Growatt SPI 3000 - Wiring Introduction; Terminal Introduction

7
Wiring Introduction
There is DC switch, water level sensor connection terminal, GPRS (optional), and AC output terminal.
Terminal Introduction
Socket
Terminal Introduction
Wiring Introduction
DC Input
PV+
Connect with the positive pole of solar array
PV-
Connect with the negative pole of solar array
AC Output
M-1
Connect with motor U phase
M-2
Connect with motor V phase
M-L
Connect with motor W phase
M-PE
Connect with protective ground wire
Water Level Sensor Input
(Switch Value)
S1
Signa2 of water tank
Signa4 of water tank
S2
Signa2 of well
Signa4 of well
Warning: The places of input sockets of DC positive pole and negative pole of different models are different.
Warning: The signal marshalling sequence of AC output sockets of different models are different.