Huawei SUN2000-175KTL-H0 User manual

HUAWEI TECHNOLOGIES CO., LTD.
SUN2000-(175KTL-H0, 185KTL-INH0, 185KTL-H1)
Quick Guide
Issue: 04
Part Number: 31500AQK
Date: 2019-06-06

1
Port Description
Copyright © Huawei Technologies Co., Ltd.
2019. All rights reserved.
•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.
•Only qualified and trained electrical technicians are allowed to operate the device. Operators
should understand the composition and working principles of the grid-tied PV power system and
local standards.
•Before installing the device, read the user manual carefully to get familiar with product
information and safety precautions. Huawei shall not be liable for any consequences caused by
the violation of the storage, transportation, installation, and operation regulations specified in this
document and the user manual.
•Use insulated tools when installing the device. For personal safety, wear proper personal
protective equipment (PPE).
1Product Overview
Front View
(1) PV connection indicator
(2) Grid-tied indicator
(3) Communication indicator
(4) Alarm/Maintenance
indicator
(5) Host panel cover
(6) Maintenance
compartment
(1)
DC input terminals (controlled by DC SWITCH 1)
(2)
DC switch 1 (DC SWITCH 1)
(3)
DC input terminals (controlled by DC SWITCH 2)
(4)
DC switch 2 (DC SWITCH 2)
(5)
DC input terminals (controlled by DC SWITCH 3)
(6)
DC switch 3 (DC SWITCH 3)
(7) Ventilation valve
(8)
USB port (USB)
(9) Communications port (COM)
(10) Hole for the AC output power cable
(11) Hole for the tracking system power cable

2
Installation Angle
2.1
2Installation Requirements
SUN2000 Dimensions
Mounting Bracket Dimensions

3
3Installing the SUN2000
Installation Space
2.2
For ease of installing the SUN2000
on the mounting bracket, connecting
cables to the bottom of the
SUN2000, and maintaining the
SUN2000 in future, it is
recommended that the bottom
clearance be between 600 mm and
730 mm.
NOTE
Position for saving a
security torx
wrench
•The M12x40 bolt assemblies are delivered with
the SUN2000. If the bolt assembly length does
not meet the installation requirements, prepare
M12 bolt assemblies by yourself and use them
together with the delivered M12 nuts.
•Before installing the mounting bracket, remove
the security Torx wrench from the mounting
bracket and save it for later use.
•This document introduces how to install the
SUN2000 on a support as an example. For
details about wall-mounted installation, see the
user manual.
NOTE
1. Install the mounting bracket.

4
3. Adjust the installation positions of the handles, and install the SUN2000 on the mounting
bracket.
2. Unpack the inverter and move it to the specified position.
Handles are packed in a fitting bag and are not delivered with the SUN2000.
NOTE

5
If outdoor copper-core cables are used, select copper wiring terminals. For details about the
requirements for cables and terminals of other materials, see the user manual.
4Installing Cables
Installation Preparations
4.1
NOTE
No.
Item
Type
Specifications
Description
1
PE cable
Single
-
core outdoor
copper cable
Conductor cross
-
sectional area ≥ S/2
a(S
is the conductor cross
-
sectional area of the AC
output power cable.)
•
If you choose the
ground point on the
chassis shell for
connecting a PE
cable, prepare the PE
cable.
•
If you choose the
ground point in the
maintenance
compartment for
connecting a PE
cable, use a four-
core
AC output power
cable and do not have
to prepare a PE cable.
2
AC output
power cable
b
Outdoor copper
cable
•
Conductor cross-
sectional area: 50–
185 mm2
•Cable outer diameter:
24–66 mm (multi-
core); 14–35 mm
(single-core)
If you choose the ground
point in the maintenance
compartment for
connecting a PE cable,
use a four
-core cable.
Otherwise, use a three
-
core cable or three
single
-core cables.
Outdoor aluminum
-
core cable
•
Conductor cross-
sectional area: 70–
185 mm2(multi-core);
70–240 mm2(single-
core)
•Cable outer diameter:
24–66 mm (multi-
core); 14–35 mm
(single-core)
3
DC input power
cable
PV cable that
meets the 1500 V
standard
•
Conductor cross-
sectional area: 4–6
mm2
•
Cable outer diameter:
4.7–6.4 mm
-

