User Manual

1.5KVA-3KVA

INVERTER / CHARGER

Version: 1.0

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

Unpacking and Inspection ................................................................................................................................ 4

Preparation....................................................................................................................................................... 4

Mounting the Unit ............................................................................................................................................. 4

Battery Connection .......................................................................................................................................... 5

AC Input/Output Connection ............................................................................................................................ 6

PV Connection ................................................................................................................................................. 8

Final Assembly ................................................................................................................................................. 9

Communication Connection ............................................................................................................................. 9

Dry Contact Signal ......................................................................................................................................... 10

OPERATION ..................................................................................................................................................... 11

Power ON/OFF .............................................................................................................................................. 11

Operation and Display Panel ......................................................................................................................... 11

LCD Display Icons ......................................................................................................................................... 12

LCD Setting .................................................................................................................................................... 14

Display Setting ............................................................................................................................................... 21

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

Fault Reference Code .................................................................................................................................... 24

Warning Indicator ........................................................................................................................................... 24

SPECIFICATIONS ........................................................................................................................................... 25

Table 1 Line Mode Specifications ................................................................................................................... 25

Table 2 Inverter Mode Specifications ............................................................................................................. 26

Table 3 Charge Mode Specifications............................................................................................................... 27

Table 4 General Specifications ....................................................................................................................... 27

TROUBLE SHOOTING ..................................................................................................................................... 28

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 cautionary markings on the unit, the batteries and all appropriate sections of this manual.

2. CAUTION --To reduce risk of injury, charge only deep-cycle lead acid type rechargeable batteries.

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

3. Do not disassemble the unit. 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 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 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. Fuses (3pcs 63A, 65VDC for 12VDC and 24VDC units) are provided as over-current protection for 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 persons are able to service this device. If errors still persist after following troubleshooting table, please send this inverter/charger back to local dealer or service center for maintenance.

1

INTRODUCTION

This is a multi-function inverter/charger, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support with portable size. 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.

There are two different types of built-in solar chargers: PWM or MPPT solar charger. For the detailed product specification, please consult your local dealers.

Features



Pure sine wave inverter



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



Configurable battery charging current based on applications via LCD setting



Configurable AC/Solar Charger priority via LCD setting



Compatible to mains voltage or generator power



Auto restart while AC is recovering



Overload/ Over temperature/ short circuit protection



Smart battery charger design for optimized battery performance



Cold start function

Basic System Architecture

The following illustration shows basic application for this inverter/charger. It also includes following devices to have a complete running system:

 Generator or Utility.

 PV modules (option)

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

2

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. USB communication port

13. Dry contact

3

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

 USB Communication cable x 1

 Software CD x 1

Preparation

Before connecting all wirings, please take off bottom cover by removing two screws as shown below.

Mounting the Unit

Consider the following points before selecting where to install:

 Do not mount the inverter on flammable construction materials.

 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. 50 cm above and below the unit.

 The ambient temperature should be between -20°C and

55°C to ensure optimal operation.

 The recommended installation position is to be adhered to the wall vertically.

 Be sure to keep other objects and surfaces as shown in the diagram to guarantee sufficient heat dissipation and to have enough space for removing wires.

SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.

4

Install the unit by screwing three screws.

Battery Connection

CAUTION: For safety operation and regulation compliance, it’s requested to install a separate DC over-current protector or disconnect device between battery and inverter. It may not be requested to have a disconnect device in some applications, however, it’s still requested to have over-current protection installed. Please refer to typical amperage in below table as required fuse or breaker size.

Ring terminal:

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

WARNING! It's very important for system safety and efficient operation to use appropriate cable for battery connection. To reduce risk of injury, please use the proper recommended cable and terminal size as below.

