▪ "Standard 1.2/50 μs - 8/20 us Combination Wave"
▪ "Standard 0.5 μs - 100 kHz Ring Wave"
2.10 DC Arc-fault Protection
The inverter includes DC Arc-fault detection compliant with UL 1699B. The
inverter will detect electrical noise that is indicative of a DC series arc. Upon
detection of an arc-fault, the inverter will cease operation.
2.11 Module-Level Rapid Shutdown
The RSD wirebox includes a Sunspec powerline communication transmitter
for use with APS RSD-S-PLC/RSD-D products.
When the inverter is connected to the AC grid the PLC transformer receives
power via an integrated power supply. Once the transmitter is powered it will
send a “keep alive” signal on the PV string wiring to the MLPE
mounted/integrated at each PV module within the array
Opening the PV system AC disconnect or AC circuit breakers initiates Rapid
Shutdown: The AC conductors become de-energized, the inverter will detect
the loss of AC voltage and cease operation, and the integrated transmitter will
lose its power source and cease sending the “keep alive” signal. Please refer
to the MLPE device user manual for installation and operation
requirements.
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