3 Product Overview
3 / 32
3 Product Overview
3.1 Product Introduction
The inverter is single-phase grid-connected PV string inverter without transformer, which can convert the DC power
from the photovoltaic (PV) strings into alternating current (AC) power, and feed the power into the power grid.
This document involves the product model: CSI-5K-S22002-E and CSI-5K-S22003-E.
PV grid-connected systems mainly include PV modules, DC switches, inverters, AC switches, electricity meters,
and local grid. The PV power system diagram is shown as FIG.3-1.
KWH
PV Modules DC Switch Inverter AC Switch Electricity Meter Utility Grid
FIG. 3-1 PV Power System Diagram
3.2 Appearance
Front view and bottom view
AC OUTPUT
CT/METER
COMM. PORT
DRM
PV-1
PV-2
VENT VALVE
DO NOT DISCONNECT UNDER LOAD!
DC SWITCH
ON
OFF
A
B
C
E F G H I
D
FIG. 3-2 Inverter Appearance
Object
Name
Description
Ａ
LED indicator
Indicates inverter operation status.
B
DC disconnect switch
Disconnects the DC current safely. For long term durability do not
use under full load or switch of AC power before.
C
DC input connectors
/
D
DRM receptacle
Connects DRM.
E
Communication port
Connects wireless datalogger (WiFi), RS485.
F
Waterproof and breathable valve
/
G
CT / Meter receptacle
Connects CT or Meter.
H
AC receptacle
Jack/Receptacle for AC/grid connection
I
External ground point
/
