Huawei SUN2000-62.5KTL-NHM0 User manual

Huawei Technologies Co., Ltd.
SUN2000-62.5KTL-NHM0
Quick Guide
Issue: 01
Part Number: 31500HGG
Date: 2022-09-20

1
1Overview
Copyright © Huawei Technologies Co., Ltd. 2022.
All rights reserved.
•The information in this document is subject to change due to version upgrade or other
reasons. Every effort has been made in the preparation of this document to ensure accuracy
of its contents, but all statements, information, and recommendations in this document do
not constitute a warranty of any kind, express or implied.
•Only qualified and trained electrical technicians are allowed to operate the device.
Operation personnel should understand the system composition and working principles, as
well as the local regulations.
•Before installing the device, read the user manual carefully to get familiar with product
information and safety precautions. Device damage caused by failure to abide by the
storage, transportation, installation, and operation guidelines specified in this document
and the user manual is not covered by the product warranty.
•Use insulated tools and wear proper personal protective equipment (PPE) when installing
the device.
(1) AC maintenance compartment
(2)
Communications cable hole (FE)
(3) Panel
(4) Protective cover
(5) DC maintenance compartment
(6) LED indicator
(7) External fan tray
(8) Security
Torx wrench[1]
(9) Protective ground
point
(
10) Communications cable hole
(COM)
(11) AC power cable hole
(12) Ventilation valve
(13) USB port
(14) DC power cable hole
Note [1]:
The security Torx wrench is delivered with the device and is tied to the bracket on the
top of the chassis. Remove the security
Torx wrench from the bracket and keep it safe.

2
2Device Installation
Dimensions
Installation Requirements
2.1
You need to purchase the mounting bracket separately from the Company.
•Moving an inverter requires four persons or appropriate transporting tools.
•Use lifting handles to facilitate installation, which are optional and delivered separately.
Ensure that the lifting handles are securely installed. After the installation is complete,
remove the lifting handles and keep them properly.
Moving an Inverter
2.2
Inverter + Mounting bracket
Inverter: < 99 kg
Mounting bracket: 6.09 kg
Manual Handling
The device can be moved manually or using a crane. If the installation position is high and the
inverter cannot be directly installed on the mounting bracket, you can use a crane to hoist and
move the inverter.

3
1. Take the inverter out of the packing case and move it to the specified position.
Hoisting
•To prevent damage to the device surfaces, do not use metal lifting ropes such as steel
ropes.
•Slowly and steadily hoist, move, and position the inverter to avoid bumping and damaging
the device enclosure.
Tool
Specifications
Source
Crane
Hoisting capability ≥ 3 t; operation radius ≥ 2 m
Prepared by the customer
Lifting rope
Length of the lifting rope ≥ 1.8 m
Prepared by the customer
Do not walk under hoisted objects.
Ensure that the lifting
handles are installed to
the correct screw holes.
Do not install them to the
mounting bracket screw
holes on the top.
Incorrect installation may
cause device damage or
personal injury.
Lifting
handle
screw hole
Mounting bracket
screw holes

4
Lifting hole on the AC side
Lifting hole on the DC side
Take the device out of the packing case, route the lifting ropes (with adequate load capacity to
support the device) through the two lifting eyes, and hoist the device to the installation
position.

5
Installing an Inverter
2.3
Installation Angle Installation Clearance
600–730 mm of clearance is
recommended underneath.
If the length of the M12X40 bolts delivered with the device does not meet the installation
requirements, prepare M12 bolts and use them together with the delivered M12 nuts.
Support-mounting
1. Install the mounting bracket to the support.

6
2. Install mounting ears.
3. Mount the device to the mounting bracket. If the device is moved manually, adjust the
positions of lifting handles at the bottom of the device. Tighten the two screws at the bottom
of the device.
Preparing Cables
3.1
3Electrical Connections
•Do not connect loads between the inverter and the AC switch that directly connects to the
inverter. Otherwise, the switch may trip by mistake.
•If an AC switch is used with specifications beyond local standards, regulations, or Huawei's
recommendations, the switch may fail to turn off in a timely manner in case of exceptions,
causing serious faults.

