Goodwe ET Series User manual

ET SERIES USER MANUAL
Hybrid inverter

1. INTRODUCTION
The GoodWe ET inverter series, also known as hybrid or bidireconal solar inverters, are designed to
manage energy in solar systems that use PV, baeries, loads, and grid systems. With the help of these
inverters, the energy generated by PV systems can be opmized for household loads. Any excess
energy is stored in the baery, and once the baery is fully charged, the excess energy is exported to
the grid if it is allowed. If the PV panels are not producing and the baery is charged, the energy for
consumpon in the house is supplied from the baery. Aer the baery is discharged, the energy is
supplied from the distribuon network to meet the household energy requirements.
Note:
The introducon describes the general operaon condions of an
ET system. The operang mode can be adjusted in the PV Master
App including the system layout. The general operang modes for
the ET system are shown below:
1.1 Introducon to operang modes
The operang mode of the ET series inverter can be set according to the required condions.
Below are examples of the inverter's basic operang modes.
Mode I
When PV is produced, consumpon in the house is
supported rst. Excess energy is stored in the
baery, aer the baery is charged the excess
energy goes to the grid. (If the inverter is enabled
for surplus to the grid)
Mode 2
When the PV is not produced, the energy for
consumpon in the house is supplied from the
baery, and in case of higher consumpon, from
the grid
Mode 3
In the event of a distribuon network failure, only the
„Back-Up“ output (backed-up appliances) will remain
acve. This output is powered by PV and baery.
Mode 4
Baery charging and discharging can be set using a
schedule. These me schedules are set up using the
PV Master app.

1.2 SAFETY AND WARNINGS
The ET inverter series from Jiangsu GoodWe Power Supply Technology Co., Ltd. (also called
GoodWe) strictly complies with related safety rules for product design and tesng. Please read
and follow all of the instrucons and cauons appearing on the inverter or in the User Manual
during installaon, operaon, and maintenance, as any improper operaon might cause personal
injury or property damage.
Symbol explanaon
Caution!
Failure to observe any warnings contained in this manual may result in injury.
The danger of an electric shock!
Danger - hot surface!
The components of the product can be recycled.
This side up! This package must always be transported, handled and stored in
such a way that the arrows always point upwards.
No more than six identical packages are to be stacked on top of each other.
The product shall not be disposed of as household waste.
The package/product must be handled carefully and should never be tipped
over or slung.
Refer to the operating instructions.
Keep dry! The package must be protected from excessive humidity and must be
stored under cover.
This symbol indicates that you should wait at least 5 minutes after disconnecting
the inverter from the utility grid and from the PV panel before touching any
inner parts.
CE mark

Safety warnings
Any installation or operations on the inverter must be performed by qualified electricians in compliance with
standards, wiring rules, and the requirements of local grid authorities or companies (such as AS 4777 and
AS/NZS 3000 in Australia).
Never insert or remove the AC or DC connecons when the inverter is running.
Before any manipulaon in the inverter connecon area, it is necessary to turn o all power from the DC and
AC sides. Aer that, you must wait 5 minutes before starng work with the inverter.
The temperature of the inverter surface can exceed 60°C during operaon. 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 cover or change any components without the manufacturer's authorizaon.
Otherwise, the warranty for the inverter will be invalid.
The usage and operaon of the inverter must follow the instrucons in this User Manual. Otherwise, the
protecon design might be impaired and the warranty for the inverter will be invalid.
Appropriate methods must be adopted to protect the inverter from stac electricity damage. Any damage
caused by stac electricity is not warranted by the manufacturer.
The negave (PV-) input of the inverter is not grounded. It is prohibited to connect the PV- or BAT- inputs to
the ground.
PV panels shall comply with class A according to IEC61730. The total idle voltage of the string, must not exceed
the permied maximum DC input voltage of the inverter. Exceeding the maximum permied DC voltage will
cause the changer to be destroyed and the warranty to be lost.
When exposed to sunlight, the PV array generates dangerous high DC voltages. Please operate the inverter
according to these instrucons, or danger to life may result.
The inverter has a built-in RCMU protector that monitors leakage currents on the DC side up to 6mA, when
using an external protector, use an RCD/A type protector
In Australia, the output of the backup side in the switch box should be labeled "Main Switch UPS Supply". The
output on the normal load side in the switch box should be labeled "Main Switch Inverter Supply".

