MPP LV6548 Solar Charging Inverter User Manual

User Manual for MPP models including: LV6548, Solar Charging Inverter

USER’S MANUAL

Richard

USER'S MANUAL

PDF User's manual

Version: 1.0.

LV6548 Manual - Watts247.com

Wi-Fi PN number and enter default password “12345678”. Then, return to WatchPower APP and tap “. ” button when Wi-Fi module is connected successfully.

File Info : application/pdf, 77 Pages, 7.20MB

LV6548

User Manual
LV 6548 SOLAR 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 ............................................................................................................................ 6 PV Connection ................................................................................................................................................. 7 Final Assembly................................................................................................................................................. 9 Remote Display Panel Installation ................................................................................................................. 10 Communication Connection........................................................................................................................... 11 Dry Contact Signal ......................................................................................................................................... 12 BMS Communication ..................................................................................................................................... 12 OPERATION...................................................................................................................................................... 13 Power ON/OFF .............................................................................................................................................. 13 Inverter Turn-on ............................................................................................................................................. 13 Operation and Display Panel ......................................................................................................................... 13 LCD Display Icons ......................................................................................................................................... 14 LCD Setting.................................................................................................................................................... 16 LCD Display ................................................................................................................................................... 31 Operating Mode Description .......................................................................................................................... 36 Faults Reference Code .................................................................................................................................. 39 Warning Indicator ........................................................................................................................................... 40 BATTERY EQUALIZATION .............................................................................................................................. 41 SPECIFICATIONS ............................................................................................................................................. 42 Table 1 Line Mode Specifications ................................................................................................................... 42 Table 2 Inverter Mode Specifications ............................................................................................................. 43 Table 3 Charge Mode Specifications .............................................................................................................. 44 Table 4 General Specifications ....................................................................................................................... 45 TROUBLE SHOOTING ..................................................................................................................................... 46 Appendix I: Parallel function (Only for 7.2KW mode) .................................................................................. 47 Appendix II: BMS Communication Installation ............................................................................................. 61 Appendix III: The Wi-Fi Operation Guide in Remote Panel ......................................................................... 67

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 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.
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 required 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, combining functions of inverter, solar charger and battery charger to offer uninterruptible power support in a single package. The comprehensive LCD display offers user-configurable and easy-accessible button operations such as battery charging current, AC or solar charging priority, and acceptable input voltage based on different applications.
Features
Pure sine wave inverter Configurable color with the built-in RGB LED bar Built-in Wi-Fi for mobile monitoring (APP is required) Supports USB On-the-Go function Optional 12V DC output Built-in anti-dusk kit Detachable LCD control module with multiple communication ports for BMS (RS485, CAN-BUS, RS232) Configurable input voltage ranges for home appliances and personal computers via LCD control panel Configurable AC/PV output usage timer and prioritization Configurable AC/Solar charger priority via LCD control panel Configurable battery charging current based on applications via LCD control panel Compatible to utility mains 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 unit. It also required the following devices to have a complete running system:
Generator or Utility mains. PV modules Consult with your system integrator for other possible system architectures depending on your requirements.
This inverter can power various appliances in home or office environment, including motor-type appliances such as tube light, fan, refrigerator and air conditioners.
Figure 1 Basic hybrid PV System Overview
2

Product Overview

NOTE: For parallel installation and operation, please check Appendix I.

1. LCD display

12. Current sharing port

2. Status indicator

13. Parallel communication port

3. Charging indicator

14. Dry contact

4. Fault indicator

15. USB port as USB communication port and USB function port

5. Function buttons

16. BMS communication port: CAN, RS-485 or RS-232

6. Power on/off switch

17. Output source indicators (refer to OPERATION/Operation

7. AC input connectors

and Display Panel section for details) and USB function

8. AC output connectors (Load connection) setting reminder (refer to OPERATION/Function Setting for

9. PV connectors

the details)

10. Battery connectors

18. RS-232 communication port

11. Remote LCD module communication 19. RGB LED bar (refer to LCD Setting section for the details)

port

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:

Inverter unit Manual software CD RS-232 cable Parallel communication cable

Current sharing cable

DC Fuse

Cable gland x 4 pcs

PV connectors (2 sets)

Preparation
Before connecting all wirings, please take off bottom cover by removing five screws. When removing the bottom cover, be carefully to remove three cables 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. 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 right 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 four screws. It's recommended to use M4 or M5 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 LV 6548

Typical Amperage
153A

Battery capacity
250AH

Wire Size 1*2/0AWG

Cable mm2
67

Ring Terminal Dimensions
D (mm) L (mm)

8.4

Torque value
5 Nm

Please follow below steps to implement battery connection: 1. Assemble battery ring terminal based on recommended battery cable and terminal size. 2. Fix two cable glands into positive and negative terminals. 3. Insert the ring terminal of battery cable flatly into battery connector of inverter and make sure the nuts are
tightened with torque of 5 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.

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
5

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. 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

LV 6548

4 AWG

1.4~ 1.6Nm

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. Fix two cable glands into input and output sides. 4. 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.
5. 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)
6

6. 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 requires 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 be trigger overload fault and cut off output to protect your appliance but sometimes it still causes internal damage to the air conditioner.
PV Connection
CAUTION: Before connecting to PV modules, please install separately DC circuit breakers between inverter and PV modules. NOTE1: Please use 600VDC/30A circuit breaker. NOTE2: The overvoltage category of the PV input is II. Please follow the steps below to implement PV module connection:
WARNING: Because this inverter is non-isolated, only three types of PV modules are acceptable: single crystalline and 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 required to use PV junction box with surge protection. Otherwise, it will cause damage on inverter when lightning occurs on PV modules. Step 1: Check the input voltage of PV array modules. This system is applied with two strings of PV array. Please make sure that the maximum current load of each PV input connector is 18A. CAUTION: Exceeding the maximum input voltage can destroy the unit!! Check the system before wire connection.
Step 2: Disconnect the circuit breaker and switch off the DC switch.
Step 3: Assemble provided PV connectors with PV modules by the following steps. Components for PV connectors and Tools:
Female connector housing
Female terminal Male connector housing
Male terminal Crimping tool and spanner
7

Prepare the cable and follow the connector assembly process: Strip one cable 8 mm on both end sides and be careful NOT to nick conductors. Insert striped cable into female terminal and crimp female terminal as shown below. Insert assembled cable into female connector housing as shown below.
Insert striped cable into male terminal and crimp male terminal as shown below. Insert assembled cable into male connector housing as shown below.
Then, use spanner to screw pressure dome tightly to female connector and male connector as shown below.
Step 4: 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.

WARNING! For safety and efficiency, it's very important to use appropriate cables for PV module connection.

To reduce risk of injury, please use the proper cable size as recommended below.

Conductor cross-section (mm2)

AWG no.

4~6

10~12

CAUTION: Never directly touch the terminals of inverter. It might cause lethal electric shock.

Recommended Panel Configuration

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

1. Open circuit Voltage (Voc) of PV modules not to exceed maximum PV array open circuit voltage of the

inverter.

