Sun Gold Power IP6048 Hybrid PV Inverter

Specifications

• Brand: Sun Gold Power Inc
• Model: IP6048
• Version: 1.6

Product Information

This hybrid PV inverter can provide power to connected loads by utilizing PV power, utility power, and battery power. It is designed to work with PV modules, batteries, and electric grids to supply power to loads efficiently.

The inverter comes with a distribution box that helps manage the flow of power between the different sources, ensuring a reliable power supply to the connected loads.

Product Usage Instructions

1. Safety Precautions

Before using the inverter, ensure you have read and understood all safety warnings and instructions provided in the manual. It is important to follow these precautions to prevent injuries or damage to the equipment.

2. Installation

When installing the inverter, make sure to have at least two persons to lift the heavy unit safely. Ensure that all power sources including AC, DC, and battery power are disconnected before performing any maintenance tasks or working on circuits connected to the inverter.

3. Maintenance

Do not attempt to disassemble the inverter as it contains no user-serviceable parts. Contact authorized service personnel for any maintenance or repair needs. Avoid operating the inverter if it has been damaged in any way; seek an RMA for repair or replacement.

4. Operating Conditions

Place the inverter away from high-traffic areas as it may become hot under high-temperature environments. Use recommended accessories and ensure that wiring is in good condition to prevent fire hazards or electrical shocks.

Frequently Asked Questions

• Q: Can I install this inverter myself?
  • A: Installation should be done by qualified personnel to ensure safety and proper functioning of the inverter.
• Q: What should I do if the inverter is damaged?
  • A: If the inverter has been damaged, contact the manufacturer for a Return Material Authorization (RMA) to arrange for repair or replacement.
• Q: How do I know if the wiring is suitable for the inverter?
  • A: Make sure that existing wiring is not damaged or undersized to avoid fire hazards or electric shocks. Consult with a professional if unsure about the wiring.

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User Manual

IP6048

Introduction

This hybrid PV inverter can provide power to connected loads by utilizing PV power, utility power and battery power.

Hybrid inverter

Distribution Box

Electric grids

PV modules

Load

Battery
Figure 1 Basic hybrid PV System Overview
Depending on different power situations, this hybrid inverter is designed to generate continuous power from PV solar modules (solar panels), battery, and the utility. When MPP input voltage of PV modules is within acceptable range (see specification for the details), this inverter is able to generate power to feed the grid (utility) and charge battery. This inverter is only compatible with PV module types of single crystalline and poly crystalline. Do not connect any PV array types other than these two types of PV modules to the inverter. Do not connect the positive or negative terminal of the solar panel to the ground. See Figure 1 for a simple diagram of a typical solar system with this hybrid inverter.

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Important Safety Warning

Before using the inverter, please read all instructions and cautionary markings on the unit and this manual. Store the manual where it can be accessed easily. This manual is for qualified personnel. The tasks described in this manual may be performed by qualified personnel only. General Precaution-
Conventions used: WARNING! Warnings identify conditions or practices that could result in personal injury; CAUTION! Caution identify conditions or practices that could result in damaged to the unit or other equipment connected.

WARNING! Before installing and using this inverter, read all instructions and cautionary markings on the inverter and all appropriate sections of this guide.
WARNING! Normally grounded conductors may be ungrounded and energized when a ground fault is indicated.
WARNING! This inverter is heavy. It should be lifted by at least two persons.
CAUTION! Authorized service personnel should reduce the risk of electrical shock by disconnecting AC, DC and battery power from the inverter before attempting any maintenance or cleaning or working on any circuits connected to the inverter. Turning off controls will not reduce this risk. Internal capacitors can remain charged for 5 minutes after disconnecting all sources of power.
CAUTION! Do not disassemble this inverter yourself. It contains no user- serviceable parts. Attempt to service this inverter yourself may cause a risk of electrical shock or fire and will void the warranty from the manufacturer.
CAUTION! To avoid a risk of fire and electric shock, make sure that existing wiring is in good condition and that the wire is not undersized. Do not operate the Inverter with damaged or substandard wiring.

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CAUTION! Under high temperature environment, the cover of this inverter could be hot enough to cause skin burns if accidentally touched. Ensure that this inverter is away from normal traffic areas.
CAUTION! Use only recommended accessories from installer. Otherwise, not- qualified tools may cause a risk of fire, electric shock, or injury to persons.
CAUTION! To reduce risk of fire hazard, do not cover or obstruct the cooling fan.
CAUTION! Do not operate the Inverter if it has received a sharp blow, been dropped, or otherwise damaged in any way. If the Inverter is damaged, please call for an RMA (Return Material Authorization).
CAUTION! AC breaker, DC switch and Battery circuit breaker are used as disconnect devices and these disconnect devices shall be easily accessible.
Before working on this circuit – Isolate inverter/Uninterruptible Power System (UPS)
– Then check for Hazardous Voltage between all terminals including the protective earth. Risk of Voltage Backfeed
Symbols used in Equipment Markings Refer to the operating instructions
Caution! Risk of danger Caution! Risk of electric shock Caution! Risk of electric shock. Energy storage timed discharge for 5 minutes. Caution! Hot surface

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Unpacking & Overview

3-1. Packing List 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 RS-232 cable Parallel cable Share current wires Manual

Fixing screws WiFi antenna 3-2. Product Overview

1. PV connectors 2) AC Grid connectors 3) Battery connectors 4) AC output connectors (Load
   connection) 5) Generator input 6) External sensor port 7) Dry contact & USB communication
   port 8) BMS & RS-232 communication port 9) LCD display panel (Please check
   section 13 for detailed LCD operation) 10) Operation buttons 11) Current sharing port 12) Parallel communication port 13) PV switch 14) Cold start button

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Installation

4-1. Precaution This hybrid inverter is designed for indoor or outdoor use (IP65), please make sure the installation site meets below conditions: Not in direct sunlight Not in areas where highly flammable materials are stored. Not in potential explosive areas. Not in the cool air directly. Not near the television Antenna or antenna cable. Not higher than altitude of about 2000 meters above sea level. Not in environment of precipitation or humidity (>95%).

Please AVOID direct sunlight, rain exposure, snow laying up during installation and operation.

4-2. Selecting Mounting Location Please select a vertical wall with load- bearing capacity for installation, appropriate
for installation on concrete or other non-flammable surfaces. The ambient temperature should be between -25~60 to ensure optimal
operation. Be sure to keep other objects and surfaces as shown in the diagram to guarantee
sufficient heat dissipation and have enough space for removing wires. For proper air ventilation to dissipate heat, allow a clearance of approx. 50cm to
the side and approx. 50cm above and below the unit. And 100cm toward the front.

4.3. Mounting Unit
WARNING!! Remember that this inverter is heavy! Please be carefully when lifting out from the package.

Installation to the wall should be implemented with the proper screws. After that, the device should be bolted on securely.
The inverter only can be used in a CLOSED ELECTRICAL OPERATING AREA. Only service person can enter into this area.
WARNING!! FIRE HAZARD. SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON- COMBUSTIBLE SURFACE ONLY.

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1. Fix four screws as shown in the chart (width: 487mm, height: 350mm). The reference tightening torque is 35 N.m.

2. Raise the inverter and place it over the four screws.

3. Check if the inverter is firmly secured.

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Grid (Utility) Connection

5-1. Preparation

NOTE 1: The overvoltage category of the AC input is III. It should be connected to the

power distribution.

NOTE 2: Before connecting to grid, please install a separate AC breaker between

inverter and grid. This will ensure the inverter can be securely disconnected during

maintenance and fully protected from over current. The recommended of AC breaker is

40A/300V.

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

appropriate cable for grid (utility) connection. To reduce risk of injury, please use the

proper recommended cable size as below.

Suggested cable requirement for AC wire

Nominal Grid Voltage

120VAC per phase

Conductor cross-section (mm2)

10-16

AWG no.

8-6

5-2. Connecting to the AC Utility Please follow below steps to implement AC input connection: 1. Before making AC input connection, be sure to open DC protector or disconnector
first. 2. Remove insulation sleeve 7mm for four conductors. 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)
L1LINE (black) L2LINE (brown) NNeutral (blue)

WARNING: Be sure that AC power source is disconnected before attempting to hardwire it to the unit.
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Generator Connection

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6-1. Preparation

NOTE 1: The overvoltage category of the AC input is III. It should be connected to the

power distribution.

