Goodwe BT Series User manual

BT SERIES USER MANUAL
AC-COUPLED BATTERY STORAGE RETORFIT
JIANGSU GOODWE POWER SUPPLY TECHNOLOGY CO.,LTD
No. 90 Zijin Rd., New District, Suzhou, 215011, China
www.goodwe.com
[e-mail]
340-00330-01
PV Master APP SEMS Portal APP SEMS Portal website
www.semsportal.com
LinkedIn Company's
offical website
Rev.1.1
2021-01-08

01 INTRODUCTION
TABLE OF CONTENTS
1.1 Operation Modes Introduction
1.2 Safety & Warning
1.3 Product Overview
01
02
04
03 MANUAL OPERATION
3.1 Wi-Fi Configuration
3.2 PV Master APP
3.3 CEI Auto-Test Function
19
20
20
04 OTHERS
4.1 Error Messages
4.2 Troubleshootings
4.3 Disclaimer
4.4 Technical Parameters
4.5 Other Test
4.6 Quick Check List To Avoid Danger
21
23
27
28
29
30
02 INSTALLATION INSTRUCTIONS
2.1 Unacceptable Installations
2.2 Packing List
2.3 Mounting
2.3.1 Select Mounting Location
2.3.2 Mounting
2.4 Electrical Wiring Connection
2.4.1 Battery Wiring Connection
2.4.2 On-Grid & Back-Up Connection
2.4.3 Smart Meter & CT Connection
2.5 DRED / Remote Shutdown Connection
2.6 Earth Fault Alarm Connection
05
05
06
06
07
09
09
10
13
15
16

Mode Ⅰ
Energy from grid-tied inverters optimize loads, excess will
be used to charge the battery, anymore will be exported to
the grid.
Mode Ⅲ
When grid power fails, battery will discharge to support
back-up Loads.
Mode Ⅳ
Battery could be charged by grid, and charge time/power
could be set flexibly on PV Master APP.
Mode Ⅱ
When energy from grid-tied inverters is weak, battery will
discharge to support the load in priority together with the
grid.
1.1 Operation Modes Introduction
Note:
The introduction describes a general behavior of BT
system. The operation mode can be adjusted on PV
Master App depending on the system layout. Below are
the general operation modes for BT system:
01 INTRODUCTION
GoodWe BT series bidirectional inverter is designed for both indoor and outdoor use, which could
be used with or without existing grid-tied inverter systems to store energy using batteries.
Energy produced from the grid-tied inverters will be used to optimize self-consumption, excess
will be used to charge the battery, anymore could be exported to the grid. Loads will be supported
in priority by grid-tied system, then battery power, if more power is needed, energy will be import-
ed from the grid.
BT system normally has the following operation modes based on your configuration and layout
conditions.
1.2 Safety & Warning
The BT series inverter of Jiangsu GoodWe Power Supply Technology Co., Ltd. (hereinafter
called as GoodWe) strictly complies with related safety rules for product design and testing.
Please read and follow all the instructions and cautions on the inverter or user manual during
installation, operation or maintenance, as any improper operation might cause personal or
property damage.
Caution!
Failure to observe a warning indicated in this manual may result in injury
Danger of high voltage and electric shock!
Components of the product can be recycled.
This side up! The package must always be transported, handled and stored in
such a way as the arrows always point upwards.
Danger of hot surface!
No more than six (6) identical packages being stacked on each other.
Products should not be disposed as household waste.
Fragile - The package/product should be handled carefully and never be
tipped over or slung.
Refer to the operating instructions.
Keep dry! The package/product must be protected from excessive humidity and
must be stored under cover.
Signals danger due to electric shock and indicates the time to wait (5 minutes)
before it is safe to touch the internal parts of the inverter after it has been
disconnected from it power source
CE Mark
Symbols explantion
5min
02
01

Safety warning
Any installation and operation on inverter must be performed by qualified electricians, in compli-
ance with standards, wiring rules or requirements of local grid authorities or companies (like AS
4777 and AS/NZS 3000 in Australia).
Prohibit inserting and pulling the AC and DC terminals when the inverter is running.
Before any wiring connection or electrical operation on inverter, all DC and AC power must
be disconnected from inverter for at least 5 minutes to make sure inverter is totally isolated
to avoid electric shock.
The temperature of inverter surface might exceed 60℃ during operation, so please make
sure it has cooled down before touching it, and make sure the inverter is out of reach of
children.
Do not open the inverter's cover or change any components without manufacturer's autho-
rization, otherwise the warranty commitment for the inverter will be invalid.
Usage and operation of the inverter must follow instructions in this user manual, otherwise
the protection design might be impared and warranty commitment for the inverter will be
invalid.
Appropriate methods must be adopted to protect inverter from static damage. Any damage
caused by static is not warranted by manufacturer.
Battery negative(BAT-) on inveter side is not grounded as default design.
Connecting BAT- to EARTH are strictly forbidden.
The inverter, with built-in RCMU, will exclude possibility of DC residual current to 6mA, thus
in the system an external RCD (type A) can be used(≥30mA).
In Australia, the inverter internal switching does not maintain neutral integrity, which must
be addressed by external connection arrangements like in the Off-Grid System Connection
Diagram in page 17.
In Australia, output of back-up side in switchbox should be labeled "Main Switch UPS
Supply", the output of normal load side in switch box should be labeled "Main Switch Invert-
er Supply".
LED Indicators
Battery Terminal
Wi-Fi Module
DRED & Remote Shutdown
Smart Meter Communication Cable
BMS Communication Cable
Back-Up Port On-Grid Port
To Smart Meter
To Battery
HYBIRD LED INDICATORS
INDICATOR
SYSTEM
BACK-UP BATTERY
GRID
ENERGY
COM
WiFi
FAULT
STATUS
ON = System is ready BLINK = System is starting up OFF = System is not operating ON = Back-up is ready / power available OFF =
Back-up is off / on power available
ON = Battery is charging BLINK 1 = Battery is discharging BLINK 2 = Battery is low / soc is low OFF =
Battery is disconnected / not active
ON = Grid is active and connected BLINK = Grid is active but not connected OFF = Grid is not active ON =
Consuming energy from grid / buying
BLINK 1 =
Supplying energy to grid / zeroing
BLINK 2 =
Supplying energy to grid / selling
OFF =
Grid not connected or system not operating
ON = BMS and meter communication ok OFF =
BMS and meter communication fail
ON = WiFi connected / active BLINK 1 = WiFi system resetting BLINK 2 = WiFi not connect to router BLINK 4 = WiFi server problem OFF = WiFi not active ON = Fault has occurred BLINK4 = CT wiring fault OFF = No fault EXPLANATION
SYSTEM BACK-UP BATTERY GRID ENERGY COM WiFi FAULT
BLINK 1 = Meter communication ok,
BMS communication fail
BLINK 2 = BMS communication ok,
meter communication fail
BLINK1 = Overload of back-up
Output / reduce load
OFF
1.3 Product Overview
Wi-Fi Reset
04
03

