Sungrow SG36CX-US, Руководство пользователя

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The communication module and the RS485 communication are not available at
the same time. Otherwise, communication failure or other problems will occur.
For details on module installation and configuration, refer to the manual
delivered with the module.
5.12 Module-Level Rapid Shutdown Device Connection (Optional)
5.12.1 Module-Level Rapid Shutdown System Introduction
The Module-Level Rapid Shutdown Devices (RSDs) aim to protect the whole PV system
from fire risk via reducing DC voltage to a safe range in a short time.
There is a Power Line Communication (PLC) transmitter inside the SUNGROW inverter,
certified with PVRSS, which could send or cease sending ‘keep alive’ signals to RSDs
or Smart PV Panels integrated with RSDs according to NEC 690.12 & CA22.2 NO. 330
regulations.
When the SUNGROW inverter is connected to the AC grid, the PLC transmitter receives
power via an integrated power supply. Then,
•
Once the PLC transmitter is powered, it will send a ‘keep alive’ signal to RSDs in
the PV system.
•
Once the inverter is disconnected from the AC grid no matter whether it is grid
islanding, the inverter AC is switched off or the general PV system AC is switched off,
the PLC transmitter will cease sending ‘keep alive’ signals. All the RSDs will
automatically turn to shutdown mode to limit PV panels output to a very low voltage
to keep the whole PV system within a safe DC voltage.
5 Electrical Connection User Manual