Huawei SUN2000-2KTL-L0 User manual

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HUAWEI TECHNOLOGIES CO., LTD.
SUN2000-(2KTL-5KTL)-L0
Quick Guide
Issue: 01
Part Number: 31509986
Date: 2018-09-05

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1Packing List
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 installing the device, closely read the user manual to get familiar with product
information and safety precautions.
3. Only certified electricians are allowed to operate the device. Operation personnel must wear
proper personal protective equipment (PPE) all the time.
4. Before installing the device, check that the package contents are intact and complete against
the packing list. If any damage is found or any component is missing, contact your dealer.
5. Huawei shall not be liable for any device damage caused by the violation of instructions in this
document.
6. The cable colors involved in this document are for reference only. Select cables in accordance
with local cable specifications.
NOTICE
Solar inverter
(1 PCS) PV negative connector
(black, 1 set)
PV positive
connector
(black, 1 set)
AC connector
(1 set) Signal cable connector
(1 set)
Antenna
(1 set) Screw (3 set) Expansion bolt (3 PCS) Mounting bracket
(1 PCS) Screwdriver
(1 PCS)
Quick Guide
(1 PCS) Certificate (1 PCS) Solar Inverter Delivery Inspection
Report and Packing List (1 PCS)
4G module (1 PCS)
SUN2000
(Optional) 4G Module
Copyright © Huawei Technologies Co., Ltd. 2018.
All rights reserved.

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2Overview
(1)
LED
(2)
Front panel
(3)
Mounting bracket
(4)
Mounting plate
(5)
Heat sink
(6)
Ventilation valve
(7)
DC switch (DC SWITCH)
(8)
DC input terminals
(PV1+/PV1–)
(9)
DC input terminals
(PV2+/PV2–)
(10)
COM port (COM)
(11)
USB-4G port cover (USB-4G)
(12)
AC output port (AC)
(13)
Antenna port (ANT)
(14)
Ground point
For the model without an external WiFi antenna, the antenna port (ANT) is actually a cover and
there is no port inside.
NOTE
Installation Requirements
3.1
Tilt and Space
3Installing the Device

3
Dimensions
NOTE
If multiple inverters need to be installed, see SUN2000-(2KTL-5KTL)-L0 User Manual for the
installation dimensions.
Wall-mounted Installation
Installing the Mounting Bracket
3.2
Avoid drilling holes in the utility pipes and/or cables attached to the
back of the wall.
DANGER

4
Prepare M8 stainless bolt assemblies (including flat washers, spring washers, and M8 bolts) with
appropriate lengths as well as matched flat washers and nuts based on the support specifications.
NOTICE
Support-mounted Installation
You are advised to apply anti-rust paint
on the hole positions for protection.
Installing the SUN2000
3.3
If the bottom of the mounting plate does not snap into place, push the SUN2000 from the front
until the bottom of the mounting plate snaps into the mounting bracket.
The anti-theft lock needs to be prepared by the customer.
NOTICE
1. Install the SUN2000 on the
mounting bracket. 2. Tighten screw assemblies. 3. (Optional) Install an anti-theft lock.

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(Optional) Installing the 4G Module
3.4
USB-4G port cover (USB-4G)
Reinstalling the 4G module enclosure, ensure that
the buckle springs back to the original position.
2.4
NOTICE
The USB-4G port is available only for a 4G module, rather than a USB data cable.
Install the SIM card in the direction shown by the silk screen and arrow on the slot.
Press the SIM card until it snaps into place and locked, which means that the SIM card is
installed correctly.
To remove the SIM card, push it inwards. The SIM card will spring out automatically.

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(Optional) Installing the WiFi Antenna
3.5
Antenna port (ANT)
The 4G module and WiFi antenna cannot be used at the same time.
NOTICE
Ensure that the WiFi antenna is installed
securely.
Prepare cables based on site requirements.
4Connecting Cables
Preparing Cables
4.1
No.
Cable
Type
Conductor Cross
-
sectional Area Range
Outer
Diameter
1
PE cable
Single
-core outdoor copper cable
4
–10 mm2
N/A
2
AC output power
cable
Two
-core (L and N) outdoor copper
cable or three
-core (L, N, and PE)
outdoor copper cable
4
–6 mm2
10
–21 mm
3
DC input power
cable
Standard outdoor PV cable in the
industry (recommended model: PV1
-F)
4
–6 mm2
4.5
–7.8 mm
4
Signal cable
(optional)
Outdoor shielded twisted pair
0.25
–1 mm2
4
–11 mm
Connect cables in accordance with the installation laws and regulations of the country or
region where the SUN2000 is located.
Before connecting cables, ensure that the DC switch on the SUN2000 and all the switches
connecting to the SUN2000 are OFF. Otherwise, the voltage of the SUN2000 may result in
electric shocks.
NOTICE

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Installing the PE Cable
4.2
Ground
point
Click
Do not connect the neutral wire to the enclosure as a PE cable. Otherwise, electric shocks will be
caused.
DANGER
Recommended: Apply silica gel or paint around a ground terminal after connecting the ground
cable.
The PE point at the AC output port is used only as a PE equipotential point, and cannot substitute
for the PE point on the enclosure.
NOTE
1. Connect the AC output power cable to the AC connector.
Installing the AC Output Power Cable
4.3
Ensure that the protection layer of the AC output power cable is in the connector, and that the
exposed core wire is totally inserted into the cable hole and connected securely. Failing to do so
may cause SUN2000 malfunction or damage.
NOTICE
Three-Core Cable (L, N, and PE)

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Click
AC output port (AC)
Two-Core Cable (L and N)
2. Connect the AC connector to the AC output port, and then Check the route of the AC output
power cable.

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To remove the AC connector, follow the
steps of its installation in reverse order.
Then remove the plug insert as shown
in the right figure.
NOTE
Plug insert
Ensure that the cable will
not be extracted after
crimped.
Positive metal terminal
Negative metal terminal
Positive connector
Negative
connector
Ensure that the locking
nut is secured.
Ensure that the cables are
correctly connected.
Pull the DC input power
cable back to ensure that
it is connected securely.
Click
using metal cold forming contacts
Installing the DC Input Power Cable
4.4
1. Ensure that the PV string is well insulated to ground.
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
H4TC0001 (Amphenol). Crimp the metal cold stamping contacts using crimping tool H4TC0002
(Amphenol). Choose the crimping tools that fit the metal contact types. Do not mix up the tools.
3. The SUN2000 open circuit voltage mustalways be lower than or equal to 600 V DC.
4. Before installing the DC input power cable, label the cable polarities correctly to ensure correct
cable connections.
5. Use the positive and negative connectors supplied with the SUN2000.
6. 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. This damage is not covered under any warranty or
service agreement. Wait until the solar irradiance declines at night and the PV string current
reduces to below 0.5 A, and then turn off the DC switch and remove the positive and negative
connectors. Correct the string polarity before reconnecting the string to the SUN2000.
NOTICE
1. Assembling the DC Connector