Huawe SUN2000L-2KTL User manual

1
1Product Introduction
Issue: 08
Date: 2020-06-30
SUN2000L-(2KTL-5KTL) and SUN2000-(2KTL-6KTL)-L1
Battery and Smart Power Sensor
Quick Guide
Copyright © Huawei Technologies Co., Ltd. 2020. All rights reserved.
For more information about Smart Power Sensors, see Chapter 3 Smart Power Sensor Cables Connection.
The SUN2000L-(2KTL-5KTL) (SUN2000L for short) and SUN2000-(2KTL-6KTL)-L1 (SUN2000 for short) can connect to LG RESU7H (Type-
R) and LG RESU10H (Type-R) batteries as well as DDSU666-H, DTSU666-H, GAVAZZI-EM111-DIN AV8 1 X S1 X, GAVAZZI-EM112-DIN
AV0 1 X S1 X, GAVAZZI-EM340-DIN AV2 3 X S1 X, CCS-WNC-3Y-400-MB, and CCS-WNC-3D-240-MB Smart Power Sensors.
•When the battery is configured, the input voltage of
the PV strings can not exceed 495 V.
•The CAN_H and CAN_L ports of the battery are not
used in this document.
•The line colors shown in the figures in this document
are for reference only.
SUN2000L-(2KTL-5KTL)
SUN2000-(2KTL-6KTL)-L1

2
Component
Description
Source
Battery
switch
Recommended: a DC circuit breaker with a rated voltage greater than or equal to 600 V DC and a
rated current of 20
A.
Prepared by the
customer
AC switch
Recommended: a single
-phase AC circuit breaker with a rated voltage greater than or equal to 250 V
AC and a rated current of
•
16 A (SUN2000L-2KTL, SUN2000-2KTL-L1)
•
25 A (SUN2000L-3KTL, SUN2000L-3.68KTL, SUN2000-3KTL-L1, and SUN2000-3.68KTL-L1)
•
32 A (SUN2000L-4KTL, SUN2000L-4.6KTL, SUN2000L-5KTL, SUN2000-4KTL-L1, SUN2000-4.6KTL-
L1,
and SUN2000-5KTL-L1, SUN2000-6KTL-L1）
Note: Different countries or regions have different output voltage
of the power grid, please select a
single
-
phase AC circuit breaker according to the actual output voltage of the power grid, and the rated
voltage of the AC circuit breaker is greater than the actual output voltage of the power grid.
Prepared by the
customer
Main switch
Customer's general switch. The specifications are selected by the customer.
Prepared by the
customer
Recommended switch specifications:
Cable
LG RESU7H/LG
RESU10H
Port
Solar
Inverter Port
Type
Conductor Cross
-
sectional Area Range
Outer Diameter
Source
Ground cable
N/A
Single
-core outdoor
copper cable
4
–6 mm2
N/A
Prepared by
the customer
Negative line of
the power cable
–BAT–
Standard PV cable in the
industry
4
–6 mm2
•
SUN2000L:
4.5–7.8 mm
•
SUN2000: 5.9-
8.8 mm
Prepared by
the customer
Positive line of
the power cable
+ BAT+
2Battery Cables Connection
Preparing the Battery Cables
2.1
Cable
LG RESU7H/LG
RESU10H Port
SUN2000L
-
(2KTL
-5KTL)
COM Port
SUN2000
-(2KTL
-
6KTL)
-L1 COM
Port
Type
Conductor Cross
-
sectional Area Range
Outer
Diameter
Source
Communications
cable
2) EN GND
5) EN
–
5) GND
Four
-core
outdoor
shielded
twisted pair
•
When cables are
crimped: 0.20–0.35
mm2
•
When
cables are not
crimped: 0.20–1mm
2
4
–11 mm
Prepared
by the
customer
3)
ENABLE_H
6) EN+
6) EN+
4) RS485_H
4) 485A2
4) 485A2
5) RS485_L
3) 485B2
3) 485B2
Connecting the Battery Cables to the Battery Pack
2.2
SUN2000L-(2KTL-5KTL) SUN2000-(2KTL-6KTL)-L1
•For SUN2000-(2KTL-6KTL)-L1, when both battery and Smart Power Sensor are configured, they need be crimped to the 485B2 and
485A2 ports.
•The CAN_H and CAN_L ports of the battery are not used in this document.