2. Open circuit Voltage (Voc) of PV modules should be higher than the start-up voltage.

INVERTER MODEL

LV 6548

Max. PV Array Power

8000W

Max. PV Array Open Circuit Voltage

250Vdc

PV Array MPPT Voltage Range

90Vdc~230Vdc

Start-up Voltage (Voc)

80Vdc

Recommended solar panel configuration:

Solar Panel Spec. (reference) - 330Wp - Vmp: 33.7Vdc - Imp: 9.79A - Voc: 39.61Vdc - Isc: 10.4A - Cells: 60

SOLAR INPUT 1

SOLAR INPUT 2

Min in series: 3pcs, per input Max. in series:6pcs, per input

3pcs in series

6pcs in series

6pcs in series, 2 strings

Q'ty of panels Total Input Power

3pcs 3pcs 6pcs 6pcs 12pcs 12pcs

990W 990W 1980W 1980W 3960W 3960W

6pcs in series, 2 strings

12pcs

3960W

6pcs in series, 2 strings 6pcs in series, 2 strings

24pcs

7920W

Final Assembly
After connecting all wirings, re-connect three cables and then put bottom cover back by screwing five screws as shown below.

Remote Display Panel Installation
The LCD module can be removable and installed in a remote location with an optional communication cable. Please take the follow steps to implement this remote panel installation. Step 1. Remove the screw on the bottom of LCD module and pull down the module from the case. Detach the cable from the original communication port. Be sure to replace the retention plate back to the inverter.
Step 2. Prepare your mounting holes in the marked locations as shown in the illustration below. The LCD module then can be securely mounted to your desired location.
Ø5-Ø9
Note: Wall installation should be implemented with the proper screws to the right.
M3
Step 3. After LCD module is installed, connect LCD module to the inverter with an optional RJ45 communication cable as shown below.
10

RS-232 communication to PC
USB communication to PC

Remote communication

BMS communication
Communication Connection
Serial Connection Please use the supplied serial cable to connect between the inverter and your PC. Install the monitoring software from the bundled CD and follow the on-screen instructions to complete your installation. For detailed software operation, refer to the software user manual on the bundled CD.
Wi-Fi Connection This unit is equipped with a Wi-Fi transmitter. Wi-Fi transmitter can enable wireless communication between off-grid inverters and monitoring platform. Users can access and control the monitored inverter with downloaded APP. You may find "WatchPower" app from the Apple® Store or "WatchPower Wi-Fi" in Google® Play Store. All data loggers and parameters are saved in iCloud. For quick installation and operation, please check Appendix III.

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 Power On

Unit is off and no output is powered.

Output is

Program 01 Battery voltage < Low DC

powered

set as USB warning voltage

from Battery (utility first) Battery voltage > Setting

power or

or SUB (solar value in Program 13 or

Solar energy. first)

battery charging reaches

floating stage

Program 01 is Battery voltage < Setting

set as SBU value in Program 12

(SBU priority) Battery voltage > Setting

value in Program 13 or

battery charging reaches

floating stage

Dry contact port:

NC & C Close

NO & C Open

Open

BMS Communication
It is recommended to purchase a special communication cable if you are connecting to Lithium-Ion battery banks. Please refer to Appendix II- BMS Communication Installation for details.

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 display panel) to turn on the unit.

Inverter Turn-on
After this inverter is turned on, WELCOME light show will be started with RGB LED BAR. It will slowly cycle through entire spectrum of nine colors (Green, Sky blue, Royal blue, Violet, Pink, Red, Honey, Yellow, Lime yellow) about 10-15 seconds. After initialization, it will light up with default color.
RGB LED BAR can light up in different color and light effects based on the setting of energy priority to display the operation mode, energy source, battery capacity and load level. These parameters such as color, effects, brightness, speed and so on can be configured through the LCD panel. Please refer to LCD settings for the details.

Operation and Display Panel
The operation and the LCD module, shown in the chart below, includes six indicators, six function keys, on/off switch and a LCD display to indicate the operating status and input/output power information.
Setting LED 2 LCD display

Setting LED 1 Function keys

Status indicators

Setting LED 3

Function keys On/off switch

Indicators LED Indicator Setting LED 1 Setting LED 2 Setting LED 3
Status indicators

Color Green Green Green
Green

Solid/Flashing Solid On Solid On Solid On Solid On Flashing

Messages Output powered by utility Output powered by PV Output powered by battery Output is available in line mode Output is powered by battery in battery mode

Green Red

Solid On Flashing Solid On Flashing

Battery is fully charged Battery is charging. Fault mode Warning mode

Function Keys Function Key
ESC

Description Exit the setting

USB function setting Timer setting for the Output source priority

Select USB OTG functions Setup the timer for prioritizing the output source

Timer setting for the Charger source Setup the timer for prioritizing the charger source
priority

Press these two keys at the time to switch RGB LED bar for

output source priority and battery discharge/charge status

Up Down

To last selection To next selection

Enter

To confirm/enter the selection in setting mode

LCD Display Icons

Icon

Function description

Input Source Information Indicates the AC input. Indicates the PV input Indicate input voltage, input frequency, PV voltage, charger current, charger power, battery voltage.
Configuration Program and Fault Information

Output Information

Indicates the setting programs.

Indicates the warning and fault codes.

Warning:

flashing with warning code.

Fault:

lighting with fault code

Indicate output voltage, output frequency, load percent, load in VA, load in Watt and discharging current.
14

Battery Information

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

When battery is charging, it will present battery charging status.

Status

Battery voltage <2V/cell

Constant Current mode / Constant

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

Voltage mode > 2.167 V/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.
Bottom three bars will be on and the top bar will
flash.

Floating mode. Batteries are fully charged.

4 bars will be on.

In battery mode, it will present battery capacity.

Load Percentage

Battery Voltage

LCD Display

< 1.85V/cell

Load >50%

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

> 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 solar charger circuit is working. Indicates the DC/AC inverter circuit is working. Indicates unit alarm is disabled. Indicates USB disk is connected. Indicates timer setting or time display

LCD Setting
General Setting
After pressing and holding " " button for 3 seconds, the unit will enter the Setup Mode. Press " " or " "

button to select setting programs. Press " " button to confirm you selection or "

" button to exit.

Setting Programs:

Program

Description

Selectable option Escape

Exit setting mode

Utility first (default)

Solar first

Output source priority:

To configure load power

source priority

SBU priority

Maximum charging current: 10A

To configure total charging

current for solar and utility

chargers.

(Max. charging current =

utility charging current +

solar charging current)

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. 20A

30A

40A

50A

60A (default)

70A

80A

Appliances (default)

If selected, acceptable AC input voltage range will be within 90-280VAC.

AC input voltage range

UPS

If selected, acceptable AC input voltage range will be within 170-280VAC.

AGM (default)

Flooded

Battery type

User-Defined Pylontech battery

If "User-Defined" is selected, battery charge voltage and low DC cut-off voltage can be set up in program 26, 27 and 29.
If selected, programs of 02, 26, 27 and 29 will be automatically set up. No need for further setting.

WECO battery Soltaro battery

If selected, programs of 02, 12, 26, 27 and 29 will be auto-configured per battery supplier recommended. No need for further adjustment.
If selected, programs of 02, 26, 27 and 29 will be automatically set up. No need for further setting.

