User Manual - Computer Restore

1KVA/ 2KVA/ 3KVA

INVERTER / CHARGER

User Manual

*with built-in 25amp MPPT SCC

CONTENTS

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

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

 

Scope ............................................................................................................................................................... 1

 

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

INTRODUCTION ................................................................................................................................................. 2 

Features ........................................................................................................................................................... 2

 

Basic System Architecture ............................................................................................................................... 2

 

Product Overview ............................................................................................................................................. 3

 

Operation Diagrams and Working Conditions ................................................................................................. 4

 

INSTALLATION ................................................................................................................................................... 8 

Unpacking and Inspection ................................................................................................................................ 8

 

Preparation....................................................................................................................................................... 8

 

Mounting the Unit ............................................................................................................................................. 8

 

Battery Connection .......................................................................................................................................... 9

 

AC Input/Output Connection .......................................................................................................................... 10

 

PV Connection ............................................................................................................................................... 11

 

Final Assembly ............................................................................................................................................... 12

 

OPERATION ...................................................................................................................................................... 13 

Power ON/OFF .............................................................................................................................................. 13

 

Operation and Display Panel ......................................................................................................................... 13

 

LCD Display Icons ......................................................................................................................................... 14

 

LCD Setting .................................................................................................................................................... 16

 

Display Setting ............................................................................................................................................... 17

 

Operating Mode Description .......................................................................................................................... 20

 

Fault Reference Code .................................................................................................................................... 21

 

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

 

SPECIFICATIONS ............................................................................................................................................. 23 

Table 1 Line Mode Specifications ................................................................................................................... 23 

Table 2 Invert Mode Specifications ................................................................................................................ 24 

Table 3 Charge Mode Specifications............................................................................................................... 25 

Table 4 General Specifications ....................................................................................................................... 25 

Charging Controls ........................................................................................................................................... 26 

TROUBLE SHOOTING ..................................................................................................................................... 27 

Appendix: Approximate Back-up Time Table ............................................................................................... 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 (40A, 32VDC *3pcs for 1KVA; *4pcs for 2KVA and *6pcs for 3KVA) 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.

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

Note: Appliances like air conditioner need 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.

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. Communication port

3

Operation Diagrams and Working Conditions

Operation Diagrams and work conditions

Abbreviation:

I

UC

,

charging current from AC charger

I

SC

,

charger current from solar charger

I

CHG

,

total charging current of battery

I

DISC

,

discharging current from battery

I

LOAD

,

output current of AC load sbu, output priority is solar >battery >utility

1) When utility source is not present, I

UC

=0, battery charged from solar source, I

CHG

=I

SC

, load powered from solar and battery power, the Max. I

SC

goes up to 25Amp if solar panel with enough energy.

Utility Source

Solar Source

Utility Charger

I

UC

Solar Charger

I

SC

I

CHG

I

DISC

DC/AC Inverter

I

LOAD

Battery Bank

Priority Setting Combinations:

Charger Priority Output Source Priority

solar solar utility utility solar utility solar sbu

AC Load

4

2) When solar source is not present, I

SC

=0, battery charged from utility source, I

CHG

=I

UC

, load powered from utility

Priority Setting Combinations:

Charger Priority Output Source Priority

solar solar utility utility solar utility solar sbu

3) When utility and solar are presented, battery charged from solar source, I

CHG

=I

SC

, load powered from solar and battery, the Max. I

SC

goes up to 25Amp if solar panel with enough energy. . If solar priority, output source turn to utility side in case solar panel without energy or battery voltage down to pre-alarm level. If sbu priority, output source turn to utility side in case of battery voltage down to pre setting level

Utility Source

Solar Source

Utility Charger

I

UC

Solar Charger

I

SC

I

CHG

I

DISC

DC/AC Inverter

I

LOAD

AC Load Battery Bank

Priority Setting Combinations:

Charger Priority Output Source Priority

solar solar solar sbu

5

4) When utility and solar are not present, I

UC

=I

SC

=0, connected load will be powered from battery.