6
No.
Item
Type
Specifications
Description
4
RS485
communication
s cable
Outdoor shielded
twisted pair cable
•
Conductor cross-
sectional area: 0.25–
1
mm2
•Cable outer diameter:
4–11 mm
When three
communications cables
connect to the signal
cable connector, the
outer diameter of the
cables should be 4
–8
mm.
5
(Optional)
Power cable of
the tracking
system
Three
-
core outdoor
copper cable with
dual
-layer
protection
•
Conductor cross-
sectional area: 10
mm2
•Cable outer diameter:
15–18 mm
-
Note a: The value is valid only if the conductors of the PE cable and AC power cable use the same
material. If the materials are different, ensure that the conductor cross
-sectional area of the PE
cable produces a conductance equivalent to that of the area S/2.
Note b: You are advised to use a soft cable to prevent
poor terminal contact due to the bending
stress of the cable.
Installing the PE Cable
4.2
•It is recommended that the PE cable
be connected to a nearby PE point.
Connect the PE points of all
SUN2000s in the same PV array to
ensure equipotential connections to PE
cables.
•To enhance the corrosion resistance of
a ground terminal, you are advised to
apply silica gel or paint on it after
connecting the PE cable.
NOTE

7
Opening the Maintenance Compartment Door
4.3
•Do not open the host panel of the SUN2000.
•Before opening the SUN2000 maintenance compartment door, turn off the downstream AC
output switch and three DC switches at the bottom.
•Do not open the maintenance compartment door in rainy or snowy days. If you must, take
protective measures to prevent rain or snow from entering the maintenance compartment.
•Do not leave unused screws in the maintenance compartment.
1. Loosen the screws on the maintenance
compartment door. 2. Open the maintenance compartment door and adjust the support bar.

8
(Optional) Replacing the Crimping Module
4.4
If the AC output power cable has a single core, replace the crimping module.
NOTE
3. Remove the crimping modules and three-hole rubber plug that are bound in the maintenance
compartment for future use.
Crimping
module
Three-hole
rubber plug

9
(Optional) Installing the Solar Tracker Power Cable
4.6
1. A switch-disconnector-fuse or fuse-switch-disconnector with a voltage of no less than 800 V,
current of 16 A, and protection type of gM needs to be installed between the SUN2000 and the
tracker controller for protection.
2. The cable between the wiring terminal on the power cable and the switch-disconnector-fuse or
fuse-switch-disconnector should be less than or equal to 2.5 meters.
Removing the Rubber Rings from the Crimping Module
4.5
Use scissors to cut off the joints of the rubber rings to remove them. All rubber rings are removed in
the same way.
NOTE

60-64 mm (five rings)
54-60 mm (four rings)
46-54 mm (three rings)
36-46 mm (two rings)
24-36 mm (one ring)
10
Multi-core Cable (Four-Core Cable Is Used as an Example)
Installing AC Output Power Cables
4.7
64-66 mm (six rings)
•Remove the corresponding rubber rings in strict accordance with the cable diameter, and ensure
that the crimping module is not damaged. Otherwise the protection level of the solar inverter will
be affected.
•Ensure that AC terminations provide firm and solid electrical connections. Failing to do so may
cause SUN2000 malfunction and damage to its terminal block, even starting thermal events.
•If the AC output power cables are subject to a pulling force because the inverter is not installed
stably, ensure that the last cable that bears the stress is the PE cable.

11
Single-core Cable
28-32 mm (three rings)
22-28 mm (two rings)
14-22 mm (one ring)
32-35 mm (four rings)

12
Closing the Maintenance Compartment Door
4.8
The SUN2000 has three DC switches (DC SWITCH 1, DC SWITCH 2, and DC SWITCH3).
DC SWITCH 1 controls routes 1–6 of DC input terminals, DC SWITCH 2 routes 7–12, and DC
SWITCH 3 routes 13–18.
NOTE
Installing DC Input Power Cables
4.9
Selecting DC Input Terminals
Select DC input terminals according to the following rules:
1. Evenly distribute DC input power cables on the DC input terminals controlled by the three DC
switches.
2. Maximize the number of connected MPPT circuits.
Ensure that the PV module output is well insulated to ground.