1.3 Inverter Overview
LED INDICATORS
INDICATOR
STATUS
EXPLANATION
SYSTEM
ON = system is ready
BLINK = system is starng up
OFF = system is not operang
BACKUP
ON = backup is ready/power available
OFF = backup is o/on power available
BATTERY
ON = baery is charging
BLINK 1 = baery discharging
BLINK 2 = baery is low/soc is low
OFF = baery is disconnected/not acve
GRID
ON = the grid is acve
BLINK= the grid is acve but is not connected
OFF = the grid is not acve
ENERGY
ON = consuming energy from the grid/purchasing
BLINK 1 = supplying energy from the grid/zeroing
BLINK 2 = supplying energy to the grid/selling
OFF = the grid is not connected or the system is not operang
COM
ON = BMS and meter communicaons are OK
BLINK 1 = meter communicaons are OK, BMS communicaons
have failed
BLINK 2 = BMS communicaons are OK, meter communicaons
have failed
OFF = BMS and meter communicaons have both failed
WI-FI
ON = WiFi is connected/acve
BLINK 1 = wi is reseng
BLINK 2 = wi is not connected to the router
BLINK 4 = wi server problem
OFF = wi is not acve
FAULT
ON = A fault has occurred
BLINK 1 = overload of backup output/reduce load
BLINK 4 = CT wiring fault
OFF = no fault

Wi-Fi reset
LED control lights
DC switch*
Wi-Fi module
Baery connecon
connectors
On-Grid port
Back Up port
For smart meter
Communicaon cable for Smart meter
For baery
Communicaon cable for BMS conneco
PV connecon
connectors **
Note
* : Only GW 5K/8K/10K-ET have DC switch
**: Only GW8KLC and GW10KL-ET has two pairs of connectors on PV2 output

2. INSTALLATION
2.1 Installaons that are not allowed
Please avoid the following installaon types, which will damage the system or the inverter.
2.2 PACKAGE CONTENTS
When receiving the inverter, check that the components shown below are not missing or damaged.
Load
DO NOT CONNECT IN PARALLEL
PV
PV
DO NOT CONNECT ONE STRING TO TWO OR MORE INVERTERS
DO NOT CONNECT ONE SMART METER TO MORE INVERTERS AND DO
NOT CONNECT VARIOUS MEASURING RINGS ON THE CABLE
BATTERY
BATTERY
DO NOT CONNECT ONE BATTERY TO MORE INVERTERS
GENERATOR
INCOMPATIBLE
BATTERY
DO NOT CONNECT THE BACK-UP OUTPUT TO
THE GRID
DO NOT CONNECT THE AC GENERATOR TO THE
ON-GRID INPUT OR BACK-UP OUTPUT
DO NOT CONNECT INCOMPATIBLE BATTERIES TO
THE INVERTER’S BATTERY OUTPUT
Inverter
Wall holder
Smart Meter with
three CT
Posive PV
connector 2 or 3pcs
Negave PV
connector 2 or 3pcs
Posive BAT
connector
Negave BAT
connector
PE terminal
4x dowels with
screws
AC port cover
6x screw with a
at head
12x pin
terminal
User manual
Quick user manual