BT SERIES USER MANUAL
AC-COUPLED BATTERY STORAGE RETORFIT
2.1 Unacceptable Installations
INSTALLATION INSTRUCTIONS 02
2.2 Packing List
Please avoid the following installations，which will damage the system or the Inverter.
Upon receiving the hybrid inverter, please check if any of the components as shown below are
missing or broken.
Inverter battery input cannot be connected to
incompatible batteries.
Back-up side cannot be connected to grid.
Back-Up
On-Grid
For general version, back-up cannot connect in parallel.
For further advanced application, please contact after-sales.
Back-Up Back-Up
Load
On-Grid
Inverter does not support off-grid function in grid-less
area.
On-Grid or back-up side cannot be connected to any
AC generator.
One meter cannot be connected to multiple inverters,
and different CTs cannot be connected to a same line cable.
Smart Meter
Positive & Negative
BAT
Inverter AC Cover Pin Terminal
Wall-Mounted
Bracket
PE Terminal User Manual Quick Installation
Instructions
Smart Meter
With 3 CT
On-Grid
Generator
Back-Up
Pin Terminal Fixed Screw
Battery
Battery
Incompatible battery
&
For inverter's protection and convenient maintenance, mounting location for inverter should be
selected carefully based on the following rules:
Any part of this system shouldn't block the switch and breaker from disconnecting the inverter
from DC and AC power.
Rule 1. Inverter should be installed on a solid surface, where is suitable for inverter's dimensions
and weight.
Rule 2. Inverter should be installed vertically or lie on a slope of no more than 15°.
2.3 Mounting
2.3.1 Select Mounting Location
300mm
500mm
200mm 200mm
Upward
Downward
Front
Both sides
---------- 300mm
------ 500mm
------------- 300mm
-------- 200mm
Keep Away From Sunlight Keep Dry Keep It Clear Of Snow Sun Rain Accmulated Snow
300mm
Rule 3. Ambient temperature should be lower than 45°C.
(High ambient temperature will cause power derating of inverter.)
Rule 4. The inverter installation should be protected under shelter from direct sunlight or bad
weather like snow, rain, lightning etc.
Rule 5. Inverter should be installed at eye level for convenient maintenance.
Rule 6. Product label on inverter should be clearly visible after installation.
Rule 7. Leave enough space around the inverter according to the below figure.
Max
15°
06
05

110mm 120mm
120mm
Wall Bracket
Self-Tapping Screws
Expansion Pipe
The lock is not included in the package.
It can be purchesed by user.
Inverters could be locked for anti theft purposes if it is necessary for individual require-
ments.
Note: Bearing capacity of the wall must be higher than 25kg, otherwise may not
be able to keep the inverter from dropping.
2.3.2 Mounting
Inverter cannot be installed near flammable, explosive or strong electro-magnetic
equipment.
The inverter is suitable for mounting on concrete or other non-combustible surface only.
Step 1
Step 2
Step 4
Please use the mounting bracket as a template to drill 4 holes in the right positions
(10mm in diameter,and 80mm in depth)
Use expansion bolts in accessory box and fix the mounting bracket onto the wall tightly.
Ground cable shall be connected to the ground plate on grid side.
Carry the inverter by holding the heatsink on both sides and place the inverter on the
mounting bracket.
Step 3
08
07

Note: For the compatible lithium batteries (Pylon/BYD) connection, please refer to
battery connection part in BT quick installation instructions.
Note
1. Please use BAT plugs and
connectors in accessory box.
2. BAT cable should be standard,
4-6mm2 BAT cable.
Note: There will be a click sound if connectors are inserted correctly into BAT plugs.
Please be careful about any electric shock or chemical hazard.
For battery without build-in DC breaker, make sure there is an external DC breaker (≥40A)
connected.
Step 1
Step 3
2.4 Electrical Wiring Connection
2.4.1 Battery Wiring Connection
Prepare BAT cables and BAT plugs
Screw the cap on and plug it onto inverter side.
Step 2
Connect BAT cables to BAT connectors
Note
1. BAT cable must be tightly crimped
into the connectors
2. There will be a click sound if
connectors are inserted correctly
into BAT plugs.
OFF
Make sure that the battery switch is off and battery nominal voltage meets ET series'
specification before connecting battery to inverter. Make sure inverter is totally isolated
from PV and AC power.
Please follow the requirements and steps below strictly. Using improper wire may cause
bad contact and high impedance, which is dangerous to the system.
Use the right BAT plugs from the accessory box.
The maximum battery current is 25A, please use the tin-plated cables of which the cross section
ranges from 4 to 6 mm² (AWG 10). Battery cable requirements are as Figure 2.4.1-1.
Figure 2.4.1-1
Battery wiring connection process
Note: The absence of AC breaker on back-up side will lead to inverter damage if an
electrical short circuit happens on back-up side.
Make sure the inverter is totally isolated from any DC or AC power before connecting AC
cable.
AC cable is required to connect to both on-grid and back-up side.
2.4.2 On-Grid & Back-Up Connection
An external AC breaker is needed for on-grid connection to isolate from grid when necessary.
The requirements of on-grid AC breaker are shown below.
C
A
B
Grade
A
B
C
Description
Outside diameter insulation
Conductor core section
Conductor core length
Value
5.5-8.0 mm
4-6 mm2
15 mm Inverter model
GW5K-BT
GW6K-BT
GW8K-BT
GW10K-BT
AC breaker specification
25A / 400V (e.g. DZ47-60 C25)
25A / 400V (e.g. DZ47-60 C25)
32A / 400V (e.g. DZ47-60 C32)
32A / 400V (e.g. DZ47-60 C32)
7mm
7mm
1. Use separated AC breaker for individual
inverter.
2. On the AC side, the individual breaker
should be connected between inverter
and Grid but before loads.
AC Breaker
Ac Breaker
AC Breaker
Grid
AC Breaker
Loads
Grid
MC
MC
10
09

