CROWN Xavier 3KW Solar Inverter User Manual

: June 13, 2024
: CROWN

Table of Contents

Xavier 3KW Solar Inverter
Product Information
Xavier 3KW Inverter/Charger

Xavier 3KW Solar Inverter

Product Information

Xavier 3KW Inverter/Charger

Version: 1.0

About This Manual

Purpose: This manual describes the assembly,
installation, operation, and troubleshooting of the Xavier 3KW
Inverter/Charger. It is important to read this manual carefully
before installations and operations. Please 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. It is crucial to read and keep this
manual for future reference.

Before using the unit, read all instructions and cautionary
markings on the unit, the batteries, and all appropriate sections
of this manual.
CAUTION: To reduce the risk of injury, charge
only deep-cycle lead acid type rechargeable batteries. Using other
types of batteries may cause bursting, leading to personal injury
and damage.

Product Usage Instructions

To use the Xavier 3KW Inverter/Charger, follow these
instructions:

Read the entire manual carefully before proceeding with
installation and operation.
Ensure that all safety instructions and cautionary markings are
understood and followed.
Use only deep-cycle lead acid type rechargeable batteries with
the inverter/charger. Using other battery types can be dangerous
and may cause damage.
Follow the provided assembly instructions for proper
installation of the unit.
Connect the appropriate wiring according to the guidelines
provided in the manual.
Refer to the operation section of the manual for detailed
instructions on how to use the inverter/charger.
Maintain proper clearance and perform regular maintenance as
described in the manual, especially regarding the anti-dust
kit.
If any issues or troubleshooting is required, refer to the
troubleshooting section of the manual for guidance.
Keep the manual for future reference and follow all safety
instructions during use.

USER MANUAL Xavier 3KW
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
INSTALLATION ………………………………………………………………………………………………………………………………… 4
Unpacking and Inspection……………………………………………………………………………………………………………….. 4 Preparation …………………………………………………………………………………………………………………………………… 4 Mounting the Unit …………………………………………………………………………………………………………………………… 4 Battery Connection ………………………………………………………………………………………………………………………… 5 AC Input/Output Connection ……………………………………………………………………………………………………………. 7 PV Connection ………………………………………………………………………………………………………………………………. 8 Final Assembly………………………………………………………………………………………………………………………………. 9
OPERATION…………………………………………………………………………………………………………………………………… 10
Power ON/OFF ……………………………………………………………………………………………………………………………. 10 Operation and Display Panel …………………………………………………………………………………………………………. 10 LCD Display Icons ……………………………………………………………………………………………………………………….. 11 LCD Setting…………………………………………………………………………………………………………………………………. 13 Display Setting …………………………………………………………………………………………………………………………….. 17 Operating Mode Description ………………………………………………………………………………………………………….. 21 Battery Equalization Description …………………………………………………………………………………………………….. 23 Fault Reference Code…………………………………………………………………………………………………………………… 25 Warning Indicator …………………………………………………………………………………………………………………………. 25
CLEARANCE AND MAINTENANCE FOR ANTI-DUST KIT…………………………………………………………………. 26
Overview …………………………………………………………………………………………………………………………………….. 26 Clearance and Maintenance ………………………………………………………………………………………………………….. 26
SPECIFICATIONS …………………………………………………………………………………………………………………………… 27
Table 1 Line Mode Specifications ……………………………………………………………………………………………………. 27 Table 2 Inverter Mode Specifications ………………………………………………………………………………………………. 28 Table 3 Charge Mode Specifications ……………………………………………………………………………………………….. 29 Table 4 General Specifications ……………………………………………………………………………………………………….. 29
TROUBLE SHOOTING ……………………………………………………………………………………………………………………. 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 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. One piece of 150A fuse is 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. 14. WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single crystalline, poly crystalline with class A-rated and CIGS modules. To avoid any malfunction, do not connect any PV modules with possible current leakage to the inverter. For example, grounded PV modules will cause current leakage to the inverter. When using CIGS modules, please be sure NO grounding. 15. CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will cause damage on inverter when lightning occurs on PV modules.
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 Inverter running without battery 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 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. RS-232 communication port
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 Communication cable x 1
Preparation
Before connecting all wirings, please take off bottom cover by removing 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 0°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 two screws. It’s recommended to use M4 or M5 screws.

Battery Connection
This model can be operated without battery connection. Connect to battery if necessary. 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.

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 as below.