2.3 MOUNTING
2.3.1 Select mounng locaon
For inverter protecon and convenient maintenance, the mounng locaon for the inverter should
be selected carefully based on the following rules:
No part of the system should not block the switch or breaker from disconnecng the inverter from
DC and AC power.
Rule 1. The inverter should be installed on a solid surface that is suitable for the inverter's
dimensions and weight.
Rule 2. The inverter should be installed vercally or on a slope with a maximum value of 15°.
Rule 3. The ambient temperature should be lower than 45°C. 06
Rule 4. The inverter installation should be protected by shelter from direct sunlight or bad weather
such as snow, rain, lightning, etc.
Rule 5. The inverter should be installed at eye level.
Rule 6. The product label on the inverter should be visible after installation.
Rule 7. Leave enough space around the inverter according to the figure below.
Do not install the inverter near ammable or explosive substances or near equipment with a strong
electric magnec eld. [1]
Keep away from
sunlight
Keep away from
rain
Keep away from
snow
Direct sunlight
Rain
Snow
Picture 2

2.3.2 MOUNTING
REMEMBER THE INVERTER IS HEAVY! BE CAREFUL WHEN REMOVING IT FROM THE BOX.[2]
The inverter is suitable for mounting on concrete or other non-combustible surfaces only.
Step 1
-Please use the mounng bracket as a template to drill 6 holes in the correct
posions (10mm in diameter and 80mm in depth). (picture 4)
-Use the expansion bolts in the accessory box and ghtly aach the mounng
bracket to the wall.
Note: The load capacity of the wall must be greater than 25kg. Otherwise, the wall
may not be able to prevent the inverter from dropping.
Step 2
Grasp the inverter on both sides of the cooler and place the inverter
on the wall bracket. (picture 5).
NOTE: Make sure the inverter is properly seated on the wall
bracket.
Step 3
Aach the grounding wire to the grounding point of the inverter.
Step 4
The inverter can be locked. (the lock is not part of the package).
Wall holder
Dowel
Screw

2.4 WIRING
2.4.1 PV CONNECTION
Before connecng the PV panels/strings to the changer, check the following points:
•The total shortcircuit current of the panels is no higher than the max input DC of the
inverter. (for GW8KL-ET and GW10KL-ET, the PV2 has two pairs of connectors, allowing
two strings to be connected with a total short circuit current not exceeding 22A).
•The insulaon resistance of the PV panels against the ground must be more than 33.33k,
otherwise, there is a risk of electric shock.
•The PV string should not be aached to the ground.
•Use the aached connectors to connect the PV strings. (THE BAT connector is similar to
the PV connector, check the connectors thoroughly before connecng)
NOTE: Accessories include either MC4 or QC4.10 connectors or Amphenol, the detailed connecon is shown
below.
Step 1
Note:
-Use the PV connectors included in the package
-Use a PV cable with a cross-secon of 2.5-4 mm2
Step 2
Connect the PV cable with the PV connector
Note:
-The PV cable must be ghtly pressed with the connector
-For the Amphenol connector, use a liming clip, it must not be pressed. There must be a click when
the connector is assembled
Step 3
Pull the cap onto the connector
Note:
-You should hear a click when the connector is inserted
The polarity of the PV input must not be reversed, otherwise, there is a risk of destroying the inverter [3]
For GW8KL-ET and GW10KL-ET, if the PV array you connect to the PV2 input has a short-circuit current
higher than 15A, divide the PV array into two strings and connect two pairs of connectors to the PV2
input.

2.4.2 BATTERY CONNECTION
-Take care not to cause electric shock or chemical hazards
-Plug in the DC circuit breaker (≥ 40A) between the baery and the inverter.
Make sure your baeries are switched o before connecng and the ET series is disconnected from
the FV and AC sides[4].
Follow strictly the instrucons below.
Using the wrong conductor can result in poor contact and high impedance, which is dangerous for the
system.
- Use the correct BAT connector from the accessories.
-Use nned cables with a 4 to 6 mm2 (AWG 10) cross-secon, as the maximum baery current is 25A.
Adjust the cable to connect the baery according to the picture below
Connect the baery according to the following steps:
Step 1
Using a screwdriver, open the clip
Step 2
Carefully insert the stripped and twisted wire into the
connector (A). The end of the wire must be visible
under the clip. Snap the clip. Make sure the clip holds
the cable (B).
Step 3
Insert the insert into the connector (C).
Tighten the cap with 2 Nm (D).
Use a suitable and calibrated size 15 torque wrench
and hold the connector open with a size 16 wrench
while ghtening.
Step 4
A click should be heard when the connector is inserted.
Aer clicking, check that the connectors really hold.
* To install compable lithium baeries (Pylon/BYD), read the ET QUICK INSTALLATION MANUAL.
Marking
Descripon
Value
A
Outer diameter
5.5-8.0 mm
B
Conductor cross-secon
4-6 mm2
C
Stripped wire length
15 mm

