Huawei SUN2000L Single phase Residental Solar Inverter User guide

Brand: Huawei

Model: SUN2000L Single phase Residental Solar Inverter

Type: User guide

SUN2000L-(2KTL–5KTL), SUN2000-(2KTL–5KTL)-

L0, and SUN2000L-(3KTL-5KTL)-CN Replacement

Quick Guide

Issue: 02

Part Number: 31500GCH

Date: 2022-01-18

HUAWEI TECHNOLOGIES CO., LTD.

1. The information in this document is subject to change without notice. Every

effort has been made in the preparation of this document to ensure accuracy

of the contents, but all statements, information, and recommendations in this

document do not constitute a warranty of any kind, express or implied.

2. Before replacing the device, carefully read the SUN2000-(2KTL–6KTL)-L1 User

Manual to get familiar with product information and precautions. You can

download this document by scanning the QR code.

1SUN2000L-(2KTL–5KTL) Replacement Scenario

Remove SUN2000L-

(2KTL–5KTL). Install SUN2000-

(2KTL–6KTL)-L1. Install the PE

cable.

•Before removing the original SUN2000, ensure that the DC switch on the SUN2000 and all

the switches connected to the SUN2000 are set to OFF. Otherwise, the high voltage of the

SUN2000 may result in electric shocks.

•After the SUN2000 is powered off, the remaining electricity and heat may still cause electric

shocks and body burns. Therefore, put on protective gloves and dielectric boots and begin

operating the SUN2000 with specialized insulation tools five minutes after the power-off.

1. Power off the SUN2000 to be replaced.

2. Remove the AC connector and remove the AC output power cable from the mating socket for

future use.

Removing SUN2000L-(2KTL–5KTL)

1.1

Removing Cables from SUN2000L-(2KTL–5KTL) for Future Use

Install the

AC output

power cable.

Install DC

input power

cables.

Install the WLAN

antenna and

signal cables.

Check the installation

and power on the

SUN2000.

Commission

SUN2000-(2KTL–

6KTL)-L1.

Start

End

AC output port (AC)

3. Before replacing the device, check whether the configurations of SUN2000L-(2KTL–5KTL),

SUN2000-(2KTL–5KTL)-L0, and SUN2000L-(3KTL-5KTL)-CN can be viewed. If they can be

viewed, record the parameter settings for setting or checking parameters after the

replacement.

4. Before replacing the device, check whether the cables are long enough. If not, prepare

appropriate cables.

3. Remove the DC connectors and use a cable cutter to cut off the terminals of DC input power

cables. Set the cables aside for future use.

•The DC terminals of SUN2000L-(2KTL–5KTL) must be cut off. If the DC connectors of

SUN2000L-(2KTL–5KTL) are directly connected to SUN2000-(2KTL–6KTL)-L1, the SUN2000

may be burnt.

•If the SUN2000 is connected to a smart PV safety box, cut off the DC terminal connected to

the PV port on the SUN2000 and do not cut other DC terminals. Put the cables aside for

future use.

Cable

cutter

DC input terminals

COM port

•The method for removing battery connectors is the same as that for removing the DC

connectors.

•The battery terminals of SUN2000L-(2KTL–5KTL) must be cut off. If the battery connectors of

SUN2000L-(2KTL–5KTL) are directly connected to SUN2000-(2KTL–6KTL)-L1, the SUN2000

may be burnt.

Battery terminals (BAT+/BAT–)

5. (Optional) Remove the signal cable connectors from the COM and ALARM ports, and take

out the signal cables for future use.

If the SUN2000 is connected to a smart PV safety box, cut off the crimping terminal of the signal

cables and strip the cables for future use.

4. (Optional) Remove the battery connectors, cut off the terminals with a cable cutter, and put

the cables aside for future use.

ALARM port

Cable

cutter

1. (Optional) Open the anti-theft lock.

3. Remove the SUN2000 from the rear panel.

6. Disconnect the PE cable and remove the crimped OT terminal. Set the cable aside for future

use.

Removing the Mounting Bracket of SUN2000L-(2KTL-5KTL)

2. Remove the two hex screws.

Installing SUN2000-(2KTL–6KTL)-L11.2

•The marking-off template, mounting bracket, and M6x60 expansion bolts delivered with

SUN2000-(2KTL–6KTL)-L1 are not used during replacement.

