Huawei SUN2000-24.5KTL User manual

HUAWEI TECHNOLOGIES CO., LTD.

SUN2000-(24.5KTL, 28KTL)

Quick Installation Guide

Issue: 07

Part Number: 31506950

Date: 2019-06-30

1System Installation

1. Before you install the devices, closely read the User Manual to get familiar with product

information and precautions.

2. Use insulated tools.

Unit: mm

Install the

SUN2000 in a

position where

the liquid

crystal display

(LCD) is easy

to view and

operate.

Vertical Backward Forward Horizontal Upside down

Determine the Installation Position

1.1

reserved.

1. The anti-theft lock is prepared by customers.

2. For details about wall-mounting the device, see the User Manual.

1. Determine the hole positions on the support

based on rear panel dimensions. 2. Drill holes.

3. Secure the rear panel. 4. Mount the inverter on the rear panel.

5. Tighten hexagon bolts. 6. (Optional) Install an anti-theft lock.

M10 (3 PCS)

30 N·m

Installing an Inverter (support-mounting is used as an example)

1.2

Unit: mm

NOTE

1. Do not use solid conductor hard cables.

2. 3-core outdoor cables (L1, L2, L3) are configured for the SUN2000-24.5KTL/28KTL.

The table lists only the recommended cable specifications. For more information about cable

specifications, see the User Manual.

2Electrical Connection

OT-5.5 mm2-M6

PE terminal

1. It is recommended that the ground cable be connected to a nearby ground position.

2. To enhance the corrosion resistance performance of the PE terminals, apply silica gel on them

after connecting the ground cable.

Install a Ground Cable

2.1

Install AC Output Power Cables

2.2

Inverter Model Cross-sectional Area of the Cable

(Recommended)

SUN2000-24.5KTL/28KTL 8.0 mm2 (8 AWG)

NOTE

5 N·m

Torque

screwdriver

(recommended)

Socket Cable sealing

cover

Auxiliary

connector

Click

To quickly connect the AC output connector to the

AC output terminal of the inverter, keep the notch of

the connector facing exactly to the operator.

Notch

Ensure that the AC output connector is securely connected. Otherwise, the connector may be

damaged after the inverter has been running for a long time.

1. Do not insert L1/L2/L3 into .

2. Tighten the screws to a torque of 1 N·m. M4

1 N·m

1-2 N·m 5 N·m

When routing the AC power cable, you are advised to reserve the bending radius at the bending

point.

1. Bending radius of the outdoor armored cable

R ≥ 20D (D indicates the cable outer diameter) .

2. Bending radius of the outdoor non-armored cable

R ≥ 10D (D indicates the cable outer diameter) .

NOTE

Install DC Input Power Cables

2.3

OptionalDCinputterminals

Number of Inputs 24.5KTL/28KTL

Connects to any one route

Connects to routes 1 and 3

Connects to routes 1, 3, and 5

Connects to routes 1, 2, 3, and 5

Connects to routes 1, 2, 3, 4, and 5

Connects to routes 1, 2, 3, 4, 5, and 6

1. Use the positive and negative metal contacts and DC connectors supplied with the SUN2000.

Using other models of positive and negative metal contacts and DC connectors may result in

serious consequences. The caused device damage is not covered under any warranty or

service agreement.

2. The metal contacts supplied with the DC connectors are either cold forming contacts or

stamping forming contacts. Crimp the metal cold forming contacts using crimping tool

UTXTC0005 (Amphenol, recommended) or H4TC0001 (Amphenol). Crimp the metal stamping

forming contacts using crimping tool H4TC0003 (Amphenol, recommended) or H4TC0002

(Amphenol). Choose the crimping tools that fit the metal contacts.

3. Before connecting DC input power cables, label the cable polarities to ensure correct cable

connections. If the cables are connected incorrectly, the inverter may be damaged.

4. Pull back the DC input power cables to check whether the cables would be disconnected.

5. If DC input power cables are reversely connected and the DC switch is ON, do not turn off the

DC switch immediately. Otherwise, the equipment may be damaged. You can disconnect the

DC input power cable on the PV string side or wait until the PV string voltage reduces to a value

within the safety range. Then, turn off the DC switch, remove the positive and negative

connectors, and rectify the connection.

Positiveconnector

Negative

connector

Positivemetal contact

Negativemetal contact

Common PVcableswith a cross-

sectionalarea of 4 mm²in the

industryare recommended.

Ensurethat cablescannot

be removed after crimped.

Theskid automatically

starts after the ejector

lever is fastened.

Recommended:H4TC0003

(Amphenol)

Recommended:H4TW0001

(Amphenol)

Click

Installinga DC input powercable (using metal stampingforming contacts)

Positiveconnector

Negative

connector

Positivemetal contact

Negativemetal contact

Common PVcableswith a cross-

sectionalarea of 4 mm²in the

industryare recommended.

Ensurethat cablescannot

be removed after crimped.

Theskid automatically

starts after the ejector

lever is fastened.

Recommended:UTXTC0005

(Amphenol)

Recommended:H4TW0001

(Amphenol)

Click

Installinga DC input powercable (using metal coldforming contacts)

Install an RS485 Communications Cable

2.4

3Installation Verification

5Setting Monitoring Parameters

4System Power-on

1. Switch on the AC circuit breaker between the SUN2000 and the power grid.

2. Ensure that the DC Switch at the bottom of the SUN2000 is ON.

3. (Optional) Measure the temperatures at the joints between the DC terminals and the connectors.