Recommended battery cable size:

Model

Wire Size

Xavier 3KW

1 x 2AWG

Cable (mm2) 35

Torque valuemax 2 Nm

Please follow below steps to implement battery connection: 1. For Xavier 3KW models, assemble battery ring terminal based on recommended battery cable and terminal
size. Recommended dimensions for ring terminal is D (8.4 mm) and L (39.2 mm).

5

2. Connect all battery packs as below chart. It is recommend to connect at least 100Ah capacity battery.
3KVA
3. For Xavier 3KW model, apply ring terminals to battery wires and secure it to the battery terminal block with the bolts properly tightened. Refer to battery cable size for torque value. Make sure polarity at both the battery and the inverter is correctly connected and ring terminals are secured to the battery terminals.
WARNING: Shock Hazard Installation must be performed with care due to high battery voltage in series. CAUTION!! Do not place anything between inverter terminals and the ring terminals. Otherwise, overheating may occur. CAUTION!! Do not apply anti-oxidant substance on the terminals before terminals are securely tightened. 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 (-).
6

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. 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

Cable (mm2)

Torque Value

Xavier 3KW

14 AWG

2.5

0.6 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) LLINE (brown or black) NNeutral (blue)

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) LLINE (brown or black) NNeutral (blue)

5. Make sure the wires are securely connected. 7

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

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.

Wire Size

Cable (mm2)

Torque valuemax

1 x 12AWG

4

1.2 Nm

WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single crystalline, poly crystalline with class A-rated and CIGS modules. To avoid any malfunction, do not connect any PV modules with possible current leakage to the inverter. For example, grounded PV modules will cause current leakage to the inverter. When using CIGS modules, please be sure NO grounding.

CAUTION: It’s requested to use PV junction box with surge protection. Otherwise, it will cause damage on inverter when lightning occurs on PV modules.

PV Module Selection: When selecting proper PV modules, please be sure to consider below parameters: 1. Open circuit Voltage (Voc) of PV modules not exceeds max. PV array open circuit voltage of inverter. 2. Open circuit Voltage (Voc) of PV modules should be higher than min. battery voltage.

INVERTER MODEL

Xavier 3KW

Max. PV Array Open Circuit Voltage

450Vdc

PV Array MPPT Voltage Range

60~400Vdc

Take 325Wp PV module as an example. After considering above two parameters, the recommended module

configurations are listed as below table.

Solar Panel Spec. (reference) – 325Wp – Vmp: 33.6Vdc

SOLAR INPUT (Min in serial: 2 pcs, max. in serial: 10 pcs)

Q’ty of Total input

panels

power

– Imp: 9.68A – Voc: 41.1Vdc – Isc: 10.2A – Cells: 120

2 pcs in serial 4 pcs in serial 8 pcs in serial 10 pcs in serial

2 pcs 4 pcs 8 pcs 10 pcs

650W 1300W 2600W 3000W

PV Module Wire Connection Please follow below steps to implement PV module connection: 1. Remove insulation sleeve 10 mm for positive and negative conductors. 2. Suggest to put bootlace ferrules on the end of positive and negative wires with a
proper crimping tool. 3. Check correct polarity of wire connection from PV modules and PV input
connectors. Then, connect positive pole (+) of connection wire to positive pole (+) of PV input connector. Connect negative pole (-) of connection wire to negative pole (-) of PV input connector. Screw two wires tightly in clockwise direction. Recommended tool: 4mm blade screwdriver

8

Final Assembly
After connecting all wirings, please put bottom cover back by screwing screws as shown below.
9

OPERATION
Power ON/OFF

Side view of unit 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

Function Keys Function Key ESC UP DOWN ENTER

Description To exit setting mode To go to previous selection To go to next selection To confirm the selection in setting mode or enter setting mode

10

LCD Display Icons

Icon
Input Source Information Indicates the AC input. Indicates the PV input

Function description

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

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% in battery mode and charging status in line mode.

In AC mode, it will present battery charging status.

Status

Battery voltage

LCD Display

<2V/cell

Constant Current mode / Constant

2 ~ 2.083V/cell 2.083 ~ 2.167V/cell

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.

Voltage mode > 2.167 V/cell

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

Floating mode. Batteries are fully charged.

4 bars will be on.

11

In battery mode, it will present battery capacity.

Load Percentage

Battery Voltage

< 1.85V/cell

Load >50%

1.85V/cell ~ 1.933V/cell 1.933V/cell ~ 2.017V/cell

LCD Display

2.017V/cell

Load < 50%

< 1.892V/cell 1.892V/cell ~ 1.975V/cell 1.975V/cell ~ 2.058V/cell

2.058V/cell

Load Information Indicates overload.