Battery Type

LIb-protocol compatible battery

Select " LIb" if using Lithium battery compatible to Lib protocol. If selected, programs of 02, 26, 27 and 29 will be automatically set up. No need for further setting.

3rd party Lithium battery

If selected, programs of 02, 26, 27 and 29 will be automatically set up. No need for further setting. Please contact the battery supplier for installation procedure.

Restart disable (default)

Restart enable

Auto restart when overload occurs

Auto restart when over temperature occurs

Restart disable (default)

Restart enable

Output frequency

50Hz

60Hz (default)

110V

Output voltage

127V

20A

Maximum utility charging

current

40A

Note: If setting value in

program 02 is smaller than

that in program in 11, the

inverter will apply charging

current from program 02 for

utility charger.

60A

80A

120V (default)
10A 30A (default) 50A 70A

44V

45V

46V (default)

47V

Setting voltage point back

to utility source when selecting "SBU" (SBU

48V

49V

priority) in program 01.

50V

51V

Battery fully charged

48V

49V

Setting voltage point back

to battery mode when

selecting "SBU" (SBU

51V

priority) in program 01.

53V

50V 52V 54V (default)

55V

56V

57V

58V

Setting voltage point back

to battery mode when

selecting "SBU" (SBU

59V

60V

priority) in program 01.

61V

62V

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

charger source can be programmed as below:

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

battery at the same time.

Charger source priority:

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.
21

Alarm control

Alarm on (default)

Alarm off

Auto return to default display screen

Return to default display screen (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.

Stay at latest screen

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

Backlight control

Backlight on (default)

Backlight off

Alarm on (default)

Beeps while primary source is interrupted

Alarm off

Bypass disable (default)

Bypass enable

Overload bypass:

When enabled, the unit will

transfer to line mode if

overload occurs in battery

mode.

Record Fault code

Record enable (default)

Record disable

24V model default: 28.2V 48V model default: 56.4V

Bulk charging voltage (C.V voltage)

If self-defined is selected in program 5, this program can be set up. Setting range is from 25.0V to 31.0V for 24V model and 48.0V to 62.0V for 48V model. Increment of each click is 0.1V. 24V model default: 27.0V 48V model default: 54.0V

Floating charging voltage

When the inverter is operated in 3-phase application, set up

AC output mode *This setting is only

inverter to be operated in specific phase.

L1 phase:

L2 phase:

available when the inverter

is in standby mode (Switch

off).

L3 phase:

When the inverter is operation in split phase application, set up

inverter to be operated in specific phase.

L1 for split phase:

L2 for split phase:

(120° phase difference)

AC output mode

*This setting is only

available when the inverter

is in standby mode (Switch

off).

L2 for split phase:

(180° phase difference)

Low DC cut-off voltage:

24V model default: 22.0V 48V model default: 44.0V

If battery power is only

power source available,

inverter will shut down.

If PV energy and battery

power are available,

inverter will charge

battery without AC

output.

If PV energy, battery

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

power and utility are all available, inverter will transfer to line mode

up. Setting range is from 21.0V to 24.0V for 24V model and 42.0V to 48.0V for 48V model. Increment of each click is 0.1V. Low DC

and provide output

cut-off voltage will be fixed to setting value no matter what

power to loads.

percentage of load is connected.

Battery equalization

Battery equalization disable

(default)

Battery equalization

If "Flooded" or "User-Defined" is selected in program 05, this

program can be set up.

default: 58.4V

Setting range is from 48.0V to

62.0V. Increment of each click is

Battery equalization voltage

0.1V.

Battery equalized time

60min (default)

Setting range is from 5min to 900min. Increment of each click is 5min.

120min (default)

Battery equalized timeout

Equalization interval

30days (default)

Enable

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
Disable (default)

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 show

" ". If "Disable" is selected, it will cancel equalization function until next activated equalization time arrives based on program 35

setting. At this time, " Not reset(Default)

" will not be shown in LCD main page. Reset

Reset all stored data for PV

generated power and

output load energy

Enabled (default)

On/Off control for RGB LED

*It's necessary to enable

this setting to activate RGB

LED lighting function.

Low

Disable Normal (default)

Brightness of RGB LED

High

Low

Lighting speed of RGB LED

High

Normal (default)

Scrolling

Breathing

RGB LED effects

Solid on (Default)

C01: (Default)

C02:

Color combination of RGB Violet-White-Sky blue White-Yellow-Green

LED to show energy source Pink-Honey

Royal blue-Lime yellow

and battery

charge/discharge status:

Grid-PV-Battery

Battery

charge/discharge status

Enable (default) On/Off control for 12V DC 92 output

Erase all data log

Not reset (Default)

Disable Reset

3 minutes

5 minutes

10 minutes (default) Data log recorded interval

*The maximum data log

number is 1440. If it's over

1440, it will re-write the

first log.

30 minutes

20 minutes 60 minutes

Time setting Minute

For minute setting, the range is from 0 to 59.

Time setting Hour

For hour setting, the range is from 0 to 23.

Time setting Day

For day setting, the range is from 1 to 31.

Time setting Month

For month setting, the range is from 1 to 12.

Time setting Year

For year setting, the range is from 17 to 99.

Function Setting
There are three function keys on the display panel to implement special functions such as USB OTG, Timer setting for output source priority and timer setting for charger source priority.

1. USB Function Setting
Insert an OTG USB disk into the USB port ( ). Press and hold " " button for 3 seconds to enter USB Setup Mode. These functions including inverter firmware upgrade, data log export and internal parameters re-write from the USB disk.

Procedure Step 1: Press and hold "

" button for 3 seconds to enter USB function setting mode.

Step 2: Press " ", " " or " (detail descriptions in Step 3)..

" button to enter the selectable setting programs

LCD Screen

Step 3: Please select setting program by following the procedure.

Program#

Operation Procedure

LCD Screen

This function is to upgrade inverter firmware. If firmware upgrade is needed, please check with

Upgrade

your dealer or installer for detail instructions.

firmware

This function is to over-write all parameter settings (TEXT file) with settings in the On-The-Go

USB disk from a previous setup or to duplicate inverter settings. Please check with your dealer

Re-write

or installer for detail instructions.

internal

parameters

By pressing " " button to export data log from the inverter to USB disk. If

:
Export data log

the selected function is ready, LCD will display " confirm the selection again.

". Press " " button to

Press " " button to select "Yes", LED 1 will flash once every second

during the process. It will only display
this action is complete. Then, press " screen.

and all LEDs will be on after " button to return to main

Or press " " button to select "No" to return to main screen. If no button is pressed for 1 minute, it will automatically return to main screen.

Error message for USB On-the-Go functions: Error Code Messages
No USB disk is detected.

USB disk is protected from copy.

Document inside the USB disk with wrong format.

If any error occurs, error code will only show 3 seconds. After three seconds, it will automatically return to display screen.

2. Timer Setting for Output Source Priority

This timer setting is to set up the output source priority per day.

Procedure

Step 1: Press and hold " source priority.