2.4.3 ON-GRID AND BACK-UP CONNECTION
Install a separate AC breaker (≥ 32A) for the inverter, which is required to protect the On-
Grid input of the inverter. Recommended circuit breakers are shown below:
Inverter model
AC breaker specicaon
GW5KL/6KL-ET
24A/400V (e.g. DZ47-60 C25)
GW8KL/10KL-ET
32A/400V (e.g. DZ47-60 C32)
GW5K-ET
25A/400V (e.g. DZ47-60 C25)
GW8K/10K-ET
32A/400V (e.g. DZ47-60 C32)
Note:
The absence of an AC breaker on the Back-Up output can cause the inverter to be
destroyed in the event of a short circuit.
Use single breakers
On the AC side, there should be an AC breaker
located between the inverter and the appliances.
Before connecng, make sure that the inverter and cables are disconnected from the DC and AC
side [5].
NOTE:
1. The neutral wire must be blue, the phase black or brown, and the protecve wire green-yellow.
2. For AC cable, PE wire must be longer than L and N wire. This is to maintain protecon in the event of a cable
being pulled out.
Step 1
Prepare the cable according to the picture
Step 2
Pass the AC cable through the terminal block cover in the order shown in the picture
Note: Use only the original cover from the GoodWe brand
Marking
Descripon
Value
A
Outer diameter
13-18 mm
B
Length of the insulated wire
20-25 mm
C
Length of the stripped wire
7-9 mm
D
Conductor cross-secon
4-6 mm 2
AC breaker
AC breaker
AC breaker
AC breaker
Grid
Load
Cables
Screw
cap
Rubber ring
Insulator
Baery
case

Step 3
Firmly crimp the 10 pin terminals on the ends of the cables
Note: Make sure there is no crimped insulaon in the pin terminals
Step 4
Tightening torque 2.0-2.5N .m
Connecng the AC cable to the terminal block with a ghtening torque of 2.0-2.5N.m
Note: Connect the Backup terminal block rst
Make sure you have everything wired up correctly
Screw the cover (see the picture above)

Special sengs
The inverter has adjustable funcons such as shutdown point, shutdown me, reconnecon me, acve and
invalid QU/PU curves, etc. These features can be set up using special soware. Contact the GoodWe retailer if
you want to set up these funcons.
Back-up output
The hybrid ET series inverter can handle backup output congeson for a certain amount of me. For more
details, see the technical parameters of the inverter (Chapter 4.3) The inverter also has protecon against
exceeding its maximum temperature
Allowed appliances connected to the Back-Up output:
•Inducve appliances: 1.5P climate control without frequency changer. Connecng two or more of these
air-condioning units can cause back-up output instability.
•Capacive appliances: Total power <= 0.6 x rated power of the model.
•Note: Do not connect a 3-phase inducve load (engine) without zero conductor (no appliances allowed
that have a high shock current at startup)
•To plug in complex devices, consult GoodWe technical support.
Note:
For convenient maintenance, install a 3-phase switch on the Backup outlet and mains. By switching, you can
conveniently power the BackUp output during inverter maintenance (see the picture below)
Back-Up output overload protecon:
The inverter restarts during overload and during repeated overloads the restart me aer restart is extended
and during repeated overloads, the inverter restart me can be extended up to one hour. To reset the overload
follow these steps:
•Reduce the connected power that is on the Back-Up output
•In the PV Master app, in "Advanced Seng" click on "Reset Back-Up Overload History"
1 : The appliances are supplied from the Back-Up side
2 : The appliances are without energy
3 : Appliances are supplied from the distribuon
network