Grade
A
B
C
D
Description
Outside diameter
Separated wire length
Conductor wire length
Conductor core section
Value
13-18 mm
20-25 mm
7-9 mm
4-6 mm2
Note:
1. Neutral cable shall be blue, line cable shall be black or brown (preferred) and protec-
tive earth cable shall be yellow-green.
2. For AC cables, PE cable shall be longer than N&L cables, so in case that the AC cable
slips or is taken out, the protecting earth conductor will be the last to take the strain.
Prepare the terminals and AC cables according to the right table.
Step 1
ABC
D
Put AC cable through terminal cover as shown in the figure.
Note: Please use the terminals in accessory box.
Press the 10 connectors on cable conductor core tightly.
Note: Make sure cable jacket is not locked within the connector.
Step 2
Step 3
Step 4
Special adjustable setting
The inverter has a field where the user could set functions, such as trip points, trip time, time of
reconnection, active and invalid of QU curve and PU curve. Fuctions can be adjusted through
special software. If insterested, please contact with our department of server.
Declaration for back-up function
The back-up output of BT hybrid inverters have over load ability.
For details please refer to the technical parameters of BT series inverter(4.3 se)
And the inverter has self-protection derating at high ambient temperature.
The below statement lays out general policies governing the energy storage inverters of the series
EH, EM, ES, ET, BH, BT and SBP.
1. For hybrid inverters (Series ES, EM, EH and ET), the standard PV installation typically consists of
the connection of the inverter with both panels and batteries. In the case where the system is
not connected to the batteries, the back-up function is strongly not advised for use. Manufactur-
er shall not cover the standard warranty and be liable for any consequences arising from users
not following this instruction.
2. Under normal circumstances, the back-up switching time is less than 10 ms (the minimal
condition to be considered as the UPS level). However, some external factors may cause the
system to fail on Back-Up mode. As such, we recommend the users to be aware of conditions
and follow the instructions as below:
• Do not connect loads if they are dependent on a stable energy supply for a reliable operation
• Do not connect the loads which may in total exceed the maximum back-up capacity
• Try to avoid those loads which may create very high start-up current surges such as inverter
air-conditioner, high-power pump etc.
• Due to the condition of the battery itself, battery current might be limited by some factors
including but not limited to the temperature, weather etc.
1. Connect the assembled AC cables into AC terminals with fastening torque about
2.0-2.5N.m.
Note: Connect back-up terminals before connecting on-grid terminals. Make
sure it is not connected to a wrong side.
2. Lock the cover and screw the cap.
Cables
Screw Cap
AC Sheet Cover
The Insulator
Single Hole
Seal Ring
12
11

Accepted loads as below:
• Inductive load: 1.5P non-frequency conversion air-conditioner can be connect to back-up side.
Two or more non-frequency conversion air-conditioner connect to back-up side may cause UPS
mode to be unstable.
• Capacitive load: Total power <= 0.6 x nominal power of model. (Any load with high startup current
at start-up is not accepted.)
• For complicated application, please contact after-sales.
Note:
For convenient maintenance, please install a "4Pole3Throw" on back-up and on-grid
side. Then it is adjustable to support load by back-up or by grid or default settings.
1. Back-up load is supplied from
back-up side.
2. Back-up load is isolated.
3. Back-up load is supplied from grid
side.
Back-Up
SP3T
1
2
3
On-Grid
Declaration for back-up overload protection
Inverter will restart itself if overload protection triggers. The preparation time for restarting will be
longer and longer (max one hour) if overload protection repeats. Take following steps to restart
inverter immediately.
• Decrease back-up load power within max limitation
• On PV Master App → Adcanced Setting → Click "Reset Back-Up Overload History".
2.4.3 Smart Meter & CT Connection
Make sure AC cable is totally isolated from AC power before connecting Smart Meter &
CT.
The Smart Meter with CT in product box is compulsory for BT system installation, used to detect
grid voltage and current direction and magnitude, further to instruct the operation condition of
BT inverter via RS485 communication.
Note:
1. The Smart Meter with CT is well configured, please do not change any setting on
Smart Meter.
2. One Smart Meter can only be used for one ET inverter.
3. Three CTs must be used for one Smart Meter, and must be connected on the same
phase with Smart Meter power cable.
Smart Meter LED indications
Detailed pin function of each port on BT
BMS：CAN communication is configured by default. If 485 communication is used, please contact
after-sales to replace with the corresponding communication line.
POWER
ENERGY
COM
Note:
1. Please use the Smart Meter with 3 CTs in product box.
2. CT cable is 3m as default, could be extended to a maximum of 5m.
3. Smart Meter communication cable (RJ45) is attached on the inverter ("To Smart
Meter" cable), could be extended to a max of 100m, and must use standard RJ45
Smart Meter & CT connection diagram
GridLoad
OFF
ON
PE
N
L3
L2
L1
Grid
Load
CT A connect to L1
CT B connect to L2
CT C connect to L3
CT C
CT B
CT A
To Smart Meter
Power Meter
Grid side
Smart Meter
Position
1
2
3
4
5
6
7
8
Color
Orange&white
Orange
Green&white
Blue
Blue&white
Green
Brown&white
Brown
EMS
485_A
485_B
485_A
NC
NC
485_B
NC
NC
BMS Function
485_A2
NC
485_B2
CAN_H
CAN_L
NC
NC
NC
Smart Meter Function
NC
NC
485_B1
NC
NC
485_A1
485_B1
485_A1
STATUS
POWER
ENERGY
COM
OFF
Not working
/
ON
Working
Importing
Blink one time when it transfer data to inverter
Blinking
/
Exporting
14
13

