MPP Solar LV 3KVA-24V User manual

LV 3KVA-24V
INVERTER / CHARGER
Version: 1.3
User Manual

Table of Contents
ABOUT THIS MANUAL ......................................................................................................................................1
Purpose............................................................................................................................................................1
Scope...............................................................................................................................................................1
SAFETY INSTRUCTIONS...................................................................................................................................1
INTRODUCTION.................................................................................................................................................2
Features...........................................................................................................................................................2
Basic System Architecture...............................................................................................................................2
Product Overview.............................................................................................................................................3
INSTALLATION...................................................................................................................................................4
Unpacking and Inspection................................................................................................................................4
Preparation ......................................................................................................................................................4
Mounting the Unit.............................................................................................................................................4
Battery Connection ..........................................................................................................................................5
AC Input/Output Connection............................................................................................................................6
PV Connection.................................................................................................................................................7
Final Assembly.................................................................................................................................................8
Communication Connection.............................................................................................................................9
Dry Contact Signal...........................................................................................................................................9
OPERATION .....................................................................................................................................................10
Power ON/OFF ..............................................................................................................................................10
Operation and Display Panel.........................................................................................................................10
LCD Display Icons .........................................................................................................................................11
LCD Setting....................................................................................................................................................13
Display Setting...............................................................................................................................................18
Operating Mode Description..........................................................................................................................21
Fault Reference Code....................................................................................................................................22
Warning Indicator...........................................................................................................................................23
SPECIFICATIONS.............................................................................................................................................24
Table 1: Line Mode Specifications ..................................................................................................................24
Table 2: Inverter Mode Specifications............................................................................................................25
Table 3: Charging Mode Specifications ..........................................................................................................26
Table 4 General Specifications .......................................................................................................................27
TROUBLESHOOTING......................................................................................................................................28
Appendix I: Approximate Back-up Time Table .............................................................................................29
Appendix II: Parallel function.........................................................................................................................30

1
ABOUT THIS MANUAL
Purpose
This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read
this manual carefully before installations and operations. Keep this manual for future reference.
Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.
SAFETY INSTRUCTIONS
WARNING: This chapter contains important safety and operating instructions. Read and
keep this manual for future reference.
1. Before using the unit, read all instructions and warnings marked on the unit, the batteries and all
appropriate sections of this manual.
2. CAUTION --To reduce risk of injury, charge it with only deep-cycle lead acid type rechargeable
batteries. It might cause burst or result in physical injury and damage if you charge it with other types
of the batteries.
3. Do not disassemble the unit at will. For servicing or repairs, it’s advised to take it to an authorized
service center. Incorrect re-assembly may result in a risk of electric shock or fire.
4. To reduce the risk of electric shock, unplug all wirings from the wall outlet before any maintenance or
cleaning. Turning off the unit will not reduce this risk.
5. CAUTION –Only qualified personnel can install this device with battery.
6. NEVER charge a frozen battery.
7. For optimum operation of this inverter/charger, please follow required spec to select appropriate cable
size. It’s very important to correctly operate this inverter/charger.
8. Be very cautious when working with metal tools on or around the batteries. A potential risk exists when
you drop tools on or around the batteries. Spark, short circuited batteries or other electrical parts might
cause an explosion.
9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals. Please
refer to the INSTALLATION section of this manual for the details.
10. Fuses are provided for over-current protection of the battery supply.
11. GROUNDING INSTRUCTIONS -This inverter/charger should be connected to a permanent grounded
wiring system. Be sure to comply with local requirements and regulation to install this inverter.
12. NEVER cause AC output and DC input short circuited. Do NOT connect to the mains when DC input
short circuits.
13. Warning!! Only qualified service staffs are able to operate this device. If errors still persist after
following the troubleshooting table, please send this inverter/charger back to the local dealer or service
center for maintenance.

2
INTRODUCTION
This is a multi-functional inverter/charger, combining the functions of inverter MPPT solar charger and battery
charger to offer uninterruptible power support with portability. Its comprehensive LCD display offers
user-configurable and easy-accessible button operation such as battery charging current, priority setting for
AC/solar charger, and acceptable input voltage setting to suit different applications.
Features
Pure sine wave inverter
Built-in MPPT solar charge controller
Configurable input voltage range for home appliances and personal computers via LCD setting
Configurable battery charging current to suit different applications via LCD setting
Configurable priority of AC/Solar Charger via LCD setting
Compatible to mains voltage or generator power
Automatic restart while AC is recovering
Overload/ Over temperature/ short circuit protection
Smart battery charger design to optimize battery performance
Cold start function
Basic System Architecture
The following illustration shows basic application of this inverter/charger. It also includes the following devices
to complete the whole running system:
Generator or Utility.
PV modules
Consult your system integrator for other possible system architectures depending on your requirements.
This inverter can power all kinds of appliances at home or in the office, including motor-type appliances such as
tube light, fan, refrigerator and air conditioner.
Figure 1 Hybrid Power System

3
Product Overview
1. LCD display
2. Status indicator
3. Charging indicator
4. Fault indicator
5. Function buttons
6. Power on/off switch
7. AC input
8. AC output
9. PV input
10. Battery input
11. Circuit breaker
12. RS232 communication port
13. Parallel communication port (only for parallel model)
14. Current sharing port (only for parallel model)
15. Dry contact
16. USB communication port