Huawei SUN2000-3.8KTL-USL0 User manual

HUAWEI TECHNOLOGIES CO., LTD.
SUN2000-(3.8KTL, 5KTL, 7.6KTL)-USL0
Quick Guide
Issue: 02
Part Number: 31509357
Date: 2018-05-10

(1) Host panel
(2) LED indicators
(3) Maintenance compartment door
(4) Mounting bracket
(5) Heat sink
(6) DC switch (DC SWITCH)
(7) Antenna port (ANT)
(8) Battery cable waterproofing bolt (BAT, 3/4 in.)
(9) Ventilation valve
(10) Backup enable button (MANUAL STAND
-
ALONE)
(11) Signal cable waterproofing bolt (COM, 3/4 in.)
(12) PV input power cable waterproofing bolt (PV,
3/4 in.)
(13) AC output power cable waterproofing bolt for
critical load (BACKUP, 3/4 in.)
(14) AC output power cable waterproofing bolt for
home load (AC GRID, 3/4 in.)
Copyright © Huawei Technologies Co., Ltd. 2018. All
rights reserved.
1Overview
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 the 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 composition and working principles of the grid-tied PV power
system and local regulations.
•Before installing the device, read the user manual carefully to become 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 your safety, wear proper personal protective
equipment (PPE).
NOTICE

2Installation Requirements
2
Angle Space
Dimensions
3System Installation
Installing the SUN2000
3.1
•Select tightening screws suitable for the load-bearing structure. This section introduces how to
install the SUN2000 on a wall. For details about the support-mounted installation, see the user
manual.
•Prepare an anti-theft lock suitable for the lock hole diameter Ф8 mm (0.31 in.) by yourself.
NOTE

1. Install the mounting bracket (for example, on a frame post).
Marking-off Template
Load
-
Bearing
Structure
Frame post
(recommended)
Brick wall/Fiber
-
cement composite
panel
Plywood
Tightening
Screw
Type
M6 tapping
screw
M6 expansion bolt
M6 expansion anchor
screw
Screw
Quantity
4 PCS
4 PCS
4 PCS
Screw
Appearance
Hole
Combination
in Marking
-
off Template
1, 2, 3, 4
3, 4, 5, 6
3,
4, 5, 6
Frame post
Bottom alignment line for the
mounting bracket (top)
3
2. Install the SUN2000 on the
mounting bracket. 3. Tighten the hex socket screws. 4. (Optional) Install an anti- theft lock.
Wall panel

•Do not open the host panel of the SUN2000.
•Before opening the SUN2000 maintenance compartment door, turn off the downstream AC
output switch and the bottom DC switch.
•Do not open the maintenance compartment door during rainfall or snowfall. 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.
Installing the SIM Card
3.2
•If the 4G function is configured, you need to prepare a standard SIM card size: 25 mm x 15 mm
(0.98 in. x 0.59 in.). After being installed with the SIM card and being powered on, the 4G module
can access the 4G network without being commissioned. Do not remove the 4G module when
installing the SIM card.
•Install the SIM card in the direction shown on the arrow on the slot.
•To install the SIM card, press it in place until it locks.
•To remove the SIM card, push it inward and then let go to eject it.
4
NOTE
NOTICE
4Electrical Connections
•Connect cables in accordance with local installation laws and regulations.
•Ensure that power is off before connecting cables.
Preparing Cables
4.1
NOTICE
No.
Cable
Type
Conductor Cross
-Sectional
Area
1
AC
output
power
cable
AC output
power cable
for home load
•
Use cables that can withstand 90°
C
(194°F) or 105°C (221°F).
•If the output mode is set to L1/L2/N,
use four single-
core outdoor copper
cables (L1, N, L2, PE).
•
If the output mode is set to L1/L2,
use three single-core outdoor
copper cables (L1, L2, PE).
•
L1, N, L2: 12–6 AWG
(SUN2000-3.8KTL-
USL0)/
10–6 AWG(SUN2000-
5KTL-
USL0)/
6 AWG(SUN2000-7.6KTL-
USL0)
•
PE: 6 AWG
AC output
power cable
for
critical
load
•
Use cables that can withstand 90°
C
(194°F) or 105°C (221°F).
•
Two single-core outdoor copper
cables (L1, L2)
12
–6 AWG

