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

1
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
Copyright © Huawei Technologies Co., Ltd. 2019. All rights
reserved.

2
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

3
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
NOTE
M6
5 N·m

4
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
NOTE

5
Install DC Input Power Cables
2.3
OptionalDCinputterminals
Number of Inputs 24.5KTL/28KTL
1
Connects to any one route
2
Connects to routes 1 and 3
3
Connects to routes 1, 3, and 5
4
Connects to routes 1, 2, 3, and 5
5
Connects to routes 1, 2, 3, 4, and 5
6
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.

6
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)

7
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 □
2.
Check that all circuit breakers are switched to OFF.
Passed
□Failed □
3.
Check that the ground cable is securely connected and no short circuit
occurs.
Passed
□Failed □
4.
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 □
6.
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
1
White and orange
RS485A, and RS485
differentialsignal+
2
Orange
RS485B,and RS485
differentialsignal
-
3
White and green
PGND
4
Blue
RS485A, and RS485
differentialsignal+
5
White and blue
RS485B,and RS485
differentialsignal
-
6
Green
PGND
7
White and brown
PGND
8
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

8
Main
Menu
Second-
Level
Menu
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
6
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

9
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)
Login Page Select Connection
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.