NOTE 2: Before connecting to grid, please install a separate AC breaker between

inverter and grid. This will ensure the inverter can be securely disconnected during

maintenance and fully protected from over current. The recommended of AC breaker is

40A/300V.

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

appropriate cable for generator connection. To reduce risk of injury, please use the

proper recommended cable size as below.

Suggested cable requirement

Nominal Grid Voltage

120VAC per phase

Conductor cross-section (mm2)

10-16

AWG no.

8-6

6-2. Connecting to the Generator Input Please follow below steps to implement generator input connection: 1. Before making generator input connection, be sure to open DC protector or
disconnector first. 2. Remove insulation sleeve 7mm for four conductors. 3. Insert 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)
L1LINE (black) L2LINE (brown) NNeutral (blue)

WARNING: Be sure that generator power source is disconnected before attempting to hardwire it to the unit.

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PV Module (DC) Connection

CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter and PV modules. NOTE1: Please use 1000VDC/20A circuit breaker. NOTE2: The overvoltage category of the PV input is II. Please follow below steps to implement PV module connection:
WARNING: Because this inverter is non-isolated, only two types of PV modules are acceptable: single crystalline and poly crystalline with class A-rated. To avoid any malfunction, do not connect any PV modules with possibility of leakage current to the inverter. For example, grounded PV modules will cause leakage current to the inverter. CAUTION: It’s requested to have PV junction box with surge protection. Otherwise, it will cause inverter damage when lightning occurs on PV modules.

Step 1: Check the input voltage of PV array modules. The acceptable input voltage of the inverter is 120VDC – 600VDC. This system is applied with two strings of PV array. Please make sure that the maximum current load of each PV input connector is 15A.

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: Remove insulation sleeve 7 mm for positive and negative conductors. 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.
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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.

Conductor cross-section (mm2) 4

AWG no. 12

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

CAUTION: Do NOT touch the inverter to avoid electric shock. When PV modules are exposed to sunlight, it may generate DC voltage to the inverter.

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Recommended Panel Configuration

Specifications Nominal Max. Power (Pmax) (W) Opt. Operating Voltage (Vmp) (V) Opt. Operating Current (Imp) (A) Open Circuit Voltage (Voc) (V) Short Circuit Current (Isc) (A)

430 40.3 10.68 48.3 11.37

Solar panel

455

520

41.3

41.6

11.02 12.5

49.3 49.14

11.66 13.23

535 41.9 12.77 49.44 13.5

For 7.5KW input recommendation Numbers in series of MPPT1 Numbers of strings in MPPT1 Maximum input voltage of MPPT1 (V) Input power of MPPT1 (W) Numbers in series of MPPT2 Numbers of strings in MPPT2 Maximum input voltage of MPPT1 (V) Input power of MPPT2 (W) Total input power (W)

12 1 579.6 5160 6 1 289.8 2580 7740

11 1 542.3 5005 6 1 295.8 2730 7735

11 1 540.54 5720 4 1 196.56 2080 7800

10 1 494.4 5350 5 1 247.2 2675 8025

Minimum input recommendation Numbers in series of MPPT1 Numbers of strings in MPPT1 Maximum input voltage of MPPT1 (V) Input power of MPPT1 (W) Numbers in series of MPPT2 Numbers of strings in MPPT2 Maximum input voltage of MPPT1 (V) Input power of MPPT2 (W) Total input power (W)

5 1 241.5 2150 5 1 241.5 2150 4300

5 1 246.5 2275 5 1 246.5 2275 4550

5 1 245.7 2600 5 1 245.7 2600 5200

5 1 247.2 2675 5 1 247.2 2675 5350

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Battery Connection

CAUTION: Before connecting to batteries, please install separately a DC circuit breaker between inverter and batteries. NOTE1: Please only use sealed lead acid battery, vented and Gel battery. Please check maximum charging voltage and current when first using this inverter. If using Lithium iron or Nicd battery, please consult with installer for the details. NOTE2: Please use 60VDC/200A circuit breaker. NOTE3: The overvoltage category of the battery input is II. Please follow below steps to implement battery connection: Step 1: Check the nominal voltage of batteries. The nominal input voltage for inverter is 48VDC.

Step 2: Use two battery cables. Remove insulation sleeve 10 mm and insert conductor into cable ring terminal. Refer to right chart.

The cable size of each inverter is shown as below: Recommended battery cable and terminal size for each inverter:

Ring Terminal

Wire Size

Cable mm2

Dimensions D (mm) L (mm)

Torque value

2

33.6

8.4

42.5

7~12 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.

Step 3: Insert battery wires according to polarities indicated on the terminal block and tighten the terminal screws. Make sure polarity at both the battery and the inverter/charge is correctly connected.

RED cable to the positive terminal (+); BLACK cable to the negative terminal (-).

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WARNING! Wrong connections will damage the unit permanently.

Step 4: Make sure the wires are securely connected. The reference tightening torque is 5.5~7.0 N.m.

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 size as below.

Nominal Battery Voltage

48V

Conductor cross-section (mm2)

85

AWG no.

3/0

Protective earthing (battery side)

150mm2 (300kcmil)

Load (AC Output) Connection

9-1. Preparation

CAUTION: To prevent further supply to the load via the inverter during any mode of

operation, an additional disconnection device should be placed on in the building wiring

installation.

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

appropriate cable for AC connection. To reduce risk of injury, please use the proper

recommended cable size as below.

Nominal Grid Voltage

120/208/240 VAC per phase

Conductor cross-section (mm2)

5.5-10

AWG no.

10-8

9-2. Connecting to the AC output

Step 1: Before making output connection, be sure to open DC protector or disconnector first. Step 2: Remove insulation sleeve 7mm for four conductors.

Step 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)
L1LINE (black) L2LINE (brown) NNeutral (blue)

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The reference tightening torque is 1.0-1.5 N.m.
Step 4: Make sure the wires are securely connected.
CAUTION: Do NOT connect the utility to “AC Output Connector (Load connector)”. CAUTION: Be sure to connect L terminal of load to L terminal of “AC Output Connector(Load connector)” and N terminal of load to N terminal of “AC Output Connector(Load connector)”. The G terminal of “AC Output Connector” is connected to grounding of the load. Do NOT mis-connect.
CAUTION: Appliances such as air conditioner are required at least 2~3 minutes to restart because it’s required to have enough time to balance refrigerant gas inside of circuits. If a power shortage occurs and recovers in a short time, it will cause damage to your connected appliances. To prevent this kind of damage, please check manufacturer of air conditioner if it’s equipped with time-delay function before installation. Otherwise, this inverter/charger will trig overload fault and cut off output to protect your appliance but sometimes it still causes internal damage to the air conditioner.

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Communication

The inverter is equipped with several communication ports to communicate with a PC with corresponding software. Follow below procedure to connect communication wiring and install the software.

Please install monitoring software in your computer. Detailed information is listed in the next chapter. After software is installed, you may initial the monitoring software and extract data through communication port.
10-1. 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 “SolarPower WiFi” app from the Apple® Store or “SolarPower” in Google® Play Store. All data loggers and parameters are saved in iCloud. For quick installation and operation, please refer to Appendix II – The Wi-Fi Operation Guide for details.
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10-2. Pin Assignment for RS-232 Communication Port

Definition

PIN 1

RS232TX

PIN 2

RS232RX

PIN 3

NC

PIN 4

8~12V

PIN 5

NC

PIN 6

NC

PIN 7

NC

PIN 8

GND

10-3. Pin Assignment for BMS Communication Port

Definition

PIN 1

RS232TX

PIN 2

RS232RX

PIN 3

RS485B

PIN 4

8~12V

PIN 5

RS485A

PIN 6

CANH

PIN 7

CANL

PIN 8

GND

10-4. Dry Contact Signal There is one dry contact available on the bottom panel. It could be used to remote control for external generator. There are two different logic commands available. You may select either one by running the command ^S004DRY0 or ^S004DRY1.

Electric Parameter

Parameter

Symbol Max.

Unit

Relay DC voltage

Vdc

30

V

Relay DC current

Idc

1

A

Note: The application of the dry contact should not exceed the electric parameter shown

as above. Otherwise, the internal relay will be damaged.

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Logic 1: Command ^S004DRY1 This is the default setting. Function Description

Unit Status Power Off
Power On

Condition

Dry contact port:

NO&C

NC&C

Unit is off and no output is powered.