3
Connecting the Battery Cables to the Solar Inverter
2.3
•Do not connect or disconnect battery cables when the solar inverter is running. Failing to do so may cause electric shocks.
•Before connecting battery cables, ensure that the DC switch and all the switches connecting to the solar inverter are OFF, and the
solar inverter has no residual electricity. Otherwise the high voltage of the solar inverter and battery may result in electric shocks.
•If no battery is configured, do not remove the watertight cap from the battery terminal. Otherwise the solar inverter will not comply
with its Ingress Protection Rating. If a battery is configured, set aside the watertight cap. Reinstall the watertight cap immediately
after removing the connector. The high voltage of the battery terminal may result in electric shocks.
Blue positive connector
Blue negative connector
Positive metal terminal
Negative metal terminal Ensure that the cable will not
be extracted after crimped.
Ensure that
the locking
nut is secured.
Pull the power cable back to ensure that it
is connected securely.
Click
Pull the battery cable back to
ensure that it is connected securely.
Press the buckle springs
and then remove the
watertight caps.
1. Assemble the positive and negative connectors, and then connect the power cable.
•If the battery fails to connect to the solar inverter, 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.
•If the solar inverter is not powered on or the battery is not connected to the solar inverter, switch Auxiliary Power to OFF position.
Otherwise the battery power will be exhausted and the battery cannot be charged.
•Ensure that the AC and DC disconnections are turned off before connecting the power cable to the battery pack.
1. Connect the power cable.
a) Connect the ground cable.
b) Connect the negative line of the power cable.
c) Connect the positive line of the power cable.
2. Connect the communications cable.
At first, connect the wire to terminal 2) EN GND. Then, make connections to the 3) ENABLE_H, 4) RS485_H, and 5) RS485_L terminals
one after another.
SUN2000L-(2KTL-5KTL)
SUN2000-(2KTL-6KTL)-L1
Positive connector
Negative connector
Positive metal terminal
Negative metal terminal Ensure that the cable will not
be extracted after crimped.
Ensure that
the locking
nut is secured.
Pull the power cable back to ensure that it
is connected securely.
Click
Pull the battery cable back to
ensure that it is connected securely.
Remove the watertight
caps. Use the Staubli MC4 positive and negative terminals and DC connectors
supplied with the solar inverter. Using incompatible positive and negative
terminals and DC connectors may result in serious consequences. The caused
device damage is not covered under warranty.
Use the Amphenol positive and negative terminals and DC connectors
supplied with the solar inverter. Using incompatible positive and negative
terminals and DC connectors may result in serious consequences. The
caused device damage is not covered under warranty.
The types of battery terminals used by SUN2000L-(2KTL-5KTL) and SUN2000-(2KTL-6KTL)-L1 are different.

4
•Do not connect any load between the solar inverter and the battery.
•Ensure that the following conditions are met. Otherwise the solar inverter will be damaged, or even become a fire hazard.
The battery cable is connected correctly. That is, the positive and negative terminals of the battery connect to the positive battery
terminal and negative battery terminal on the solar inverter respectively.
•The cable between the battery and the solar inverter should be less than or equal to 10 meters, and within 5 meters is recommended.
•The battery voltage can result in fatal injury. Use dedicated insulation tools to terminate cables.
2. Connect the communications cable.
When laying out signal cables, separate them from power cables to avoid strong signal interference sources.
Solar inverter No. Label
Definition
SUN2000L
-(2KTL-
5KTL)
3 485B2
RS485B, RS485 differential signal
–
4 485A2
RS485A, RS485 differential signal+
5EN–
Enable signal
–
6 EN+
Enable signal+
8PE
Grounding the shield layer
Solar inverter No. Label
Definition
SUN2000-(2KTL-6KTL)-L1
3 485B2
RS485B, RS485 differential signal
–
4 485A2
RS485A, RS485 differential signal+
5 GND
Enable signal
–
6 EN+
Enable signal+
SUN2000L-(2KTL-5KTL)
SUN2000-(2KTL-6KTL)-L1
Number of Communications
Cables