" button for 3 seconds to enter Timer Setup Mode for output

Step 2: Press " ", " descriptions in Step 3).

" or "

" button to enter the selectable programs (detail

LCD Screen

Step 3: Please select setting program by following each procedure.

Program#

Operation Procedure

Press " " button to set up Utility First Timer. Press " " button to select staring time. Press " " or " " button to adjust values and press " " to
confirm. Press " " button to select end time. Press " " or " " button to adjust values, press " " button to confirm. The setting values are from 00 to 23, with 1-hour increment.

LCD Screen

Press " " button to set up Solar First Timer. Press " " button to select staring time. Press " " or " " button to adjust values and press " " to
confirm. Press " " button to select end time. Press " " or " " button to adjust values, press " " button to confirm. The setting values are from 00 to 23, with 1-hour increment.

Press " " button to set up SBU Priority Timer. Press " " button to select staring time. Press " " or " " button to adjust values and press " " to
confirm. Press " " button to select end time. Press " " or " " button to adjust values, press " " button to confirm. The setting values are from 00 to 23, with 1-hour increment.

Press " " button to exit the Setup Mode.

3. Timer Setting for the Charger Source Priority This timer setting is to set up the charger source priority per day. Procedure

Step 1: Press and hold " source priority.

" button for 3 seconds to enter Timer Setup Mode for charging

Step 2: Press " ", " descriptions in Step 3).

" or "

" button to enter the selectable programs (detail

LCD Screen

Step 3: Please select setting program by following each procedure.

Program#

Operation Procedure

LCD Screen

Press " " button to set up Solar & Utility Timer. Press " " button to select
staring time. Press " " or " " button to adjust values and press " " to confirm. Press " " button to select end time. Press " " or " " button to adjust values, press " " button to confirm. The setting values are from 00 to 23, with 1-hour increment.
Press " " button to set up Solar Only Timer. Press " " button to select staring time. Press " " or " " button to adjust values and press " " to confirm. Press " " button to select end time. Press " " or " " button to adjust values, press " " button to confirm. The setting values are from 00 to 23, with 1-hour increment.

Press " " button to exit the Setup Mode.

LCD Display
The LCD display information will be switched in turn by pressing the "UP" or "DOWN" button. The selectable information is switched as the following table in order.

Selectable information

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

Input voltage/Output voltage (Default Display Screen)

Input frequency

Input frequency=50Hz

PV voltage=260V

PV voltage

PV1 voltage=260V (dual input model) PV2 voltage=260V (dual input model)

PV current

PV current = 2.5A 31

PV power

PV1 current = 2.5A (dual input model) PV2 current = 2.5A (dual input model) PV power = 500W PV1 power = 500W (dual input model) PV2 power = 500W (dual input model)

AC and PV charging current=50A

Charging current

PV charging current=50A AC charging current=50A

Charging power Battery voltage and output voltage

AC and PV charging power=500W PV charging power=500W AC charging power=500W Battery voltage=25.5V, output voltage=230V

Output frequency Load percentage
Load in VA

Output frequency=50Hz
Load percent=70%
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.

Load in Watt

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=25.5V, discharging current=1A

PV energy generated today and Load output energy today

This PV Today energy = 3.88kWh, Load Today energy= 9.88kWh.

This PV month energy = 388kWh, Load month energy= 988kWh.
PV energy generated this month and Load output energy this month.

This PV year energy = 3.88MWh, Load year energy = 9.88MWh.
PV energy generated this year and Load output energy this year.

PV energy generated totally and Load output total energy.

PV Total energy = 38.8MWh, Load Output Total energy = 98.8MWh.

Real date.

Real date Nov 28, 2020.

Real time.

Real time 13:20.

Main CPU version checking.

Secondary CPU version checking.

Secondary Wi-Fi version checking.

Operating Mode Description

Operation mode

Description

Main CPU version 00014.04. Secondary CPU version 00012.03. Secondary Wi-Fi version 00000.24.
LCD display Charging by utility and PV energy.

Charging by utility.

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 PV energy.

No charging.

Operation mode

Description

LCD display 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.

Charging by utility and PV energy.

Line Mode

Charging by utility.

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

If "SUB" (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.

Operation mode Line Mode

Description

LCD display
If either "SUB" (solar first) or "SBU" is selected as output source priority and battery is not connected, solar energy and the utility will provide the loads.

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

Power from utility.

Power from battery and PV energy.

Battery Mode

PV energy will supply power to the loads and charge battery at the same time. No utility is available.

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

Power from battery only.

Power from PV energy only.

Faults Reference Code

Fault Code 01

Fault Event Fan is locked when inverter is off.

Over temperature

Battery voltage is too high

Battery voltage is too low

Output short circuited.

Output voltage is too high.

Overload time out

Bus voltage is too high

Bus soft start failed

PV over current

PV over voltage

DCDC over current

Battery discharge over current

Over current

Bus voltage is too low

Inverter soft start failed

Over DC voltage in AC output

Current sensor failed

Output voltage is too low

Icon on

Warning Indicator

Warning Code

Warning Event

Fan is locked when inverter is on.

Over temperature

Battery is over-charged

Low battery

Audible Alarm Beep three times every second None
Beep once every second
Beep once every second

Icon flashing

Overload

Beep once every 0.5 second

Output power derating

Beep twice every 3 seconds

PV energy is low.

Beep twice every 3 seconds

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

None

Communication failure between inverter and remote display panel

None

Battery equalization

None

Battery is not connected

None

BATTERY EQUALIZATION
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 33 first. Then, you may apply this function in device by either one of following methods: 1. Setting equalization interval in program 37. 2. Active equalization immediately in program 39. 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 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.
41

SPECIFICATIONS
Table 1 Line Mode Specifications
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 Max AC Input Current 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
Output power de-rating: When AC input voltage under 170V the output power will be de-rated.

LV 6548
Sinusoidal (utility or generator) 120Vac
90Vac±7V (UPS) 80Vac±7V (Appliances)
100Vac±7V (UPS); 90Vac±7V (Appliances)
140Vac±7V 135Vac±7V
150Vac 60A
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 (UPS); 20ms typical (Appliances)
Output Power

Rated Power
50% Power

90V 170V

280V Input Voltage

Table 2 Inverter Mode Specifications
MODEL Rated Output Power Output Voltage Waveform

LV 6548 6500W
Pure Sine Wave

Output Voltage Regulation

120Vac±5%

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 Recovery Voltage High DC Cut-off Voltage DC Voltage Accuracy THDV