Open

Close

Battery voltage is lower than setting battery cut-off discharging voltage when grid is available.
Battery voltage is lower than setting battery cut-off discharging voltage when grid is unavailable.
One of the following condition is met. 1. Battery voltage is higher than below 2
setting values: Battery re-discharging voltage when
grid is available. Battery re-discharging voltage when
grid unavailable. 2. The inverter is in fault mode. 3. Communication between DSP and
communication board is lost.

Close Close
Open

Open Open
Close

Logic 2: Command ^S004DRY0

Function Description

Unit Status

Condition

Dry contact port:

NO&C

NC&C

Power Off

Unit is off and no output is powered.

Open

Close

Battery voltage is lower than GSV* when grid is unavailable.

Close

Open

One of the following condition is met.

1. Battery voltage is higher than Battery re-

Power On

discharging voltage when grid unavailable 2. The inverter is in fault mode.

Open

Close

3. Communication between DSP and

communication board is lost.

4. Grid is ok

• GSV= battery cut-off discharging voltage when grid is unavailable+1.5V.

You can set the related parameters through LCD operation or software. Refer to LCD

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setting 9, 10, 11 and 12 in LCD setting section. If using software, refer to below chart.

Commissioning

Step 1: Check the following requirements before commissioning: Ensure the inverter is firmly secured Check if the open circuit DC voltage of PV module meets requirement (Refer to
Section 7) Check if the open circuit utility voltage of the utility is at approximately same to
the nominal expected value from local utility company. Check if connection of AC cable to grid (utility) is correct if the utility is required. Full connection to PV modules. AC circuit breaker (only applied when the utility is required), batter circuit breaker,
and DC circuit breaker are installed correctly.
Step 2: Switch on the battery circuit breaker and then switch on PV DC breaker. After that, if there is utility connection, please switch on the AC circuit breaker. At this moment, the inverter is turned on already. However, there is no output generation for loads. Then: If LCD lights up to display the current inverter status, commissioning has been
successfully. After pressing “ENTER” or “Cold Start” button for 3 seconds when the utility is detected, this inverter will start to supply power to the loads. If a warning/fault indicator appears in LCD, an error has occurred to this inverter. Please inform your installer.
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Initial Setup

Before inverter operation, it’s required to set up “Operation Mode” via software. Please strictly follow below steps to set up. For more details, please check software manual.
Step 1: After turning on the inverter and installing the software, please click “Open Monitor” to enter main screen of this software. Step 2: Log in into software first by entering default password “administrator”. Step 3: Select Device Control>>MyPower Management. It is to set up inverter
operation mode and personalized interface. Refer to diagram below.

SECTION A:
Mode (Refer to LCD setting 13) There are three operation modes: Grid-tie with backup, Grid-Tie and Off-Grid. Grid-tie with backup: PV power can feed-in back to grid, provide power to the
load and charge battery. There are four options available in this mode: Gridtie with backup I, II, III and IV. In this mode, users can configure PV power
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supply priority, charging source priority and load supply source priority. However, when Grid-tie with backup IV option is selected in PV energy supply priority, the inverter is only operated between two working logics based on defined peak time and off-peak time of electricity. Only peak time and off- peak time of electricity are able to set up for optimized electricity usage. Grid-Tie: PV power only can feed-in back to grid.
Off-Grid: PV power only provides power to the load and charge battery. No feed-in back to grid is allowed.
Standard (It can only be modified by software)
It will list local grid standard. It’s requested to have factory password to make any modifications. Please check local dealer only when this standard change is requested.
CAUTION: Wrong setting could cause the unit damage or not working.

Nominal Output Voltage (Refer to LCD setting 01) The factory default voltage is 120V. You can select 110V or 120V as required. Nominal Output Frequency (Refer to LCD setting 02) The factory default frequency is 60hz. You can select 50Hz or 60Hz as required.
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SECTION B: Setting This section contents may be different based on different selected types of operations. Allow AC charging duration (Refer to LCD setting 21-24) It’s a period time to allow AC (grid) to charge battery. When the duration is set up as 0:00-00:00, it means no time limitation for AC to charge battery.
AC output ON/Off Timer (Refer to LCD setting 25, 26) Set up on/off time for AC output of inverter. If setting it as 00:00/00:00, this function is disabled.
Allow to charge battery (Refer to LCD setting 15) This option is automatically determined by setting in “Charging source”. It’s not allowed to modify here. When “NONE” is selected in charging source section, this option becomes unchecked as grey text.
Allow AC to charge battery (Refer to LCD setting 15) This option is automatically determined by setting in “Charging source”. It’s not allowed to modify here. When “Grid and PV” or “Grid or PV” is selected in charging source section, this option is default selected. Under Grid-tie mode, this option is invalid.
Allow to feed-in to the Grid (Refer to LCD setting 16) This option is only valid under Grid-tie and Grid-tie with backup modes. Users can decide if this inverter can feed-in to the grid.
Allow battery to discharge when PV is available This option is automatically determined by setting in “Load supply source (PV is available)”. When “Battery” is higher priority than “Grid” in Load supply source (PV is available), this option is default selected. Under Grid-tie, this option is invalid.
Allow battery to discharge when PV is unavailable This option is automatically determined by setting in “Load supply source (PV is unavailable)”. When “Battery” is higher priority than “Grid” in Load supply source (PV is unavailable), this option is default selected. Under Grid-tie mode, this option is invalid.
Allow battery to feed-in to the Grid when PV is available (Refer to LCD setting 17) This option is only valid in Grid-tie with backup II or Grid-tie with backup III modes.

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Allow battery to feed-in to the Grid when PV is unavailable (Refer to LCD setting 16) This option is only valid in all options of Grid-tie with backup mode.
PV energy support priority setting (Refer to LCD setting 14) It will affect the selection of “Battery charging source (LCD setting 15)”, “Load supply source (LCD setting 19 and 20)”.
Grid-tie with backup Grid-tie with backup (I) :

PV energy supply priority setting: 1st Battery, 2nd Load and 3rd Grid. PV power will charge battery first, then provide power to the load. If there is any remaining power left, it will feed-in to the grid. Battery charging source: 1. PV and Grid (Default) It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will charge battery. 2. PV only It is only allow PV power to charge battery. 3. None It is not allowed to charge battery no matter it’s from PV power or grid. Load supply source: (also refer to LCD setting 19 and 20) When PV power is available: 1st PV, 2nd Grid, 3rd Battery If battery is not fully charged, PV power will charge battery first. And remaining PV
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power will provide power to the load. If it’s not sufficient, grid will provide power to the load. If grid is not available at the same time, battery power will back up.

When PV power is not available: 1. 1st Grid, 2nd Battery (Default) Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1st Battery, 2nd Grid Battery power will provide power to the load at first. If battery power is running out, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
Grid-tie with backup (II) :

PV energy supply priority setting: 1st Load, 2nd Battery and 3rd Grid. PV power will provide power to the load first. Then, it will charge battery. If there is any remaining power left, it will feed-in to the grid. Battery charging source: 1. PV and Grid It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will charge battery.
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2. PV only It is only allow PV power to charge battery. 3. None It is not allowed to charge battery no matter it’s PV power or grid. Load supply source: When PV power is available: 1. 1st PV, 2nd Battery, 3rd Grid PV power will provide power to the load first. If it’s not sufficient, battery power will provide power to the load. When battery power is running out or not available, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st PV, 2nd Grid and 3rd Battery in order. Otherwise, it will cause battery damage. 2. 1st PV, 2nd Grid, 3rd Battery PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the load. If grid is not available at the same time, battery power will back up.
When PV power is not available: 1. 1st Grid, 2nd Battery: Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1st Battery, 2nd Grid: Battery power will provide power to the load at first. If battery power is running out, grid will back up the load NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.

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PV energy supply priority setting: 1st Load, 2nd Grid and 3rd Battery PV power will provide power to the load first. If there is more PV power available, it will feed-in to the grid. If feed-in power reaches max. feed-in power setting, the remaining power will charge battery. NOTE: The max. feed-in grid power setting is available in parameter setting. Please refer to software manual.
Battery charging source: 1. PV and Grid: It’s allowed to charge battery from PV power first. If it’s not sufficient, grid will charge battery. 2. PV only: It is only allow PV power to charge battery. 3. None: It is not allowed to charge battery no matter it’s PV power or grid. Load supply source: When PV power is available: 1. 1st PV, 2nd Battery, 3rd Grid PV power will provide power to the load first. If it’s not sufficient, battery power will provide power to the load. When battery power is running out or not available, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st PV, 2nd Grid and 3rd Battery in order. Otherwise, it will cause battery damage.
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2. 1st PV, 2nd Grid, 3rd Battery
PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the load. If grid is not available at the same time, battery power will back up.