5
Connecting the Smart Power Sensor Cables to the Smart Power Sensor
3.1
3Smart Power Sensor Cables Connection
Scenario 1: DDSU666-H
1. Prepare cables between the Smart Power Sensor and the solar inverter.
Cable DDSU666-H
Port
SUN2000L-
(2KTL-5KTL)
Port
SUN2000-
(2KTL-6KTL)-L1
Port Type
Conductor Cross-
sectional Area
Range
Outer
Diameter Source
AC output
power cable
between the
Smart Power
Sensor and
the solar
inverter
3) L L (AC port) L (AC port)
Two-core (L
and N)
outdoor
copper cable
4–6 mm210–21 mm
Prepared
by the
customer
4) N N (AC port) N (AC port)
Communicati
ons cable
24) RS485A 2) 485A1
(COM port)
4) 485A2 (COM
port) Four-core
outdoor
shielded
twisted pair
•
When cables are
crimped: 0.20–
0.35 mm2
•When
cables are
not crimped:
0.20–1mm2
4–11 mm Prepared
by the
customer
25) RS485B 1) 485B1
(COM port)
3) 485B2 (COM
port)
N/A 8) PE NA Connects to the shield layer of the
communications
cable
2. Open the front cover, and then connect the cables to the DDSU666-H.
SUN2000L-(2KTL-5KTL)
SUN2000L-(2KTL-5KTL) and SUN2000-(2KTL-6KTL)-L1 support the following Smart Power Sensors:
•DDSU666-H
•DTSU666-H
•GAVAZZI-EM111-DIN AV8 1 X S1 X
•GAVAZZI-EM112-DIN AV0 1 X S1 X
•GAVAZZI-EM340-DIN AV2 3 X S1 X
•CCS-WNC-3Y-400-MB/CCS-WNC-3D-240-MB

6
Scenario 2: DTSU666-H
1. Prepare cables between the Smart Power Sensor and the solar inverter.
Cable DTSU666-H
Port
SUN2000L-
(2KTL-5KTL)
Port
SUN2000-(2KTL-
6KTL)-L1 Port Type
Conductor
Cross-sectional
Area Range
Outer
Diameter Source
AC output
power cable
between the
Smart Power
Sensor and
the solar
inverter
3) L L (AC port) L (AC port)
Two-core (L
and N)
outdoor
copper cable
4–6 mm210–21
mm
Prepared
by the
customer
10) N N (AC port) N (AC port)
Communicati
ons cable
24) RS485A 2) 485A1 (COM
port)
4) 485A2 (COM
port) Four-core
outdoor
shielded
twisted pair
•When cables
are crimped:
0.20–0.35
mm2
•When cables
are not
crimped:
0.20–1mm2
4–11 mm Prepared
by the
customer
25) RS485B 1) 485B1 (COM
port)
3) 485B2 (COM
port)
N/A 8) PE NA Connects to the shield layer of the
communications cable
•It is recommended that the Smart Power Sensor be installed in the original residential power distribution unit. If must, it can also be
installed independently outside.
•The L and N wires are different in color. Pay attention to the distinction when wiring to ensure that the wiring is correct.
•The cable colors shown in the figure are for reference only. Select appropriate cables according to local standards.
•For SUN2000-(2KTL-6KTL)-L1, when both battery and Smart Power Sensor are configured, they need be crimped to the 485B2 and
485A2 ports. Please select the proper cables based on the Conductor Cross-sectional Area Range .
SUN2000-(2KTL-6KTL)-L1

7
2. Open the front cover, and then connect the cables to the DTSU666-H.
SUN2000L-(2KTL-5KTL)
SUN2000-(2KTL-6KTL)-L1
•It is recommended that the Smart
Power Sensor be installed in the
original residential power
distribution unit. If must, it can also
be installed independently outside.
•The L and N wires are different in
color. Pay attention to the distinction
when wiring to ensure that the
wiring is correct.
•The cable colors shown in the figure
are for reference only. Select
appropriate cables according to local
standards.
•For SUN2000-(2KTL-6KTL)-L1, when
both battery and Smart Power
Sensor are configured, they need be
crimped to the 485B2 and 485A2
ports. Please select the proper cables
based on the Conductor Cross-
sectional Area Range .

