Maximo PV4048 HM Manuale utente

maximo

USER’S MANUAL

SOLAR INVERTER

PV4048 HM &

PV5048 HM

Version 10 August 2018

Appliances

PC TV Air-conditioning Fridge Washing machine

Table of Contents

ABOUT THIS MANUAL ................................................................................................... 1

Purpose..........................................................................................................................................1

SAFETY INSTRUCTIONS .............................................................................................. 1

INTRODUCTION ........................................................................................................... 3

Features.........................................................................................................................................3

Basic System Architecture............................................................................................................3

Product Overview .........................................................................................................................4

INSTALLATION ............................................................................................................ 5

Unpacking and Inspection.............................................................................................................5

Preparation....................................................................................................................................5

Mounting the Unit.........................................................................................................................5

Battery Connection .......................................................................................................................6

AC Input/ Output Connection.......................................................................................................8

PV Connection............................................................................................................................10

Communication Connection .......................................................................................................11

Dry Contact Signal......................................................................................................................11

Connecting the CAN Cable ........................................................................................................11

OPERATION ................................................................................................................ 12

Power ON/OFF...........................................................................................................................12

Operation and Display Panel ......................................................................................................12

LCD Display Icons .....................................................................................................................13

LCD Setting................................................................................................................................15

Fault Reference Code..................................................................................................................20

Warning Indicator.......................................................................................................................22

Operating Mode Description.......................................................................................................23

Display Setting............................................................................................................................25

SPECIFICATIONS .....................................................................................................................26

Table 1 Line Mode Specifications..............................................................................................26

Table 2 Inverter Mode Specifications.........................................................................................27

Table 3 Charge Mode Specifications..........................................................................................28

Table 4 General Specifications...................................................................................................29

TROUBLE SHOOTING ................................................................................................. 29

Appendix: Approximate Back-up Time Table .......................................................... 30

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 installing the inverter, read all instructions and cautionary markings on the inverter, the

batteries and all appropriate sections of this manual.

2. CAUTION –Only use rechargeable deep-cycle lead acid type flooded, AGM or GEL batteries.

or Lithium batteries. Other types of batteries may burst, causing injury and damage.

3. Do not disassemble the inverter. Take it to a qualified service center when service or repair is

required. Incorrect re-assembly may result in a risk of electric shock or fire.

4. To reduce risk of electric shock, disconnect all wirings before attempting any maintenance or

cleaning. Turning off the unit will not reduce this risk.

5. CAUTION --Only qualified personnel should install this inverter and connect batteries.

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.

8. Be very cautious when working with metal tools on or around batteries. A potential risk exists

to drop a tool to spark or short circuit batteries or other electrical parts and could cause an

explosion.

9. Please strictly follow installation procedure when you want to disconnect AC or DC terminals.

Please refer to INSTALLATION section of this manual for the details.

10. A Battery Isolator of appropriate size needs to be installed as over-current protection between

the inverter and the battery.

11. GROUNDING INSTRUCTIONS- This inverter 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 persons should service this inverter. If errors persist after

following the troubleshooting table, please send this inverter back to local dealer or service

center for maintenance.

INTRODUCTION

This is a multi-function inverter/charger, combining the functions of inverter, MPPT solar charger

and battery charger to offer uninterruptible power supply. Its comprehensive LCD display offers

user-configurable and easy-accessible button operation such as battery charging current, AC/solar

charger priority, and acceptable input voltage based on different applications.

Features

Pure sine wave inverter, with built-in MPPT solar charge controller

Built-in automatic generator start function, 2-wire start

Configurable input voltage range for home appliances and personal computers via LCD setting

Configurable battery charging current based on applications via LCD setting

ConfigurableAC/Solar Charger priority via LCD setting

Compatible to mains voltage or generator power

Auto restart whileAC is recovering

Overload/ Over temperature/ short circuit protection

Smart battery charger design for optimized battery performance

Cold start function

Basic SystemArchitecture

The following illustration shows a basic application for this inverter/charger. It also includes

following devices to have a complete running system:

Generator

PV modules

Consult with your system integrator for other possible system architectures depending on your

requirements.

This inverter can power all kinds of appliances in home or office environment, including

motor-type appliances such as tube light, fan, refrigerator and air conditioner.

Figure 1 Hybrid Power System

Product Overview

4KVA-5KVA parallel model

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. RS485 communication port

13. Parallel communication port (only for parallel model)

14. Parallel switch

15. Dry contact

16. USB

4KVA-5KVA single model

NOTE: For parallel model installation and

operation, please check separate parallel

installation guide for the details.

INSTALLATION

Unpacking and Inspection

Before installation, please inspect the unit. Be sure that nothing inside the package is damaged.

You should have received the following items inside of package:

The unit x 1

User manual x 1

Communication cable x 1

USB cable x 1

Software CD x 1

Preparation

To be able to connect all wiring, take off bottom cover by removing four screws as shown below.

Mounting the Unit

Consider the following points before selecting where to install:

SUITABLE FOR MOUNTINGON NON-COMBUSTIBLE SURFACE ONLY.

Install the unit by screwing three screws

⚫Do not mount the inverter on flammable

construction materials.

⚫Indoor use only, IP 20 rated, avoid direct sunlight

⚫Mount on a solid surface.

⚫Install this inverter at eye level in order to allow

the LCD display to be read at all times.

⚫For proper air circulation to dissipate heat, allow

a clearance of approx. 20 cm to the side and

approx. 30 cm above and below the unit.

⚫The ambient temperature should be between 0℃

and 55℃to ensure optimal operation.

⚫The recommended installation position is

vertically to the wall.