When PV power is not available: 1. 1st Grid, 2nd Battery: Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1st Battery, 2nd Grid: Battery power will provide power to the load at first. If battery power is running out, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
Grid-tie with backup (IV): Users are only allowed to set up peak time and offpeak electricity demand.

Working logic under peak time: PV energy supply priority: 1st Load, 2nd Battery and 3rd Grid PV power will provide power to the load first. If PV power is sufficient, it will charge battery next. If there is remaining PV power left, it will feed-in to the grid. Feed-in to the grid is default disabled. Battery charging source: PV only Only after PV power fully supports the load, the remaining PV power is allowed to
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charge battery during peak time. Load supply source: 1st PV, 2nd Battery, 3rd Grid PV power will provide power to the load first. If PV power is not sufficient, battery power will back up the load. If battery power is not available, grid will provide the load. When PV power is not available, battery power will supply the load first. If battery power is running out, grid will back up the load.
Working logic under off-peak time: PV energy supply priority: 1st Battery, 2nd Load and 3rd Grid PV power will charge battery first. If PV power is sufficient, it will provide power to the loads. The remaining PV power will feed to the grid. NOTE: The max. feed-in grid power setting is available in parameter setting. Please refer to software manual.
Battery charging source: PV and grid charge battery PV power will charge battery first during off-peak time. If it’s not sufficient, grid will charge battery. Load supply source: 1st PV, 2nd Grid, 3rd Battery When battery is fully charged, remaining PV power will provide power to the load first. If PV power is not sufficient, grid will back up the load. If grid power is not available, battery power will provide power to the load.
Grid-Tie Under this operation mode, PV power only feeds-in to the grid. No priority setting is available.

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Off-Grid Off-Grid (I): Default setting for off-grid mode.

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PV energy supply priority setting: 1st Load, 2nd Battery PV power will provide power to the load first and then charge battery. Feed-in to the grid is not allowed under this mode. At the same time, the grid relay is connected in Inverter mode. That means the transfer time from inverter mode to battery mode will be less than 15ms. Besides, it will avoid overload fault because grid can supply load when connected load is over rated output capacity of the inverter. Battery charging source: 1. PV or Grid: If there is remaining PV power after supporting the loads, it will charge
battery first. Only until PV power is not available, grid will charge battery. (Default) 2. PV only: It is only allow PV power to charge battery. 3. None: It is not allowed to charge battery no matter it’s PV power or grid. Load supply source: When PV power is available: 1. 1st PV, 2nd Battery, 3rd Grid (Default) PV power will provide power to the load first. If it’s not sufficient, battery power will provide power to the load. When battery power is running out or not available, grid will back up the load. 2. 1st PV, 2nd Grid, 3rd Battery PV power will provide power to the load first. If it’s not sufficient, grid will provide
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power to the load. If grid is not available at the same time, battery power will back up.

When PV power is not available: 1. 1st Grid, 2nd Battery Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1st Battery, 2nd Grid (Default) Battery power will provide power to the load at first. If battery power is running out, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
Off-Grid (II)

PV energy supply priority setting: 1st Battery, 2nd Load PV power will charge battery first. After battery is fully charged, if there is remaining PV power left, it will provide power to the load. Feed-in to the grid is not allowed under this mode. At the same time, the grid relay is connected in Inverter mode. That means the transfer time from inverter mode to battery mode will be less than 15ms. Besides, it will avoid overload fault because grid can supply load when connected load is over rated output capacity of the inverter.
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Battery charging source: 1. PV or Grid: If there is remaining PV power after supporting the loads, it will charge battery first. Only until PV power is not available, grid will charge battery. 2. PV only: It is only allow PV power to charge battery. 3. None: It is not allowed to charge battery no matter it’s PV power or grid. NOTE: It’s allowed to set up AC charging duration. Load supply source: When PV power is available: 1st PV, 2nd Grid, 3rd Battery PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the load. If grid is not available at the same time, battery power will back up.
When PV power is not available: 1. 1st Grid, 2nd Battery: Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1st Battery, 2nd Grid: Battery power will provide power to the load at first. If battery power is running out, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.
Off-Grid (III)

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PV energy supply priority setting: 1st Load, 2nd Battery PV power will provide power to load first and then charge battery. Feed-in to the grid is not allowed under this mode. The grid relay is NOT connected in Inverter mode. That means the transfer time from inverter mode to battery mode will be about 15ms. If connected load is over rated output capacity of the inverter and grid is available, this inverter will allow grid to provide power to the loads and PV power to charge battery. Otherwise, this inverter will activate fault protection. Battery charging source: 1. PV or Grid: If there is remaining PV power after supporting the loads, it will charge battery first. Only until PV power is not available, grid will charge battery. 2. PV only: It is only allow PV power to charge battery. 3. None: It is not allowed to charge battery no matter it’s PV power or grid. NOTE: It’s allowed to set up AC charging duration.
Load supply source: When PV power is available: 1st PV, 2nd Battery, 3rd Grid PV power will provide power to the load first. If it’s not sufficient, battery power will back up the load. Only after battery power is running, Grid will back up the load. When PV power is not available: 1. 1st Grid, 2nd Battery: Grid will provide power to the load at first. If grid is not available, battery power will provide power backup. 2. 1st Battery, 2nd Grid: Battery power will provide power to the load at first. If battery power is running out, grid will back up the load. NOTE: This option will become ineffective during AC charging time and the priority will automatically become 1st Grid and 2nd Battery order. Otherwise, it will cause battery damage.

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Operation

13-1. Interface The operation LCD panel, shown in the chart below, includes four touchable function keys and a LCD display to indicate the operating status and input/output power information.

LCD display
Touchable function keys
NOTICE: To accurately monitor and calculate the energy generation, please calibrate the timer of this unit via software every one month. For the detailed calibration, please check the user manual of bundled software. 13-2. LCD Information Define

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Function
Indicates AC input voltage and frequency. V: voltage, Hz: frequency, L1/L2/L3: Line phase
Indicates AC output power, voltage, frequency, or current. kw: active power, V: voltage, Hz: frequency, A: current L1/L2/L3: AC output phase
Indicates PV input voltage, power or current. V: voltage, W: power, P1: PV input 1, P2: PV input 2 A: current

Allow AC and PV charging

Only PV charging is allowed
Indicates battery voltage, battery current, charging status or battery parameters V: voltage, A: current, Li-ion: Lithium-ion battery type
Indicates battery level in battery mode.

Indicates the warning and fault codes.

Indicates date and time or the date and time users set for querying energy generation.
Indicates solar panels. Icon flashing indicates PV input voltage is out of range.
Indicates utility. Icon flashing indicates utility voltage or frequency is out of range. Indicates battery condition. And the lattice of the icon indicates battery capacity.

Icon to discharge.

flashing indicates battery is not allowed

Icon

flashing indicates the battery voltage is too low.

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Indicates AC output for loads is enabled and inverter is providing power to the connected loads. Indicates AC output for loads is enabled but there is no power provided from inverter. At this time, no battery and the utility are available. Only PV power exists but is not able to provide power to the connected loads. Indicates overload. Indicates parallel operation is working.

13-3. Touchable function keys

Function Key

Operation

Function

Enter query menu.

Enter/ON

Quick touch.
Touch and hold the button for approximately 3 seconds no matter the utility is detected or not.

If it’s in query menu, touch this button to confirm selection or entry.
This inverter is able to provide power to connected loads via AC output connector.

Quick touch.

Return to previous menu.

ESC/OFF

Touch and hold the button until the buzzer continuously Turn off power to the loads.

sounds.

Up

Quick touch.

Select last selection or increase value.

If it’s in query menu, press this button to jump to next selection

Down

Quick touch.

or decrease value.

Mute alarm in standby mode or

battery mode.

Touch and hold these two buttons for 2 seconds.

Enter setting mode.

NOTE: If backlight shuts off, you may activate it by touching any button.