Recommended battery cable and terminal size:

Model

1.5KVA 24V

Typical

Amperage

50A

Battery capacity

100AH

Wire Size

1*8WG 8

Cable mm

2

Ring Terminal

Dimensions

D (mm) L (mm)

6.4 23.8

Torque value

2~ 3 Nm

1.5KVA 12V

3KVA 24V

100A

100AH

200AH

1*4AWG 22 6.4 33.2

2~ 3 Nm

2*8AWG 14 6.4 29.2

Please follow below steps to implement battery connection:

1. Assemble battery ring terminal based on recommended battery cable and terminal size.

2. Connect all battery packs as the unit is required. It’s suggested to connect at least 100Ah capacity battery to the unit.

NOTE: Please only use sealed lead acid battery or sealed GEL/AGM lead-acid battery.

3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the bolts are tightened with torque of 2-3 Nm. Make sure polarity at both the battery and the inverter/charge is correctly connected and ring terminals are tightly screwed to the battery terminals.

5

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/disconnector, 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 20A for 1.5KVA and 30A for 3KVA.

CAUTION!! There are two terminal blocks with “IN” and “OUT” markings. Please do NOT mis-connect input and output connectors.

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

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 for AC wires

Model Gauge Torque Value

1.5KVA 16 AWG 0.5~ 0.6 Nm

3KVA 12 AWG 1.2~ 1.6 Nm

Please follow below steps to implement AC 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 3 mm.

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.

→Ground (yellow-green)

L→LINE (brown or black)

N→Neutral (blue)

6

WARNING:

Be sure that AC 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)

L→LINE (brown or black)

N→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 utility 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.

7

PV Connection

CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter and PV modules.

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

PV Module Selection: (Only for the model with built-in PWM solar charger)

WARNING! It's very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce risk of injury, please use the proper recommended cable size as below.

Typical Amperage Gauge Torque Value

50A 8 AWG 1.4~1.6 Nm

When selecting proper PV modules, please be sure to consider below requirements first:

1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.

Charging Current (PWM)

50Amp

System DC Voltage

Operating Voltage Range

12Vdc 24Vdc

15~18Vdc 30~32Vdc

Max. PV Array Open Circuit Voltage

50Vdc 75Vdc

2. Max. Power Voltage (Vmpp) of PV modules should be close to best Vmp of inverter or within Vmp range to get best performance. If one PV module can not meet this requirement, it’s necessary to have several PV modules in series connection.

Maximum PV module numbers in Series: Vmpp of PV module * X pcs ≒ Best Vmp of Inverter or Vmp range

PV module numbers in Parallel: Max. charging current of inverter / Impp

Total PV module numbers = maximum PV module numbers in series * PV module numbers in parallel

Take 12Vdc unit inverter as an example to select proper PV modules. After considering Voc of PV module not exceeds 50Vdc and max. Vmpp of PV module close to 15Vdc or within 15Vdc ~ 18Vdc, we can choose PV module with below specification.

Maximum Power (Pmax) 85W

Max. Power Voltage Vmpp(V) 17.6V

Max. PV module numbers in series

1  17.6 x 1 ≒ 15 ~ 18

Max. Power Current Impp(A) 4.83A

Open Circuit Voltage Voc(V)

Short Circuit Current Isc(A)

21.6V

5.03A

Maximum PV module numbers in Series: 1

PV module numbers in Parallel: 10

Total PV module numbers: 1 x 10 = 10

Take 24Vdc unit inverter as an example to select proper PV module. After considering Voc of PV module not exceed 75Vdc and max. Vmpp of PV module close to 30Vdc or within 30Vdc ~ 32Vdc, we can choose PV module with below specification.

Maximum Power (Pmax) 260W

Max. Power Voltage Vmpp(V) 30.9V

PV module numbers in parallel

10  50 A / 4.83

Total PV module numbers

1 x 10 = 10

Max. PV module numbers in series

1  30.9 x 1 ≒ 30 ~ 32

Max. Power Current Impp(A) 8.42A PV module numbers in parallel

Open Circuit Voltage Voc(V) 37.7V

6  50 A / 8.42

Short Circuit Current Isc(A) 8.89A

Total PV module numbers

1 x 6 = 6

Maximum PV module numbers in Series: 1

PV module numbers in Parallel: 6

Total PV module numbers: 1 x 6 = 6

8

PV Module Selection: (Only for the model with built-in MPPT solar charger)

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

3. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter.

4. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage.

INVERTER MODEL

12Vdc 24Vdc

Max. PV Array Open Circuit Voltage

100Vdc

PV Array MPPT Voltage Range

15~80Vdc 30~80Vdc

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 cable from PV modules and PV input connectors. Then, connect positive pole (+) of connection cable to positive pole (+) of PV input connector. Connect negative pole (-) of connection cable to negative pole (-) of PV input connector.

3. Make sure the wires are securely connected.

Final Assembly

After connecting all wirings, please put bottom cover back by screwing two screws as shown below.

Communication Connection

Please use supplied communication cable to connect to inverter and PC. Insert bundled CD into a computer and follow on-screen instruction to install the monitoring software. For the detailed software operation, please check user manual of software inside of CD.

9

Dry Contact Signal

There is one dry contact (3A/250VAC) available on the rear panel. It could be used to deliver signal to external device when battery voltage reaches warning level.

Unit Status Condition

Power Off Unit is off and no output is powered.

Output is powered from Utility. powered from Battery or Solar.

Program 01 Battery voltage < Low DC set as Utility warning voltage

Battery voltage > Setting value in Program 21 or battery charging reaches

Power On

Program 01 is set as SBU or

Solar first floating stage

Battery voltage < Setting value in Program 20

Battery voltage > Setting value in Program 21 or battery charging reaches floating stage

Dry contact port:

NC & C

Close

Close

NO & C

Open

Open

Open Close

Close

Open

Open

Close

Close Open

10

OPERATION

Power ON/OFF

Once the unit has been properly installed and the batteries are connected well, simply press On/Off switch

(located on the button of the case) to turn on the unit.

Operation and Display Panel

The operation and display panel, shown in below chart, is on the front panel of the inverter. It includes three indicators, four function keys and a LCD display, indicating the operating status and input/output power information.

LCD display

LED indicators

Function keys

LED Indicator

LED Indicator

Green

Messages

Solid On Output is powered by utility in Line mode.

Flashing Output is powered by battery or PV in battery mode.

Solid On Battery is fully charged.

Green

Red

Flashing Battery is charging.

Solid On Fault occurs in the inverter.

Flashing Warning condition occurs in the inverter.

Function Keys

Function Key Description

ESC To exit setting mode

UP

DOWN

ENTER

To go to previous selection

To go to next selection

To confirm the selection in setting mode or enter setting mode

11

LCD Display Icons

Input Source Information

Indicates the AC input.

Indicates the PV input

Indicate input voltage, input frequency, PV voltage, battery voltage and charger current.

Configuration Program and Fault Information

Indicates the setting programs.

Indicates the warning and fault codes.

Warning: flashing with warning code.

Fault:

Output Information

lighting with fault code

Indicate output voltage, output frequency, load percent, load in VA, load in Watt and discharging current.

Battery Information

Indicates battery level by 0-24%, 25-49%, 50-74% and 75-100% and charging status.

Indicates the battery type: AGM, Flooded or User-defined battery.

It will present battery capacity when unit is charging.

Status Battery voltage

<2V/cell

Constant

Current mode /

Constant

2 ~ 2.083V/cell

2.083 ~ 2.167V/cell

LCD Display

4 bars will flash in turns.

Bottom bar will be on and the other three bars will flash in turns.

Bottom two bars will be on and the other two bars will flash in turns.

12

Voltage mode

> 2.167 V/cell

Bottom three bars will be on and the top bar will flash.

4 bars will be on. Floating mode. Batteries are fully charged.

Battery level icon will present battery capacity when unit is discharged.

Load Percentage Battery Voltage LCD Display

< 1.817V/cell

1.817V/cell ~ 1.9V/cell

Load >20%

1.9 ~ 1.983V/cell

> 1.983 V/cell

< 1.867V/cell

1.867V/cell ~ 1.95V/cell

Load < 20%

1.95 ~ 2.033V/cell

> 2.033/cell

Load Information

Indicates overload.