•Prepare an anti-theft lock suitable for the lock hole diameter (Ф8 mm) and ensure that the

lock can be installed successfully. An outdoor waterproof lock is recommended.

(Optional) Install an anti-theft lock.

2. Remove the native hanging kit from

SUN2000-(2KTL–6KTL)-L1.

3. Install the hanging kit delivered with

SUN2000-(2KTL–6KTL)-L1.

4. Install the SUN2000 on the

mounting bracket.

5. Tighten screw assemblies.

Not used

1. (Optional) Install the locking

screw for the DC switch.

Installing the AC Output Power Cable to SUN2000-(2KTL–6KTL)-L1

1.4

•It is recommended that silica gel or paint be applied around the ground terminal after the PE

cable is connected.

•It is recommended that you connect the PE cable to the right ground point and reserve the

other ground point.

Installing the PE Cable for SUN2000-(2KTL–6KTL)-L1

1.3

Before connecting cables, ensure that the DC switch on the SUN2000 and all the switches

connected to the SUN2000 are set to OFF. Otherwise, the high voltage of the SUN2000 may

result in electric shocks.

Ground

point

AC output port (AC)

Installing DC Input Power Cables for SUN2000-(2KTL–6KTL)-L1

1.5

1. Assemble DC connectors.

Click

Positive metal terminal

Negative metal terminal

Ensure that the cables

cannot be pulled out

after being crimped.

Positive connector

Negative

connector

Use the wrench

shown in the figure to

tighten the locking

nut. When the wrench

slips during the

tightening, the

locking nut has been

tightened.

Ensure that cable

polarities are

correct.

PV-CZM-22100/19100 (Staubli)

PV-MS-HZ open-

end wrench

(Staubli)

DC input terminals

2. Install the DC input power cables.

If the original DC input power cables are not long enough, add DC input extension cables.

1. Ensure that the PV module output is well insulated to ground.

2. Use the positive and negative Staubli MC4 metal terminals and DC connectors supplied with

the SUN2000. Using incompatible positive and negative metal terminals and DC connectors

may result in serious consequences. The caused device damage is not covered under

warranty.

3. The DC input voltage of the SUN2000 shall not exceed the maximum input voltage under any

circumstance.

4. Before installing DC input power cables, label the cable polarities to ensure correct cable

connections.

5. If the polarities of the DC input power cables are reversed, do not operate the DC switch or

the positive/negative connector immediately. Failing to do so may cause device damage,

which is not covered under warranty. Wait until the night when solar irradiance declines and

the PV string current drops to below 0.5 A. Then set the DC switch to OFF, remove the

positive and negative connectors, and correct the polarities of the DC input power cables.

Click

Pull the DC input power cables back to

ensure that they are connected securely.

Extension cables for DC terminals

(Optional) Installing Battery Cables for SUN2000-(2KTL–6KTL)-L1

1.6

Assemble the positive and negative connectors by following the instructions in section 1.5

"Installing DC Input Power Cables."

Battery terminals (BAT+/BAT–)

Click

Pull the battery cables back to ensure

that it is connected securely.

Extension cables for battery terminals

Ensure that the WLAN

antenna is installed

securely.

Installing a WLAN Antenna

1.7

Antenna port (ANT)

(Optional) Installing Signal Cables for SUN2000-(2KTL–6KTL)-L1

1.8

COM port (COM)

No. Label Definition Description

1 485B1 RS485B, RS485 differential signal–Connects to the RS485 signal port of the

smart power sensors.

2 485A1 RS485A, RS485 differential signal+

3 485B2 RS485B, RS485 differential signal–Connects to the RS485 signal port of

batteries.

4 485A2 RS485A, RS485 differential signal+

5EN–Enable signal–Connects to the enable signal port of

batteries.

6EN+ Enable signal+

7 - - -

8PE Ground Connects to the shielding layer of cables.

ALARM port (ALARM)

No. Label Definition Description

1 ALARM- Alarm signal–Connects to the power port of the alarm

beacon.

2 ALARM+ Alarm signal+

3 485B3 RS485B, RS485 differential signal–Connects to the RS485 signal port of

smart PV safety boxes.

4 485A3 RS485A, RS485 differential signal+

512V–Negative electrode of the 12 V

power supply port

Connects to the power port of smart PV

safety boxes.