13-4. Cold start button (located on the side of the inverter) Quick press to wake up inverter when the input power is supplied from battery only. Pouch and hold the buttons for 3 seconds to turn on the AC output of the inverter.
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13-5. LCD Setting

After touching and holding “UP” and “DOWN” button for 2 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.

Prog ram

Description

Selectable option

Escape

00

Exit setting mode

110Vac 01 Output voltage

120Vac(default)

02

Output frequency

50Hz User-Defined(default)

Pylontech battery

03 Battery type

WECO battery

Soltaro battery

60Hz(default)
If “User Defined” is selected, battery charge voltage and low DC cut off voltage can be set up in program 4, 7, 8 and 9. If selected, programs of 4, 7, 8 and 9 will be automatically set up. No need for further setting.
If selected, programs of 4, 7, 8 and9 will be autoconfigured per battery supplier recommended. No need for further adjustment. If selected, programs of 4, 7, 8and 9 will be automatically set up. No need for further setting.

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Sun Gold Power Inc 03 Battery type

LIb-protocol compatible battery
3party Lithium battery
VSC

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Select “LIb” if using Lithium battery compatible to Lib protocol. If selected, programs of4, 7, 8and 9 will be automatically set up. No need for further setting.
If selected, programs of 4, 7, 8 and 9 will be automatically set up. No need for further setting. Please contact the battery supplier for installation procedure. If selected, standard CAN protocol will be supported.

Maximum

60A(default)

charging

current:

To configure

total charging

current for

solar and

04 utility

chargers.

(Max. charging

current =

utility charging

current + solar

charging

current)

30A(default)

Maximum

05 utility charging

current

Maximum 06 discharging
current

150A(default)

Setting range is 1A, then from 10A to 120A. Increment of each click is 10A.
Setting range is from 10A to 120A. Increment of each click is 10A.
Setting range is from 10A to 150A. Increment of each click is 10A.

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Default setting: 56.0V
Bulk charging 07 voltage
(C.V voltage)

Floating

08

charging voltage

Default setting: 54.0V

Default setting:42.0 Low DC cut off battery voltage 09 setting when grid is unavailable

Battery re-

Default setting:48.0

discharging

10 voltage when

grid is

unavailable

Default setting:48.0

Low DC cut off

11

battery voltage when grid is

available

Battery re-

Default setting:54.0

discharging

12 voltage when

grid is

available

Grid-tie with backup

Operation

Mode

13

(Refer to Section 12 for Off-Grid

the detailed

operation)

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Setting range is from 48.0V to 62.0V. Increment of each click is 0.1V.
Setting range is from 48.0V to 62.0V. Increment of each click is 0.1V. Note: This setting value must not exceed the C.V voltage. Setting range is from 42.0V to 62.0V. Increment of each click is 0.1V. Note: This setting value must not exceed the C.V voltage. Setting range is form 42.0V to 62.0V. Increment of each click is 0.1V. Note: This setting value must not exceed the C.V voltage. Setting range is from 40.0V to 62.0V voltage. Increment of each click is 0.1V. Note: This setting value must not exceed the C.V voltage. Setting range is from 40.0V to 62.0V voltage. Increment of each click is 0.1V. Note: This setting value must not exceed the C.V voltage. PV power can feed-in back to grid, provide power to the load and charge battery.
PV power only provides power to the load and charge battery. No feed-in back to grid is allowed.

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Operation

Grid-Tie

PV power only can feed-in

Mode

back to grid.

13

(Refer to Section 12 for

the detailed

operation)

Grid-tie with backup Mode

Grid-tie with backup I

Battery-Load-Grid:

PV power will charge battery

first, then provide power to

the load. If there is any

remaining power left, it will

feed-in to the grid.

Grid-tie with backup II

Load-Battery-Grid:

PV power will provide power

to the load first. Then, it will

charge battery. If there is

any remaining power left, it

will feed-in to the grid.

Grid-tie with backup III

Load-Grid-Battery:

PV power will provide power

to the load first. If there is

more PV power available, it

PV energy

will feed-in to the grid. If

14 supply priority

feed-in power reaches max.

setting

feed-in power setting, the

remaining power will charge

battery.

Grid-tie with backup IV

If selected, it is only allowed

to set up peak time and off-

peak for electricity demand.

Programs of 15, 17, 18, 19

and 20 can’t be set and only programs of 21, 22, 23 and

24 can be set.

Off-Grid Mode

Off-Grid I

Load-Battery:

PV power will provide power

to the load first and then

charge battery. Feed-in to

the grid is not allowed under

this mode. At the same time,

the grid relay is

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Off-Grid II

14

PV energy supply priority

Off-Grid III

setting

Grid-Tie Mode Solar and Utility(default)

Only Solar

15

Charger source priority

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Battery-Load: PV power will charge battery first. After battery is fully charged, if there is remaining PV power left, it will provide power to the load. Feed-in to the grid is not allowed under this mode. At the same time, the grid relay is connected. Load-Battery: PV power will provide power to load first and then charge battery. Feed-in to the grid is not allowed under this mode. The grid relay is NOT connected.
PV power only feeds-in to the grid. No priority setting is available.
If there is remaining PV power after supporting the loads, it will charge battery first. Only until PV power is not available, grid will charge battery. It is only allow PV power to charge battery.

None

Feed to grid disable

(default)

16

Feed to grid function

It is not allowed to charge battery no matter it’s PV power or grid.
Feed to grid enable

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Battery energy feed to grid

Battery feed to grid disable (default)

Battery feed to grid enable

17

function when

PV energy is

available

Battery energy feed to grid

Battery feed to grid disable (default)

Feed to grid enable

18

function when

PV energy is

unavailable.

SUB(default)

Load supply

19

source (PV is available)

SBU

UB(default)

20

Load supply source (PV is

BU

unavailable)

Start charging 00:00 (Default)

21

time for first duration of AC

charge

Solar-grid-battery: PV power will provide power to the load first. If it’s not sufficient, grid will provide power to the load. If grid is not available at the same time, battery power will back up.
Solar-Battery-Grid: PV power will provide power to the load first. If it’s not sufficient, battery power will provide power to the load. When battery power is running out or not available, grid will back up the load.
Grid-Battery: Grid will provide power to the load at first. If grid is not available, battery power will provide power backup.
Battery-Grid: Battery power will provide power to the load at first. If battery power is running out, grid will back up the load. This setting is ineffective during of AC charging. The setting range of start charging time for AC charger is from 00:00 to 23:00. Increment of each click is 1 hour.

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Stop charging 00:00 (Default)

22

time for first duration of AC

charge

Start charging 00:00 (Default)

time for

23

second

duration of AC

charge

Stop charging 00:00 (Default)

time for

24

second

duration of AC

charge

00:00 (Default)

Scheduled

25

time for AC

output on

Scheduled

00:00 (Default)

26

time for AC

output off

LCD is always on

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The setting range of stop charging time for AC charger is from 00:00 to 23:00. Increment of each click is 1 hour. The setting range of start charging time for AC charger is from 00:00 to 23:00. Increment of each click is 1 hour. The setting range of start charging time for AC charger is from 00:00 to 23:00. Increment of each click is 1 hour. The setting range of AC output on is from 00:00 to 23:00. Increment of each click is 1 hour.
The setting range of AC output off is from 00:00 to 23:00. Increment of each click is 1 hour.
The LCD turns off after 30s

The LCD turns off after

60s(default)

27

LCD off waiting time

The LCD turns off after 300s.

The LCD turns off after 600s

Alarm on(default)

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Alarm control

41

Alarm off

Sun Gold Power Inc

Alarm on in standby

Alarm control mode(default)

29

at standby

mode

www.sungoldpower.com Alarm off in standby mode

Alarm on in battery mode Alarm off in battery mode

Alarm control (default)

30

at battery

mode

Activate lithium battery

Activate lithium battery disable(default)

31

when the

device is

powered on

32

AC output mode

Single: This inverter is used in single phase application (default)

Activate lithium battery enable
Parallel: This inverter is operated in parallel system.

Disable(default)

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Generator as AC source

Disable(default)

34

Wide AC input range

Disable (default)

External CT

function

36

(Refer to

PARALLEL 50A

Appendix III

for the details)

Enable Enable SINGLE 50A SINGLE 200A

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External CT

PARALLEL 200A

function

36

(Refer to

Appendix III

for the details)

PV parallel

Disable(default)

*This setting is

to determine

37

whether PV1

and PV2 can be

connected to the

same PV source.

