FR-DCMG DC System Monitor User Manual Fonrich New Energy Technology Co., Ltd.
Symbol
Definition of the symbol
DC+、DC-
PV DC bus power supply terminals
NC
No connection
FG
Field Ground terminal
TS
External temperature sensor terminal
SG
Temperature and digital input common terminal (Signal Ground)
DI1、DI2
Digital Input terminals
A、B
Modbus communication terminals
RV、RG
Power supply of the RTM bus
RA、RB
Communication terminals of the RTM bus, for driver signal if need
shunt tripping coil
ANT
SMA wireless antenna port/No connection
FMB bus
Port of the FMB bus
FR-PVMA-LHSA Leakage Current Sensor
Symbol
Definition of the symbol
RTM_V, RTM_G Power supply from Main Unit, wire to RV, RG terminals in main unit
RTM_A, RTM_B Communication terminals of the RTM bus, wire to RA, RB terminals
in main unit
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