Utility Source

Solar Source

Utility Charger

I

UC

Solar Charger

I

SC

I

CHG

I

DISC

DC/AC Inverter

I

LOAD

Battery Bank AC Load

Priority Setting Combinations:

Charger Priority Output Source Priority

solar solar utility utility solar utility solar sbu

5) When utility and solar are presented, battery charged from utility, I

CHG

=I

UC

, load powered from utility

Priority Setting Combinations:

Charger Priority

utility

Output Source Priority

utility

6

6) When utility and solar are presented, battery charged from solar, I

CHG

=I

SC

, load powered from utility, Max.

I

SC

goes up to 25Amp if solar panel with enough energy. Charger source will be turned to utility side in case solar panel without enough energy.

Priority Setting Combinations:

Charger Priority Output Source Priority

solar utility

7

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’s manual x 1

 Communication cable 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. 10 cm to the side and approx. 50 cm above and below the unit.

 The ambient temperature should be between 0°C and 55°C to ensure optimal operation.

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

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

Install the unit by screwing three screws.

 

10cm

10cm

8

Battery Connection

CAUTION: To 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 beaker size.

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

Typical

Amperage

Battery capacity

1~3 m one-way

Ring Type for Cable

Terminal *

Torque value

1KVA KST: RNBS5.5-6 2~ 3 Nm

2KVA 66A 100AH 2~ 3 Nm

3KVA 100A

100AH

200AH

2~ 3 Nm

*NOTE: Use recommended or equivalent terminal.

Please follow below steps to implement battery connection:

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

2. 1KVA/2KVA/3KVA models support 24VDC system. Connect all battery packs as below chart. It’s suggested to connect at least 100Ah capacity battery for each.

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 on the inverter and make sure the bolts are tightened to a 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.

9

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 10A for 1KVA, 20A for 2KVA, 32A 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 AWG no. Torque

1KVA

2KVA

16 AWG

14 AWG

0.5~ 0.6 Nm

0.8~ 1.0 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 1K/2K/3KVA. And shorten phase L and neutral N conductor 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.

L→LINE (brown or black)

→Ground (yellow-green)

N→Neutral (blue)

10

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.

L→LINE (brown or black)

→Ground (yellow-green)

N→Neutral (blue)

5. Make sure the wires are securely connected.

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.

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.

Model Typical Amperage Cable Size Torque

1KVA/2KVA/3KVA 25A 12 Nm

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.

11

Final Assembly

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

Communication Connection

This inverter/charger is equipped with a communication port to communicate with a PC with corresponding software. Please use supplied communication cable to connect to RS-232 of this inverter and RS-232 port of the PC. Please access software download site to download the monitoring software in your PC. Software download website: www.power-software-download.com/watchpower.html. For the detailed software operation, please check user manual of software.

12

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 available in bypass mode

Flashing Output is powered by battery in inverter mode

Solid On Battery is fully charged

Green

Red

Function Keys

Function Key Description

ESC Exit setting mode

Flashing Battery is charging.

Solid On Fault mode

Flashing Warning mode

UP To selection

ENTER To confirm the selection in setting mode or enter setting mode

13

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 and load in

Watt.

Battery Information

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

In AC mode, it will present battery charging status.

Status Battery voltage

<2V/cell

Constant

Current mode /

Constant

Voltage mode

2 ~ 2.083V/cell

2.083 ~ 2.167V/cell

> 2.167 V/cell

Floating mode. Batteries are fully charged.

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.

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

4 bars will be on.

14

In battery mode, it will present battery capacity.

Load Percentage Battery Voltage

< 1.717V/cell

LCD Display

1.717V/cell ~ 1.8V/cell

Load >50%

1.8 ~ 1.883V/cell

> 1.883 V/cell

< 1.817V/cell

1.817V/cell ~ 1.9V/cell

50%> Load > 20%

1.9 ~ 1.983V/cell

> 1.983

< 1.867V/cell

1.867V/cell ~ 1.95V/cell

Load < 20%

1.95 ~ 2.033V/cell

> 2.033

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.

Mute Operation

Indicates the DC/AC inverter circuit is working.