Indicates the load level by 0-24%, 25-50%, 50-74% and 75-100%.

0%~25% 25%~50% 50%~75% 75%~100%

Mode Operation Information

Indicates unit connects to the mains.

Indicates unit connects to the PV panel.

Indicates load is supplied by utility power.

Indicates the utility charger circuit is working.

Indicates the solar charger circuit is working.

Indicates the solar charger is MPPT type.

Mute Operation

Indicates the DC/AC inverter circuit is working.

Indicates unit alarm is disabled.

13

LCD Setting

After pressing and holding ENTER button for 3 seconds, the unit will enter setting mode. Press “UP” or “DOWN” button to select setting programs. And then, press “ENTER” button to confirm the selection or ESC button to exit.

Setting Programs:

Escape

00 Exit setting mode

01

02

Output source priority:

To configure load power source priority

AC input voltage range

Solar first

Utility first (default)

SBU priority

Solar energy provides power to the loads as first priority.

If solar energy is not sufficient to power all connected loads, battery energy will supply power to the loads at the same time.

Utility provides power to the loads only when any one condition happens:

- Solar energy is not available.

- Battery voltage drops to low-level warning voltage or the setting point in program 20.

Utility will provide power to the loads as first priority.

Solar and battery energy will provide power to the loads only when utility power is not available.

Solar energy provides power to the loads as first priority.

If solar energy is not sufficient to power all connected loads, battery energy will supply power to the loads at the same time.

Utility provides power to the loads

Appliances (default) If selected, acceptable AC input voltage range will be within

90-280VAC.

UPS only when battery voltage drops to either low-level warning voltage or the setting point in program 20.

If selected, acceptable AC input voltage range will be within

170-280VAC.

14

03 Output voltage

220Vac

240Vac

230V (Default)

04

05

06

07

08

10

50Hz (default) 60Hz

Output frequency

Saving mode disable

(default)

Power saving mode enable/disable

Saving mode enable

If disabled, no matter connected load is low or high, the on/off status of inverter output will not be effected.

If enabled, the output of inverter will be off when connected load is

Overload bypass:

When enabled, the unit will transfer to line mode if

Bypass disable (default) overload occurs in battery mode.

pretty low or not detected.

Bypass enable

Restart disable (default) Restart enable

Auto restart when overload occurs

Restart disable (default) Restart enable

Auto restart when over temperature occurs

Charger source priority:

To configure charger source priority

If this inverter/charger is working in Line, Standby or Fault mode, charger source can be programmed as below:

Solar first

Utility first

Solar energy will charge battery as first priority.

Utility will charge battery only when solar energy is not available.

Utility will charge battery as first

Solar and Utility

(default) priority.

Solar energy will charge battery only when utility power is not available.

Solar energy and utility will charge battery at the same time.

Only Solar Solar energy will be the only charger source no matter utility is available or not.

15

11

12

Maximum charging current:

To configure total charging current for solar and utility chargers.

(Max. charging current = utility charging current + solar charging current)

If this inverter/charger is working in Battery mode or Power saving mode, only solar energy can charge battery. Solar energy will charge battery if it's available and sufficient.

60A (default) For unit with MPPT solar charger, setting range is from 10A to 100A.

For unit with PWM solar charger, setting range is from 10A to 110A.

Increment of each click is 10A.

40A (default for unit with MPPT solar charger)

When the unit is built with MPPT solar charger, default setting is 40A.

Setting range is from 10A to 40A and increment of each click is 10A.

Maximum solar charging current 50A (default for unit with PWM solar charger)

When the unit is built with PWM solar charger, default setting is 50A.

Setting range is from 10A to 50A and increment of each click is 10A.