2.4.4 SMART METER AND CT
Make sure you have everything voltage-free before connecng the smart meter and CT [6]
The measuring module Smart Meter with CT is included in the package and must be connected to the ET
inverter. The measuring module detects the direcon and magnitude of power and current and controls the
operaon of the inverter via RS485 communicaon.
NOTE:
1. Smart Meter and CT are pre-set, do not change any sengs on Smart Meter;
2. One Smart Meter and CT can only be used for one ET inverter;
3. Three CTs must be connected to one Smart Meter and must be connected to the same phase to which the
Smart Meter is connected.
Smart Meter and CT connecon
NOTE:
1. Use the Smart Meter and 3x CT that comes with the inverter;
2. CT cable is 3m long, and can be extended to max. 5m;
3. The communicaon cable for the Smart Meter (RJ45) is connected to the inverter ("To Smart Meter" cable),
this cable can be extended to a maximum of 100m, and the data cable and RJ45 plug must be used as shown
below:
LED indicaon of the Smart Meter
Does not shine
Shines
Flickers
Power
Turned o
Turned on
/
Energy
/
Takes
Gives
COM
Flickers when there’s communicaon going on
PIN
Color
BMS funcon
Smart Meter funcon
RS485
1
Orange-white
485_A2
NC
485_A
2
Orange
NC
NC
485_B
3
Green-white
485_B2
485_B1
485_A
4
Blue
CAN_H
NC
NC
5
Blue-white
CAN_L
NC
NC
6
Green
NC
485_A1
485_B
7
Brown-white
NC
485_B1
NC
8
Brown
NC
485_A1
NC
To Smart Meter
Appliances
Power meter
Grid
CT A is connected to L1
CT B is connected to L2
CT C is connected to L3

2.5 DRED AND FAULT IN THE GROUND CONNECTION
2.5.1 DRED CONNECTION
The DRED connecon is only used in Australia and New Zealand. DRED equipment is not provided
by GoodWe. GoodWe series ET changers comply with IEC 62109-213.9. The fault indicator
("FAULT") is located on the changer's taskbar and lights up in red in the event of a malfuncon.
The changer then sends the customer informaon about the malfuncon.
The wiring diagram for the DRED device is shown below:
Step 1
Unscrew the cover from the inverter (see the picture).
Note: The DRED device should be connected via the "DRED port" as shown in
the picture.
Step 2
1. Disconnect the 6-pin connector and disconnect the resistor from it (Fig. 24). CT C is
connected to L3
2. Pull out the resistor and proceed according to the next step. Note: The 6-pin
resistor connector has its funcon in the inverter if you do not have any DRED devices
connected. Please leave this connector plugged into the inverter.
Step 3
1. Push the DRED cable through the cap, see the picture.
2. Connect the DRED cable to the 6-pin connector.
The funcon of each pin is shown below:
PIN
1
2
3
4
5
6
Funcon
DRM1/5
DRM2/6
DRM3/7
DRM4/8
REFGEN
COM/DRMO
Step 4
Connect the connector to the inverter
2.5.2 GROUND CONNECTION INDICATION
The GoodWe ET series inverters comply with the IEC 62109-213.9 standard. The fault indicator
("FAULT") is located on the main panel of the inverter and lights up red in the event of a fault.
Aer that, the inverter sends informaon about the fault to the customer.
Cable
Cap
Rubber
ring
RS485
cap
Screw
Insulator
Nut