Indicates the load level by 0-24%, 25-49%, 50-74% and 75-100%.

0%~24%

25%~49%

50%~74%

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 DC/AC inverter circuit is working.
Mute Operation Indicates unit alarm is disabled.

12

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:

Program

Description

00

Exit setting mode

Selectable option Escape

Utility first (default)

Solar first

Output source priority:

01

To configure load power

source priority

SBU priority

Maximum charging current:

To configure total charging current for solar and utility 60A (default)

02

chargers.

(Max. charging current =

utility charging current +

solar charging current)

Appliances (default)

03

AC input voltage range

UPS

05

Battery type

AGM (default)

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, Utility energy will supply power to the loads at the same time. 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 battery voltage drops to either low-level warning voltage or the setting point in program 12.
Setting range is from 10A to 120A. Increment of each click is 10A.
If selected, acceptable AC input voltage range will be within 90-280VAC. If selected, acceptable AC input voltage range will be within 170-280VAC. Flooded

13

User-Defined

If “User-Defined” is selected,

battery charge voltage and low DC

cut-off voltage can be set up in

program 26, 27 and 29.

Restart disable (default)

Restart enable

06

Auto restart when overload occurs

07

Auto restart when over temperature occurs

Restart disable (default)

Restart enable

09

Output frequency

50Hz (default)

60Hz

220V

230V (default)

10

Output voltage

240V

Maximum utility charging current

Note: If setting value in

30A (default)

11

program 02 is smaller than

that in program in 11, the

inverter will apply charging

current from program 02 for

utility charger.

23.0V (default)

Setting voltage point back

12

to utility source when selecting “SBU” (SBU

priority) in program 01.

Setting range is 2A, then from 10A to 120A. Increment of each click is 10A.
Setting range is from 22V to 25.5V. Increment of each click is 0.5V.

Battery fully charged

27V (default)

Setting voltage point back to battery mode when 13 selecting “SBU” (SBU priority) in program 01.

Setting range is from 24V to 29V. Increment of each click is 0.5V.

If this inverter/charger is working in Line, Standby or Fault mode,

charger source can be programmed as below:

Charger source priority:

Utility first

Utility will charge battery as first

16

To configure charger

priority.

source priority

Solar energy will charge battery

only when utility power is not

available.

14

Solar first

Solar energy will charge battery as

first priority.

Utility will charge battery only

when solar energy is not available.

Solar and Utility (default) Solar energy and utility will charge

Charger source priority:

battery at the same time.

16

To configure charger

source priority

Only Solar

Solar energy will be the only

charger source no matter utility is

available or not.

If this inverter/charger is working in Battery mode, only solar

energy can charge battery. Solar energy will charge battery if it’s

available and sufficient.

Alarm on (default)

Alarm off

18

Alarm control

19

Auto return to default display screen

20

Backlight control

Return to default display screen (default)
Stay at latest screen Backlight on (default)

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 off

Alarm on (default)

22

Beeps while primary source is interrupted

Alarm off

Overload bypass:

Bypass disable (default)

Bypass enable

When enabled, the unit will

23

transfer to line mode if

overload occurs in battery

mode.

Record enable (default)

Record disable

25

Record Fault code

26

Bulk charging voltage (C.V voltage)

Default setting: 28.2V

Default setting: 27.0V

27

Floating charging voltage

15

Default setting: 21.0V

29

Low DC cut-off voltage

30

Battery equalization

If self-defined is selected in program 5, this program can be set

up. Setting range is from 21.0V to 24.0V for Xavier 3KW 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.

Battery equalization

Battery equalization disable

(default)

If “Flooded” or “User-Defined” is selected in program 05, this program can be set up.
Default setting: 29.2V

31

Battery equalization voltage

33

Battery equalized time

Setting range is from 25.0V to 31.5V for Xavier 3KW model.

Increment of each click is 0.1V.

60min (default)

Setting range is from 5min to

900min. Increment of each click is

5min.

120min (default)

34

Battery equalized timeout

35

Equalization interval

30days (default)

Setting range is from 5min to 900 min. Increment of each click is 5 min.
Setting range is from 0 to 90 days. Increment of each click is 1 day

Enable

Disable (default)

36

Equalization activated immediately

If equalization function is enabled in program 30, this program can be set up. If “Enable” is selected in this program, it’s to activate battery equalization immediately and LCD main page will shows
” “. If “Disable” is selected, it will cancel equalization function until next activated equalization time arrives based on program 35
setting. At this time, ” ” will not be shown in LCD main page.

