KStar KSG-4K-DM User Manual

Installation and Operation Manual 17
The following example shows the process when PV voltage is increased
from 120V:
Turn on the inverter, its model
and version will be displayed
first.
The input voltage is less
150V but higher than 120V,
the inverter will be in stand-
by status.
The input voltage is higher
than 150V, the inverter will
be in self-test status.
After self testing, the
inverter will be in normal
working status (the data
only for reference).
Attention: Before connecting to DC, please make sure
input positive (+) and negative (-) connections are correct,
otherwise the component of inverter will be damaged,
which may cause the inverter in abnormal operation status.
System Info
Model: XXXXXX
DSP: V1.0 ARM: V1.1
SN: XXXXXXXXXXXX
Standby
Checking........
RIyChk Remain: 60 S
Standby
Checking........
RIyChk Remain: 00 S
Normal
Power: 4993 W
APP Power: 5004 VA

KStar KSG-4K-DM Specifications

General

Brand	KStar
Model	KSG-4K-DM
Category	Inverter
Language	English

Summary

Safety Instructions

Electric Shock Hazards

Details hazards related to AC and DC connections during maintenance or installation.

Safe Inverter Operation

Instructions for professional operation and handling of inverter components.

Grid Connection Requirements

High Temperature Protection

Warns about hot components and the risk of burns.

RCD/RCM Protection Requirement

Recommends RCD or RCM of Type B for protection against DC current.

Grounding and Connection Safety

Emphasizes correct grounding and reliable electrical connections for safe operation.

Wiring and Cable Safety

Mandates external DC/AC breakers, appropriate PV cables, and local compliance.

Installation

Inverter Installation Guidelines

Provides essential guidelines for selecting a suitable location and environmental conditions for installation.

Installation Location Guidelines

Details preferred and prohibited orientations and mounting heights for the inverter.

Installation Procedure Steps

Wiring Connections

Details the DC input, AC output, and communication port wiring procedures.

Circuit Breaker Specifications

Connection Procedure

Guides on connecting the inverter to the municipal grid and solar arrays.

Connecting to Municipal Grid

Details the process for safely connecting the inverter to the municipal electrical grid.

Connecting to Solar Array

Guides on connecting the solar arrays, including voltage and current considerations.

Operation

Trial Operation

Working Status Modes

Status Indicators and Faults

Max Power Point Tracking (MPPT)

LCD Display and Settings Navigation

LCD Display Information

System Faulty Display Codes (F00-F09)

System Faulty Display Codes (F10-F32)

Communication Interface

Trouble Shooting

AC Voltage and Frequency Issues

Bus Voltage Issues

Insulation and Input Current Faults

Hardware Current Faults

Inverter Current and Temperature Faults

AC Relay and PV Input Faults

Remote Off and Communication Faults

Specifications