5
Preparing the Threading Tube
4.2
The specifications of the tubes should comply with those of the waterproofing bolts. For example,
for a 3/4 in. waterproofing bolt, a 3/4 in. tube is recommended. The tube appearance shown in the
following figure is for reference only. The actual tube is the standard.
Nut Conduit
Cable hole diameter at the bottom
Fitting
No.
Cable
Type
Conductor Cross
-
Sectional Area
2
PV input power cable
•
PV cable that meets the 600 V standard
•
Use cables that can withstand 90°C
(194°F) or 105°C (221°F).
•
Single-core outdoor copper cable
10
–8 AWG
(Optional) Ground
cable at the PV side
(GND)
•
Use cables that can withstand 90°C
(194°F) or 105°C (221°F).
•
Single-core outdoor copper cable
6 AWG
3
(Optional) Battery
cable
•
PV cable that meets the 600 V standard
•
Use cables that can withstand 90°C
(194°F) or 105°C (221°F).
•
Single-core outdoor copper cable
14
–8 AWG
4
(Optional) Signal cable
Multi
-paired and individually foil-shielded
cable that complies with UL2919, CM/CMG
(NEC type), or CMH (CSA type)
24
–16 AWG
Threading tube
Installing the AC Output Power Cable
4.3
•Ensure that the exposed core wire is completely inserted into the cable hole and connected
securely. Failing to do so may cause the SUN2000 to malfunction or be damaged.
•If the AC output power cable bears pulling force because the inverter is not installed securely,
ensure that the last cable that bears the force is the PE cable.
•In the following figure, 1.0 mm x 5.5 mm (0.04 in. x 0.22 in.) is the thickness and width of the
screwdriver blade.
NOTICE

6
1. Connect the AC output power cable for home load (L1/L2/N is used as an example here).
L1/L2/N
L1/L2

7
2. Connect the AC output power cable for critical load.
Installing the PV Input Power Cable
4.4
•Ensure that the PV module output is well insulated to ground.
•Ensure that the PV input power cable is correctly connected and that the voltage does not
exceed 500 V DC. Otherwise, the SUN2000 will be damaged.
•The output wiring terminals of PV modules or connected optimizers may have hazardous
voltages. Touching the terminals may cause electric shock. Before connecting PV input power
cables, ensure that the DC SWITCH of the SUN2000 is OFF and that the DC input terminals of
the SUN2000 have no voltage.
DANGER
•The ground cable at the PV side (GND) is connected to the ground point on the PV module
support, ensuring reliable connection between the PV module frame and the SUN2000 ground
point.
•Ensure that the positive and negative cables of PV strings are connected to the PV positive (+)
and negative (–) terminals respectively.
NOTICE

8
Installing the Battery Cable
4.5
•Use dedicated insulation tools when
connecting cables. Otherwise,
serious injury may occur due to the
high battery voltage.
•Ensure that the battery cable is
correctly connected. Ensure that the
polarities are not reversed.
For details about how to install the battery
cable, see section 4.4 Installing the PV
Input Power Cable.
DANGER

9
Installing the Signal Cable
4.6
•When laying out a signal cable, separate it from the power cable to avoid signal interference.
•Cut off extra wires from the signal cable to be flush with the protection layer. Ensure that the
exposed core wire is completely inserted into the cable hole and connected securely.
No.
Label
Definition
Description
1
RSS+
EMERGENCY STOP switch signal
input
Can connect to the signal port on
the emergency stop switch (NC).
2
RSS–
3
EN+
Enable signal+
Can connect to the battery enable
signal port and RS485 signal port.
4
EN–
Enable signal
–
5
485A2
RS485A
, RS485 differential signal+
6
485B2
RS485B
, RS485 differential signal–
7
485A1
RS485A
, RS485 differential signal+
Can connect to the RS485 signal
port on the energy meter.
8
485B1
RS485B
, RS485 differential signal–
NOTICE

•Ensure that the pad for the antenna is reliably installed. Otherwise, the protection rating of the
device will be affected.
•Check that the antenna is securely connected.
The 4G antenna and WLAN antenna are installed in the same way. This document uses the 4G
antenna as an example.
NOTICE
5Closing the Maintenance Compartment Door
•Before closing the maintenance compartment door, check that cables are connected correctly
and securely. Then, take appropriate measures to ensure that the conduit and fitting of the
threading tube are secured, seal the cable holes, and clear foreign matter from the
maintenance compartment.
•If the screws on the enclosure door are lost, obtain the spare screws from the fitting bag.
6Installing the Antenna
10
NOTICE

11
7Verifying the Installation
No. Acceptance Criteria
1 The SUN2000 is installed correctly and securely.
2 The antenna and SIM card are installed correctly and securely.
3 Cables are routed properly as required by the customer.
4DC SWITCH and all the switches connecting to the SUN2000 are in the OFF position.
5All cables are connected correctly and securely.
6 Unused ports are blocked by waterproofing bolts.
7 The threading tubes at the bottom of the enclosure are sealed.
8 The maintenance compartment interior is clean and tidy, with no foreign matter.
9The installation space is proper, and the installation environment is clean and tidy, without
foreign matter.
8Powering On the System
Before turning on the AC switch between the SUN2000 and the power grid, use a multimeter set to
the AC position to check that the AC voltage is within the specified range.
1. Turn on the AC switch between the SUN2000 and the power grid.
2. Turn the DC switch at the bottom of the SUN2000 to the ON position.
3. If the battery terminal connects to the batteries, turn on the battery power switch and then the
battery switch.
4. Observe the LED indicators to determine the SUN2000 operating status. (Blinking at long
intervals: alternating 1s on and 1s off; blinking at short intervals: alternating 0.2s on and 0.2s off)
NOTICE
Category
Status
Indication
Running
indication
LED1
LED2
N/A
Steady green
Steady green
The
SUN2000 operates in the grid-tied mode.
Blinking green at
long intervals
Off
The DC is on and the AC is off.
Off
Blinking green
at long intervals
The DC is off and the AC is on.
Blinking green at
long intervals
Blinking green
at long intervals
Both the DC and AC are on, and the
SUN2000
is not operating in the
grid-tied mode.
Steady orange
Steady orange
The SUN2000 operates in the backup mode.
Blinking orange at
long intervals
Off
The DC is on, and the SUN2000 has no output
in the backup mode.
Off
Off
Both the DC and AC are off or the
SUN2000
operates in the low power consumption mode.
Steady red
Steady red
Faulty
Blinking red slowly
Steady green
Exporting power to the
powergrid, optimizer
fault.
Blinking red slowly
Steady
Orange
Backup mode, optimizer fault.
LED1 LED2