60Hz or 50Hz

91%

100ms@205% load;5s@150% load; 10s@110%~150% load

2* rated power for 5 seconds

24Vdc 23.0Vdc

48Vdc 46.0Vdc

23.0Vdc 21.4Vdc 20.2Vdc

46.0Vdc 42.8Vdc 40.4Vdc

24.0Vdc 22.4Vdc 21.2Vdc

48.0Vdc 44.8Vdc 42.4Vdc

22.0Vdc

44.0Vdc

20.4Vdc

40.8Vdc

19.2Vdc

38.4Vdc

32Vdc

64Vdc

33Vdc

66Vdc

+/-0.3V@ no load

<5% for linear load,<10% for non-linear load @ nominal voltage

DC Offset

100mV

Table 3 Charge Mode Specifications

Utility Charging Mode

MODEL

Charging Current (UPS) @ Nominal Input Voltage

Flooded

Bulk Charging Battery

Voltage

AGM / Gel

Battery

Floating Charging Voltage

Overcharge Protection

Charging Algorithm

Battery Voltage, per cell

2.43Vdc (2.35Vdc) 2.25Vdc

LV 6548 120A
58.4Vdc
56.4Vdc 54Vdc 66Vdc 3-Step

Charging Current, %

Voltage

100%

Charging Curve
Solar Input MODEL Rated Power Max. PV Array Open Circuit Voltage PV Array MPPT Voltage Range Max. Input Current Start-up Voltage
Power Limitation

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

Bulk (Constant Current)

Absorption (Constant Voltage)

50%

Current
Maintenance (Floating)

Time

PV Current 18A/30A 9A/15A

LV 6548 8000W
250Vdc
90Vdc~230Vdc 18A x 2
80V +/- 5Vdc

75°

85°

MPPT temperature

Table 4 General Specifications
MODEL Safety Certification Operating Temperature Range Storage temperature Humidity Dimension (D*W*H), mm Net Weight, kg

LV 6548 UL
-10°C to 40°C -15°C~ 60°C 5% to 95% Relative Humidity (Non-condensing) 147.4x 432.5 x 553.6
18.4

Table 5 Parallel Specifications (Parallel model only)
Max parallel numbers Circulation Current under No Load Condition Power Unbalance Ratio Parallel communication Transfer time in parallel mode Parallel Kit Note: Parallel feature will be disabled when only PV power is available

6 Max 2A <5% @ 100% Load
CAN Max 50ms
YES

TROUBLE SHOOTING

Problem Unit shuts down automatically during startup process. No response after power on.
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 LCD/LEDs and buzzer will be active for 3 seconds and then complete off.
No indication.
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 56

Explanation / Possible cause
The battery voltage is too low (<1.91V/Cell)
1. The battery voltage is far too low. (<1.4V/Cell) 2. Battery polarity is connected reversed.
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 110% and time is up.
Output short circuited.
Temperature of internal converter component is over 120°C. (Only available for 1-3KVA models.) Internal temperature of inverter component is 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) Internal components failed. Over current or surge. Bus voltage is too low. Output voltage is unbalanced. Battery is not connected well or fuse is burnt.

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. (UPSAppliance) Change output source priority to Utility first.
Check if battery wires are connected well.
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.

Appendix I: Parallel function (Only for parallel models)
1. Introduction This inverter can be used in parallel with three different operation modes. 1. Parallel operation in single phase is with up to 6 units. The supported maximum output power is
39KW/39KVA. 2. Maximum six units work together to support three-phase equipment. Maximum four units support one
phase. 3. Maximum six units work together to support split-phase equipment. 5 units support one phase maximum.
The supported maximum output power is 39KW/39KVA and one phase can be up to 32.5KW/32.5KVA.
2. Mounting the Unit When installing multiple units, please follow below chart.

NOTE: 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. Be sure to install each unit in the same level.

3. Wiring Connection

WARNING: It's REQUIRED to connect battery for parallel operation.

The cable size of each inverter is shown as below:

Recommended battery cable and terminal size for each inverter:

Model

Wire Size

Cable mm2

Ring Terminal Dimensions
D (mm) L (mm)

Torque value

Ring terminal:

LV 6548

1*2/0AWG

8.4

5 Nm

WARNING: Be sure the length of all battery cables is the same. Otherwise, there will be voltage difference between inverter and battery to cause parallel inverters not working. Recommended AC input and output cable size for each inverter:

Model

AWG no.

Torque

LV 6548

4 AWG

1.4~ 1.6 Nm

You need to connect the cables of each inverter together. Take the battery cables for example: You need to use a connector or bus-bar as a joint to connect the battery cables together, and then connect to the battery terminal. The cable size used from joint to battery should be X times cable size in the tables above. "X" indicates the number of inverters connected in parallel. Regarding AC input and output, please also follow the same principle. CAUTION!! Please install the breaker at the battery and AC input side. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over current of battery or AC input.

Recommended breaker specification of battery for each inverter:

Model

1 unit*

LV 6548

250A/70VDC

*If you want to use only one breaker at the battery side for the whole system, the rating of the breaker should be X times current of 1 unit. "X" indicates the number of inverters connected in parallel. Recommended breaker specification of AC input with single phase:

Model

2 units

3 units

4 units

5 units

6 units

LV 6548 120A/230VAC 180A/230VAC 240A/230VAC 300A/230VAC 360A/230VAC

Note 1: Also, you can use 60A breaker with only 1 unit and install one breaker at its AC input in each inverter. Note 2: Regarding three-phase system, you can use 4-pole breaker directly and the rating of the breaker should be compatible with the phase current limitation from the phase with maximum units Recommended battery capacity

Inverter parallel numbers 2

Battery Capacity

200AH 400AH 400AH 600AH 600AH

WARNING! Be sure that all inverters will share the same battery bank. Otherwise, the inverters will transfer to fault mode.

4-1. Parallel Operation in Single phase Two inverters in parallel: Power Connection

Communication Connection

Three inverters in parallel: Power Connection

Communication Connection

Four inverters in parallel: Power Connection

Communication Connection

Five inverters in parallel: Power Connection

Communication Connection

Six inverters in parallel: Power Connection

Communication Connection

4-2. Support 3-phase equipment

Two inverters in each phase: Power Connection
P1

N L1 L2 L3
N L1 L2 L3

Communication Connection

Four inverters in one phase and one inverter for the other two phases: Power Connection

N L1 L2 L3
N L1 L2 L3
Communication Connection
P1

3
51

Three inverters in one phase, two inverters in second phase and one inverter for the third phase:

Power Connection

N L1 L2 L3
N L1 L2 L3

Communication Connection

Three inverters in one phase and only one inverter for the remaining two phases: Power Connection

N L1 L2 L3
N L1 L2 L3
Communication Connection
P1

Two inverters in two phases and only one inverter for the remaining phase: Power Connection

N L1 L2 L3
N L1 L2 L3
Communication Connection
P1

P2
3

Two inverters in one phase and only one inverter for the remaining phases: Power Connection
P1

N L1 L2 L3
N L1 L2 L3
Communication Connection
P1

P2
3

P3
4

One inverter in each phase:

Power Connection

N L1 L2 L3
N L1 L2 L3

Communication Connection

P3
3

WARNING: Do not connect the current sharing cable between the inverters which are in different phases. Otherwise, it may damage the inverters.

4-3. Support split-phase equipment Three inverters in each phase:

N L1 L2
N L1 L2

Communication Connection

Two inverters in each phase: Power Connection

N L1 L2
N L1 L2

Communication Connection
P1

One inverter in each phase:

Power Connection

N L1 L2
N L1 L2

Communication Connection

5. PV Connection Please refer to user manual of single unit for PV Connection. CAUTION: Each inverter should connect to PV modules separately.
55

6. LCD Setting and Display
Setting Program:

Program

Description

Selectable option Single

When the unit is operated alone, please select "SIG" in program 28.

