This PLC transmitter sends a “keep alive” signal to the MLPE
mounted/integrated at each PV module within the array. When the inverter
senses the loss of AC voltage by way of opening the PV system disconnect
switch, inverter circuit breaker or under loss of grid events, the transmitter
ceases sending signal, and the MLPE devices go into rapid shutdown. This
rapid shutdown system has been tested and certified with APS RSD-S-
PLC/RSD-D products to meet NEC 2017/2020 rapid shutdown
requirements.
The negative fuses have been removed from this model in accordance with
NEC 2017/2020 690.9(C).
Figure 2-4 CPS SCA36/50/60KTL-DO/US-480 Inverter Schematic, RSD Wirebox
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