612V+ Positive electrode of the 12 V

power supply port

7 - - -

8PE Ground point on the shield layer Connects to the shielding layer of cables.

Ensure that the protective layer of the cable is inside the connector, cut off excess core wires

from the protection layer, totally insert the exposed core wire into the cable hole, and securely

connect the cable.

COM Port Pin Definitions

1. Communications port pin definitions of SUN2000L–(2KTL–5KTL)

ALARM Port Pin Definitions

No.

Label

Definition

Description

485B2

RS485B, RS485

differential signal

–

Connects to the RS485

–signal port of batteries, smart power

sensors, and smart PV safety boxes. When batteries, smart

power sensors, and smart PV safety boxes coexist, they share

the 485B2

–ports.

485A2

RS485A, RS485

differential signal+

Connects to the RS485+ signal port of batteries, smart power

sensors, and smart PV safety boxes. When batteries, smart

power sensors, and smart PV safety boxes coexist, they share

the 485A2+ ports.

GND

Enable signal

–/12V–

Connects to the enable signal

GND of batteries and the 12 V

GND

of smart PV safety boxes.

EN+

Enable signal+/12V+

Connects to the enable signal positive electrode of batteries

and the 12 V positive electrode of smart PV safety boxes.

Crimping Two Signal Cables

2. Connect the signal cables to SUN2000-(2KTL–6KTL)-L1.

COM Port Pin Definitions

Crimping Three Signal Cables

Connecting Signal Cables (to the Smart Power Sensors and Batteries)

Number of Signal Cables

Click

Connecting Signal Cables (to the Smart PV Safety Boxes)

Number of Signal Cables

Click

Connecting Signal Cables (to the Smart Power Sensors, Batteries, and Smart

PV Safety Boxes)

Number of Signal Cables

Click

Checking the Installation of SUN2000-(2KTL–6KTL)-L1 and Powering

On the SUN2000

1.9

Post-Installation Check

No.

Acceptance Criteria

The SUN2000 is installed correctly and securely.

The

WLAN antenna is installed correctly and securely.

The cables are routed properly as required by the customer.

Cable ties are secured evenly and no burr exists.

The PE cable is connected correctly and securely.

The DC switch and all the switches connected to the SUN2000 are set to OFF.

The AC output power, DC input power, and signal cables are connected correctly and

securely.

Unused terminals and ports are covered by watertight caps.

The installation space is proper, and the installation environment is clean and tidy.

•Before turning on the AC switch between the SUN2000 and the power grid, check that the

AC voltage is within the specified range using a multimeter.

•If the SUN2000 is connected to a battery, turn on the DC switch within 1 minute after turning

on the AC switch. If you turn on the DC switch after more than 1 minute, the SUN2000 will

shut down and start again.

•If the SUN2000 is connected to an LG battery, turn on the DC switch within 1 minute after

turning on the AC switch. If you turn on the DC switch after more than 1 minute, the

SUN2000 will be already connected to the grid. Therefore, it will shut down and start and

connect to the grid again.

1. If a battery is connected, turn on the battery switch.

2. Turn on the AC switch between the SUN2000 and the grid.

3. If there is a DC switch between PV strings and the SUN2000, turn on the DC switch.

4. Turn on the DC switch at the bottom of the SUN2000.

Powering On the SUN2000

Commissioning SUN2000 (2KTL–6KTL)-L1

1.10

1. Downloading the App

Search for FusionSolar in Huawei AppGallery to download and install the latest installation

package.

Method 2: Visit https://solar.huawei.com using your mobile phone browser and download the

latest installation package.

Method 3: Scan the QR code to download and install the latest installation package.

FusionSolar

2. Access Device commissioning.

Scenario 1: Your phone is not

connected to the Internet.

Scenario 2: Your phone is

connected to the Internet.

When your phone is

connected to the

Internet, Device

commissioning is not

displayed after you tap

....

3. Connect to the solar inverter WLAN and log in as installer to access the device commissioning

screen.

At the first login, the Quick

settings screen is displayed

by default. Exit the quick

settings.

5. Tap Quick settings to complete the deployment of the new SUN2000 as prompted.

4. Choose Maintenance > Device replacement, select the type of the original device, and

complete the replacement.

Select a model for device

replacement, set the grid

code, time zone, time, and

communication address,

and complete the protocol

replacement.

For details, see the

FusionSolar App Quick Guide

You can scan the QR code to

download the quick guide.