Indicates unit alarm is disabled.

15

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

Solar first: Utility first (default):

01 Output source priority

Sbu priority:

1KVA:

10A: 20A(default):

02 Maximum charging current

2KVA/ 3KVA:

20A: 30A(default):

03 AC input voltage range

04 Power saving mode

Appliances(default): UPS:

Saving disable(default): Saving mode enable:

AGM(default): Flooded:

06

07

Auto restart when overload occurs

Auto restart when over temperature occurs

Restart disable(default): Restart enable:

Restart disable(default): Restart enable:

50Hz(default): 60Hz:

16

12

Pre setting voltage back to utility side for sbu priority

22.0V:

24.0V:

22.5V:

23.0V(default): 23.5V:

24.5V:

25.0V: 25.5V:

Solar first: Utility first(default):

16 Charger source priority

Alarm on(default): Alarm off:

Backlight on(default): Backlight off:

22

Beeps while primary source is interrupted

Alarm on(default):

Record enable: code

Alarm off:

Record disable(default):

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, input frequency, battery voltage, PV voltage, charging current, output voltage and load in Watt.

Selectable information LCD display

Input Voltage=230V, output voltage=230V

Input voltage/Output voltage (Default)

17

Input frequency/Output frequency

Battery voltage/Output voltage

Input frequency=50Hz, Output frequency=50Hz

Battery voltage=25.5V

PV voltage=60V, Load percent=70%

PV voltage/Load percentage

Current ≧ 10A

Charging current/Output voltage

Current < 10A

Input voltage/Load in VA

When load is lower than 1kVA, load in VA will presents 350V as below.

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

VA will presents 1.5kVA as below:

18

Input voltage/Load in Watt

When load is lower than 1kW, load in W will present 270W as below:

When load is larger than 1kW (≧1KW), load in W will present 1.2kW as below.

Main CPU version 00014.04

Main CPU version checking

Secondary CPU version checking

Secondary CPU version 00003.03

19

Operating Mode Description

Operation mode Description LCD display

Charging by utility

Standby mode/ Fault mode/

Power saving mode

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

Charging by PV

No charging

Charging by PV

Line Mode

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

Charging by utility

Battery Mode

Power from battery and PV power.

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

Power from battery only.

20

03

04

05

06

07

08

09

11

Fault Reference Code

Fault Code

01 Fan is locked

Fault Event

Battery voltage is too high

Battery voltage is too low

Output short circuited or Over temperature

Output voltage is abnormal

Over load time out

Bus voltage is too high

Bus soft start failed

Main relay failed

Icon on

21

12

13

14

Warning Indicator

01

03

Warning

Code

Warning Event

Fan is locked

Battery is over charged

07 Overload

Audible Alarm

Beep three times every second

Beep once every 1second

Beep once every 1 second

Beep once every 0.5 second

Icon flashing

MPPT Stop charging as battery too low

MPPT charger PV voltage high loss

MPPT charger overload fault

22

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

1KVA 2KVA

Sinusoidal (utility or generator)

3KVA

230Vac

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

Line mode: Circuit Breaker

Battery mode: Electronic Circuits

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

10ms typical, 12ms maximum @50Hz (UPS);

20ms typical, 25ms maximum @50Hz (Appliances)

