Goodwe EH Series User manual

User Manual
Hybrid Inverter
EH Series
V1.3-2021-12-15

Content User Manual V1.3-2021-12-15
2
TABLE OF CONTENTS
01 Introduction ..............................................................1
1.1 Operation Modes Introduction................................................................1
1.2 Safety and Warning...................................................................................2
1.3 Product Overview ......................................................................................4
02 Installation Instructions .............................................5
2.1 Unacceptable Installations.......................................................................5
2.2 Packing List ................................................................................................6
2.3 Mounting....................................................................................................6
2.3.1 Select Mounting Location.................................................................................6
2.3.2 Mounting ............................................................................................................8
2.4 Electrical Wiring Connection ....................................................................8
2.4.1 PE Cable Connection ......................................................................................... 8
2.4.2 PV Wiring Connection .......................................................................................9
2.4.3 Battery Wiring Connection .............................................................................10
2.4.4 On-Grid&Back-up Connection........................................................................11
2.4.5 Smart Meter & CT Connections .....................................................................14
2.4.6 WiFi Module Connection.................................................................................16
2.5 Communication Connections.................................................................16
2.5.1 BMS Connection...............................................................................................16
2.5.2 Dred & Remote Shutdown Connection.........................................................16
2.6 Earth Fault Alarm Connection................................................................17
03 Manual Operation .................................................... 20
3.1 Wi-Fi Conguration .................................................................................20
3.2 PV Master .................................................................................................21
3.3 CEI Auto-Test Function............................................................................21
3.4 Startup/Shutdown Procedure................................................................22
3.5 SEMS Portal ..............................................................................................22

ContentUser Manual V1.3-2021-12-15
3
04 Others ..................................................................... 23
4.1 Error Messages........................................................................................23
4.2 Troubleshooting ......................................................................................25
4.3 Disclaimer.................................................................................................29
4.4 Technical Parameters ............................................................................31
4.5 Quick Checklist To Avoid Dangerous Conditions.................................35
4.6 Checking The Electrical Connection......................................................35
Appendix ..................................................................... 36

1
User Manual V1.3-2021-12-15 01 Introduction
1.1 Operation Modes Introduction
01 Introduction
The EH series, also called hybrid or bidirecational solar inverters, apply to solar system with
participation of PV, battery, loads and grid system for energy management. The energy produced
by PV system shall be used to optimize self-consumption, excess power charge battery and the
rest power could be exported to the grids. Battery shall discharge to support loads when PV
power is insucient to meet self-consumption. If both PV power and battery power is insucient,
the system will take power form grid to support loads.
In addition, the EH Series includes a Battery-Ready inverter that has no battery function until it
is activated. If your inverter is Battery-Ready and not activated now, you can ignore the following
battery-related content.
The preceding introduction describes the general operation
of the EH system. The operation mode can be changed
with the PV Master app based on the system layout. The
possible operation modes for the EH system are shown
below.
EH system normally has the following operation modes based on your conguration and layout
conditions.
Mode I
The energy produced by the PV system is used
to optimize self-consumption needs. The excess
energy is used to recharge the batteries, any
remaining excess is then exported to the grid.
Mode III
When grid fails , the system automatically
switches to Back-Up mode, the Back-Up load
could be supported by PV and battery.
Mode II
When there is no PV, and the battery is
sucient , It can supply the load with the
grid together.
Mode IV
Battery could be charged by grid, and
charge time/power could be set to various
options on the PV Master App.

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01 Introduction User Manual V1.3-2021-12-15
1.2 Safety and Warning
The EH series of inverters from Jiangsu Goodwe Power Supply Technology Co.,Ltd (also called
GoodWe) strictly complies with related safety rules for product design and testing. Please read
and follow all of the instructions and cautions appearing on the inverter or in the User Manual
during installation, operation and maintenance, as any improper operation might cause personal
injury or property damage.
Symbol Explanation
Danger - high voltage and electric shock!
Caution!
Failure to observe any warnings contained in this manual may result in injury.
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 (6) identical packages being stacked on each other.
Products shall not be disposed as household waste.
5min
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.
This symbol indicates that you should wait at least 5mins after disconnecting the inverter
from the utility grid and from the PV panel before touching any inner live parts.
CE mark.