Step 4
Step 3-1 For DRED
1. Put the cable through the plate.
2. Wiring from the No. 5 and 6 holes respectively.
Connect DRED terminal to the
right position onto the inverter.
Step 3-2 For Remote Shutdown
1. Put DRED cable through the plate.
2. Connect DRED cable on the 6-pin terminal.The
function of each connection position is shown as
below.
2.6 Earth Fault Alarm Connection
BT series inverter complies with IEC 62109-2 13.9. Fault indicator LED on the inverter cover will
light up and the system will email the fault information to customer.
123456
Screw Nut
The
Insulator
Screw Cap
RS485
Communication Board
CableSingle Hole
Seal Ring
123456
Screw Nut
The
Insulator
Screw Cap
RS485
Communication Board
CableSingle Hole
Seal Ring
Step 2
1. Plug out the 6-pin terminal and dismantle the
resistor on it.
2. Plug the resistor out, leave the 6-pin terminal
for next step.
Note: The 6-pin terminal in the inverter has
the same function as DRED. Please
leave it in the inverter if no external
device is connected.
Screw this plate off from the inverter.
Note: DRED should be connected
through "DRED Port" as the
figure shows.
Step 1
2.5 DRED / Remote Shutdown Connection
DRED (Demand response enabling device) is used for installations in Australia and New Zealand
(also used as remote shutdown function in European countries), in compliance with Australia and
New Zealand safety requirements(Or European countries). The inverter integrates the DRED
control logic and provides the DRED interface. DRED is not provided by the manufacturer.
Detailed connection of DRED / Remote shutdown is shown below:
Anti-reverse function connection
If BT system (connected with grid-tied inverters) requires anti-reverse function, it is operable but
please note:
1. This diagram is only for installation where there is exporting power limit function requirement.
2. For anti-reverse function, it can be set on PV Master App → Advanced Setting → Power Limit.
3. This diagram will only applies if grid-tied inverter has anti-reverse function build-in. And the
power limitation value can be set on grid-tied inverter.
4. When using anti-reverse function, it would buy about 150W from the grid.
Connection diagram
[1] This cable is a theoretical connection supporting anti-reverse function, which could
be different for different grid-tied inverters.
OFF
ON
To SmartMeter
Anti-Reverse connection[1]
CT
CT
Grid-Tied Inverter
PE
N
L3
L2
L1
Smart Meter
Grid
Load
Meter
NO.
Function
1
DRM1/5
2
DRM2/6
3
DRM3/7
4
DRM4/8
5
REFGEN
6
COM / DRMO
NO.
Function
5
REFGEN
6
COM / DRMO
PV
16
15

Note: According to Australian safety regulation, the neutral cable of on-grid side and
back-up side must be connected together, otherwise back-up function will not work.
This diagram is an example for application that Neutral separates with PE in distribution box.
Such as: China, Germany, Czech Republic, Italy, etc. (Please follow local wiring regulations!)
This diagram is an example for application that Neutral connects together with PE in distribution box.
Such as: Australia, New Zealand, South Africa, etc. (Please follow local wiring regulations!)
When the inverter is working in back-up mode, neutral and PE on back-up side are connected together via the
internal relay. And this internal relay will be open when the inverter is working in the grid-tied mode.
System connection diagrams
Distribution box
On-Grid
Back-Up
Battery
Meter
Meter
L1
L2
L3
N
E-N
Link
Smart
Meter
Don't connect this terminal to the
application where the neutral wire
and PE wire are connected together.
RCD
N-BAR
Hybrid Inverter
E-BAR
BMS
E-BAR
Grounding screw hole
at the lower right corner
Grounding screw hole
at the lower right corner
RCD
orPE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
PE
L1
L2
L3
N
L1
L2
L3
N
PE
Distribution box
On-Grid
Back-Up
RCD
Normal Loads
L1 L2 L3 N PE
L1 L2 L3 N PE
PE
Grid
Hybrid Inverter
Battery
BMS or
N
PE
Back-Up
Loads
Back-Up
Loads
Normal Loads
Grid
Smart
Meter
E-BARE-BAR
RCD
Wiring system for BT series hybrid inverter
Note: This diagram indicates wiring structure of BT series AC coupled inverter, not the
electric wiring standard.
Please select Breaker according to the specification below
①
②③④
25A/400V AC breaker
25A/400V AC breaker
32A/400V AC breaker
32A/400V AC breaker
⑤
40A/600V
DC breaker
Depends on
household
loads
Inverter
GW5K-BT GW6K-BT GW8K-BT
GW10K-BT
OFF
ON
1. For batteries with attached breaker, the external DC breaker can be
omitted.
2. Please use CT A for L1, CT B for L2 and CT C for L3. And follow "House(K)
→Grid(L)" direction to do the connection. Otherwise there will be an error reminded by PV Master App.
To Battery
③ AC Breaker
① DC Breaker
⑤ AC Breaker
PE
N
L3
L2
L1
To Smart Meter
Smart Meter
② AC Breaker
1-Phase
Load
3-Phase
Load
Grid
PV
L1 L2 L3 N
3-Phase
Grid-Tied Inverter
Battery
④ AC Breaker
Load
CT B CT A CT C
Power Meter
Grid side
18
17