⚫Be sure to keep other objects away as shown in

the diagram to guarantee sufficient heat

dissipation and to have space for removing wires

Battery Connection

CAUTION: For safe operation and regulation compliance, it's required to install a separate DC

over-current protector or isolator between battery and inverter. It may not be required to have a

battery isolator in some applications, however, it's still required to have an over-current protection

installed. Please refer to table below for typical amperage to determine required fuse or breaker

and cable size.

WARNING! All wiring must be performed by a qualified person.

WARNING! It's very important for system safety and efficient operation to use

appropriate cable for battery connection. In a parallel system (two or three units)

make the battery cables the same length.

Model

Typical

Amperage

Battery

Capacity

Wire Size

Ring Terminal

Torque

Value

Cable

mm2

Dimensions

D(mm)

L(mm)

4048

66A

200AH

1*4AWG

6.4

33.2

2~3Nm

2*8 AWG

6.4

29.2

5048

87A

200AH

1*4AWG

6.4

33.2

2~3Nm

2*8 AWG

6.4

29.2

Please follow below steps to implement battery connection:

1. Fit recommended cable lugs to battery cables.

2. Connect batteries to make a 48V battery bank. Suggested battery capacity is at least 200Ah

for the 4KVA/5KVA inverter model.

NOTE: Only use Deep Cycle Flooded/GEL/AGM lead acid battery or approved Lithium batteries.

Ring terminal:

3. Insert the cable lugs of battery cable flatly into the M6 battery connector of the inverter and

make sure the nuts are tightened with a torque of 2-3 Nm. Making sure polarity at both the

battery/battery isolator and the inverter is correctly connected.

WARNING: Shock Hazard

Installation must be performed with care due to high battery voltage in series.

CAUTION!! Do not place anything between the flat part of the inverter terminal and

the ring terminal. Otherwise, overheating may occur.

CAUTION!! Do not apply anti-oxidant substance on the terminals before

terminals are connected tightly.

CAUTION!! Before making the final DC connection or closing DC

breaker/isolator, be sure positive (+) must be connected to positive (+) and

negative (-) must be connected to negative (-).

AC Input / Output Connection

CAUTION!! Before connecting to AC input power source, please install a separate AC breaker

between inverter and AC input power source. This will ensure the inverter can be securely

disconnected during maintenance and fully protected from over current of AC input. The

recommended spec of AC breaker is 40A for 4KVA and 50A for 5KVA.

CAUTION!! There are two terminal blocks with "IN" and "OUT" markings. Please do

NOT-misconnect input and output connectors.

WARNING!All wiring must be performed by a qualified person.

WARNING! It's very important for system safety and efficient operation to use appropriate cable

for AC input connection. To reduce risk of injury, please use the proper recommended cable size

as below.

Suggested cable requirement forAC wires

Model

Gauge

Torque Value

4KVA

10AWG

1.4~1.6Nm

5KVA

8AWG

1.4~1.6Nm

Please follow below steps to implementAC input/output connection:

1. Before making AC input/output connection, be sure to open DC protector or disconnector first.

2. Remove insulation sleeve 10mm for six conductors. And shorten phase L and neutral conductor

N 3mm.

3. Insert AC input wires according to polarities indicated on terminal block and tighten the

terminal screws. Be sure to connect PE protective conductor ( ) first.

WARNING:

Be sure to thatAC power source is disconnected before attempting to hardwire it to the unit.

4. Then, insert AC output wires according to polarities indicated on terminal block and tighten

terminal screws.

Be sure to connect PE protective conductor ( )first.

Ground (yellow-green)

LINE (brown or black)

Neutral (blue)

Ground (yellow-green)

L LINE (brown or black)

Neutral (blue)

5. Make sure the wires are securely connected.

CAUTION: Important

Be sure to connect AC wires with correct polarity. If L and N wires are connected reversely, it may

cause AC short-circuited when these inverters are worked in parallel operation.

CAUTION: Appliances such as air conditioner are required at least 2~3 minutes to restart because

it's required to have enough time to balance refrigerant gas inside of circuits. If a power shortage

occurs and recovers in a short time, it will cause damage to your connected appliances. To prevent

this kind of damage, please check manufacturer of air conditioner if it's equipped with time-delay

function before installation. Otherwise, this inverter/charger will trig overload fault and cut off

output to protect your appliance but sometimes it still causes internal damage to the air

conditioner.

PV Connection

CAUTION: Before connecting to PV modules, please install a DC circuit breaker or DC isolator

of appropriate size between inverter and PV modules.

WARNING!All wiring must be performed by a qualified person.

WARNING! It's very important for system safety and efficient operation to use appropriate cable

size for PV module connection.

Model

TypicalAmperage

Cable Size

Torque

4048/60A

5048/60A

60A

8 AWG

1.4~1.6Nm

4048/80A

5048/80A

80A

6 AWG

2.0~2.4Nm

PV Module Selection:

When selecting PV modules, please be sure to consider below parameters:

1. Open circuit Voltage (Voc) of PV array can not exceed 145Vdc in the coldest condition.

2. Open circuit Voltage (Voc) of PV array needs to be higher than minimum battery voltage

Solar Charging Mode

INVERTER MODEL

4048/60A 5048/60A

4048/80A 5048/80A

Max. PVArray Open Circuit Voltage

145Vdc

PVArray MPPT Voltage Range

64~130Vdc

Min. battery voltage for PV charge

34Vdc

Please follow below steps to implement PV module connection:

1. Remove insulation sleeve 10 mm for positive and negative conductors

2. Check correct polarity of connection from PV array to PV input

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