16

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, PV voltage, charging current, charging power, battery voltage, output voltage, output frequency, load percentage, load in Watt, load in VA, load in Watt, DC discharging current, main CPU Version.

Selectable information

LCD display Input Voltage=230V, output voltage=230V

Input voltage/Output voltage (Default Display Screen)

Input frequency

Input frequency=50Hz

PV voltage

PV voltage=260V

PV current

PV current = 2.5A

PV power

PV power = 500W

17

Charging current Charging power

AC and PV charging current=50A PV charging current=50A AC charging current=50A AC and PV charging power=500W PV charging power=500W AC charging power=500W

18

Battery voltage and output voltage Output frequency Load percentage

Battery voltage=25.5V, output voltage=230V
Output frequency=50Hz
Load percent=70%
When connected load is lower than 1kVA, load in VA will present xxxVA like below chart.

Load in VA

When load is larger than 1kVA (1KVA), load in VA will present x.xkVA like below chart.

19

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

Load in Watt

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

Battery voltage=25.5V, discharging current=1A Battery voltage/DC discharging current

Main CPU version checking

Main CPU version 00014.04

20

Operating Mode Description

Operation mode

Description

LCD display Charging by utility and PV energy.

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

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

Charging by utility. Charging by PV energy.

No charging. Charging by utility and PV energy.

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

PV energy and utility can charge batteries.

Charging by utility. Charging by PV energy.

No charging.

21

Operation mode

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

LCD display Charging by utility and PV energy.

Charging by utility.

Line Mode

If “solar first” is selected as output source priority and solar energy is not sufficient to
provide the load, solar energy and the utility will provide the loads and charge the battery at the
same time.

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

If “solar first” is selected as output source priority and battery is not connected, solar
energy and the utility will provide the loads.

Power from utility.

Battery Mode

Power from battery and PV energy.

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

PV energy will supply power to the loads and charge battery at the same time.

22

Battery Mode

Power from battery only.

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

Power from PV energy only.

Battery Equalization Description
Equalization function is added into charge controller. It reverses the buildup of negative chemical effects like stratification, a condition where acid concentration is greater at the bottom of the battery than at the top. Equalization also helps to remove sulfate crystals that might have built up on the plates. If left unchecked, this condition, called sulfation, will reduce the overall capacity of the battery. Therefore, it’s recommended to equalize battery periodically.
How to Apply Equalization Function You must enable battery equalization function in monitoring LCD setting program 30 first. Then, you may apply this function in device by either one of following methods: 1. Setting equalization interval in program 35. 2. Active equalization immediately in program 36.
When to Equalize In float stage, when the setting equalization interval (battery equalization cycle) is arrived, or equalization is active immediately, the controller will start to enter Equalize stage.

Equalize charging time and timeout In Equalize stage, the controller will supply power to charge battery as much as possible until battery voltage raises to battery equalization voltage. Then, constant-voltage regulation is applied to maintain battery voltage at the battery equalization voltage. The battery will remain in the Equalize stage until setting battery equalized
23

time is arrived.
However, in Equalize stage, when battery equalized time is expired and battery voltage doesn’t rise to battery equalization voltage point, the charge controller will extend the battery equalized time until battery voltage achieves battery equalization voltage. If battery voltage is still lower than battery equalization voltage when battery equalized timeout setting is over, the charge controller will stop equalization and return to float stage.
24

Fault Reference Code

Fault Code 01

Fault Event Fan is locked when inverter is off.

02

Over temperature or NTC is not connected well.

03

Battery voltage is too high

04

Battery voltage is too low

05

Output short circuited or over temperature is detected by internal converter components.

06

Output voltage is too high.

07

Overload time out

08

Bus voltage is too high

09

Bus soft start failed

51

Over current or surge

52

Bus voltage is too low

53

Inverter soft start failed

55

Over DC voltage in AC output

57

Current sensor failed

58

Output voltage is too low

59

PV voltage is over limitation

Warning Indicator

Warning Code

Warning Event

01

Fan is locked when inverter is on.

02

Over temperature

Audible Alarm
Beep three times every second
None

03

Battery is over-charged

Beep once every second

04

Low battery

Beep once every second

Icon on Icon flashing

07

Overload

Beep once every 0.5 second

10

Output power derating

Beep twice every 3 seconds

15

PV energy is low.