Wi-Fi reset & reload
Wi-Fi reset means restarting Wi-Fi module. Wi-Fi settings will be reprocessed and saved automat-
ically. Wi-Fi Reload means setting Wi-Fi module back to default factory setting.
Note:
1. Please make sure the password, Encryption method / algorithm is the same with the
router's.
2. If everything is correct, the Wi-Fi LED on inverter will change from double blink to quartic
blink then to solid status, which means Wi-Fi has connected to the server successfully.
3. Wi-Fi configuration could also be done on PV Master App, details please check on PV
Master App.
3.2 PV Master App
PV Master is an external monitoring/ configuration application for
hybrid inverters, used on smart phones or tablet for both Android
and iOS system. Main functions are as below:
1. Edit system configuration to make the system work as customer
needs.
2. Monitor and check the performance of the hybrid system.
3. Wi-Fi configuration.
Please download "PV Master App" from www.goodwe.com or scan
the QR code on the back of this user manual.
3.3 CEI Auto-Test Function
PV auto-test function of CEI is integrated in PV Master App for Italy's safety country requirements.
For detailed instruction of this function please refer to "PV Master Operation Instructions".
95048EHU12345678
4:21 PM 100%
VIRGIN
Waiting
Safety Country
Battery Type
Operation Model
Meter Communication Status
BMS Communication Status
Back-Up Switch
Anti-Reverse Function Switch
English
Battery-Box H6.4
Normal
CT connection
Alarm warning
On
Off
Overview Param Set
0.00(kW)
0.00(kW)
0.00(kW)
0.00(kW)
?
Wi-Fi Reset Button Wi-Fi
RESET
FA U LTWi-FiCOMENERGYGRIDBATTERYBACK-UPSYSTEM
03 MAMUAL OPERATION
3.1 Wi-Fi Configuration
This part shows configuration on the web page.
Wi-Fi configuration is absolutely necessary for online monitoring and maintenance.
Preparation:
1. Inverter must be powered up with battery or grid power.
2. Router with available internet access to the website www.semsportal.com is required.
1. Connect Solar-WiFi* to your PC or smart phone (* its
named the last 8 character of the inverter's serial
No.).
2. Open browser and login 10.10.100.253 Admin (User):
admin; Password: admin.
3. Then click "OK".
1. Click "Start Setup" to choose your router.
2. Then click "Next".
1. Fill in the password of ther router, then click
"Next".
2. Click "Complete".
Device information
Firmware version
MAC address
Wireless AP mode
SSID
IP address
Wireless STA mode
Router SSID
Encryption method
Encryption algorithm
Router Passowrd
1.6.9.3.38.2.1.38
60:C5:A8:60:33:E1
Enable
Solar-WiFi
10.10.100.253
Disable
WiFi_Bum-in
WAP/WAP2-PSK
AES
WiFi_Bum-in
Cannot join the network, may be caused by:
Save success!
Add wireless network manually
Please enter the wireless network passwork:
No router / weak WiFi signal / password is not correct
Network name (SSID)
Encryption method
Encryption algorithm
Passwork (8-63 bytes)
show psk
Help: Wizard will help you to complete setting with one
minute.
Note: Case sensitive for SSID and password, Please make sure
all parameters of wireless network are matched with router,
including password.
Click "Complete", the current configuration will take effect after
restart.
If you still neet to configure the other pages of information,
please go to complete your required configuration.
Configuration is completed, you can log on the Management
page to restart device by Click on "OK" button.
Confirm to complete?
Start Setup
Back Next
Back Complete
WiFi-Test
WPA/WPA2-PSK
AES
Router password
Step 1
Step 2 Step 3
Please select you current wireless network
Help: When RSSI of the selected Wi-Fi network is lower than
15%, the connection may be unstable.Please select other
available network or shorten the distance between the device
and router. If you wireless router does not broadcast SSID,
please click "Next" and add a wireless network manually.
SSID
WiFi_Burn-in
WiFi_Burn-in
WiFi_Burn-in
WiFi_Burn-in2
RSSI
66
100
70
72
Channel
1
1
1
1
AUTH/ENCRY
WPAPSKWPA2PSK/TKIPAES
WPAPSKWPA2PSK/TKIPAES
WPAPSKWPA2PSK/TKIPAES
WPAPSKWPA2PSK/TKIPAES
Refresh
Back Next
CancelOK
admin
Remember the password(R)
*****
Admin(U) :
Password :
10.10.100.253
Wi-Fi reset
Short press reset button.
Wi-Fi LED will blink for a few seconds.
Wi-Fi reload
Long press reset button (longer than 3s).
Wi-Fi LED will double blink until Wi-Fi
configuration again.
Note:
Wi-Fi Reset & Reload function is only used when:
1. Wi-Fi loses connection to internet or cannot connect to PV Master App
successfully.
2. Cannot find "Solar-WiFi signal" or have other Wi-Fi configuration problems.
3. Please do not use this button if Wi-Fi monitoring works well.
20
19

