Huawei SUN2000 Series User manual

SUN2000-(3.8KTL-11.4KTL)-USL0 Battery,
Energy Meter, and Autotransformer
Quick Guide
Issue: 05
Date: 2019-07-08
HUAWEI TECHNOLOGIES CO., LTD.

1
1Product Introduction
Component
Description
Source
Battery
Recommended:
LG RESU10H (Type-R)
Purchased by the
customer
Energy meter
Recommended:
CCS-WNC-3D-240-MB
Purchased by the
customer
Battery switch
The battery switch is located under the battery wiring box
cover and is not within sight. It is recommended to add a
visible external battery switch.
Recommended: a DC circuit breaker with a rated voltage
greater than or equal to 600 V DC and a rated current of:
•
15 A (SUN2000-3.8KTL/5KTL/7.6KTL-USL0)
•
20 A (SUN2000-9KTL/10KTL/11.4KTL-USL0)
Purchased by the
customer
Backup load
switch Recommended: a 2-pole AC circuit breaker with a rated
voltage greater than or equal to 240 V AC and a rated
current of:
•25 A (SUN2000-3.8KTL/5KTL/7.6KTL-USL0)
•30 A (SUN2000-9KTL/10KTL/11.4KTL-USL0)
Purchased by the
customer
Home load
switch Recommended: a 2-pole AC circuit breaker with a rated voltage greater than or equal to 240 V AC and a rated
current of:
•20 A (SUN2000-3.8KTL-USL0)
•25 A (SUN2000-5KTL-USL0)
•40 A (SUN2000-7.6KTL-USL0)
•50 A (SUN2000-9KTL/10KTL-USL0)
•60 A (SUN2000-11.4KTL-USL0)
Purchased by the
customer
Copyright © Huawei Technologies Co., Ltd. 2019. All
rights reserved.
The SUN2000-3.8KTL/5KTL/7.6KTL-USL0 supports two PV string inputs. The SUN2000-
9KTL/10KTL/11.4KTL-USL0 supports three PV string inputs. Two PV string inputs are used as an
example. Dashed boxes indicate optional components.
NOTE

2
2Battery Cables Connection
Cable
LG
RESU10H
(Type
-R)
Inverter
Type
Conductor Cross
-
sectional Area
Range
Outer
Diameter
Ground cable
N/A
Single
-core
outdoor copper
cable
12
–8 AWG
Prepared
by the
customer
Negative line of
the power cable
–
BAT
–
Single
-core
outdoor copper
cable
•
14–8 AWG
(SUN2000-
3.8KTL/5KTL/7.6
KTL-USL0)
•
12–8 AWG
(SUN2000-
9KTL/10KTL/
11.4
KTL-USL0)
Prepared
by the
customer
Positive line of
the power cable
+
BAT+
Prepared
by the
customer
Communications
cable
2) EN GND
4) ER_CTL_B
Multi
-paired
and individually
foil
-shielded
cable that
complies with
UL2919,
CM/CMG (NEC
type), or CMH
(CSA type)
24
–16 AWG
Prepared
by the
customer
3)
ENABLE_H
3) ER_CTL_A
4) RS485_H
5) 485A2
5) RS485_L
6) 485B2

3
3Energy Meter Cables Connection
Cable
WNC
-
3D
-240
-
MB
Inverter
Type
Conductor Cross
-
sectional Area
Range
Source
Communications
cable
A
–
8) 485B1
Multi
-paired and
individually foil
-
shielded
cable that complies with
UL2919, CM/CMG
(NEC type), or CMH
(CSA type)
24
–16 AWG
Prepared
by the
customer
B+
7)
485A1
N/A
Shield layer of the
communications
cable
Connects to the shield layer of the
communications cable
1. Connect the signal cable.
L1/L2/N
When connecting cables, ensure that the source of current transformers points to the power grid.
NOTE

4
L1/L2
Clamp the shield
layer of the
communications
cable into the
ground point.
When connecting cables, ensure that the source of current transformers points to the power grid.
2. Set the DIP switch of the energy meter as the figure below to ensure that the
communications address is 11.
If the energy meter and the SUN2000
communicate successfully, the COM indicator of
the energy meter will be green.
NOTE
NOTE