Disable(default)

38

AC output coupling

Enable

Disable(default)

Generator port

Function

39

(Refer to

Enable

Appendix IV

for the details)

L1 and L2

120

phase angle

40

*Please turn off the inverter

output before

setting.

Disable(default)

Rapid

41

Shutdown Function

(optional)

Enable

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Enable
If selected, the AC output purely works as load connector. If selected, this inverter will allow on-grid inverter to feed-in power.
If selected, the input of generator port will be disabled. If selected, genertor port will be activated.
180(default)
If selected, RSD dry contact will be idle.
If selected, close the RSD dry contact, the machine will shut down the output and stop working. Disconnect the dry contact and the machine will return to its pre-closure state.

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95

Time setting ­ Minute

96

Time setting ­ Hour

97

Time setting­ Day

98

Time setting­ Month

99

Time setting ­ Year

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For minute setting, the range is from 00 to 59.
For hour setting, the range is from 00 to 23.
For day setting, the range is from 00 to 31.
For month setting, the range is from 01 to 12.
For year setting, the range is from 17 to 99.

13-5. Query Menu Operation
The display shows current contents that have been set. The displayed contents can be
changed in query menu via button operation. Press `Enter’ button to enter query menu. There are seven query selections: Input voltage or frequency of AC input. Frequency, voltage, power or load percentage of AC output. Input voltage or power of PV input. Battery voltage or capability percentage.

Setting Display Procedure Input voltage or frequency of AC input
Procedure

1. Enter

2. Enter

3. Enter

Up

Down

Up 4.
Down

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Frequency, voltage, power or percentage of AC output Procedure

1. Enter

Up

Down

3. Enter
   Up 4.
   Down

4. Enter

Input voltage or power of PV input. Procedure

1. Enter

Up

Down

3. Enter

Up 4.
Down

5. Enter

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Switch LCD Displayed Information

The LCD display information will be switched in turns by pressing ” selectable information is switched as the following table in order.

Selectable

LCD display

information

Real date2020-08-18

” or ” ” key. The

Real date

Real time10:08 Real time

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PV energy generated this month =8Wh.

PV energy generated today.

PV energy generated this month = 8kWh.
PV energy generated this month.
PV energy generated this year = 108kWh
PV energy generated this year.

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Total PV energy generation = 108kWh.

PV energy generated totally.

Main CPU version 01.01.
Main CPU version checking

Communication board version 01.01.
Communication board version checking

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Sun Gold Power Inc Warning code08
Warning code

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13-6. Operation Mode & Display Below is only contained LCD display for grid- tie with backup mode (I). If you need to know other operation mode with LCD display, please check with installer.

Inverter mode with grid connected This inverter is connected to grid and working with DC/INV operation.

LCD Display

Description

PV power is sufficient to charge

battery, provide power to loads, and

then feed in to the grid.

PV power is sufficient to charge the battery first. However, remaining PV power is not sufficient to back up the load. Therefore, remaining PV power and the utility are supplying power to the connected load.

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PV power is generated, but not sufficient enough to charge battery by itself. PV power and the utility are charging battery at the same time. And the utility is also supplying power to the connected load.
PV power is sufficient to provide power to loads and feed power back to the grid.
PV power and utility are providing power to the connected loads because of insufficient PV power.
Only utility is charging battery and providing power to connected loads.

Inverter mode without grid connected This inverter is working with DC/INV operation and not connecting to the grid.

LCD Display

Description

PV power is sufficient to charge

battery and provide power to the

connected loads.

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PV power is generated, but not sufficient to power loads by itself. PV power and battery are providing power to the connected loads at the same time.
Only battery power is available to provide power to connected loads.

Only PV power supplies power to
connected loads. Notice: The inverter doesn’t support battery hot pluggable. When the inverter is working with solar input, turn off the inverter first and then connect the battery.

Bypass mode

The inverter is working without DC/INV operation and connecting to the loads.

LCD Display

Description

Only utility is available to provide

power to connected loads.

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Standby mode :

The inverter is working without DC/INV operation and load connected.

LCD Display

Description

This inverter is disabled on AC output

or even AC power output is enabled,

but an error occurs on AC output.

Only PV power is sufficient to charge

battery.

If PV, battery or utility icons are flashing, it means they are not within acceptable working range. If they are not displayed, it means they are not detected.

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Charging Management

Charging Parameter
Charging current
Floating charging voltage (default)
Max. absorption charging voltage (default) Battery overcharge protection
Charging process based on default setting. 3 stages: First ­ max. charging voltage increases to 56V; Second- charging voltage will maintain at 56V until charging current is down to 12 Amp; Third- go to floating charging at 54V.

Default Value 60A 54.0 Vdc 56.0 Vdc 64.0 Vdc
U Bulk Voltage Float Voltage
I

Note
It can be adjusted via software from 5Amp to 120Amp.
It can be adjusted via software from 50Vac to 62Vdc. It can be adjusted via software from 50Vac to 62Vdc.

Bulk

Absorption

Floating

time

time
This inverter can connect to battery types of sealed lead acid battery, vented battery, gel battery and lithium battery. The detail installation and maintenance explanations of the external battery pack are provided in the manufacturer’s external battery pack of manual.

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If using sealed lead acid battery, please set up the max. charging current according to below formula:
The maximum charging current = Battery capacity (Ah) x 0.2
For example, if you are using 300 Ah battery, then, maximum charging current is 300 x 0.2=60 (A). Please use at least 50Ah battery because the settable minimum value of charging current is 10A. If using AGM/Gel or other types of battery, please consult with installer for the details.
Below is setting screen from software:

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Maintenance & Cleaning

Check the following points to ensure proper operation of whole solar system at regular
intervals. Ensure all connectors of this inverter are cleaned all the time. Before cleaning the solar panels, be sure to turn off PV DC breakers. Clean the solar panels, during the cool time of the day, whenever it is visibly dirty. Periodically inspect the system to make sure that all wires and supports are
securely fastened in place.

WARNING: There are no user-replaceable parts inside of the inverter. Do not attempt to service the unit yourself.

Battery Maintenance
Servicing of batteries should be performed or supervised by personnel knowledgeable about batteries and the required precautions.
When replacing batteries, replace with the same type and number of batteries or battery packs.
The following precautions should be observed when working on batteries: a) Remove watches, rings, or other metal objects. b) Use tools with insulated handles. c) Wear rubber gloves and boots. d) Do not lay tools or metal parts on top of batteries. e) Disconnect charging source prior to connecting or disconnecting battery terminals. f) Determine if battery is inadvertently grounded. If inadvertently grounded, remove source from ground. Contact with any part of a grounded battery can result in electrical shock. The likelihood of such shock can be reduced if such grounds are removed during installation and maintenance (applicable to equipment and remote battery supplies not having a grounded supply circuit).
CAUTION: A battery can present a risk of electrical shock and high short- circuit current. CAUTION: Do not dispose of batteries in a fire. The batteries may explode. CAUTION: Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic.

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Trouble Shooting

When there is no information displayed in the LCD, please check if PV module/battery/grid connection is correctly connected. NOTE: The warning and fault information can be recorded by remote monitoring software.
16-1. Warning List

There are 17 situations defined as warnings. When a warning situation occurs,

icon will flash. Touch “up” or “down” to select displaying warning code. If there are several codes, it will display in sequences. Please contact your installer when you

couldn’t handle with the warning situations.

Code Warning Event

Icon Description

(flashing)

01

Line voltage high loss

Grid voltage is too high.

02

Line voltage low loss

Grid voltage is too low.

03

Line frequency high loss

Grid frequency is too high.

04

Line frequency low loss

Grid frequency is too low.

05

Line voltage loss for long

time

06

Ground Loss

Grid voltage is higher than 253V. Ground wire is not detected.

07

Island detect

Island operation is detected.

08

Line waveform loss

09

Line phase loss

10

EPO detected

The waveform of grid is not suitable for inverter. The phase of grid is not in right sequence. EPO is open.

11

Overload

Load exceeds rating value.

12

Over temperature

13

Batter voltage low

14

Battery under-voltage when

grid is loss

15

Battery open

16

Battery under-voltage when

grid is OK

17

Solar over voltage

The temperature is too high inside. Battery discharges to low alarm point. Battery discharges to shutdown point. Battery is unconnected or too low. Battery stops discharging when the grid is OK. PV voltage is too high.