7
N
o.
Name
Type
Conductor cross
-
sectional area
Cable outer
diameter
Source
1
Ground
cable
[1]
Single
-core outdoor
copper cable and M10
OT/DT
terminal
S
p ≥ S/2
(S indicates
the conductor cross
-
sectional area of the
AC power cable.)
-
Prepared by the
customer
2
DC
power
cable
(either
one)
Two
-
core outdoor cable
and M12 OT/DT
terminal
38
–150 mm2
22
–44 mm
Prepared by the
customer
Single
-core outdoor
cable and M12 OT/DT
terminal
38
–150 mm2
13
–43 mm
Prepared by the
customer
3
AC
power
cable
(either
one)
Three
-core (U, V, W)
outdoor cable and M12
OT/DT
terminal
38
–150 mm2
24
–49 mm
Prepared by the
customer
Single
-core outdoor
cable and M12 OT/DT
terminal
38
–150 mm2
13
–35 mm
Prepared by the
customer
4
Communi
cations
cable
[2]
(either
one)
FE
: CAT 5E outdoor
shielded network cable
(internal resistance ≤ 1
ohm/10 m) and the
shielded RJ45 connector
0.2
–0.25 mm2
6.5
–7.1 mm
Prepared by the
customer
or
purchased from
the Company
(
1.2
m long FE
c
ommunications
cable
)
RS485: Outdoor
shielded twisted pair
cable that meets local
standards and M4
OT/DT terminal
0.3
–1.3 mm2
4.5
–11 mm
Prepared by the
customer
Note [1]: The value of the
conductor cross-sectional area is valid only if the conductors of the
ground cable and AC power cable are made of the same material. If the materials are different,
ensure that the conductor cross
-sectional area of the ground cable produces a conductance
equivalent to that of the area S/2. The specifications of the ground cable are subject to this table
or calculated according to IEC 60364
-5-54.
Note [2]: If the communication distances between the inverter and the Smart Array Controller
(SACU) and Smart Transformer Station (STS) are less than 100 m, FE communication is
recommended.
•The cable colors shown in cable connection schematic diagrams are for reference only.
Select cables according to local cable specifications.
•The factors that affect cable selection include the rated current, cable type, routing mode,
ambient temperature, and maximum expected line loss.
•To ensure that the inverter can be safely disconnected from the power grid when an
exception occurs, connect an AC switch to the AC side of the inverter. Select an
appropriate AC switch in accordance with local industry standards and regulations.
•Each inverter must be equipped with an AC output switch. Multiple inverters cannot
connect to the same AC output switch.

8
Opening Maintenance Compartment Doors
3.3
•Do not open the panel of the inverter.
•Before opening the maintenance compartment door of the inverter, turn off the external
switches on the AC and DC sides.
•Do not open the maintenance compartment door on rainy or snowy days. If you need to,
take protective measures to prevent rain or snow from entering the maintenance
compartment.
•Do not leave unused screws in the maintenance compartment.
The following describes how to open the maintenance compartment door on the DC side. The
procedure for opening the maintenance compartment door on the AC side is the same.
Connecting the Ground Cable
3.2
•It is recommended that the inverter
be connected to a nearby ground
point. The ground points of all
inverters in the same array must be
connected to ensure equipotential
connections to ground cables.
•The protective ground point on the
device enclosure must be connected
to a ground cable. The ground point
in the AC maintenance compartment
serves only as the equipotential
connection point of the protective
ground point and can be connected
based on site requirements.

9
1. Remove the pagoda connector from the maintenance compartment.
2. Install a new pagoda connector.
(Optional) Replacing the Pagoda Connector
3.4
If the DC power cables are multi-core cables, replace the pagoda connector.
Pagoda
connector
1. Remove the crimping module from the maintenance compartment.
2. Install a new crimping module.
(Optional) Replacing the Crimping Module
3.5
If the AC power cables are multi-core cables, replace the crimping module.
Crimping module

10
Single-core cables are recommended. For details about how to connect a multi-core cable,
see the user manual.
Connecting DC Power Cables
3.6
•Cut the threads of the pagoda connector according to the cable diameter specifications.
•Before connecting DC power cables, check and label the polarity of the cables.
•Ensure that the DC power cables are connected securely. Otherwise, the inverter may fail to
operate, or become overheated during operation due to an unreliable connection, which will
damage the terminal block.
•Do not pull the cables horizontally after they have been secured, as this may damage the
wiring terminals.
•If the DC cable diameter is less than or equal to 20 mm, apply sealing putty to the inside of
the pagoda connector to seal the device.
•To suppress harmonics in an inverter DC parallel system, install magnetic rings on cables.
Magnetic rings are not required in a single inverter scenario. Magnetic rings are delivered
with the device.
•After magnetic rings are installed, secure them to cables using cable ties. For details about
the installation procedure, see the figure in "Connecting Two Single-core Cables“.
•Incomplete or incorrect installation of magnetic rings may cause faults inside the device,
and the resulting device damage is not covered by the warranty.
DC parallel system:

11
Connecting Two Single-core Cables
Connecting Four Single-core Cables
Cable tie
Magnetic
ring

12
Connecting AC Power Cables
3.7
•Remove the rubber rings according to the cable diameter range, and ensure that the
crimping module is not damaged. Otherwise, the device may fail to offer the expected
level of protection.
•Ensure that the cable jacket (if any) is in the maintenance compartment..
•Ensure that the AC power cables are connected securely. Otherwise, the inverter may fail
to operate, or become overheated during operation due to an unreliable connection, which
will damage the terminal block.
•Do not pull the cables horizontally after they have been secured, as this may damage the
wiring terminals.
•The following describes the multi-core AC cable connections. For details about how to
connect a single-core cable, see the user manual.
•It is recommended that the stripped length of the V wire be 15 mm shorter than that of
the U or W wire.

13
1. Prepare the FE communications cables. The RJ45 connector is delivered with the device.
2. Connect the FE communications cables. Route
the FE1 cable through the cable hole on the left
and the FE2 cable through the cable hole on the
right. Insert the plug into the FE port on the
inverter and tighten the coupling nut.
(1) White
-and-orange
(2) Orange
(3) White
-and-green
(4) Blue
(5) White
-and-blue
(6) Green
(7) White
-and-brown
(8) Brown
•Inverters connect to the SmartModule in the Smart Array Controller (SACU) through FE
communications cables. To improve communication reliability, ensure that the inverters at
both ends connect to the GE2 and GE3 ports of the SmartModule respectively.
•In the FE ring network scenario, all inverters need to be connected in hand-in-hand mode
through FE communications cables. A maximum of 44 inverters can be connected. The FE
communication distance between the inverters and the SmartModule cannot exceed 100 m.
Connecting FE Communications Cables
Connecting Communications Cables
3.8
Select either FE or RS485 communication.

14
Connecting RS485 Communications Cables
1. Connect communications cables to the connector, prepare M4 OT or DT terminals, and
crimp ground cables for the shield layers.
Shield
layer
COM port pin definitions
•The DC parallel system does not
support RS485 communication.
•When routing communications
cables, separate communications
cables from power cables to
prevent communication from
being affected.
Port
Pin
Definition
Pin
Definition
Description
RS485
-2
1
RS485A IN, RS485
differential signal+
2
RS485A OUT, RS485
differential signal+
Used for cascading
solar inverters or
connecting to
a
device
such as the
SmartLogger
.[1]
3
RS485B IN, RS485
differential signal
–
4
RS485B OUT, RS485
differential signal
–
-
5
-
6
-
Reserved
RS485
-1
7
-
8
-
Reserved
Note [1]: In the RS485 communication networking, it is recommended that fewer than 30
inverters be cascaded to each COM port of the
SmartLogger. The RS485 communication
distance between the inverters and the
SmartLogger cannot exceed 1000 m.

15
Closing Maintenance Compartment Doors
3.9
The following describes how to close the maintenance compartment door on the DC side. The
procedure for closing the maintenance compartment door on the AC side is the same.
2. Connect the connector to the COM port, secure the shield layers to the ground point of
the communications cables, and bind the cables.

16
4Checklist Before Power-On
No.
Expected Result
1
The
inverter is not deformed or damaged.
2
The
inverter is properly installed.
3
The clearance around the
inverter meets requirements.
4
The external switches on the AC and DC sides are in the OFF position.
5
All cables are intact and free from any damage or cracks.
6
All ground cables are connected securely and reliably.
7
All AC power cables are connected correctly and securely, and
there is no open
circuit
or short circuit.
8
All DC cables are connected securely in correct polarity, and
there is no open circuit
or short circuit.
9
The communications cables are connected correctly and securely.
10
The crimping module is
installed securely.
11
The
pagoda connector is installed securely.
12
The AC maintenance compartment is clean and
tidy, without foreign matter.
13
The DC maintenance compartment is clean and
tidy, without foreign matter.
14
The AC maintenance compartment door is closed and the screws on the door are
tightened.
15
The DC maintenance compartment door is closed and the screws on the door are
tightened.
16
The waterproof plugs on the unused USB, COM, and FE ports are secured.