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User Manual V1.3-2021-12-15 01 Introduction
Any installation or operations on the inverter must be performed by qualied 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).
Prohibit to insert or pull the AC and DC terminals when the inverter is running.
Before any wiring connection or electrical operation on inverter, all battery 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 working, so please make sure
it is cooled down before touching it, and make sure the inverter is untouchable for children
Do not open inverter cover or change any components without GoodWe’s authorization,
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 useless and warranty 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 GoodWe.
PV negative (PV-) and battery negative (BAT-) on inverter side is not grounded as default
design. Connecting PV- or BAT- to EARTH are strictly forbidden.
PV modules used on the inverter must have an IEC61730 class A rating, and the total open-
circuit voltage of PV string/array is lower than the maximum rated DC input voltage of the
inverter. Any damage caused by PV over-voltage is beyond warranty.
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 System connection diagrams for
Australia.
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 inverter supply’.
Safety Warnings

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01 Introduction User Manual V1.3-2021-12-15
1.3 Product Overview
If the inverter is not equipped with a DC switch, an external DC breaker shall be added. The
external DC breaker shall be AU/NZ certied; Complied to AS60947.3:2018; Be classied as DC-PV
2; With ratings and properties suitable for the intended application conditions such as outdoor,
exposed to sunshine, on non-combustible material surface.
1. DC Switch (DC
Isolator) 2. PV Input Terminal
(PV+/PV-) 3. Battery Terminal(BAT+/BAT-)
4.
Communication
Module Port (WiFi or
LAN)
5. BMS Communication
Port 6. METER Communication Port
7. Back-Up Port 8. On-Grid Port 9. DRED Communication Port
10. RS485
Communication Port 11. WiFi Reset 12. Indicators
13. PE Terminal 14. Heat Sink 15. Mounting Plate

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User Manual V1.3-2021-12-15 01 Introduction
LED Indicators
EXPLANATION
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 o / 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
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
BLINK 1 = Meter communication ok, BMS communication fail
BLINK 2 = BMS communication ok, meter communication fail
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
BLINK = Overload of back-up / Output / reduce load
OFF = No fault
OFF = Grid is not active
SYSTEM
INDICATOR COLOR STATUS
BACK-UP
BATTERY
GRID
ENERGY
COM
WiFi
FAULT
02 Installation Instructions
2.1 Unacceptable Installations
Please avoid the following installations which will damage the system or the Inverter.
The following installations should be avoided. Any damage caused will not be covered by the
warranty policy.
Inverters should not be installed in multiple phase combination.
Backup cannot connect in parallel. Single PV string cannot connect to multiple inverters.
PV PV
Backup Back-Up
Load

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02 Installation Instructions User Manual V1.3-2021-12-15
One meter cannot be connected to multiple inverters.
Dierent CTs cannot connect to the same line cable.
The on-Grid or backup side cannot
be connected to any AC generator
directly.
The inverter battery input must not be
connected to incompatible batteries.
The backup side cannot be connected
to the grid.
One battery bank cannot be connected to multiple
inverters.
2.2 Packing List
Upon receiving the hybrid inverter, please check if any of the components as shown below are
missing or broken. Of course, there are no Smart Meter and Smart Meter User Manual if you
buy a Battery-Ready inverter without the Smart Meter.
2.3 Mounting
2.3.1 Select Mounting Location
For inverter's protection and convenient maintenance, mounting location for inverter should be
selected carefully based on the following rules:
Rule 1. Any part of this system shouldn't block the switch and breaker from disconnecting the
inverter from DC and AC power.
Rule 2. Inverter should be installed on a solid surface, where it is suitable for inverter's dimensions
and weight.
Rule 3. Inverter should be installed vertically with a max rearward tilt of 15°.
On-Grid Battery Backup On-Grid Backup
Smart Meter
Battery
Incompatible battery
Generator
PE terminal Á 1 Expansion boltsÁ4
DocumentationÁ1 WiFi Module
and Remover x 1
Smart Meter
& CT Á 1
InverterÁ1 Wall-mounted
BracketÁ1
Back Up AC Plug X1 On Grid AC Plug X1
or
BAT
Connectors X 1
&&&
PV Connectors X 2