4.1 Error Messages
The error messages below will be displayed on PV Master App or reported by e-mail if the error
occurs.
04 OTHERS
The sequence of on-grid wire is wrong Inverter detects that phase angle of L2 and L3 are reversed Reverse connection order of L2 and L3 cable.
ERROR MESSAGE EXPLANATION REASON SOLUTIONS
Check (use multi-meter) if there is voltage (normally should be close to 0V) between earth & inverter frame. If there is a voltage, it means the neutral &
ground cables are not connected well on the AC side. If it happens only in the early morning/dawn /rainy days with higher air humidity and is recovered
soon, it should be normal.
Check (use multi-meter) if there is high voltage (normally should be lower than 10V) between N & PE cable on the AC side. If the voltage is higher than 10V,
it means the neutral & ground cable are not connected well on AC side or restart inverter.
1. Check (use multi-meter) if AC side has voltage . Make sure grid power is available.
2. Make sure AC cables are connected tightly and well.
3. If all is well, please try to turn off AC breaker and turn on again in 5 mins.
1. Make sure safety country of the inverter is set right.
2. Check (use multi-meter) if the AC voltage (Between L & N) is within a normal range (also on AC breaker side)
a. If the AC voltage is high, then make sure the AC cable complies with that required on user manual and the AC cable is not too long.
b. If the voltage is low, make sure the AC cable is connected well and the jacket of the AC cable is not compressed into the AC terminal.
3. Make sure the grid voltage of your area is stable and within normal range.
1. Make sure the safety country of the inverter is set right.
2. If safety country is right, then please check on the inverter display if AC frequency (Fac) is within a normal range.
3. If FAC failure only appears a few times and is resolved soon, it should be caused by occasional grid frequency unstability.
1. Try to decrease surrounding temperature.
2. Make sure the installation complies with the instruction on inverter user manual.
3. Try to close the inverter for 15 mins, then start up again.
1. Use multi meter to check if the resistance between earth & inverter frame is about zero. If it's not, please ensure that the connection is well.
2. If the humidity is too high, isolation failure may occur.
3. Check the resistance between BAT to earth, if the resistance is lower than 33.3k, check the system wiring connection.
4.Try to restart the inverter, check if the fault is still occurs, if not, means it is just an occasional situation, or contact after-sales.
Try to restart the inverter,check if it still occurs. If not,it is just an occasional situation. Otherwise, contact after-sales immediately.
Try to restart the inverter,check if it still occurs. If not,it is just an occasional situation. Otherwise, contact after-sales immediately.
Try to restart the inverter,check if it still occurs. If not,it is just an occasional situation. Otherwise, contact after-sales immediately.
Try to restart the inverter,check if it still occurs. If not,it is just an occasional situation. Otherwise, contact after-sales immediately.
Decrease back-up loads to make sure the total load power is lower than back-up nominal output power (please refer to page 12).
Public grid power is not available (Power
lost or on-grid connection fails)
BAT voltage is too high
Ground leakage current is too high
The battery voltage is higher than the max BAT input
voltage of the inverter.
Utility Phase Failure
Utility Loss
VAC Failure
Isolation Failure
Ground Failure
Relay Check Failure
Grid voltage is not within permissible
range
Grid frequency is not within permissible
range
Temperature inside of the inverter is too
high
Self checking of relay failure
Internal communication fails
BUS voltage is too high
Back-up side is over loaded
Inverter detects that AC voltage is beyond the normal
range required by the safety country
Inverter does not detect the connection of grid
Inverter detects that the grid frequency is beyond the
normal range required by the safety country
The inverter's working environment leads to a high
temperature condition
Ground insulation impedance of Battery
is to low
Isolation failure could be caused by multiple reasons like
battery not being grounded well, DC cable is broken,
battery are aged or surrounding humidity is comparatively
heavy, etc.
Neutral & ground cables are not connected well on AC
side or just an occasional failure
Inverter detects a higher DC component in AC output
Caused by a strong external magnetic field etc.
Caused by a strong external magnetic field etc.
Total back-up load power is higher than the back-up
nominal output power
Ground failure could be caused by multiple reasons like
that the neutral cable on the AC side is not connected well
or the surrounding humidity is comparatively heavy, etc.
/
/
/
DC Injection High
EEPROM R/W Failure
SPI Failure
DC Bus High
Back-Up Over Load
FAC Failure
BAT Over Voltage
Over Temperature
Check battery voltage is lower than Max Battery Input Voltage of the inverter. If voltage of Battery is high, please reduce battery module.
22
21

BT does not start up with only battery
Solution:
Make sure the voltage of battery is higher than 180V, otherwise battery cannot start BT up.
High power fluctuation on battery charge or discharge:
Solution:
Check if there is a fluctuation on load power.
Battery does not charge:
Solution:
1. Make sure BMS communication is OK on PV Master.
2. Make sure the CT is connected in the right position and to right direction as on the user manual
page 12
3. Make sure the total load power is much higher than PV power.
About Wi-Fi Configuration
Q: Why can't I find the Solar-WiFi* signal on mobile devices?
A: Normally Solar-WiFi* signal could be searched right after inverter has powered up. But Solar-Wi-
Fi signal will disappear when BT connects to internet. If changes to the setting are required,
connect to the router to change. If you cant find the WiFi signal or connect to the router, then
please try to reload Wi-Fi (please refer to BT user manual page 17).
Q: Why can't I connect Solar-WiFi* signal on my phone?
A: The Wifi module can only connect to one device at a time. If the signal is already connected to
another device at the time for some reason, you cannot connect to the signal.
About Battery Operation
Q: Why does the battery not discharge when grid is not available, while it discharges
normally when grid is available?
A: On the App, off-grid output and back-up function should be turned on to make battery
discharge under off-grid mode.
Q: Why is there no output on back-up side?
A: For back-up supply, the "Back-Up Supply" on PV Master App must be turned on. Under off-grid
Problems During Operation
Questions & Answers (Q & A)
Param
Battery (Battery-Box H 11.5)
Battery Status
Battery Data
BMS Status
SOH (From BMS)
Protocol Code
Charge Current Limit (From BMS)
Discharge Current Limit (From BMS)
Waring (From BMS)
Temperature (From BMS)
SOC: 79%, Discharge
479.9V / 0.0A / 0.08kW
Normal
100.0%
256
20.0A
25.0A
Normal
24.6℃
Overview Param Set
Inverter
SN
Firmware Version
Safety country
Work status
Error
93648ENU172W0003
02024
Brazil
Normal (Back-Up)
• Battery connection: Confirm the connection between BT and battery : polarities (+/-) are not
reversed, refer to Figure 4.2-1
• On-grid & back-up connection: Confirm on-grid connected to power grid and back-up contect-
ed to loads: polarities (L1/L2/L3/N are in sequence) are not reversed, refer to Figure 4.2-2.
• Smart Meter & CT connection: Make sure Smart Meter & CT are connected between house
loads and grid, and follow the Smart Meter direction sign on CT, refer to Figure 4.2-3.
4.2 Troubleshootings
Checking Before Turning On AC Power
Figure 4.2-1 Figure 4.2-2
Note: For compatible lithium batteries, BMS status will display "Normal" after selecting
the right battery company.
Battery settings, BMS communication and safety country:
After connecting Solar-WiFi* (*The Wi-Fi signal is named the last 8 characters of the inverter's
serial No.), check on PV Master App "Param" to make sure battery type is the same as what you
have installed, and "Safety Country" Setting is right. Please set it right in "Set" if the setting is not
right.
Checking as Start BT up and Turn On AC Power
① Power LED
② Energy consumption LED
③ Communications LED
④ Reset switch
⑤ USB Port
Figure 4.2-3
Grid
House
Loads
24
23