Restore the device to its

factory settings before

replacement.

6. (Optional) If you need to set other parameters, tap Settings.

7. Log in to the SmartPVMS and navigate to the Device Management page to replace the SN of

the old SUN2000 with the SN of the new SUN2000. The historical data of the old SUN2000

will be inherited.

You can also complete historical data inheritance in the FusionSolar app. Log in to the app and

choose Device management > Device Replacement to replace the SN of the old SUN2000

with the SN of the new SUN2000. The historical data of the old SUN2000 will be inherited.

Start Install SUN2000-

(2KTL–6KTL)-L1.

Complete electrical

connections of SUN2000-

(2KTL–6KTL)-L1.

End Check the installation and power

on the SUN2000.

Commission SUN2000

(2KTL–6KTL)-L1.

Removing SUN2000-(2KTL-5KTL)-L0 or SUN2000L-(3KTL-5KTL)-CN

2.1

Removing Cables from SUN2000-(2KTL-5KTL)-L0 or SUN2000L-(3KTL-5KTL)-CN

for Future Use

1. Power off the SUN2000 to be replaced.

2. Remove the AC connector for future use.

•Before removing the original SUN2000, ensure that the DC switch on the SUN2000 and all

the switches connected to the SUN2000 are set to OFF. Otherwise, the high voltage of the

SUN2000 may result in electric shocks.

•After the SUN2000 is powered off, the remaining electricity and heat may still cause electric

shocks and body burns. Therefore, put on protective gloves and dielectric boots and begin

operating the SUN2000 with specialized insulation tools five minutes after the power-off.

AC output port (AC)

3. Remove the DC connectors and use a cable cutter to cut off the terminals of

DC input power cables. Set the cables aside for future use.

•The DC terminals of SUN2000-(2KTL–5KTL)-

L0 or SUN2000L-(3KTL-5KTL)-CN must be

cut off. If the DC connectors of SUN2000-

(2KTL–5KTL)-L0 or SUN2000L-(3KTL-5KTL)-

CN are directly connected to SUN2000-

(2KTL–6KTL)-L1, the SUN2000 may be burnt.

•If the SUN2000 is connected to a smart PV

safety box, cut off the DC terminal

connected to the PV port on the SUN2000

and do not cut other DC terminals. Put the

cables aside for future use.

Cable

cutter

DC input terminals

2SUN2000-(2KTL-5KTL)-L0 and SUN2000L-(3KTL-5KTL)-CN

Replacement Scenario

Remove SUN2000-(2KTL–

5KTL)-L0 or SUN2000L-

(3KTL-5KTL)-CN.

4. (Optional) Remove the Smart Dongle for future use.

5. (Optional) Remove the signal cable connector from the COM port, and take out the signal

cable for future use.

COM port (COM)

USB 4G port (USB-4G)

6. Disconnect the PE cable and remove the crimped OT terminal. Set the cable aside for future

use.

Removing the Mounting Bracket of SUN2000-(2KTL-5KTL)-L0 or

SUN2000L-(3KTL-5KTL)-CN

See section 1.1 "Removing the Mounting Bracket of SUN2000L-(2KTL-5KTL)".

Installing SUN2000-(2KTL–6KTL)-L1

2.2

See section 1.2 "Installing SUN2000-(2KTL–6KTL)-L1".

Completing Electrical Connections of SUN2000-(2KTL–6KTL)-L1

2.3

Before connecting cables, ensure that the DC switch on the SUN2000 and all the switches

connected to the SUN2000 are set to OFF. Otherwise, the high voltage of the SUN2000 may

result in electric shocks.

1. Install the PE cable.

2. Install a WLAN antenna or Smart Dongle.

WLAN Antenna

Antenna port (ANT)

Ensure that the

WLAN antenna is

installed securely.

(Optional) 4G Smart Dongle

Smart Dongle port (4G/FE)

See section 1.3 "Installing the PE Cable for SUN2000-(2KTL–6KTL)-L1".

3. Connect the AC connector to the AC output port.

See section 1.4 "Installing the AC Output Power Cable to SUN2000-(2KTL–6KTL)-L1".

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Huawei SUN2000L Single phase Residental Solar Inverter User guide

Huawei SUN2000L Single phase Residental Solar Inverter User guide

Huawei SUN2000L Single phase Residental Solar Inverter User guide

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