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Must EP18-5048 - User Manual

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PC TV
Air-
conditioning
Fridge
Washing
machine
Appliances
3KW- 5KW
INVERTER/CHARGER
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Summary

About This Manual

Purpose and Scope

Details the manual's objective, coverage of installation, operation, safety, and troubleshooting.

Safety Instructions

General Safety Precautions

Essential safety rules, warnings, and precautions for operation, installation, and maintenance.

Introduction to Inverter;Charger

Key Features

Lists core capabilities like pure sine wave, configurable settings, auto-restart, and protection features.

System Architecture Overview

Explains the basic application and components of the inverter system with a diagram.

Product Overview and Components

Unit Component Identification

Identifies and describes the various ports and controls on the single and parallel inverter models.

Installation Guide

Unpacking and Preparation

Covers inspecting package contents and preparing the unit for mounting.

Mounting the Unit

Provides guidelines for selecting an installation location, ensuring ventilation and clearance.

Battery Connection

Details recommended battery cable size, terminal type, and connection procedure, including warnings.

AC Input;Output Connection

Explains how to connect AC power sources, including breaker recommendations and cable sizing.

Final Assembly

Instructions for completing physical assembly after wiring by reattaching the bottom cover.

Communication and Signals

Communication Port Setup

Details connecting the inverter to a PC via communication cable and RJ45 pin definitions.

Dry Contact Signal Function

Explains the use of the dry contact for delivering signals to external devices based on battery voltage.

Operation and Controls

Power ON;OFF and Display Panel

Describes how to power the unit and the layout of the operation and display panel.

LCD Display Icons and Information

Explains the meaning and function of various icons shown on the inverter's LCD screen.

Load and Mode Operation Indicators

Details display indicators for load levels, operating modes, and mute status.

LCD Setting and Configuration

Setting Program Navigation

Introduces how to enter and navigate the setting mode for various configuration programs.

Output Frequency and Load Priority Settings

Covers settings for output frequency, load supply priority, and overload handling options.

Auto Restart and Grid Feed Configuration

Explains auto-restart functions, battery energy feed to grid, and charger source priority.

Battery Type and Voltage Configuration

Details settings for battery type, bulk/floating voltages, and cut-off voltage levels.

Discharging and Display Settings

Covers battery stop discharging/charging voltages and automatic display page turning.

Alarm, Backlight, and Power Saving Settings

Explains controls for backlight, alarms, beeps, and power saving modes.

Battery Equalization Management

Details advanced settings for battery equalization activation, voltage, time, and interval.

BMS and SOC Based Settings

Covers BMS control method and battery stop settings based on State of Charge (SOC).

Fault Reference Codes

Fault Codes and Causes

Lists fault codes, their causes, and corresponding LCD indications for troubleshooting.

Warning Indicator Codes

Explains warning codes, their events, and corresponding icon flashing patterns for alerts.

Operating States and Display

Operating State Descriptions

Describes the different operating states of the inverter and their visual representation on the LCD.

Display Information Selection

Explains how to switch and view various parameters on the LCD display.

Specifications

Line Mode Specifications

Provides detailed technical specifications for the inverter when operating in Line Mode.

Inverter Mode Specifications

Lists technical specifications for the inverter when operating in Inverter Mode, including output and DC input.

Charge Mode Specifications

Details technical specifications related to the charging mode, algorithms, and currents.

General Specifications

Provides general technical details like safety certification, operating temperature, dimensions, and weight.

Troubleshooting Guide

Appendix: Backup Time Table

Must EP18-5048 Specifications

General IconGeneral
ModelEP18-5048
Rated Power5000W
Input Voltage230VAC
Frequency Range50Hz/60Hz (Auto sensing)
Output Voltage Regulation230VAC ± 5%
Surge Power10000W
Efficiency (Peak)93%
WaveformPure sine wave
Battery Voltage48VDC
Floating Charge Voltage54VDC
Overcharge Protection60VDC
Maximum PV Array Open Circuit Voltage145VDC
Maximum Solar Charge Current80A
Maximum AC Charge Current60A
Maximum Charge Current140A
Humidity5% to 95% Relative Humidity (Non-condensing)
Selectable Voltage Range170~280VAC (For Personal Computers); 90~280VAC (For Home Appliances)
Transfer Time10ms
Operating Temperature Range0°C ~ 55°C
Storage Temperature-15°C - 60°C
PV Array MPPT Voltage Range60-115VDC

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