13
1. Use the MC4 EVO2 PV connectors delivered with the SUN2000. If the PV connectors are lost or
damaged, purchase the connectors of the same model. The device damage caused by
incompatible PV connectors is beyond the warranty scope.
2. Before connecting DC input power cables, label the cable polarities to ensure correct cable
connections. If the cables are connected incorrectly, the SUN2000 may be damaged.
3. Measure the voltage at the DC input end using a multimeter. If the voltage is a negative value,
the DC input polarity is incorrect. Correct the polarity. If the voltage is greater than 1500 V, too
many PV modules are configured to the same string. Remove some PV modules.
4. If polarity of the DC input power cable is reversed and the DC switch is ON, do not turn off the
DC switch immediately or unplug positive and negative connectors. The device may be
damaged if you do not follow the instruction. The caused equipment damage is beyond the
warranty scope. Wait until the solar irradiance declines and the PV string current reduces to
below 0.5 A, and then turn off the three DC switches and remove the positive and negative
connectors. Correct the string polarity before reconnecting the string to the SUN2000.
Installing a DC input power cable
13001462
(STAUBLI)
Click
32.6020-22100-HZ
(STAUBLI)
Positive metal contact
Negative metal contact
Use a multimeter
to measure the
DC voltage.
Ensure that the cable
cannot be removed after
crimped.
Click
Positive connector
Negative
connector
Ensure that
the locking
nut is
secured.

14
1. The RS485 and MBUS communication modes are mutually exclusive.
2. When routing communications cables, separate communications cables from power cables to
prevent communication from being affected.
Installing the RS485 Communications Cable
4.10
Communication Port Pin Definition
Port
Pin
Definition
Pin
Definition
Description
RS485
-1
1
RS485A IN,
RS485
differential signal+
2
RS485A OUT,
RS485
differential signal+
Used for cascading
inverters or connecting to
devices such as the
SmartLogger.
3
RS485B, RS485
differential signal
–
4
RS485B, RS485
differential signal
–
PE
5
PE, shielding ground
6
PE, shielding ground
-
RS485
-2
7
RS485A, RS485
differential signal+
8
RS485B, RS485
differential signal
–
Used for connecting to
RS485 slave devices.

15
Connecting Communications Cables
If three communications cables are to be connected, use the three-hole rubber plug that is bound
in the maintenance compartment.
NOTE
5Verifying the Installation
1.
The SUN2000 is installed correctly and securely.
2.
The DC switches and downstream AC switch are OFF.
3.
All ground cables are connected securely, without open circuits or short circuits.
4.
AC output power cables are connected correctly and securely, without open circuits or short
circuits.
5.
DC input power cables are connected correctly and securely, without open circuits or short
circuits.
6.
The RS485 communications cable is connected correctly and securely.
7.
The maintenance compartment door is closed and the door screws are tightened.
8.
Unused DC input terminals are sealed.
9.
Unused USB ports are plugged with watertight caps.

16
6Powering On the System
1. Turn on the AC switch between the SUN2000 and the power grid.
2. Turn on the DC switches at the SUN2000 bottom.
3. Observe the LED indicators to check the SUN2000 operating status.
Display Category
Indicator Status
Description
PV indication
LED1
LED4
NA
Steady green
-
At least one PV string is properly connected, and
the DC input voltage of the corresponding MPPT
circuit is higher than or equal to 500 V.
Blinking
green at
short
intervals
Steady
red
An environmental fault occurs at DC side.
Off
-
The SUN2000 disconnects from all PV strings, or
the DC input voltage of each MPPT circuit is less
than 500 V.
Grid
-tied indication
LED2
LED4
NA
Steady green
-
The SUN2000 has connected to the power grid.
Blinking
green at
short
intervals
Steady
red
An environmental fault occurs at AC side.
Off
-
The SUN2000 does not connect to the power grid.
Communications
indication
LED3
-
Blinking green at short
intervals
The SUN2000 receives data over RS485 or MBUS
communication.
Off
The SUN2000 has not received data over RS485
or MBUS communication for 10 seconds.
Before turning on the AC switch between the SUN2000 and the power grid, use a multimeter to
check that the AC voltage is within the specified range.
NOTE
•Blinking at short intervals (on for 0.2s and then off for 0.2s).
•Blinking at long intervals (on for 1s and then off for 1s).