2A 10A

20A

13

Maximum utility charging current 40A

30A (default)

50A

60A

14 Battery type

15 Charger stage selection

AGM (default) Flooded

User-Defined

Auto

If “User-Defined” is selected, battery charge voltage and low DC cut-off voltage can be set up in program 17, 18 and 19.

2 Step

16

16 CV charging time setting

3 Step

Auto

10min

40min

90min

150min

No CV charging time

20min

60min

120min

180min

210min 240min

12V model default setting: 14.1V

24V model default setting: 28.2V

17

Bulk charging voltage

(C.V voltage)

If self-defined is selected in program 14, this program can be set up. Setting range is from 12.0V to 15.3V for 12Vdc model and 24.0V to 30.6V for 24Vdc model.

Increment of each click is 0.1V.

12V model default setting: 13.5V

18 Floating charging voltage

24V model default setting: 27.0V

17

If self-defined is selected in program 14, this program can be set up. Setting range is from 12.0V to 15.3V for 12Vdc model and 24.0V to 30.6V for 24Vdc model.

Increment of each click is 0.1V.

12V model default setting: 10.2V

24V model default setting: 20.4V

19

Low DC cut off battery voltage setting

If self-defined is selected in program 14, this program can be set up. Setting range is from 10.2V to 12.0V for 12Vdc model and 20.4V to 24V for 24Vdc model. Increment of each click is

0.1V. Low DC cut-off voltage will be fixed to setting value no matter what percentage of load is connected.

Available options for 12V models:

11.0V

11.3V

11.5V (default) 11.8V

12.0V

12.3V

20

Setting voltage point back to utility source when selecting “SBU priority” or

“Solar first” in program 01.

12.5V 12.8V

Available options for 24V models:

22.0V 22.5V

23.0V (default)

24.0V

23.5V

24.5V

18

25.0V 25.5V

Available options for 12V models:

Battery fully charged 12.0V

12.3V 12.5V

12.8V 13.0V

13.3V 13.5V (default)

21

13.8V 14.0V

Setting voltage point back to battery mode when selecting “SBU priority” or

“Solar first” in program 01.

14.3V 14.5V

Available options for 24V models:

Battery fully charged 24V

24.5V

25.5V

25V

26V

26.5V 27V (default)

19

27.5V

28.5V

28V

29V

22

23

24

25

27

Auto return to default display screen

Return to default display screen (default)

Stay at latest screen

If selected, no matter how users switch display screen, it will automatically return to default display screen (Input voltage

/output voltage) after no button is pressed for 1 minute.

If selected, the display screen will stay at latest screen user finally switches.

Backlight on (default) Backlight off

Backlight control

Alarm on (default) Alarm off

Alarm control

Beeps while primary source is interrupted

Alarm on (default) Alarm off

Record enable(default) Record disable

Record Fault code

20

Display Setting

The LCD display information will be switched in turns by pressing “UP” or “DOWN” key. The selectable information is switched as below order: input voltage/output voltage, input frequency, PV voltage, charging current, output frequency, load percentage, load in VA, load in Watt, battery voltage/DC discharging current, main CPU Version and secondary CPU Version.

Selectable information LCD display

Input Voltage=230V, output voltage=230V

Input voltage/Output voltage

(Default Display Screen)

Input frequency=50Hz

Input frequency

PV voltage=60V

PV voltage

Charging current=80A

Charging current

Output frequency=50Hz

Output frequency

Load percent=60%

Load percentage

21

Load in VA

Load in Watt

When connected load is lower than 1kVA, load in

VA will present xxxVA like below chart.

When load is larger than 1kVA (≧1KVA), load in

VA will present x.xkVA like below chart.

When load is lower than 1kW, load in W will present xxxW like below chart.

When load is larger than 1kW (≧1KW), load in W will present x.xkW like below chart.

Battery voltage/ DC discharging current

Battery voltage=25.8V, discharging current=80A

Main CPU version checking

Main CPU version 00001.00

Secondary CPU version 00001.00

Secondary CPU version checking

22

Operating Mode Description

Operation mode Description LCD display

Charging by utility and PV energy.