mode or grid power is disconnected, "Off-Grid Output Switch" function must be turned on as well.
Note: As turn “off-grid output switch” on, don’t restart inverter or battery, otherwise
the function will switch off automatically.
Q: Why does the battery SOC suddenly jump to 95% on the Portal?
A: This normally happens on when BMS communication fail on lithium. If battery enter float
charge, SOC will be reset to 95% automatically.
Q: The battery cannot be fully charged to 100%.
A: Battery will stop charge when battery voltage reaches charge voltage set on PV Master App.
Q: Why battery switch always trip when it starts up (Lithium battery)?
A: The switch of lithium battery normally trips for following reasons:
1. BMS communication fails.
2. Battery SOC is too low, battery trips to protect itself.
3. An electrical short-cut happened on battery connection side. Or other reasons please contact
with our department of server for details.
Q: Which battery should I use for BT?
A: For BT series inverter, it could connect lithium batteries which have compatibility with BT series
inverter with nominal voltage from 180V to 600V. For compatible lithium batteries please refer to
battery list in PV Master App.
About PV Master Operation and Monitoring
Q: Why can't I save settings on PV Master App
A: This could be caused by losing connection to Solar-WiFi *:
1. Make sure you connected Solar-WiFi* (make sure no other devices connected) or router (if
connected Solar-WiFi* to router) and on App home page shows connection well.
2. Make sure you restart inverter 10mins after you change some settings because the inverter will
save settings every 10 mins under normal mode. We recommend you change setting parame-
ters when inverter is in wait mode.
Q: On the App, why are the data displayed on the homepage different from the Param
page, like charge/discharge, PV value, load value or grid value?
A: The data refresh frequency is different, so there will be a data inconformity between different
pages on App as well as between that on portal and App .
Q: On App, some columns show NA, like battery SOH, etc. Why does that happen?
A: NA means App does not receive data from inverter or server because of communication
problem, such as battery communication, and communication between inverter and the App.
About Smart Meter and Power Limit Function
Q: How to activate Output Power Limit function?
A: For BT system, the function could be realized by:
1. Make sure Smart Meter connection and communication are well.
2. Turn on Export Power Limit function and set the max output power to grid on App.
Note: Even if output power limit is set to 0W, there might still be a deviation of a max of
100W exporting to grid.
Q: Why is there still power exporting to grid after I set power limit as 0W?
A: Export limit could theoretically be 0W, but there will be a deviation of around 50-100W for BT
system.
Q: Can I use other brand Meter to take over Smart Meter in BT system or change some
settings on Smart Meter?
A: No, because the communication protocol is inset between inverter and Smart Meter, other
brand Meter cannot communicate. Also any manual setting change could cause Meter commu-
nication failure.
Q: What is the maximum current allowed going through CT on Smart Meter?
A: The max current for CT is 120A.
Other Questions
Q: Is there a quick way to make the system work?
A: The shortest way, please refer to "BT Quick Installation Instructions" and "PV Master App Instruc-
tion".
Q: What kind of load can i connect on back-up side?
A: Please refer to user manual on page 12.
Q: Will the warranty of the inverter still be valid if for some special conditions we cannot
100% follow the installation or operation instructions of the user manual?
A: Normally we can still provide technical support to problems caused b disobeying the instruc-
tion on the user manual, but we cannot guarantee a replacement or returns. So if there is any
special conditions where you cannot 100% follow the instructions, please contact after-sales.
26
25

