VFD500-PV Series - Solar Pumping Inverter - Operation Manual

The power output of the PV panel is connected to the “+” and “-” terminals. Please note that the polarity is not reversed. Make sure that the inverter input AC voltage level is consistent with AC grid voltage before connecting with Input “R”, “S” and “T” terminals If Grid is single-phase power supply, you can connect to R T or any two terminals of “R”, “S” and “T”。 DI1 defaults to the running terminal input. AI2 defaults to the water tank level detection signal input, which is used to control the inverter sleep and auto start. Relay 1 output defaults to the fault signal output.