Standby mode / Power saving mode/ Fault mode

Note:

*Standby mode: The inverter is not turned on yet but at this time, the inverter can charge battery without AC output.

*Power saving mode: If enabled, the output of inverter will be off when connected load is pretty low or not detected.

*Fault mode: Errors are caused by inside circuit error or external reasons such as over temperature, output short circuited and so on.

Charging by utility.

No output is supplied by the unit but it still can charge batteries.

Charging by PV energy.

No charging.

Charging by utility and PV energy.

Line Mode

The unit will provide output power from the mains. It will also charge the battery at line mode.

Charging by utility.

Charging by PV energy.

Battery Mode

Power from battery and PV energy.

The unit will provide output power from battery and PV energy.

Power from battery only.

23

Fault Reference Code

Fault Code

01

Fault Event

Fan is locked when inverter is off.

52

53

55

56

57

58

03

05

06

07

08

09

51

Battery voltage is too high

Output short circuited.

Output voltage is too high.

Overload time out

Bus voltage is too high

Bus soft start failed

Over current or surge

Bus voltage is too low

Inverter soft start failed

Over DC voltage in AC output

Battery detection circuit error

Current sensor failed

Output voltage is too low

Warning Indicator

01

03

Warning

Code

Warning Event

Fan is locked when inverter is on.

Audible Alarm

Beep three times every second

Battery is over-charged Beep once every second

04

07

Low battery

Overload

Beep once every second

Beep once every 0.5 second

10 Output power derating Beep twice every 3 seconds

Icon on

Icon flashing

24

SPECIFICATIONS

Table 1 Line Mode Specifications

INVERTER MODEL

Input Voltage Waveform

Nominal Input Voltage

Low Loss Voltage

Low Loss Return Voltage

High Loss Voltage

High Loss Return Voltage

Max AC Input Voltage

Nominal Input Frequency

Low Loss Frequency

Low Loss Return Frequency

High Loss Frequency

High Loss Return Frequency

Output Short Circuit Protection

Efficiency (Line Mode)

Transfer Time

1.5K-12V / 1.5K-24V / 3K-24V

Sinusoidal (utility or generator)

220/230/240Vac

170Vac±7V (UPS);

90Vac±7V (Appliances)

180Vac±7V (UPS);

100Vac±7V (Appliances)

280Vac±7V

270Vac±7V

300Vac

50Hz / 60Hz (Auto detection)

40±1Hz

42±1Hz

65±1Hz

63±1Hz

Circuit Breaker

>95% ( Rated R load, battery full charged )

10ms typical (UPS);

20ms typical (Appliances)

Output power derating:

When AC input voltage drops to 170V, the output power will be de-rated.

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Table 2 Inverter Mode Specifications

Inverter Mode

Inverter Model

Rated Output Power

Output Voltage Waveform

Output Voltage Regulation

Output Frequency

Peak Efficiency

Overload Protection

Surge Capacity

Nominal DC Voltage

Cold Start Voltage

Low DC Warning Voltage

@ load < 20%

@ load ≥ 20%

Low DC Warning Recovery Voltage

@ load < 20%

@ load ≥ 20%

Low DC Cut-off Voltage

@ load < 20%

@ load ≥ 20%

High DC Recovery Voltage

High DC Cut-off Voltage

DC Voltage Accuracy

THDV

DC Offset

1.5K-12V 1.5K-24V 3K-24V

1500VA/1200W 3000VA/2400W

Pure Sine Wave

220Vac/230Vac/240Vac±5%

50Hz

90%

5s@≥150% load; 10s@110%~150% load

2 x rated power for 5sec

12Vdc 24Vdc

11.5Vdc 23.0Vdc

11.0Vdc

10.7Vdc

22.0Vdc

21.4Vdc

11.5Vdc

11.2Vdc

10.5Vdc

10.2Vdc

23.0Vdc

22.4Vdc

21.0Vdc

20.4Vdc

15.0Vdc 31.0Vdc

16.0Vdc 32.0Vdc

+/-0.3%V@ no load

<3% for linear load,<5% for non-linear load @ nominal voltage

≦100mV

No Load Power Consumption

Saving Mode Power Consumption

<25W

<10W

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Table 3 Charge Mode Specifications