4.3 Disclaimer
The BT series inverters are transported, used and operated under environmental and electrical
conditions. Manufacturer has the right not to provide after-sales services or assistance under
following conditions:
• Inverter is damaged during transfer.
• Inverter's warranty has expired and extended warranty is not bought.
• Inverter is installed, refitted or operated in improper ways without authorisation from manufac-
turer.
• Inverter is installed or used under improper environment or technical condition mentioned in
this user manual, without authorisation from manufacturer.
• Installation or configuration of the inverter does not follow requirements mentioned in this user
manual.
• The inverter is installed or operated against the requirements or warnings that are mentioned in
this user manual.
• Inverter is broken or damaged by any force majeure like lightening, earthquake, fire hazard,
storm and volcanic eruption etc.
• Inverter is disassembled, changed or updated on software or hardware without authorisation
from manufacturer.
• Inverter is installed, used or operated against any related items in international or local policies
or regulations.
• Any non-compatible batteries, loads or other devices connected to BT system.
Note: Manufacturer will keep the right to explain all the contents in this user manual. To
insure IP66, inverter must be sealed well, please install the inverters within one
day after unpacking, otherwise please seal all unused terminals / holes, unused
terminals / holes are not allowed to be kept open, confirm that there is no risk of
water or dust entering the terminals / holes.
Maintenance
The inverter requires periodical maintenance, details as shown below:
• Make sure inverter is totally isolated from all DC and AC power for at least 5 mins before mainte-
nance.
• Heat sink: Please use clean towel to clean up heat sink once a year.
• Torque: Please use torque wrench to tighten AC and DC wiring connection once a year.
• DC breaker: Check DC breaker regularly, active the DC breaker 10 times in a row once a year.
• Operating DC breaker will clean contacts and extend lifespan of DC breaker.
• Water-proof covers: Check if water-proof covers of RS485 and other part are replaced once a year.
GW5K-BT
5000
5500
10000
8.5
15.2
5000
10000, 60sec
8.5
GW6K-BT
6000
6600
12000
10.5
18.2
6000
12000, 60sec
10.5
GW8K-BT
8000
8800
15000
13.5
22.7
8000
15000, 60sec
13.5
GW10K-BT
10000
11000
15000
16.5
22.7
10000
15000, 60sec
16.5
Li-Ion
180~600
25
25
Self-Adaption To BMS
400/380, 3L/N/PE
50/60
~1 (Adjustable from 0.8 leading to 0.8 lagging)
<3%
400/380
50/60
<3%
97.6%
97.6%
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Integrated
Technical Data
Battery Input Data
Battery Type
Battery Voltage Range (V)
Max. Charging Current (A)
Max. Discharging Current (A)
Charging Strategy For Li-Ion Battery
AC Output Data (On-Grid)
Nominal Apparent Power Output to Utility Grid (VA)
Max. Apparent Power Output to Utility Grid (VA) [1]
Max. Apparent Power from Utility Grid (VA)
Nominal Output Voltage (V)
Nominal Output frequency (Hz)
Max. AC Current Output to Utility Grid (A)
Max. AC Current From Utility Grid (A)
Output Power Factor
Output THDi (@Nominal Output)
AC Output Data (Back-Up)
Max. Output Apparent Power (VA)
Peak Output Apparent Power (VA) [2]
Max. Output Current (A)
Nominal Output Voltage (V)
Nominal Output Frequency (Hz)
Output THDv (@Linear Load)
Efficiency
Max. Battery To Load Efficiency
Max. Charge Efficiency
Protection
Anti-Islanding Protection
Insulation Resistor Detection
Residual Current Monitoring Unit
Output Over Current Protection
Output Short Protection
Battery Input Reverse Polarity Protection
Output Over Voltage Protection
4.4 Technical Parameters
28
27

Category I
Category II
Category III
Category IV
Applies to equipment connected to a circuit where measures have been
taken to reduce transient overvoltage to a low level.
Applies to equipment not permanently connected to the installation.
Examples are appliances, portables tools and other plug-connected
equipment.
Applies to a fixed equipment downstream, including the main distribution
board. Examples are switchgear and other euiquipment in an industrial
installation.
Applies to equipment permanently connected at the origin of an installa-
tion (upstream of the main distribution board). Examples are electricity
meters, primary over-current protection equipment and other equipment
connected directly to outdoor open lines.
4.5 Other Test
For Australian requirements, in the THDi test, Zref should be added between inverter and mains.
RA, XA for Line conduvtor
RN, XN for Neutral conductor
Zref:
RA=0, 24; XA=j0,15 at 50Hz;
RN=0, 16; XN=j0,10 at 50Hz
4.6 Quick Check List To Avoid Danger
1. Inverter cannot be installed near flammable, explosive or strong electro-magnetic equipment,
please refer to page 06
2. Remember that this inverter is heavy! Please be careful when lifting out from the package,
please refer to page 07
3. Make sure battery breaker is off and battery nominal voltage meets BT specification before
connecting battery to inverter and make sure inverter is totally isolated from AC power, please
refer to page 10
4. Make sure inverter is totally isolated from any DC or AC power before connecting AC cable,
please refer to page 11
5. Make sure AC cable is totally isolated from AC power before connecting Smart Meter & CT,
please refer to page 14
Appendix protection category defintion
Overvoltage category definition
[1] According to the local grid regulation
[2] Can be reached only if battery capacity is enough, otherwise will shut down.
[3] No back-up output
GW5K-BT GW6K-BT GW8K-BT GW10K-BT
-35~60
0~95%
≤4000
Nature Convection
<30
LED & APP
RS485; CAN
RS485
RS485 (Insulated)
Wi-Fi;LAN
21
516*415*180
Wall Bracket
IP66
<15
Transformerless
CEI 0-21; VDE-AR-N 4105; G98, G99, G100; EN 50549
IEC/EN 62477
EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4,
EN61000-4-16, EN61000-4-18, EN61000-4-29
Technical Data
General Data
Operating Temperature Range (℃)
Relative Humidity
Operating Altitude (m）
Cooling
Noise (dB)
User Interface
Communication With BMS
Communication With Meter
Communication With EMS
Communication With Portal
Weight (kg)
Size (Width*Height*Depth mm）
Mounting
Protection Degree
Standby Self Consumption (W) [3]
Topology
Certifications & Standards
Grid Regulation
Safety Regulation
EMC
30
29

Environment category definition
Level
3K3
0~+40℃
5%~85%
4K3
-33~+40℃
15%~100%
4K4H
~20~+55℃
4%~100%
Environment Condition
Outdoor
Indoor Unconditioned
Indoor conditioned
Ambient Termperature
-20~50℃
-20~50℃
0~40℃
Relative Humidity
4%~100%
5%~95%
5%~85%
Applied to
PD3
PD3
PD2
No pollution or only dry, non-conductive polllution occurs.
The pollution has no influence.
Normally only non-conductive pollution occurs. Occasionally,
however, a temporary conductivity caused by condensation
must be expected.
Conductive pollution occurs, or dry. non-conductive pollution
occurs, which becomes conductive due to condensation,
which is expected.
Persistent conductive pollution occurs, for example, the
pollution caused by conductive dust, rain or snow.
Moisture location category definition
Pollution degree definition
Pollution Degree I
Pollution Degree II
Pollution Degree III
Pollution Degree IV
Moisture Parameters
Temperature Range
Moisture Parameters
31