8
Cable
GAVAZZI-
EM111-DIN AV8
1 X S1 X Port
SUN2000L-
(2KTL-5KTL)
Port
SUN2000-
(2KTL-6KTL)-
L1 Port Type
Conductor
Cross-sectional
Area Range
Outer
Diameter Source
AC output
power cable
between the
Smart Power
Sensor and the
solar inverter
2) L L (AC port) L (AC port) Two-core
(L and N)
outdoor
copper
cable
4–6 mm210–21
mm
Prepared
by the
customer
N N (AC port) N (AC port)
Communicatio
ns cable
6) B+ 2) 485A1 (COM
port)
4) 485A2 (COM
port) Four-core
outdoor
shielded
twisted pair
•
When cables
are crimped:
0.20–0.35
mm2
•When
cables
are not
crimped:
0.20–1mm2
4–11 mm Prepared
by the
customer
8) A- 1) 485B1 (COM
port)
3) 485B2 (COM
port)
N/A 8) PE NA Connects to the shield layer of the
communications cable
Scenario 3: GAVAZZI-EM111-DIN AV8 1 X S1 X
1. Prepare cables between the Smart Power Sensor and the solar inverter.
2. Open the front cover, and then connect the cables to the GAVAZZI-EM111-DIN AV8 1 X S1 X.
SUN2000L-(2KTL-5KTL)

9
There are two measurement modes for the Smart Power Sensor:
A: easy connection mode (preset), measures total energy without considering the direction.
B: bidirectional mode, separately measures imported and exported energy.
The connection between the Smart Power Sensor and solar inverter requires B: Bidirectional mode. The setting method is as follows:
Symbol Meaning
◄View the previous page or decrease a parameter value.
►View the next page or increase a parameter value.
Open the parameter menu or confirm a value (press for 1.5s)
◄ ► Hold down both ◄and ►for 1.5s to confirm the default
password 0000.
PASS Enter current password. The preset password is 0000.
n PASS Change password.
nEASurE
Measurement type:
A: easy connection, measures total energy without
considering the direction.
b: separately measures imported and exported energy.
SUN2000-(2KTL-6KTL)-L1
•It is recommended that the Smart Power Sensor be installed in the original residential power distribution unit. If must, it can also be
installed independently outside.
•The L and N wires are different in color. Pay attention to the distinction when wiring to ensure that the wiring is correct.
•The cable colors shown in the figure are for reference only. Select appropriate cables according to local standards.
•For SUN2000-(2KTL-6KTL)-L1, when both battery and Smart Power Sensor are configured, they need be crimped to the 485B2 and
485A2 ports. Please select the proper cables based on the Conductor Cross-sectional Area Range .

10
2. Open the front cover, and then connect the cables to the GAVAZZI-EM112-DIN AV0 1 X S1 X.
Scenario 4: GAVAZZI-EM112-DIN AV0 1 X S1 X
Cable
GAVAZZI-
EM112-DIN
AV0 1 X S1 X
Port
SUN2000L-
(2KTL-5KTL)
Port
SUN2000-(2KTL-
6KTL)-L1 Port Type
Conductor
Cross-sectional
Area Range
Outer
Diameter Source
AC output
power cable
between the
Smart Power
Sensor and the
solar inverter
2) L L (AC port) L (AC port) Two-core (L
and N)
outdoor
copper cable
4–6 mm210–21
mm
Prepare
d by the
custome
r
N N (AC port) N (AC port)
Communicatio
ns cable
4) B+ 2) 485A1
(COM port)
4) 485A2 (COM
port) Four-core
outdoor
shielded
twisted pair
•When cables
are crimped:
0.20–0.35
mm2
•When cables
are not
crimped:
0.20–1mm2
4–11 mm Prepare
d by the
custome
r
5) A- 1) 485B1
(COM port)
3) 485B2 (COM
port)
N/A 8) PE NA Connects to the shield layer of the
communications cable
1. Prepare cables between the Smart Power Sensor and the solar inverter.
SUN2000L-(2KTL-5KTL)