5
4Autotransformer Cables Connection
Autotran
sformer
Inverter
Type
Conductor Cross
-
sectional Area Range
Source
L1 (input)
L1 (back up
port)
•Use cables that can withstand
90°C(194°F) or 105°C
(221°F).
•
Two single-core outdoor
copper cables
•
12–6 AWG (SUN2000-
3.8KTL/5KTL/7.6KTL-
USL0)
•
10–4 AWG (SUN2000-
9KTL/10KTL/11.4KTL-
USL0)
Prepared by
the
customer
L2 (input)
L2 (back up
port)
Cables connecting between the autotransformer and SUN2000
Inverter
Type
Conductor Cross
-
sectional Area Range
Source
L1 (AC GRID)
•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).
•
SUN2000-
3.8KTL/5KTL/7.6KTL-
USL0：
•
L1, N, L2:
•
12–6 AWG (SUN2000-
3.8KTL-USL0)
•
10–6 AWG (SUN2000-
5KTL-USL0)
•
6 AWG (SUN2000-
7.6KTL-USL0)
•
PE: 6 AWGSUN2000-
9KTL/10KTL/11.4KTL-
USL0：
•
L1, N, L2:
•
6–4 AWG (SUN2000-
9KTL/10KTL-USL0)
•
4 AWG (SUN2000-
11.4KTL-USL0)
•
PE: 6 AWG
Prepared
by the
customer
N ((AC GRID)
L2 (AC GRID)
Cables connecting between the SUN2000 and AC panel, backup AC panel
Autotransformer
Type
Conductor Cross
-
sectional Area Range
Source
L1 (output)
•Use cables that can withstand
90°C (194°F) or 105°C
(221°F).
•
Five single-core outdoor
copper cables
10
–6 AWG
Prepared by
the
customer
N (output)
L2 (output)
N (input)
8 AWG
Cables connecting between the autotransformer and AC panel, backup AC panel

6
The components and cable connection of the AC panel and backup AC panel in the figure are for
reference only and can be adjusted according to the actual situation.
NOTE

7
5Commissioning
a) Set the Auxiliary Power ON/OFF switch to ON after installing the battery pack. Ensure that the
Circuit Breaker switch is in the OFF position (including the Trip position).
b) Set the Circuit Breaker switch to ON.
c) Several seconds after the Circuit Breaker switch is set to ON, four indicators will be on.
d) Ensure that the ON indicator is on and check whether the battery pack is successfully
initialized. The power-on indicator on the front should turn green.
e) Close the wiring box cover.
Powering On the System
5.1
Auxiliary Power ON/OFF switch Circuit Breaker switch
1. Put the battery pack in operation by taking the following steps.
•If the FAULT indicator on the front of the battery pack is ON or flashing, contact your
installer.
•If the battery fails to connect to the SUN2000, contact Huawei customer service hotline and
set the Auxiliary Power ON/OFF switch to OFF. Otherwise the battery power will be
exhausted and the battery cannot be charged by the inverter.
•If the SUN2000 is not powered on or the battery is not connected to it, set the Auxiliary
Power to OFF. Otherwise the battery power will be exhausted and the battery cannot be
charged by the inverter.

8
2. Power on the SUN2000.
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.
a) Turn on the battery switch between the battery pack and the SUN2000.
b) Turn on the AC switch between the SUN2000 and the power grid.
c) Turn on the DC switch at the bottom of the SUN2000.
d) Perform quick setting over the FusionHome app and add devices.
•Please set the CT rated current of CCS-WNC-3D-240-MB energy meter according to the actual
rated current of the current transformers.
•The app screen snapshots provided in this document correspond to FusionHome 2.1.11.300. The
figures are for reference only.
•The initial password for connecting the inverter WiFi is Changeme
•The initial password of the installer 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.
Model Communi cation
Address
CCS-
WNC-
3D-
240-
MB
11
NOTE

9
Powering Off the System
5.2
a) Send a shutdown command from the FusionHome app. If you log in as installer, on the
Home screen, choose Device maintenance > Inverter ON/OFF, and perform operations as
required; if you log in as user, on the main screen, choose > Settings >Inverter
ON/OFF, and perform operations as required.
b) Turn off the AC switch between the SUN2000 and the power grid.
c) Turn off the main switch between the SUN2000 and the power grid.
d) Turn off the DC switch at the bottom of the SUN2000.
e) If a battery connects to the battery port, turn off the battery switch.
1. Power off the SUN2000.
Auxiliary Power
ON/OFF switch Circuit Breaker switch
2. Power off the battery pack.
a) Remove the wiring box cover.
b) Turn off the battery pack by setting the Circuit Breaker switch to the OFF position.
c) Ensure that every indicator on the battery pack is off. It should take 60 seconds at most
for the indicators to be off.
d) Turn off the Auxiliary Power ON/OFF switch.
e) Close the wiring box cover.
•Do not turn off the Auxiliary Power ON/OFF switch in normal operation mode such as charge
and discharge mode.
•If the battery pack is not used for a long time or there is any fault on the battery pack, turn off the
Circuit Breaker switch, and then turn off the Auxiliary Power ON/OFF switch.

10
6Troubleshooting
1. Tap the battery/meter icon in Device status display of FusionHome app to check the fault
code of battery/meter.
Check the fault code list and
troubleshooting suggestion below.

11
F
ault
Code
Fault Name
Possible Cause
Suggestion
2067
Faulty Power
Collector
Cause ID = 1

In Grid Connection with Zero
Power mode, the power
collector communication is
interrupted.

