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