11
There are two measurement
modes for the Smart Power Sensor:
A: easy connection mode (preset),
measures total energy without
considering the direction.
B: bidirectional mode, separately
measures imported and exported
energy.
The connection between the Smart
Power Sensor and solar inverter
requires B: Bidirectional mode. The
setting method is as follows:
Symbol Meaning
▲View the next page or decrease a parameter value.
▼View the previous page or increase a parameter value.
Open the parameter menu or confirm a value (press for 1.5s)
▲ ▼ Hold down both ▲and ▼for 1.5s to confirm the default password 0000.
PASS Enter current password. The preset password is 0000. Note*: The value settings
page automatically opens after 3s.
n PASS Change password.
nEASurE
Measurement type:
A: easy connection, measures total energy without considering the direction.
b: separately measures imported and exported energy.
SUN2000-(2KTL-6KTL)-L1
•It is recommended that the Smart Power Sensor be installed in the original residential power distribution unit. If must, it can also be
installed independently outside.
•The L and N wires are different in color. Pay attention to the distinction when wiring to ensure that the wiring is correct.
•The cable colors shown in the figure are for reference only. Select appropriate cables according to local standards.
•For SUN2000-(2KTL-6KTL)-L1, when both battery and Smart Power Sensor are configured, they need be crimped to the 485B2 and
485A2 ports. Please select the proper cables based on the Conductor Cross-sectional Area Range .

12
Scenario 5: GAVAZZI-EM340-DIN AV2 3 X S1 X
Cable
GAVAZZI-
EM340-DIN
AV2 3 X S1 X
Port
SUN2000L-
(2KTL-5KTL)
Port
SUN2000-
(2KTL-6KTL)-L1
Port Type
Conductor
Cross-
sectional Area
Range
Outer
Diameter Source
AC output
power cable
between the
Smart Power
Sensor and the
solar inverter
4) L L (AC port) L (AC port) Two-core (L
and N)
outdoor
copper cable
4–6 mm210–21
mm
Prepared
by the
customer
N N (AC port) N (AC port)
Communicatio
ns cable
8) B+ 2) 485A1
(COM port)
4) 485A2 (COM
port)
Four-core
outdoor
shielded
twisted pair
•When
cables are
crimped:
0.20–0.35
mm2
•When
cables are
not
crimped:
0.20–1
mm2
4–11 mm Prepared
by the
customer
9) A- 1) 485B1
(COM port)
3) 485B2 (COM
port)
N/A 8) PE NA Connects to the shield layer of the
communications cable
1. Prepare cables between the Smart Power Sensor and the solar inverter.
2. Open the front cover, and then connect the cables to the GAVAZZI-EM340-DIN AV2 3 X S1 X.
SUN2000L-(2KTL-5KTL)

13
There are two measurement modes for the Smart Power Sensor:
A: easy connection mode (preset), measures total energy without considering the direction.
B: bidirectional mode, separately measures imported and exported energy.
The connection between the Smart Power Sensor and solar inverter requires B: Bidirectional mode. The setting method is as follows:
Symbol Meaning
▲View the next page or decrease a parameter value.
▼View the previous page or increase a parameter value.
Open the parameter menu or confirm a value (press for 1.5s)
▲ ▼ Hold down both ▲and ▼for 1.5s to confirm the default password 0000.
PASS Enter current password. The preset password is 0000. Note*: The value settings page automatically opens after 3s.
n PASS Change password.
SYStEn
System type:
3Pn: three-phase system, 4-wire
3P: three-phase system, 3-wire
2P: two-phase system, 3-wire
nEASurE
Measurement type:
A: easy connection, measures total energy without considering the direction.
b: separately measures imported and exported energy.
SUN2000-(2KTL-6KTL)-L1
•It is recommended that the Smart Power Sensor be installed in the original residential power distribution unit. If must, it can also be
installed independently outside.
•The L and N wires are different in color. Pay attention to the distinction when wiring to ensure that the wiring is correct.
•The cable colors shown in the figure are for reference only. Select appropriate cables according to local standards.
•For SUN2000-(2KTL-6KTL)-L1, when both battery and Smart Power Sensor are configured, they need be crimped to the 485B2 and
485A2 ports. Please select the proper cables based on the Conductor Cross-sectional Area Range .