In Maximum Use of Self-
Produced Power mode, the
power collector communication
is interrupted.
1. Check that the preset power collector
model is the same as the actual
model.
2.
Check that the preset
communications parameters for the
power collector are the same as the
actual configurations.
3.
Check that the power collector is
powered on and the RS485
communications cable is correctly
connected.
2068
Battery
Abnormal
Cause ID = 1

Communication abnormal
between the SUN2000 and
battery.

RS485 wire lost
Cause ID = 2

Over current of the battery
interface
Cause ID = 3

Enable signal abnormal

Enable wire lost
Cause ID = 4

Power wiring abnormal
(reverse or lost)
1.
If the FAULT indicator on the front of
the battery pack is ON or flashing,
contact your installer.
2. Check that the communications cable
and power cable between the
SUN2000 and the battery are
properly connected.
3. Check that the battery auxiliary power
ON/OFF switch is turned on properly.
4.
Send a shutdown command on the
app. Turn off the AC output switch,
DC input switch, and battery switch in
order, and then turn on the battery
switch, AC output switch, and DC
input switch in sequence after 5
minutes.
5.
If the alarm still exists, contact your
installer.
1
DDC_Battery
Over Voltage
DCDC
Converter_Battery Over
Voltage
Contact
LG Chem local customer
service
after
setting the Aux switch to OFF.
2
DDC_Battery
Over Current
DCDC
Converter_Battery Over
Current
Contact LG
Chem
local customer service
after setting the Aux switch to OFF.
3
DDC_Link
Over Voltage
DCDC
Converter_Link Over
Voltage
Contact LG
Chem
local customer service
after setting the Aux switch to OFF.
4
DDC_Link
Over Current
DCDC
Converter_Link Over
Current
Contact LG
Chem
local customer service
after setting the Aux switch to OFF.
5
DDC_Over
Temperature
DCDC
Converter_Over
Temperature
Contact LG
Chem
local customer service
after setting the Aux switch to OFF.
6
DDC_BMS_
Comm_Err
DCDC
Converter_BMS_Comm_Err
Contact LG
Chem
local customer service
after setting the Aux switch to OFF.
7
DDC_INV_C
omm_Err
DCDC Converter_INV_Comm_Err
Contact LG
Chem
local customer service
after setting the Aux switch to OFF.
8
DDC_Link
Over
Voltage_CB
Open
DCDC Converter_Link Over
Voltage_CB Open
Contact LG
Chem
local customer service
after setting the Aux switch to OFF.
2. Fault Code

12
F
ault
Code
Fault Name
Possible Cause
Suggestion
9
OVF
Over Voltage Fault
N/A
20
OVF2
Over Voltage
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
10
UVF
Under Voltage Fault
N/A
21
UVF2
Under Voltage
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
11
DVF
Deviation Voltage Fault
N/A
12
OTF
Over Temperature Fault
N/A
22
OTF2
Over Temperature
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
13
UTF
Under Temperature Fault
N/A
23
UTF2
Under Temperature
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
14
DTF
Deviation Temperature Fault
N/A
15
OCCF
Over Charge Current Fault
N/A
24
OCCF2
Over Charge Current
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
16
ODCF
Over Discharge Current Fault
N/A
25
ODCF2
Over Discharge Current
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
17
OCPLF
Over Charge Power Limit Fault
N/A
26
OCPLF2
Over Charge Power Limit
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
18
ODPLF
Over Discharge Power Limit Fault
N/A
27
ODPLF2
Over Discharge Power Limit
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.
19
BMICLOCF
Battery Monitoring IC Loss
of
Communication Fault
N/A
28
PCSLOCF2
PCS Loss of Communication
Fault 2
Contact LG
Chem local customer
service after setting the Aux switch
to OFF.

13
3. Fault Log Export
Customer Service Contact Information
Region
Country
Email
Hotline
North
America
United
States
na_inverter[email protected]
1
-877-948-2934
Canada
na_inverter[email protected]
1
-855-482-9343
7Customer Service Contact Information
F
ault
Code
Fault Name
Possible Cause
Suggestion
29
BMICLOCF2
Battery Monitoring IC Loss
of
Communication
Fault 2
Contact LG
Chem local
customer service after setting
the Aux switch to OFF.
30
BMSF2
BMS Internal
Fault 2
N/A
51
Reverse
Polarity_PV
charge
Reverse
Polarity_PV Power Charge
DC
Shut down the system (CB off,
SUN2000 off), check
the
positive and negative power
cables and ground cable,
and
re
-connect them.
52
Reverse
Polarity_Battery
Precharge
Reverse
Polarity_Battery Try to
Precharge
Check the positive and negative
power cables and ground cable,
and re
-connect them.
Tap Download to export the
battery log of .CSV format.

Huawei Technologies Co., Ltd.
Huawei Industrial Base, Bantian, Longgang
Shenzhen 518129 People's Republic of China
solar.huawei.com