INVERTER MODEL

Charging Algorithm

Utility Charging Mode

AC Charging Current

Bulk Charging

Voltage

Flooded Battery

AGM / Gel Battery

Floating Charging Voltage

1.5K-12V

3-Step

1.5K-24V / 3K-24V

2/10/20/30/40/50/60Amp (@V

I/P

=230Vac)

14.6Vdc 29.2Vdc

14.1Vdc 28.2Vdc

13.5Vdc 27.0Vdc

Charging Curve

PWM Solar Charging Mode

Charging Current

System DC Voltage

Operating Voltage Range

Max. PV Array Open Circuit Voltage

DC Voltage Accuracy

Joint Utility and Solar Charging

Max Charging Current

Default Charging Current

MPPT Solar Charging Mode

Charging Current

PV Array MPPT Voltage Range

Max. PV Array Open Circuit Voltage

DC Voltage Accuracy

Joint Utility and Solar Charging

Max Charging Current

Default Charging Current

Table 4 General Specifications

INVERTER MODEL

Safety Certification

Operating Temperature Range

Storage temperature

Humidity

Dimension (DxWxH), mm

Net Weight, kg

50Amp

12Vdc 24Vdc

15~18Vdc 30~32Vdc

50Vdc 75Vdc

+/-0.3%

110Amp

60Amp

15Vdc ~ 80Vdc

40Amp

100Vdc

+/-0.3%

100Amp

60Amp

30Vdc ~ 80Vdc

1.5K-12V / 1.5K-24V / 3K-24V

CE

-20°C to 55°C

-30°C~ 60°C

5% to 95% Relative Humidity (Non-condensing)

100 x 272 x 355

7

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TROUBLE SHOOTING

Problem

Unit shuts down automatically during startup process.

No response after power on.

LCD/LED/Buzzer Explanation / Possible cause

LCD/LEDs and buzzer will be active for 3 seconds and then complete off.

The battery voltage is too low

(<1.91V/Cell)

No indication.

1. The battery voltage is far too low. (<1.4V/Cell)

2. Battery polarity is connected reversed.

Input voltage is displayed as 0 on the

LCD and green LED is flashing.

Input protector is tripped

Mains exist but the unit works in battery mode.

Buzzer beeps continuously and red LED is on.

Green LED is flashing.

Fault code 07

Set “Solar First” or “SBU” as the priority of output source.

Overload error. The inverter is overload 110% and time is up.

Fault code 05

Fault code 02

Fault code 03

Fault code 01

Fault code 06/58

Fault code

08/09/53/57

Fault code 51

Fault code 52

Fault code 55

Fault code 56

Output short circuited.

Internal temperature of inverter component is over 80°C.

Battery is over-charged.

The battery voltage is too high.

Fan fault

Output abnormal.

Internal components failed.

Over current or surge.

Bus voltage is too low.

Output voltage is unbalanced.

Battery detection circuit error.

What to do

1. Re-charge battery.

2. Replace battery.

1. Check if batteries and the wiring are connected well.

2. Re-charge battery.

3. Replace battery.

Check if AC breaker is tripped and AC wiring is connected well.

1. Check if AC wires are too thin and/or too long.

2. Check if generator (if applied) is working well or if input voltage range setting is correct. (UPSAppliance)

Change output source priority to Utility first.

Reduce the connected load by switching off some equipment.

Check if wiring is connected well and remove abnormal load.

Check whether the air flow of the unit is blocked or whether the ambient temperature is too high.

Return to repair center.

Check if spec and quantity of batteries are meet requirements.

Replace the fan.

1. Reduce the connected load.

2. Return to repair center

Return to repair center.

Restart the unit, if the error happens again, please return to repair center.

If the battery is connected well, please return to repair center.

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