The manual shutdown procedure can be a useful tool for solving errors and glitches that you’re experiencing with your solar PV power system. Follow the guide below to power down your system (and switch it back on again).
Locate the AC ISOLATOR main switch and turn the switch to the OFF position. Alternatively, go to your fuse board, locate the PV ARRAY main switch, and flick to the OFF position. At the inverter, locate the DC ISOLATOR and turn to the OFF position. If there is a battery fitted, locate the 2nd DC ISOLATOR, and turn to the OFF position.
Within the entire system, the AC side can be disconnected via the NFB (no-fuse breaker) on the AC distribution panel. The DC side can be disconnected either via the DC switch on the solar PV inverter or through the DC junction box, which provides two disconnection methods: a DC switch and a DC fuse.
Recommended Shutdown Procedure: Use the shutdown feature on the machine or through the monitoring system to perform the shutdown operation. Shutting down the inverter will prevent backflow to the grid, ensuring grid stability and personnel safety.
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