Connecon diagram of the hybrid ET series inverter
Note: The scheme does not portray a general connecon to the ET series inverter according to the standards.
Choose a circuit breaker according to the specicaons
1
2
3
4
5
GW5KL/6KL-ET
40A/600V DC
breaker
25A/400V AC breaker
Depending
on the
household
consumpon
GW8KL/10KL-ET
32A/400V AC breaker
GW5K-ET
25A/400V AC breaker
GW8K/10K-ET
32A/400V AC breaker
1. For baeries with their circuit breaker, there is no need to install an external circuit breaker.
2. Connect CT A to L1, CT B to L2, CT C to L3. and observe the direcons CT „House (K)- Grid (L)".
Otherwise, the device will not work properly.
PV strings
Baery
1-phase
appliances
3-phase
appliances
DC breaker
AC breaker
AC breaker
AC breaker
To the baery
To the Smart Meter
Power meter
AC breaker
Appliances
Grid

Wiring scheme
NOTE: According to the Australian Safety Standard, the neutral wire from the mains side and the
backup side must be connected, otherwise the Backup funcon will not work
Wiring example for
Australia and New Zealand
Baery
PV
panels
Grid
Appliances
GoodWe ET
Series
Hybrid inverter
Main switchboard
Backed-up appliances
The grouding screw is placed in the
right lower part
Do not connect this clamp in
Australia and New Zealand!!!
Wiring example for
standard grid systems
Baery
PV
panels
GoodWe ET
Series
Hybrid inverter
The grouding screw is placed in the
right lower part
Main switchboard
Backed-up appliances
Grid
Appliances
Backed-up appliances
Baery
PV
panels
GoodWe ET
Series
Hybrid inverter
The grouding screw is placed in the
right lower part
Wiring example for island systems

3. CONNECTION
3.1 WI-FI CONFIGURATION
This part shows the conguraon using a web page.
Wi-Fi conguraon is necessary for online monitoring and maintenance.
Preparaon:
1. We switch the inverter on only to PV.
2. A router with internet access to the website www.semsportal.com is required.
Step 1
1. Connect to Solar-Wi-Fi* via your PC or smart
phone (* its name is the last 8 characters of
the inverter's serial number);
2. Open your browser and login to
10.10.100.253 or 10.10.100.254¨
Admin (U): admin | Password: admin
3. Then click on the "OK" buon.
Step 2
1. Click on the "Start Setup" buon to select the
router (home WiFi). Then click the "Next"
buon.
Step 3
1. Fill in the router password and click "Next".
2. Click on the "Finish" buon.
NOTE:
1. Please make sure the password and encrypon method/algorithm are the same as those of the router.
2. If everything goes well, the Wi-Fi LED on the inverter will change from a double blink to 4 blinks and
then to a solid status, which means that the Wi-Fi has successfully connected to the server.
3. Wi-Fi conguraon can also be done on the PV Master App. For details, please check the PV Master
App.

Wi-Fi Reset and Reload
A Wi-Fi reset means restarng the Wi-Fi module without losing the saved sengs.
A Wi-Fi Reload means seng the Wi-Fi module to the default factory sengs.
Wi-FI Reset
Quickly press the reset buon. The Wi-Fi LED will blink for a few seconds.
Wi-Fi Reload
Perform a long press of the reset buon (longer than 3 seconds). The Wi-Fi LED will double-icker unl the Wi-
Fi is congured again.
Note: The Wi-Fi reset and reload functions are used only when:
1. Wi-Fi loses connection to the internet or cannot connect successfully to the PV Master app.
2. Cannot find the "Solar-Wi-Fi signal" or there are other Wi-Fi configuration problems.
3. Please do not use these buttons if Wi-Fi monitoring is working correctly.
3.2 PV MASTER APP
PV Master is an external monitoring/configuration app for hybrid inverters and is used
on smartphones or tablets for both Android and iOS operating systems. The main
functions are described below:
1. Edit the system configuration to make the system function as the customer
requires.
2. Monitor and check the performance of the hybrid system.
3. Wi-Fi configuration.
Please download the PV Master OPERATION INSTRUCTIONS from
www.goodwe.com
3.3 CEI FUNCTION AND AUTO-TEST
The PV auto-test function of CEI is integrated into the PV Master App to satisfy Italian safety
requirements. For detailed instructions regarding this function, please refer to "PV Master Operation
Instructions".
Wi-Fi reset buon