17
Display Category
Indicator Status
Description
Alarm/O&M
indication
LED4
-
Steady red
A warning alarm is generated.
Blinking red at short
intervals
A minor alarm is generated.
Blinking red at long
intervals
A major alarm is generated.
Steady green
Local maintenance succeeds.
Blinking green at long
intervals
In local maintenance or shuts down over a command.
Blinking green at short
intervals
Local maintenance fails.
Off
No alarm is generated, and no local maintenance
operations are performed.
SUN2000 APP
7
1. The SUN2000 app is mobile phone app that communicates with the SUN2000 monitoring system
over a USB data cable, Bluetooth module, or WLAN module. As a convenient local monitoring
and maintenance platform, it supports alarm query, parameter configuration, and routine
maintenance. The app name is SUN2000.
2. Access the Huawei app store (http://appstore.huawei.com), Google Play
(https://play.google.com), or App Store (iOS), search for SUN2000, and download the SUN2000
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
Bluetooth Module or WLAN Module
Connection USB Data Cable Connection

18
Login screen Selecting a
connection mode Switching
between users
Main menu
screen
Quick
settings
8Troubleshooting
Symptom
Possible Cause
Suggestion
The PV string is
connected
reversely.
The PV string cables are
connected reversely during
the SUN2000 installation.
Wait until the solar irradiance declines at night
and the PV string current reduces to below 0.5
A. Then, turn off the three DC switches, remove
the positive and negative connectors, and
rectify the connection of the DC input power
cable.
•The screenshots in this document correspond to app version2.2.00.050
(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.

19
9Grid Code Mapping Table
No.
Grid Code
Description
SUN2000
-
175KTL
-
H0
SUN2000
-
185KTL
-
INH0
SUN2000
-
185KTL
-
H1
1
CHINA_MV800
China medium
-
voltage power
grid
Supported
-
-
2
G59
-England-MV800
G59 medium
-voltage power
grid
-
-
Supported
3
AS4777
-MV800
Australia medium
-voltage
power grid
-
-
Supported
4
INDIA
-MV800
India medium
-voltage power
grid
-
Supported
-
5
IEC61727
-MV800
IEC61727 medium
-voltage
power grid (50 Hz)
-
Supported
Supported
6
BDEW
-MV800
Germany medium
-voltage
power grid
-
-
Supported
7
ABNT NBR 16149
-
MV800
Brazil medium
-
voltage power
grid
-
-
Supported
8
UTE C 15
-712-1-
MV800
France medium
-voltage
power grid
-
-
Supported
9
Chile
-MV800
Chile medium
-voltage power
grid
-
-
Supported
10
EN50438
-TR-MV800
Turkey medium
-
voltage power
grid
-
-
Supported
11
TAI
-PEA-MV800
Thailand PEA medium
-
voltage power grid
-
-
Supported
12
Philippines
-MV800
Philippines medium
-voltage
power grid
-
-
Supported
13
Malaysian
-MV800
Malaysia medium
-voltage
power grid
-
-
Supported
14
NRS
-097-2-1-MV800
South Africa medium
-
voltage
power grid
-
-
Supported
15
SA_RPPs
-MV800
South Africa RPPs medium
-
voltage power grid
-
-
Supported
16
Jordan
-Transmission-
MV800
Jordan power transmission
network medium
-voltage
power grid
-
-
Supported
17
Jordan
-Distribution-
MV800
Jordan power distribution
network medium
-voltage
power grid
-
-
Supported
18
Egypt ETEC
-MV800
Egypt medium
-
voltage power
grid
-
-
Supported