQUIPPED
WITH RAPID SHUTDOWN
SOLAR PV SYSTEM IS EQUIPPED
WITH RAPID SHUTDOWN.
TURN RAPID SHUTDOWN SWITCH TO
THE „OFF" POSITION TO SHUT DOWN
CONDUCTORS OUTSIDE THE ARRAY.
CONDUCTORS IN ARRAY REMAIN
ENERGIZED IN SUNLIGHT.
SOLAR ELECTRIC
PV PANELS
WSD (wired shutdown)