Parallel

When the units are used in parallel for single phase application, please select "PAL" in program 28. Please refer to 5-1 for detailed information.

L1 phase:

L2 phase:

AC output mode

*This setting is able to set up only when

L3 phase:

the inverter is in standby mode. Be

sure that on/off

switch is in "OFF"

status.

When the units are operated in 3-phase application, please choose "3PX" to define each inverter. It is required to have at least 3 inverters or maximum 6 inverters to support three-phase equipment. It's required to have at least one inverter in each phase or it's up to four inverters in one phase. Please refers to 5-2 for detailed information. Please select "3P1" in program 28 for the inverters connected to L1 phase, "3P2" in program 28 for the inverters connected to L2 phase and "3P3" in program 28 for the inverters connected to L3 phase.
Be sure to connect share current cable to units which are on the same phase. Do NOT connect share current cable between units on different phases.

L1 for split phase:

L2 for split phase: (120° phase difference)
L2 for split phase: (180° phase difference)

When the units are operated in split phase application, please choose "2PX" to define each inverter. It is required to have at least 2 inverters or maximum 6 inverters to support split-phase equipment. It's required to have at least one inverter in each phase or it's up to three inverters in one phase. Please refers to 5-2 for detailed information. Please select "2P1" in program 28 for the inverters connected to L1 phase, "2P2" in program 28 for the inverters connected to L2 phase. And it can choose 120°or 180° phase difference for "2P2".
Be sure to connect share current cable to units which are on the same phase.
Do NOT connect share current cable
between units on different phases.

Fault code display: Fault Code

Fault Event

Power feedback protection

Firmware version inconsistent

Current sharing fault

CAN fault

Host loss

Synchronization loss

Battery voltage detected different

AC input voltage and frequency detected different

AC output current unbalance

AC output mode setting is different

Code Reference: Code

Description

Unidentified unit master or slave

Master unit

Slave unit

Icon on Icon on

7. Commissioning

Parallel in single phase
Step 1: Check the following requirements before commissioning: Correct wire connection Ensure all breakers in Line wires of load side are open and each Neutral wires of each unit are connected
together.

Step 2: Turn on each unit and set "PAL" in LCD setting program 28 of each unit. And then shut down all units. NOET: It's necessary to turn off switch when setting LCD program. Otherwise, the setting cannot be programmed.

Step 3: Turn on each unit. LCD display in Master unit

LCD display in Slave unit

NOTE: Master and slave units are randomly defined.
Step 4: Switch on all AC breakers of Line wires in AC input. It's better to have all inverters connect to utility at the same time. If not, it will display fault 82 in following-order inverters. However, these inverters will
57

automatically restart. If detecting AC connection, they will work normally.

LCD display in Master unit

LCD display in Slave unit

Step 5: If there is no more fault alarm, the parallel system is completely installed.

Step 6: Please switch on all breakers of Line wires in load side. This system will start to provide power to the load.

Support three-phase equipment

Step 1: Check the following requirements before commissioning: Correct wire connection

Ensure all breakers in Line wires of load side are open and each Neutral wires of each unit are connected

together.

Step 2: Turn on all units and configure LCD program 28 as P1, P2 and P3 sequentially. And then shut down all

units.

NOET: It's necessary to turn off switch when setting LCD program. Otherwise, the setting cannot be

programmed.

Step 3: Turn on all units sequentially.

LCD display in L1-phase unit

LCD display in L2-phase unit

LCD display in L3-phase unit

Step 4: Switch on all AC breakers of Line wires in AC input. If AC connection is detected and three phases are

matched with unit setting, they will work normally. Otherwise, the AC icon in line mode.

will flash and they will not work

LCD display in L1-phase unit

LCD display in L2-phase unit

LCD display in L3-phase unit

Step 5: If there is no more fault alarm, the system to support 3-phase equipment is completely installed.
Step 6: Please switch on all breakers of Line wires in load side. This system will start to provide power to the load.
Note 1: To avoid overload occurring, before turning on breakers in load side, it's better to have whole system in operation first. Note 2: Transfer time for this operation exists. Power interruption may happen to critical devices, which cannot bear transfer time.

Support split-phase equipment

Step 1: Check the following requirements before commissioning:

Correct wire connection

Ensure all breakers in Line wires of load side are open and each Neutral wires of each unit are connected

together.

Step 2: Turn on all units and configure LCD program 28 as 2P1 and 2P2 sequentially. And then shut down all

units.

NOET: It's necessary to turn off switch when setting LCD program. Otherwise, the setting cannot be

programmed.

Step 3: Turn on all units sequentially.

LCD display in L1-phase unit

LCD display in L2-phase unit

Step 4: Switch on all AC breakers of Line wires in AC input. If AC connection is detected and split-phases are

matched with unit setting, they will work normally. Otherwise, the AC icon in line mode.

will flash and they will not work

LCD display in L1-phase unit

LCD display in L2-phase unit

Step 5: If there is no more fault alarm, the system to split-phase equipment is completely installed. Step 6: Please switch on all breakers of Line wires in load side. This system will start to provide power to the load.
Note 1: To avoid overload occurring, before turning on breakers in load side, it's better to have whole system in operation first. Note 2: Transfer time for this operation exists. Power interruption may happen to critical devices, which cannot bear transfer time.

8. Trouble shooting

Situation

Fault Code

Fault Event Description

Solution

1. Restart the inverter.

2. Check if L/N cables are not connected reversely in all inverters.

Current feedback into the inverter is detected.

3. For parallel system in single phase, make sure the sharing are connected in all inverters. For supporting three-phase system, make sure the sharing cables are connected in the inverters in the same phase, and disconnected in the

inverters in different phases.

4. If the problem remains, please contact your installer.

1. Update all inverter firmware to the same version.

The firmware version 2. Check the version of each inverter via LCD setting and make sure the

of each inverter is not

CPU versions are same. If not, please contact your instraller to provide

the same.

the firmware to update.

3. After updating, if the problem still remains, please contact your installer.

The output current of each inverter is different.

1. Check if sharing cables are connected well and restart the inverter. 2. If the problem remains, please contact your installer.

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CAN data loss Host data loss Synchronization data loss

1. Check if communication cables are connected well and restart the inverter.
2. If the problem remains, please contact your installer.

1. Make sure all inverters share same groups of batteries together.

2. Remove all loads and disconnect AC input and PV input. Then, check

The battery voltage of

battery voltage of all inverters. If the values from all inverters are close,

each inverter is not the

please check if all battery cables are the same length and same material

same.

type. Otherwise, please contact your installer to provide SOP to calibrate

battery voltage of each inverter.

3. If the problem still remains, please contact your installer.

1. Check the utility wiring conncetion and restart the inverter.

AC input voltage and 2. Make sure utility starts up at same time. If there are breakers installed

frequency are detected

between utility and inverters, please be sure all breakers can be turned

different.

on AC input at same time.

3. If the problem remains, please contact your installer.

1. Restart the inverter.

AC output current unbalance

2. Remove some excessive loads and re-check load information from LCD of inverters. If the values are different, please check if AC input and output cables are in the same length and material type.