Power Limitation

23

Table 2 Invert Mode Specifications

INVERTER MODEL

Rated Output Power

Output Voltage Waveform

Output Voltage Regulation

Output Frequency

Peak Efficiency

Overload Protection

Surge Capacity

Nominal DC Input Voltage

Cold Start Voltage

Low DC Warning Voltage

@ load < 20%

@ 20% ≤ load < 50%

@ load ≥ 50%

Low DC Warning Return Voltage

@ load < 20%

@ 20% ≤ load < 50%

@ load ≥ 50%

Low DC Cut-off Voltage

@ load < 20%

@ 20% ≤ load < 50%

@ load ≥ 50%

High DC Cut-off Voltage

DC Voltage Accuracy

No Load Power Consumption

Saving Mode Power Consumption

1KVA 2KVA 3KVA

1KVA/0.8KW 2KVA/1.6KW 3KVA/2.4KW

Pure Sine Wave

230Vac±5%

50Hz

90% 93%

[email protected]≥150% load; [email protected]%~150% load

2* rated power for 5 seconds

24Vdc

23.0Vdc

22.0Vdc

21.4Vdc

20.2Vdc

23.0Vdc

22.4Vdc

21.2Vdc

21.0Vdc

20.4Vdc

19.2Vdc

30Vdc

+/-0.3% @ no load

<20W

<10W

24

Table 3 Charge Mode Specifications

Charging Algorithm

Utility Charging Mode

Charging Current (UPS)

Charging Floating Voltage

Solar Charging Mode

Charging Current (MPPT)

Rated Power

Efficiency

Max. PV Array Open Circuit Voltage

PV Array MPPT Voltage Range

Min battery voltage for PV charge

Standby Power Consumption

DC Voltage Accuracy

Table 4 General Specifications

INVERTER MODEL

Safety Certification

Operating Temperature Range

Storage temperature

Dimension (D*W*H), mm

Net Weight, kg

3-Step

27Vdc

25Amp

600W

98.0% max.

75V max.

30V~66V

17Vdc

2W

+/-0.3%

1KVA 2KVA

CE

3KVA

0°C to 55°C

-15°C~ 60°C

128 x 272 x 355

7.4 7.6 8.0

25

Charging Controls

Voltage Setting

Charging Curve

Battery Type

Boost CC, CV Float

24 24

Flooded 29.2 27.0

AGM / Gel 28.2 27.0

Battery Voltage, per cell

Charging Current, %

2.43Vdc (2.35Vdc)

2.25Vdc

Voltage

100%

50%

T0 T1

T1 = 10* T0, minimum 10mins, maximum 8hrs

Bulk

(Constant Current)

Absorption

(Constant Voltage)

Maintenance

(Floating)

Current

Time

26

TROUBLE SHOOTING

Problem

Unit shuts down automatically during startup process.

No response after power on.

Mains exist but the unit works in battery mode.

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

Green LED is flashing.

Insufficient quality of AC power

(Shore or Generator)

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 check if input voltage range setting is correct

(UPSAppliance)

Change output source priority to Utility first.

When the unit is turned on, internal relay is switched on and off repeatedly.

LCD display and LEDs are flashing.

Battery is disconnected.

Buzzer beeps continuously and red LED is on.

Green LED is flashing.

Fault code 07.

Fault code 05.

Fault code 02.

Fault code 03.

Fault code 01.

Fault code 06.

Set Solar power as the priority of output source

Check if battery wires are connected well.

Overload error. The inverter is loaded with more than 110% load and time is up

Output short circuited.

Temperature of internal converter component is over 120°C.

Internal Inverter component over

100°C

Battery is over charged.

The battery voltage is too high.

Fan fault

Output abnormal (Inverter voltage below than 190Vac or is higher than 260Vac)

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

Fault code 08.

Fault code 09.

Internal components failed. Return to repair center

27

Appendix: Approximate Back-up Time Table

Model

1KVA

Load (VA) Backup Time @24Vdc 100Ah (min) Backup Time @24Vdc 200Ah (min)

200 766 1610

400 335

600 198

800 139

1000 112

766

503

339

269

Model

2KVA

Load (VA) Backup Time @ 24Vdc 100Ah (min) Backup Time @ 24Vdc 200Ah (min)

200 766

400 335

600 198

800 139

1000 112

1200 95

1400 81

1600 62

1800 55

2000 50

1610

766

503

339

269

227

176

140

125

112

Model

3KVA

Load (VA) Backup Time @ 24Vdc 100Ah (min) Backup Time @ 24Vdc 200Ah (min)

300 449 1100

600 222 525

900 124

1200 95

1500 68

1800 56

2100 48

2400 35

2700 31

303

227

164

126

108

94

74

3000 28 67

Note: Backup time depends on the quality of the battery, age of battery and type of battery.

Specifications of batteries may vary depending on different manufacturers.

28

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