14
Scenario 6: CCS-WNC-3Y-400-MB/CCS-WNC-3D-240-MB
Cable
CCS-WNC-3Y-
400-MB/CCS-
WNC-3D-240-
MB Port
SUN2000L-
(2KTL-5KTL)
Port
SUN2000-(2KTL-
6KTL)-L1 Port Type
Conductor Cross-
sectional Area
Range
Outer
Diameter Source
Communica
tions cable
B+ 2) 485A1 (COM
port) 4) 485A2 (COM port) Four-
core
outdoor
shielded
twisted
pair
•When cables
are crimped:
0.20–0.35
mm2
•When cables
are not
crimped: 0.20–
1mm2
4–11 mm
Prepared
by the
customer
A- 1) 485B1 (COM
port) 3) 485B2 (COM port)
N/A 8) PE NA Connects to the shield layer of the
communications cable
1. Prepare cables between the Smart Power Sensor and the solar inverter.
2. Connect the cables to the CCS-WNC-3Y-400-MB/CCS-WNC-3D-240-MB.
SUN2000L-(2KTL-5KTL)
The cable connections of CCS-WNC-3Y-400-MB and CCS-WNC-3D-240-MB are the same. Take CCS-WNC-3Y-400-MB as an example.

15
3. Set the DIP switch of the Smart Power Sensor as the figures below to ensure that the communications address is 1.
If the Smart Power Sensor and inverter communicate successfully, the COM LED of the energy meter will be green.
SUN2000-(2KTL-6KTL)-L1
•It is recommended that the Smart Power Sensor be installed in the original residential power distribution unit. If must, it can also be
installed independently outside.
•The L and N wires are different in color. Pay attention to the distinction when wiring to ensure that the wiring is correct.
•The cable colors shown in the figure are for reference only. Select appropriate cables according to local standards.
•For SUN2000-(2KTL-6KTL)-L1, when both battery and Smart Power Sensor are configured, they need be crimped to the 485B2 and
485A2 ports. Please select the proper cables based on the Conductor Cross-sectional Area Range .

16
2. Connect the communications cable to the solar inverter.
SUN2000L-(2KTL-5KTL)
SUN2000-(2KTL-6KTL)-L1
Number of Communications
Cables
The method for connecting a two-core AC output power cable is the same except that the cable is not connected to PE.
c) Check the route of the AC output power cable.
b) Connect the AC connector to the AC output port.
1. Connect the AC output power cable to the solar inverter.
a) Connect the AC output power cable to the AC connector.
Click
Connecting the Smart Power Sensor Cables to the solar inverter
3.2

17
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.
4Commissioning
Powering On the System
4.1
Auxiliary Power ON/OFF switch Circuit Breaker switch
1. Put the battery pack in operation by taking the following steps.
2. Power on the solar inverter.
(A) PV string (B) DC switch (C) solar inverter
(D) AC switch (E) Residential power distribution unit (F) Smart Power Sensor
(G) Main switch (H) Residential power meter (I) Power grid
(J) Battery (K) Battery switch (L) Home load
•Before turning on the AC switch between the solar inverter and the power grid, check that the AC voltage on the power grid side of the
AC switch is within the specified range.
•If the DC is on and the AC is off, the solar inverter reports a Grid Loss alarm. The solar inverter starts normally only after the fault is
rectified.
•If the AC is on and the battery is off, the solar inverter reports a Battery Abnormal alarm.
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 solar inverter, 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 solar inverter 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.