Beep twice every 3 seconds

16

High AC input (>280VAC) during BUS soft start

None

Battery equalization

None

Battery is not connected

None 25

CLEARANCE AND MAINTENANCE FOR ANTI-DUST KIT
Overview
Every inverter is already installed with anti-dusk kit from factory. Inverter will automatically detect this kit and activate internal thermal sensor to adjust internal temperature. This kit also keeps dusk from your inverter and increases product reliability in harsh environment.
Clearance and Maintenance
Step 1: Please loosen the screw in counterclockwise direction on the top of the inverter.
Step 2: Then, dustproof case can be removed and take out air filter foam as shown in below chart.
Step 3: Clean air filter foam and dustproof case. After clearance, re-assemble the dust-kit back to the inverter. NOTICE: The anti-dust kit should be cleaned from dust every one month.
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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

Xavier 3KW Sinusoidal (utility or generator)
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 Circuit Breaker >95% ( Rated R load, battery full charged ) 10ms typical (UPS); 20ms typical (Appliances)
Output Power

Output power derating: When AC input voltage drops to 170V, the output power will be derated.

Rated Power 50% Power

90V

170V

280V Input Voltage

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Table 2 Inverter 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 < 50% @ load 50% Low DC Warning Return Voltage @ load < 50% @ load 50% Low DC Cut-off Voltage @ load < 50% @ load 50% High DC Recovery Voltage High DC Cut-off Voltage No Load Power Consumption

Xavier 3KW 3KVA/3KW
Pure Sine Wave 230Vac±5% 50Hz 93%
5s@130% load; 10s@105%~130% load 2* rated power for 5 seconds 24Vdc 23.0Vdc
23.0Vdc 22.0Vdc
23.5Vdc 23.0Vdc
21.5Vdc 21.0Vdc
31Vdc 32Vdc <35W

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Table 3 Charge Mode Specifications

Utility Charging Mode

INVERTER MODEL

Charging Algorithm

AC Charging Current (Max)

Bulk Charging Flooded Battery

Voltage

AGM / Gel Battery

Floating Charging Voltage

Charging Curve

MPPT Solar Charging Mode
INVERTER MODEL Max. PV Array Power Nominal PV Voltage Start-up Voltage PV Array MPPT Voltage Range Max. PV Array Open Circuit Voltage Max. Input Current Max Charging Current
Table 4 General Specifications
INVERTER MODEL Safety Certification Operating Temperature Range Storage temperature Humidity Dimension (DWH), mm Net Weight, kg

Xavier 3KW

3-Step

80Amp (@VI/P=230Vac)

29.2

28.2

Battery Voltage, per cell

27Vdc

2.43Vdc (2.35Vdc) 2.25Vdc

Charging Current, %
Voltage 100%

T0

T1

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

Bulk (Constant Current)

Absorption (Constant Voltage)

50%

Current
Maintenance (Floating)

Time

Xavier 3KW
3000W 240Vdc 70Vdc +/- 10Vdc 60~400Vdc 450Vdc
13Amp 100Amp

Xavier 3KW CE
-10°C to 50°C -15°C~ 60°C 5% to 95% Relative Humidity (Non-condensing) 100 x 288 x 390
7.5

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TROUBLE SHOOTING

Problem
Mains exist but the unit works in battery mode.
When the unit is turned on, internal relay is switched on and off repeatedly.
Buzzer beeps continuously and red LED is on.

LCD/LED/Buzzer Input voltage is displayed as 0 on the LCD and green LED is flashing.
Green LED is flashing.
Green LED is flashing. LCD display and LEDs are flashing
Fault code 07
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 59

Explanation / Possible cause
Input protector is tripped
Insufficient quality of AC power. (Shore or Generator)
Set “Solar First” as the priority of output source.
Battery is disconnected.
Overload error. The inverter is overload 105% and time is up. If PV input voltage is higher than specification, the output power will be derated. At this time, if connected loads is higher than derated output power, it will cause overload.
Output short circuited.
Internal temperature of inverter component is beyond spec. (check local agent for the details.) Battery is over-charged.
The battery voltage is too high.
Fan fault Output abnormal (Inverter voltage below than 190Vac or is higher than 260Vac) Internal components failed. Over current or surge. Bus voltage is too low. Output voltage is unbalanced. PV input voltage is beyond the specification.

What to do
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. (UPSAppliance) Change output source priority to Utility first.
Check if battery wires are connected well.
Reduce the connected load by switching off some equipment.
Reduce the number of PV modules in series or the connected load.
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.
Reduce the number of PV modules in series.

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