17
5Power-On
1. Turn on the AC switch between the AC side of the inverter and the power grid.
2. Turn on the DC switch between the DC side of the inverter and the DC combiner box.
3. Observe the LED indicators to check the status of the inverter.
Before turning on the AC switch between the inverter and the power grid, check
whether the AC voltage is within the required range by using a multimeter. (See the
local power grid standard.)
Category
Indicator Status
Description
DC indication
Steady green
The DC side is properly connected, and the auxiliary
power inside the device is working.
Blinking green
slowly
The device is in standby mode.
Blinking red fast
The DC side is not properly connected, or the auxiliary
power inside the device is not working.
Off
The DC side is not properly connected, or the voltage
on the DC side is less than 500 V.
Running indication
Steady green
The device is operating in grid
-tied mode.
Blinking green
slowly
The system environment is normal and the device is not
in the working state.
Blinking red fast
An environmental fault
occurred on the AC side.
Off
The AC side is not connected to the power grid.
Communication
indication
Blinking green
fast
The device receives
data through northbound FE or
RS485 communication
.
Off
The device has not received data
through northbound
FE
or RS485 communication in at least 10s.
Fault/Maintenance
indication
Steady red
A major alarm
was generated on the device.
Blinking red fast
A minor alarm
was generated on the device.
Blinking red
slowly
A warning
was generated on the device.
Blinking green
slowly
The device is under local maintenance or
shut down
after receiving a command.
Off
There
is no alarm,
and no local maintenance operations
are performed.
•Blinking fast means on for 0.2s and off for 0.2s.
•Blinking slowly means on for 1s and off for 1s.

18
SmartLogger Web-based Deployment
6
1. Only the Windows 7 operating system and later versions are supported.
2. The WebUI screenshots are for reference only.
1. Set the IP address of the PC. Ensure that it is in the same subnet as that of the SmartLogger.
Connected Port
IP
Setting
Default Value on the
SmartLogger
Example PC Setting
SmartLogger
WAN port
IP address
192.168.0.10
192.168.0.11
Subnet mask
255.255.255.0
255.255.255.0
Default gateway
192.168.0.1
192.168.0.1
SmartLogger
LAN port
IP address
192.168.8.10
192.168.8.11
Subnet mask
255.255.255.0
255.255.255.0
Default gateway
192.168.8.1
192.168.8.1
•When the IP address of the WAN port is in the subnet 192.168.8.1 to 192.168.8.255, set the
default gateway to 192.168.8.1 and the IP address of the LAN port to 192.168.3.10. If the
connected port is a LAN port, you need to adjust the network configuration of the PC.
•You are advised to connect the PC to the WAN port of the SmartLogger or the GE port of
the SmartModule. When the PC is connected to the GE port of the SmartModule, adjust the
network configuration of the PC in the same way as when the PC is connected to the LAN
port of the SmartLogger.
2. Enter https:// XX.XX.XX.XX (IP address of the SmartLogger) in the address box of your
browser. If you are logging in to the WebUI for the first time, a security warning is displayed.
Click Continue to this website.
3. Log in to the WebUI.
In this scenario, you need to update the SmartLogger to V300R023C00 or later.
Scenario 1: Initial Login When the User Name Is Displayed as Admin
Parameter
Description
Language
Set this parameter as required.
User Name
The default value is
admin.
Password
•
The initial password is
Changeme.
•
Use the initial password upon
first power-on and change it
immediately after login. Then,
use the new password to log in
again.
admin

19
Updating the SmartLogger to V300R023C00 or later:
•Method 1: Log in as admin using your new password.
•Method 2: Log in as installer using your app login password (the initial
password is 00000a).
Parameter
Description
Language
Set this parameter as required.
User Name
Select
installer.
Password
Set the login password as
prompted.
Scenario 2: Initial Login When the User Name Is Null
In this scenario, the SmartLogger software
version is V300R023C00 or later.
•Protect the password by changing it periodically, and keep it secure. If you lose the
password, the device must be restored to its factory settings. The Company will not be held
liable for any losses resulting from improper password management.
•You will be locked out for 10 minutes after five consecutive incorrect password attempts in
five minutes.
•When a dialog box with recent login information is displayed after login, click OK.
The Previous, Next, and Skip buttons in the lower right corner allow you to navigate while
setting parameters.
5. After the parameters are configured, click Finish.
4. On the Deployment Wizard page, set parameters as prompted. For details, see Help on
the page.