18
a) Turn on the battery switch between the battery pack and the solar inverter.
b) Turn on the main switch between the solar inverter and the power grid.
c) Turn on the AC switch between the solar inverter and the power grid.
d) Turn on the DC switch between the PV string and the solar inverter if there is any.
e) Turn on the DC switch at the bottom of the solar inverter.
f) Perform quick setting over the FusionSolar app. There are two methods to add the device. Method 1: Add the device by quick setting.
Method 2: On the home screen, choose Maintenance > Add/Delete device, and add the device according to actual conditions.
If the solar inverter is connected to the battery, after turning on the AC switch:
If the DC switch is turned on within 1 minute, the solar inverter will run properly in grid-tied mode.
If the DC switch is not turned on within 1 minute, the solar inverter will enter the nighttime grid-tied mode. Then, after the DC
switch is turned on, the solar inverter will shut down and then restart to run in grid-tied mode.
Connect to the inverter WLAN.
Log in as installer.

19
Battery Parameter Description
Value Range
Battery model
Specifies the
type of the connected battery. No batteries of other types can be
connected.
LG
-RESU
Maximum charge power Specifies the maximum battery discharging power.
[0, maximum
charge power]
Maximum discharge power
Specifies the maximum battery charging power.
The maximum charging power is limited by the maximum output power of the solar
inverter and whether the Charge from grid function is enabled.
[0, maximum
charge power]
End-of-charge capacity Specifies the battery charging cutoff capacity.
[90, 100]
End-of-discharge capacity Specifies the battery discharging cutoff capacity.
[12, 20]
View the Smart Power Sensor or battery status by choosing Device Monitoring on the app.
Model
Comm
Address
DDSU666-H 11
DTSU666-H 11
GAVAZZI-EM111-DIN AV8 1 X S1 X 1
GAVAZZI-EM112-DIN AV0 1 X S1 X 1
GAVAZZI-EM340-DIN AV2 3 X S1 X 1
CCS-WNC-3Y-400-MB 1
CCS-WNC-3D-240-MB 1
•Please set the CT rated current of CCS-WNC-3Y-400-MB/CCS-WNC-
3D-240-MB Smart Power Sensor according to the actual rated current
of current transformers.
•The app screen snapshots provided in this document are for reference
only.
•Obtain the initial password for connecting to the solar inverter WLAN
from the label on the side of the solar inverter.
Smart Power Sensor Parameter Description Value Range
Comm. address
Specifies the RS485 address for the connected Smart Power
Sensor. The address should be the same as the actual
address for the Smart Power Sensor.
[1, 247]
Meter
type Specifies the model of the connected Smart Power Sensor.
No Smart Power Sensors of other models can be connected.

DDSU666-H

DTSU666-H

GAVAZZI-EM111-DIN AV8 1 X S1 X

GAVAZZI-EM112-DIN AV0 1 X S1 X

GAVAZZI-EM340-DIN AV2 3 X S1 X

CCS-WNC-3Y-400-MB

CCS-WNC-3D-240-MB
g) (Optional) Measure the temperatures at the joints between the DC terminals and the connectors using a point-test thermometer.
h) Observe indicators to check the solar inverter operating status.
Under normal operation conditions of the solar inverter, the temperature rise at DC connectors should remain below 30°C at all time.

20
•The actual screens prevail.
•In the Android system, the
upgrade file can be copied
to the mobile phone. The
upgrade file name
extension must be .zip and
the file can be stored in
your required directory.
Manually select is
available.
Upgrade the Solar inverter and Battery
4.2
Method 1:Automatic
firmware detection
Method 2:Manual
firmware downloading
1. Download the solar inverter upgrade package from the FusionSolar app.
2. Upgrade the solar inverter. The solar inverter upgrade takes about 8 minutes. When the solar inverter is upgraded successfully, it will
restart. Log in again after the restart.
Obtain the new installation
package from Internal
storage/inverterapp/Upgrad
eDevice.