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18

RSD is close

RSD is close

32

Communication lost between

DSP and communication

board

SW The battery output will not

OFF be turned on when Grid is

loss.

Communication lost between DSP and communication board
The battery output will not be turned on when Grid is loss.

16-2. Fault Reference Codes

When a fault occurs, the icon

will flash as a reminder. See below for fault codes

for reference.

Situation

Fault Code

Fault Event

Possible cause

Solution

01

Bus voltage over

Surge

1. Restart the inverter.

2. If the error message still

remains, please contact your

installer.

02

BUS voltage under PV or battery

1. Restart the inverter

disconnect suddenly 2. If the error message still

remains, please contact your

installer.

03

BUS soft start time Internal

Please contact your installer.

out

components failed.

04

INV soft start time Internal

Please contact your installer.

out

components failed.

05

INV over current

Surge

1. Restart the inverter.

2. If the error message still

remains, please contact your

installer.

06

Over temperature Internal

1. Check the ambient

temperature is too temperature and fans.

high.

2. If the error message still

remains, please contact your

installer.

07

Relay fault

Internal

Please contact your installer.

components failed.

08

CT sensor fault

Internal

Please contact your installer.

components failed.

09

Solar input power 1. Solar input driver 1. Please check if solar input

abnormal

damaged.

voltage is higher than 600V.

2. Solar input power 2. Please contact your installer.

is too much when

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voltage is more

than 600V.

11

Solar over current Surge

1. Restart the inverter.

2. If the error message still

remains, please contact your

installer.

12

GFCI fault

Leakage current

1. Check the wire and panels

exceeds the limit. which may cause the leakage.

13

PV ISO fault

The resistance

2. If the error message still

between PV and

remains, please contact your

ground is too low. installer.

14

INV DC current over Utility fluctuates.

1. Restart the inverter.

2. If the error message still

remains, please contact your

installer.

16

GFCI sensor fault

GFCI sensor failed. Please contact your installer.

17

DSP and MCU Com. Communication loss Please contact your installer.

Loss

between DSP and

MCU

22

Battery high voltage Battery voltage

1. Check the battery voltage.

fault

exceeds the limit. 2. If the error message still

remains, please contact your

installer.

23

Over load

The inverter is

Reduced the connected load

loaded with more

by switching off some

than 110% load and equipment.

time is up.

26

INV short

Output short

Check if wiring is connected

circuited.

well and remove abnormal

load.

27

Fan lock

Fan failed.

Please contact your installer.

32

DC/DC over current Battery voltage

1. Restart the inverter.

fluctuates.

2. If the error message still

remains, please contact your

installer.

33

INV voltage low

Internal

Please contact your installer.

components failed.

34

INV voltage high

Internal

Please contact your installer.

components failed.

35

Wire connection

Internal wires

Please contact your installer.

fault

loosen.

36

OP voltage fault

Grid connects to

Don’t connect the grid to the

output terminal

output terminal.

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38

Short circuited on Short circuited on Please contact your installer.

PV input

PV input

47

The L1/L2 of the

Output short

Check if all wiring is connected

inverter is short-

circuited.

well and remove abnormal

circuited.

loads.

1. Restart the inverter.

2. Check if L1/L2/N cables are

not connected with wrong

Current feedback

sequence in all inverters.

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into the inverter is

3. Make sure the sharing

detected.

cables are connected in all

inverters.

4. If the problem remains,

please contact your installer.

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The firmware version of each inverter is not the same.

Software differences do not support parallel.

1. Update all inverter firmware to the same version.
2. After updating, if the problem still remains, please contact your installer.

1. Check if sharing cables are

The output current

connected well and restart

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of each inverter is

the inverter.

different.

2. If the problem remains,

please contact your installer.

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CAN data loss

1. Check if communication

81

Host data loss

cables are connected well

82

Synchronization data loss

and restart the inverter. 2. If the problem remains,
please contact your installer.

88

BUS Balances

Internal

Please contact your installer.

overcurrent

components failed.

89

BUS balance

Internal

Please contact your installer.

hardware Fault

components failed.

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17. Specifications

MODEL

WP LV 6KW

RATED POWER

6000 W

PV INPUT (DC)

Maximum DC Power

7500 W

Nominal DC Voltage

360 VDC

Maximum DC Voltage

600 VDC

Working DC Voltage Range

120 VDC ~ 550 VDC

Start-up Voltage / Initial Feeding Voltage

125 VDC / 160 VDC

MPP Voltage Range / Full Load MPP Voltage Range

120 VDC ~ 550 VDC

Maximum Input Current

2*15 A

Isc PV (absolute maximum)

21 A

Max. inverter back feed current to the array

0 A

GRID OUTPUT (AC)

Nominal Output Voltage

120 VAC (P-N) / 208 VAC (P-P)/ 240 VAC(P-P)

Output Voltage Range

105.5 – 132 VAC per phase

Output Frequency Range

47.5 ~ 51.5 Hz or 59.3~ 60.5Hz

Nominal Output Current

25A per phase

Inrush Current/Duration

30 A per phase / 20ms

Maximum Output Fault Current/Duration

81 A per phase / 1ms

Maximum Output Overcurrent Protection

81 A per phase

Power Factor Range

0.9 lead ­ 0.9 lag

AC INPUT

AC Start-up Voltage

85 VAC per phase

Auto Restart Voltage

90 VAC per phase

Acceptable Input Voltage Range

85 – 140 VAC per phase

Nominal Frequency

50 Hz / 60 Hz

AC Input Power

6000VA/6000W

Maximum AC Input Current

40 A

Inrush Input Current

40 A / 1ms

BATTERY MODE OUTPUT (AC)

Nominal Output Voltage

120 VAC (P-N) / 208 VAC (P-P)/ 240 VAC(P-P)

Output Frequency

50 Hz / 60 Hz (auto sensing)

Output Waveform

Pure sine wave

Output Power

6000VA/6000W

Efficiency (DC to AC)

91%

BATTERY & CHARGER (Lead-acid/Li-ion)

DC Voltage Range

40 ­ 62 VDC

Nominal DC Voltage

48 VDC

Maximum Battery Discharging Current

150 A

Maximum Charging Current

120 A

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GENERAL

PHYSICAL

Dimension, D X W X H (mm)

215.5 x 515 x 700

Net Weight (kgs)

41

INTERACE

Communication Port

RS-232/USB

Intelligent Slot

RS232/USB,BMS, WIFI

ENVIRONMENT

Protective Class

I

Ingress Protection Rating

IP65

Humidity

0 ~ 90% RH (No condensing)

Operating Temperature

-25 to 60°C (Power derating above 45°C)

Altitude

Max. 2000m*

• Power derating 1% every 100m when altitude is over 1000m.

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Appendix

I: Parallel Installation Guide

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Introduction This inverter can be used in parallel with maximum 6 units. The supported maximum
output power is 36KW/36KVA.

Parallel cable You will find the following items in the package:

Parallel communication cable Overview

Current sharing wires

1. Current sharing port 2. Parallel communication port
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Mounting the Unit When installing multiple units, please follow below chart.

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NOTE: For proper air circulation to dissipate heat, it’s necessary to 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.

Wiring Connection The cable size of each inverter is shown as below:
Recommended battery cable and terminal size for each inverter:

Ring terminal:

Ring Terminal

Wire Size

Cable mm2

Dimensions D (mm) L (mm)

Torque value

2

33.6

8.4

42.5

7~12 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:

AWG no.

Conductor crosssection

Torque

10~8 AWG

5.5~10 mm2

1.4~1.6Nm

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 63

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inverters connected in parallel. Regarding cable size of AC input and output, please also follow the same principle.

CAUTION!! Please install a breaker at the battery side. This will ensure the inverter can be securely disconnected during maintenance and fully protected from overcurrent of battery.

Recommended breaker specification of battery for each inverter:
One unit
200A/60VDC 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 one unit. “X” indicates the number of inverters connected in parallel.

Recommended battery capacity

Inverter parallel

2

3

4

5

6

numbers

Battery Capacity

400AH 600AH 800AH 1000AH 1200AH

CAUTION! Please follow the battery charging current and voltage from battery spec to choose the suitable battery. The wrong charging parameters will reduce the battery lifecycle sharply.