12
•The app screen snapshots provided in this document correspond to FusionHome 2.1.11.300.
The figures are for reference only.
•The name of the connected SUN2000 WiFi network is represented by SUN2000-Serial number
(SN). The SN is available on the label attached to the side of the SUN2000.
•Use the initial password Changeme upon first login. To ensure account security, change the
password immediately after login.
•If you log in for the first time and the initial SUN2000 WiFi password is not changed, you can
scan the WiFi login QR code on the side of the SUN2000 to connect to the SUN2000 WiFi
network. If connecting through the app does not work, try to connect from your mobile phone.
Using the FusionHome App
9
•The mobile phone application used for the SUN2000 is called FusionHome. This app
communicates with the SUN2000 monitoring system over WiFi. As a convenient local monitoring
and maintenance platform, it allows for querying alarms, configuring parameters, and performing
routine maintenance.
•Requirements for the mobile phone operating system: Android 4.4 or later, or iOS 8.0 or later.
•Access the Huawei App Store (http://appstore.huawei.com), Google Play
(https://play.google.com), or App Store (iOS), search FusionHome, and download the app
software package.
Connecting to the SUN2000 over a Mobile Phone
9.1
NOTICE
NOTE
Category
Status
Indication
Communication
indication
LED3
N/A
Blinks green at short intervals
The
SUN2000 is in communication.
Blinking green at long intervals
The
SUN2000
is connecting to a mobile phone.
Off
No communication.
LED3
Android

13
iOS
Quick Setting
9.2
1. On the Inverter screen, tap the corresponding SUN2000, select installer, enter the password,
and then tap Verify.
•The name of the connected SUN2000 is represented by its SN, which is available on the label
attached to the side of the SUN2000.
•The initial password is 00000a. Use the initial password upon first login. To ensure account
security, change the password immediately after login.
NOTE

14
2. On the Operation console screen, choose Quick setting to perform quick setting.
NOTE
•Set the grid code applies to the country or region where the
SUN2000 is being used and the SUN2000 application scenario.
Before setting the grid code, ensure that the DC side of the
inverter is energized.
•If the SUN2000 does not need to connect to the router, skip
Step 1 Set parameters for the Inverter to connect to the
router. If it does not need to connect to the management
system, skip Step 4 Set parameters for the Inverter to
connect to the management system.
•After the management system is successfully connected, the
SUN2000 will report the SN and installer registration code. If
the connection fails, another connection attempt will start after
10 seconds. The installer registration code is generated by the
SUN2000 automatically and is used for the installer to register
with the management system and manage the inverter.
•To add devices, tap Go to set after quick setting is complete,
and then configure parameters on the Add/Delete device
screen.

15
10 Grid Code Mapping Table
No. Grid Code Description No. Grid Code Description
1IEEE 1547-LV208 US low-voltage
power grid 2IEEE 1547-LV240 US low-voltage power grid
3IEEE 1547a-LV208 US low-voltage
power grid 4IEEE 1547a-LV240 US low-voltage power grid
5ELECTRIC RULE
NO.21-LV208 US California low- voltage power grid 6ELECTRIC RULE NO.21-LV240 US California low- voltage power grid
7HECO-LV208 US Hawaii low-
voltage power grid 8HECO-LV240 US Hawaii low- voltage power grid
9PRC_024_Eastern-
LV208 Eastern US low- voltage power grid 10 PRC_024_Eastern- LV240 Eastern US low- voltage power grid
11 PRC_024_Western-
LV208 Western US low- voltage power grid 12 PRC_024_Western- LV240 Western US low- voltage power grid
13 PRC_024_Quebec-
LV208 Canada Quebec low- voltage power grid 14 PRC_024_Quebec- LV240 Canada Quebec low-voltage power
grid
Grid codes are subject to change. The listed codes are for your reference only.
NOTE
Customer Service Contact Information
Region
Country
Email
Hotline
North
America
United
States
[e-mail]
1
-877-948-2934
Canada
[e-mail]
1
-855-482-9343
11Customer Service Contact Information

HUAWEI TECHNOLOGIES CO., LTD.
Huawei Industrial Base, Bantian, Longgang
Shenzhen, People's Republic of China
Postal code: 518129
www.huawei.com