3. If the problem remains, please contact your installer.

1. Switch off the inverter and check LCD setting #28.

AC output mode setting is different.

2. For parallel system in single phase, make sure no 3P1, 3P2 or 3P3 is set
on #28.
For upporting three-phase system, make sure no "PAL" is set on #28. 3. If the problem remains, please contact your installer.

Appendix II: BMS Communication Installation
1. Introduction If connecting to lithium battery, it is recommended to purchase a custom-made RJ45 communication cable. Please check with your dealer or integrator for details.
This custom-made RJ45 communication cable delivers information and signal between lithium battery and the inverter. These information are listed below: Re-configure charging voltage, charging current and battery discharge cut-off voltage according to the
lithium battery parameters. Have the inverter start or stop charging according to the status of lithium battery.
2. Lithium Battery Communication Configuration PYLONTECH

Dip Switch: There are 4 Dip Switches that sets different baud rate and battery group address. If switch
position is turned to the "OFF" position, it means "0". If switch position is turned to the "ON" position, it means "1".

Dip 1 is "ON" to represent the baud rate 9600. Dip 2, 3 and 4 are reserved for battery group address. Dip switch 2, 3 and 4 on master battery (first battery) are to set up or change the group address.

NOTE: "1" is upper position and "0" is bottom position.

Dip 1

Dip 2 Dip 3 Dip 4 Group address

Single group only. It's required to set up master battery with this

setting and slave batteries are unrestricted.

Multiple group condition. It's required to set up master battery on the

1: RS485

first group with this setting and slave batteries are unrestricted.

baud

Multiple group condition. It's required to set up master battery on the

rate=9600

second group with this setting and slave batteries are unrestricted.

Restart to 1

Multiple group condition. It's required to set up master battery on the third group with this setting and slave batteries are unrestricted.

take effect 0

Multiple group condition. It's required to set up master battery on the

fourth group with this setting and slave batteries are unrestricted.

Multiple group condition. It's required to set up master battery on the

fifth group with this setting and slave batteries are unrestricted.

NOTE: The maximum groups of lithium battery is 5 and for maximum number for each group, please check with battery manufacturer.

3. Installation and Operation After configuration, please install LCD panel with inverter and Lithium battery with the following steps. Step 1. Use custom-made RJ45 cable to connect inverter and Lithium battery.
Note for parallel system: 1. Only support common battery installation. 2. Use custom-made RJ45 cable to connect any inverter (no need to connect to a specific inverter) and
Lithium battery. Simply set this inverter battery type to "PYL" in LCD program 5. Others should be "USE".
Step 2. Switch on Lithium battery.
Step 3. Press more than three seconds to start Lithium battery, power output ready.
Step 4. Turn on the inverter. 62

Step 5. Be sure to select battery type as "PYL" in LCD program 5.

If communication between the inverter and battery is successful, the battery icon

on LCD display will

flash. Generally speaking, it will take longer than 1 minute to establish communication.

Active Function This function is to activate lithium battery automatically while commissioning. After battery wiring and commissioning is successfully, if battery is not detected, the inverter will automatically activate battery if the inverter is powered on.

WECO Step 1. Use a custom-made RJ45 cable to connect inverter and Lithium battery.

Please take notice for parallel system: 1. Only support common battery installation. 2. Use one custom-made RJ45 cable to connect any inverter (no need to connect to a specific inverter) and
Lithium battery. Simply set battery type of this inverter to "WEC" in LCD program 5. The remaining inverters are set as "USE".
Step 2. Switch on Lithium battery.

Step 3. Turn on the inverter.

Step 4. Be sure to select battery type as "WEC" in LCD program 5.

If communication between the inverter and battery is successful, the battery icon

on LCD display will

"flash". Generally speaking, it will take longer than 1 minute to establish communication.

SOLTARO Step 1. Use a custom-made RJ45 cable to connect inverter and Lithium battery.

Please take notice for parallel system: 1. Only support common battery installation. 2. Use one custom-made RJ45 cable to connect any inverter (no need to connect to a specific inverter) and
Lithium battery. Simply set battery type of this inverter to "SOL" in LCD program 5. The remaining inverters are set as "USE". Step 2. Open DC isolator and switch on Lithium battery.
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Step 3. Turn on the inverter.

Step 4. Be sure to select battery type as "SOL" in LCD program 5.

If communication between the inverter and battery is successful, the battery icon

on LCD display will

"flash". Generally speaking, it will take longer than 1 minute to establish communication.

4. LCD Display Information

Press " " or " " button to switch LCD display information. It will show battery pack and battery group

number before "Main CPU version checking" as shown below.

Selectable information

LCD display

Battery pack numbers & Battery Battery pack numbers = 3, battery group numbers = 1

group numbers

5. Code Reference

Related information code will be displayed on LCD screen. Please check inverter LCD screen for the operation.

Code

Description

Action

If battery status is not allowed to charge and

discharge after the communication between

the inverter and battery is successful, it will

show code 60 to stop charging and discharging

battery.

Communication lost (only available when the

battery type is setting as "Pylontech Battery", "WECO Battery" or "Soltaro Battery".) After battery is connected, communication

signal is not detected for 3 minutes,

buzzer will beep. After 10 minutes,

inverter will stop charging and discharging

to lithium battery. Communication lost occurs after the

inverter and battery is connected

successfully, buzzer beeps immediately.

Battery number is changed. It probably is Press "UP" or "DOWN" key to switch LCD because of communication lost between display until below screen shows. It will

battery packs.

have battery number re-checked and 62

warning code will be clear.

If battery status is not allowed to charge after the communication between the inverter and battery is successful, it will show code 69 to stop charging battery. If battery status must to be charged after the communication between the inverter and battery is successful, it will show code 70 to charge battery. If battery status is not allowed to discharge after the communication between the inverter and battery is successful, it will show code 71 to stop discharging battery.

Appendix III: The Wi-Fi Operation Guide in Remote Panel
1. Introduction Wi-Fi module can enable wireless communication between off-grid inverters and monitoring platform. Users have complete and remote monitoring and controlling experience for inverters when combining Wi-Fi module with WatchPower APP, available for both iOS and Android based device. All data loggers and parameters are saved in iCloud. The major functions of this APP: Delivers device status during normal operation. Allows to configure device setting after installation. Notifies users when a warning or alarm occurs. Allows users to query inverter history data.

2. WatchPower App 2-1.Download and install APP
Operating system requirement for your smart phone: iOS system supports iOS 9.0 and above Android system supports Android 5.0 and above
Please scan the following QR code with your smart phone and download WatchPower App.

Android

iOS system

system

Or you may find "WatchPower" app from the Apple® Store or "WatchPower Wi-Fi" in Google® Play Store.

2-2. Initial Setup Step 1: Registration at first time

After the installation, please tap the shortcut icon

to access this APP on your mobile screen. In the screen,

tap "Register" to access "User Registration" page. Fill in all required information and scan the remote box PN by

tapping

icon. Or you can simply enter PN directly. Then, tap "Register" button.