Approximate back-up time table

Load (W)
12000 18000 24000 30000 36000

Backup Time
@ 48Vdc 400Ah (min) 90 60 40 35 30

Backup Time
@ 48Vdc 600Ah (min) 140 90 70 55 50

Backup Time
@ 48Vdc 800Ah (min) 180 120 90 75 60

Backup Time
@ 48Vdc 1000Ah (min)
240 160 120 90 80

Backup Time
@ 48Vdc 1200Ah (min)
280 180 140 110 100

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

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Sun Gold Power Inc Inverters Configuration Two inverters in parallel: Power Connection
L1 L2 N G L1 L2 N
Communication Connection
Three inverters in parallel: Power Connection

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Sun Gold Power Inc Communication Connection
Four inverters in parallel: Power Connection

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Communication Connection
Five inverters in parallel: Power Connection

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Sun Gold Power Inc Communication Connection
Six inverters in parallel: Power Connection
Communication Connection

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Setting and LCD Display Setting Program: The parallel function setting can be set up through software or LCD setting #32. When setting through software, you can set the inverter one by one through USB or RS232 port.
Through software: Setting parallel for output in parameters setting, enable/disable.

Through LCD operation

In LCD program 32, you may select single or parallel.

Single: This inverter is
operated in Single
system.(default) 32 Parallel for output

Parallel: This inverter is operated in parallel system.

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Commissioning

Step 1: Check the following requirements before commissioning: Check if all wires area connected correctly. Ensure all breakers in Line wires of load side are open and each Neutral wire of

each unit is connected together.

Step 2: Turn on each unit and set “enable parallel for output” on SolarPower or

SolarPower Pro. Or set “PAL” in LCD program 32. And then, shut down all units. 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 followingorder inverters. However, these inverters will automatically restart. If AC power is detected, 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.

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Appendix II: The Wi-Fi Operation Guide
1. Introduction Wi-Fi module can enable wireless communication between hybrid inverters and
monitoring platform. Users have complete and remote monitoring and controlling experience for inverters when combining Wi-Fi module with SolarPower 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. SolarPower 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 SolarPower App.
Android system iOS system Or you may find “SolarPower Wi-Fi” app from the Apple® Store or “SolarPower” in Google® Play Store.
2-2. Initial Setup Step 1: Registration at first time After the installation, please tap the shortcut icon to access the APP on your mobile screen. In the screen, tap “Register” to access “User Registration” page. Fill out all
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required information accordingly. You can scan the Wi-Fi Module PN by tapping icon . Tap “Register” after you have completed the registration.

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.

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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 ” Wi-Fi module is connected successfully.
Step 3: Wi-Fi Network settings

” button when

Tap

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

password.

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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

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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. Time zone and Wi-Fi module PN are required information. Tap “Confirm” to complete and the added Wi-Fi module can be reviewd in the Device list.
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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.

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.
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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 beStandby 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.
Battery ModeInverter will power the load from the batter with or without PV charging. Only PV source can charge battery.
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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, andWi-Fi Module Informationby swiping left.
Swipe left
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Basic Informationdisplays basic information of the inverter, including AC voltage,
AC frequency, PV input voltage, Battery voltage, Battery capacity, Charging current, Discharging 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. Rated Information displays 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 records of unit information and setting. 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.
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Parameter setting list: Item

Output Source Priority

Input Voltage Range

Output Setting

AC Output Rating Voltage

AC Output Rating Frequency

Battery Type Battery Cut-off Voltage

Bulk Charging Voltage

Battery Float Voltage

Max Charging Current

Battery Parameters
Setting

Max AC Charging Current Charging Source Priority Back To Grid Voltage

Back To Discharge Voltage Overload Auto Restart

Overload Temperature Auto Restart

Overload Bypass

Beeps While Primary Source Interrupt Buzzer

Enable/Disable Items

Backlight

LCD Screen Return To Default Display

Fault Code Record

Description Output source priority selection Input voltage range selection To set output rating voltage
To set output rating frequency
Select connected battery type Set battery cut-off voltage Set battery bulk charging voltage Set battery floating charging voltage To configure total charging current for solar and utility chargers.
Set maximum utility charging current
To configure charger source priority
Set battery voltage to stop discharging when grid is available Set battery voltage to stop charging when grid is available If disabled, the unit won’t be restarted after overload occurs. If disabled, the unit won’t be restarted after over-temperature fault is solved. If enabled, the unit will enter bypass mode when overload occurs. If enabled, buzzer will alarm when primary source is abnormal. If disabled, buzzer won’t be on when alarm/fault occurred. If disabled, LCD backlight will be off when panel button is not operated for 1 minute. 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 enabled, fault code will be recorded in the inverter when any fault happens.

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Item
Others Settings
Restore to the defaults

Description

Solar Supply Priority
Reset PV Energy Storage Start Time For Enable AC Charge Working
Ending Time For Enable AC Charge Working
Scheduled Time For AC Output On
Scheduled Time For AC Output Off
Country Customized Regulations Set Date Time

Set solar power as priority to charge the battery or to power the load. If clicked, PV energy storage data will be reset. The setting range of start charging time for AC charger is from 00:00 to 23:00. The increment of each click is 1 hour. The setting range of stop charging time for AC charger is from 00:00 to 23:00. The increment of each click is 1 hour. The setting range of scheduled time for AC output on is from 00:00 to 23:00. The increment of each click is 1 hour. The setting range of scheduled time for AC output off is from 00:00 to 23:00. The increment of each click is 1 hour. Select inverter installed area to meet local regulation.
Set date time.

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

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Appendix III: The CT Operation Guide
With CT connected, hybrid inverter can be easily integrated into the existing household system. It’s to arrange self-consumption via CT to control power generation and battery charging of the inverter.
1. Single commissioning
Step 1. Power off the inverter and connect the CT circuit according to the wiring diagram below.

Step 2: Power on the inverter, wake up the LCD and modify LCD setting. Enter LCD setting #13 and set up as any Grid-tie with backup mode. The CT will not be enable if not setting to grid-tie with backup.
Step 3: Enter LCD setting #36 and select “single 50A” or “single 200A” based on your CT specifications.
Disable (default)

External CT 36 function

SINGLE 50A SINGLE 200A

PARALLEL 50A PARALLEL 200A

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2. Parallel commissioning
Step 1. Power off the inverter and connect the CT sensor according to the wiring diagram below. For other parallel circuits, please follow Appendix I.

Step 2: Power on all inverters, wake up the LCD and modify the Settings. Enter LCD setting #13 and set up as any Grid-tie with backup mode. The CT will not be enabled if not setting to grid-tie with backup.
Step 3: Set up LCD setting #36 on parallel inverters. Enter LCD setting #36 and select “parallel 50A” or “parallel 200A” based on your CT specifications.
Disable (default)

SINGLE 50A

36

External CT function

SINGLE 200A

PARALLEL 50A PARALLEL 200A

IMPORTANT ATTENTION : If applying CT function during parallel operation, it only needs one inverter from
parallel system connected to CT sensor. Be sure to enable #36 external CT function
on the one inverter with CT connected and set up “Disable” on the remaining inverters. Otherwise, it will cause CT function not working during parallel operation.

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3. Software setup
In addition to LCD operation, you also can setup through software. Refer to software screen as below. Enter “Parameters setting” to enable “External CT relay”.

After CT is enabled, setting 14 will be automatically changed to HBD2; Setting 15 will automatically turn off AC charging; Setting16 will automatically turn off feed network.
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Appendix IV: The Generator Operation Guide

Through the generator port, the inverter can realize multiple groups of redundant backup power supply. In the absence of grid or solar power, users have the option of using a generator to charge the battery and power the load. Follow below steps to activate this function.

Step 1. Turn on the inverter and enable generator port function in LCD program

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(Select “GEN “).

Disable(default)

If selected, the input of

generator port will be

disabled.

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Generator port Function

Enable

If selected, generator port will be activated.

After setting, ”

” icon will flash on LCD display.

Step 2: You need to turn on the AC output of the inverter. The generator can only be

used in battery mode. Once generator port function is activated and power input of

generator enter the inverter, ”

” icon will be illuminated and input voltage/input

frequency will show on the LCD display.

Note: 1. When the generator is in use, the inverter will force the battery to charge. 2. When the generator is in use, the maximum charging current of the inverter will be limited to 100A, and the user can choose a lower charging current by setting LCD #05. 3. The generator will be used when the power grid is lost. If the power grid is restored, the generator will stop being used.
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References

• Home Solar System Kit,Power Inverter,Solar Inverter,Off Grid Inverter

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