1. Check that all screws, especially the screws used for electrical connections,

are secured.

Passed

□Failed □

Check that all circuit breakers are switched to OFF.

Passed

□Failed □

Check that the ground cable is securely connected and no short circuit

occurs.

Passed

□Failed □

Check that AC output power cables are connected correctly and securely

(the N wire is connected to hole 4, and L1/L2/L3 can be connected to any

hole of 1/2/3; for details, see 2.2 Install AC output power cables), with no

short circuit.

Passed

□Failed □

5. Check that DC input power cables are connected correctly and securely, with

no short circuit.

Passed

□Failed □

Ensure that idle DC input terminals are sealed.

Passed

□Failed □

7. Check that the idle USB and RS485 ports are plugged with waterproof plugs.

Passed

□Failed □

No.

Color Pin Definition

White and orange

RS485A, and RS485

differentialsignal+

Orange

RS485B,and RS485

differentialsignal

White and green

PGND

Blue

RS485A, and RS485

differentialsignal+

White and blue

RS485B,and RS485

differentialsignal

Green

PGND

White and brown

PGND

Brown

PGND

RJ45

connector

with

shielding

functions

Plastic

base

Matchingnut

Sealing

washer

Cable

sealingnut

Theside withoutbuckles

1. If no data collector is used, set the following parameters before connecting the SUN2000 to the

power grid. For the other parameter settings, see the User Manual. If a data collector is used,

see the SmartLogger1000 User Manual for the parameter settings.

NOTE

Main

Second-

Level

Third-

Level

Menu Fourth-Level Menu Setting

Wizard Language N/A N/A Set based on site requirements.

Date&Time Date N/A Set based on site requirements.

Time N/A Set based on site requirements.

Grid Code N/A N/A For details about power grid codes,

see the Appendix.

Main

Menu Settings Isolation

(Advanced

User)

Input Grounded,

With TF •When the PV- is grounded, an

isolation transformer should be

connected. Set Isolation to Input

Grounded, With TF.

•When the PV- is not grounded,

set Isolation to Input

Ungrounded, Without TF or

Input Ungrounded, With TF.

Input Ungrounded,

Without TF

Input Ungrounded,

With TF

SUN2000 App

1. The SUN2000 app is a mobile phone app that communicates with the SUN2000 monitoring

system over a USB data cable, a Bluetooth module, or a WLAN module. As a convenient local

monitoring and maintenance platform, it supports alarm query, parameter settings, and routine

maintenance. The app name is SUN2000.

2. Access the Huawei App Store (http://appstore.huawei.com) or Google Play

(https://play.google.com), search for SUN2000, and download the app software package.

3. Connect a USB data cable, a Bluetooth module, or a WLAN module to the USB port of the

SUN2000 to implement the communication between the SUN2000 and the app.

NOTE

WLAN or Bluetooth Connection USB DataCableConnection

2. The preset password for Common User, Advanced User, and Special User is 000001. Use

the initial password upon first power-on and change it immediately after login. To ensure

account security, change the password periodically and keep the new password in mind. Not

changing the initial password may cause password disclosure. A password left unchanged for a

long period of time may be stolen or cracked. If a password is lost, devices cannot be accessed.

In these cases, the user is liable for any loss caused to the PV plant.

NOTE

Appendix: Power Grid Standard Code Mapping Table

No. PowerGrid

StandardCode Description No. PowerGrid

StandardCode Description

1 CHINA-MV480 Chinamedium-voltage

powergrid 2NRS-097-2-1-

MV480 South Africa medium-voltage

powergrid

3 NB/T 32004 Chinalow-voltage powergrid 4 IEC61727-MV480 IEC medium-voltagepower

grid

5UTEC 15-712-

1(A) Francelow-voltagepower

grid 6 VDE 0126-1-1-BU Bulgarialow-voltagepower

grid

7UTEC 15-712-

1(B) Islands of France 230 V 50

Hz 8 VDE-AR-N-4105 Germany low-voltagepower

grid

9UTEC 15-712-

1(C) Islands of France230 V 60

Hz 10 BDEW-MV480 Germany medium-voltage

powergrid

11 UTEC 15-712-1-

MV480 Francemedium-voltage

powergrid 12 BDEW-MV Germany medium-voltage

powergrid (400 V AC)

13 G59-England-

MV480 UK 480 V Medium-voltage

powergrid (I > 16 A) 14 TAI-PEA Thailandlow-voltagepower

grid (PEA)

Mode Select User Quick Settings

Function Menu

•The screenshots in this document correspond to app version 3.2.00.001

(Android).

•When the WLAN connection is used, the initial name of the WLAN

hotspot is Adapter-WLAN module SN, and the initial password is

Changeme.

•The initial password for Common User, Advanced User, and Special

User is 00000a.

•Use the initial password upon first power-on and change it immediately

after login. To ensure account security, change the password periodically

and keep the new password in mind. Not changing the initial password

may cause password disclosure. A password left unchanged for a long

period of time may be stolen or cracked. If a password is lost, devices

cannot be accessed. In these cases, the user is liable for any loss

caused to the PV plant.

•Set the correct grid code based on the application area and scenario of

the solar inverter.

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