Then, a "Registration success" window will pop up. Tap "Go now" to continue setting local Wi-Fi network connection.
Step 2: Local Wi-Fi Module Configuration Now, you are in "Wi-Fi Config" page. There are detailed setup procedure listed in "How to connect?" section and you may follow it to connect Wi-Fi.

Enter the "SettingsWi-Fi" and select connected Wi-Fi name. The connected Wi-Fi name is the same to your Wi-Fi PN number and enter default password "12345678".

Then, return to WatchPower APP and tap " successfully.
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" button when Wi-Fi module is connected

Step 3: Wi-Fi Network settings

Tap

icon to select your local Wi-Fi router name (to access the internet) and enter password.

Step 4: Tap "Confirm" to complete the Wi-Fi configuration between the Wi-Fi module and the Internet.

If the connection fails, please repeat Step 2 and 3.

Diagnose Function

If the module is not monitoring properly, please tap "

" on the top right corner of the screen for further

details. It will show repair suggestion. Please follow it to fix the problem. Then, repeat the steps in the chapter

4.2 to re-set network setting. After all setting, tap "Rediagnosis" to re-connect again.

2-3. Login and APP Main Function After finishing the registration and local Wi-Fi configuration, enter registered name and password to login. Note: Tick "Remember Me" for your login convenience afterwards.
Overview After login is successfully, you can access "Overview" page to have overview of your monitoring devices, including overall operation situation and Energy information for Current power and Today power as below diagram.
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Devices

Tap the icon (located on the bottom) to enter Device List page. You can review all devices here by adding

or deleting Wi-Fi Module in this page.

Add device

Delete device

Tap icon on the top right corner and enter part number by scanning bar code to add Wi-Fi module. This part number is printed on the Wi-Fi module's surface, or manually enter it. Tap "Confirm" to add Wi-Fi module in the Device list.
For more information about Device List, please refer to the section 2.4. ME In ME page, users can modify "My information", includingUser's Photo,Account security, Modify password,Clear cache,andLog-out, shown as below diagrams.
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2-4. Device List In Device List page, you can pull down to refresh the device information and then tap any device you want to check up for its real-time status and related information as well as to change parameter settings. Please refer to the parameter setting list.
Device Mode On the top of screen, there is a dynamic power flow chart to show live operation. It contains five icons to present PV power, inverter, load, utility and battery. Based on your inverter model status, there will be Standby Mode,Line Mode,Battery Mode. Standby ModeInverter will not power the load until "ON" switch is pressed. Qualified utility or PV source can charge battery in standby mode.
Line ModeInverter will power the load from the utility with or without PV charging. Qualified utility or PV source can charge battery.
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Battery ModeInverter will power the load from the batter with or without PV charging. Only PV source can charge battery.

Device Alarm and Name Modification

In this page, tap the

icon on the top right corner to enter the device alarm page. Then, you can review

alarm history and detailed information. Tap the icon on the top right corner, a blank input box will pop out. Then, you can edit the name for your device and tap "Confirm" to complete name modification.

Device Information Data Users can check up Basic Information,Product Information,Rated information,History, and Wi-Fi Module Informationby swiping left.
Swipe left
Basic Informationdisplays basic information of the inverter, including AC voltage, AC frequency, PV input voltage, Battery voltage, Battery capacity, Charging current, Output voltage, Output frequency, Output apparent power, Output active power and Load percent. Please slide up to see more basic information. Production Informationdisplays Model type (Inverter type), Main CPU version, Bluetooth CPU version and secondary CPU version.
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Rated Informationdisplays information of Nominal AC voltage, Nominal AC current, Rated battery voltage, Nominal output voltage, Nominal output frequency, Nominal output current, Nominal output apparent power and Nominal output active power. Please slide up to see more rated information.
Historydisplays the record of unit information and setting timely.
Wi-Fi Module Informationdisplays of Wi-Fi Module PN, status and firmware version.
Parameter Setting This page is to activate some features and set up parameters for inverters. Please be noted that the listing in "Parameter Setting" page in below diagram may differ from the models of monitored inverter. Here will briefly highlight some of it,Output Setting,Battery Parameter Setting,Enable/ Disable items,Restore to the defaultsto illustrate.

There are three ways to modify setting and they vary according to each parameter. a) Listing options to change values by tapping one of it.
b) Activate/Shut down functions by clicking "Enable" or "Disable" button.
c) Changing values by clicking arrows or entering the numbers directly in the column. Each function setting is saved by clicking "Set" button.

Please refer to below parameter setting list for an overall description and be noted that the available

parameters may vary depending on different models. Please always see the original product manual for

detailed setting instructions.

Parameter setting list:

Item

Description

Output setting Output source To configure load power source priority.

priority

AC input range When selecting "UPS", it's allowed to connect personal computer.

Output voltage

Please check product manual for details. When selecting "Appliance", it's allowed to connect home appliances. To set output voltage.

Output frequency To set output frequency.

Battery

Battery type:

To set connected battery type.

parameter

Battery cut-off To set the battery stop discharging voltage.

setting

voltage

Please see product manual for the recommended voltage range based

on connected battery type.

Back to grid voltage

When "SBU" or "SOL" is set as output source priority and battery voltage is lower than this setting voltage, unit will transfer to line mode

and the grid will provide power to load.

Back to discharge When "SBU" or "SOL" is set as output source priority and battery

voltage

voltage is higher than this setting voltage, battery will be allowed to

discharge.

Charger source To configure charger source priority.

priority:

Max. charging

current Max. AC charging current: Float charging

It's to set up battery charging parameters. The selectable values in different inverter model may vary.
Please see product manual for the details.

voltage

Bulk charging voltage
Battery

It's to set up battery charging parameters. The selectable values in different inverter model may vary. Please see product manual for the details.
Enable or disable battery equalization function.

equalization

Real-time Activate Battery

It's real-time action to activate battery equalization.

Equalization

Equalized Time To set up the duration time for battery equalization.

Out

Equalized Time To set up the extended time to continue battery equalization.

Equalization

To set up the frequency for battery equalization.

Period

Equalization

To set up the battery equalization voltage.

Voltage

Enable/Disable LCD Auto-return If enable, LCD screen will return to its main screen after one minute

Functions

to Main screen automatically.

Fault Code

If enabled, fault code will be recorded in the inverter when any fault

Record

happens.

Backlight

If disabled, LCD backlight will be off when panel button is not operated

for 1 minute.

Bypass Function If enabled, unit will transfer to line mode when overload happened in

battery mode.

Beeps while

If enabled, buzzer will alarm when primary source is abnormal.

primary source

interrupt

Over

If disabled, the unit won't be restarted after over-temperature fault is

Temperature

solved.

Auto Restart

Overload Auto Restart

If disabled, the unit won't be restarted after overload occurs.

Buzzer

If disabled, buzzer won't be on when alarm/fault occurred.

Enable/disable Turn on or off RGB LEDs

Brightness

Adjust the lighting brightness

RGB LED Setting Speed

Adjust the lighting speed

Effects

Change the light effects

Color selection Adjust color combination to show energy source an battery status

Restore to the This function is to restore all settings back to default settings.

default

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