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User Manual V1.3-2021-12-15 02 Installation Instructions
Rule 4. Ambient temperature should be lower than 45°C (113°F). High ambient temperature will
cause power derating of inverter. The temperature and humidity at the installation site should be
within the appropriate range (60 °C for outdoor unconditioned with solar eects).
Rule 5. It is recommanded that the installation of the inverter should be prevented from direct
sunlight, snow, rain and other negative inuences which may cause function impact or life aging.
Accmulated snow
Keep away
from sunlight Keep dry Keep it clear
of snow Sun Rain
Rule 6. Inverter should be installed at eye level for convenient maintenance.
Rule 7. Product label on inverter should be clearly visible after installation. Do not damage the
lable.
Rule 8. Do not install the inverter when it is snowing or raining. If you have to, pay attention to
the waterproof and moisture-proof of the inverter and distribution box.
Rule 9. Leave enough space around the inverter according to the below gure for natural heat
dissipation.
Mounting Support Requirements
• The mounting support shall be nonammable and reproof.
• Make sure that the support surface is solid enough to bear the product weight load.
• Do not install the product on the support with poor sound insulation to avoid the noise
generated by the working product, which may annoy the residents nearby.
• Do not install the product near equipment with strong electromagnetism.
300mm
500mm
200mm 200mm
Upward
Downward
Front
Both sides
---------- 300mm
------ 500mm
------------- 300mm
-------- 200mm
300mm

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02 Installation Instructions User Manual V1.3-2021-12-15
3
The inverter is suitable for mounting on concrete or other non-combustible surfaces only.
Please use the mounting bracket as a template to drill 4
holes in the correct positions (e.g. 10mm in diameter and
80mm in depth).
Use the expansion bolts in the accessory box and tightly
attach the mounting bracket to the wall.
Note: Bearing capacity of the wall must be higher than
17kg, otherwise may not be able to keep inverter from
dropping.
wall bracketexpansion pipe
self-tapping screws
1
Carry the inverter by holding the heat
sink on two sides and Place the inverter
on the mounting bracket.
Note: Make sure the heat sink on inverter
is right joint with mounting bracket.
The inverters can be locked for anti-
theft purposes if this is necessary
for individual requirements.
The lock is not included in the
package and can be purchased by
the user.
1.2~2N·m
2
2.4 Electrical Wiring Connection
2.4.1 PE Cable Connection
2.3.2 Mounting
Remember that this inverter is heavy! Please be careful when lifting out from the
package.[3]

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User Manual V1.3-2021-12-15 02 Installation Instructions
2
MC4 /QC4.10 Series AMPHENOL Series
2.4.2 PV Wiring Connection
Before connecting PV panels/strings to the inverter, please make sure all requirements listed
below are followed:
• The total short- circuit current of PV string must not exceed inverter’s max DC current .
• The minimum impedance to earth of the PV module shall be greater than R. R=Max.Input
Voltage (V)/30mA, i.e. R=1100V/30mA=36.7KΩ or R=1000V/30mA=33.4KΩ.
• PV strings could not connect to earth/grounding conductor.
Use the right PV plugs in the accessory box
• (BAT plugs are similar with PV plugs, please confrm before use it.)
NOTE: There will be MC4 or Ampheno/ plugs in accessory box, the detailed connection as below:
Prepare the PV cables and PV plugs. Connect the PV cable to the PV
connectors.
Note:
1. Please use the PV plugs and connectors from the
accessory box.
2. The PV cable should be a standard 2.5–4mm2.
Note:
1. Crimp the PV cable tightly onto the connectors.
2. For Amphenol connectors, the limit buckle cannot be
pressed.
3. There will be a clicking sound if the connectors are
inserted correctly into the PV plugs.
2.5-4mm27mm
2.5-4mm27mm
1
• Disconnect the PE cable after dismantling the equipment if needed.
• To improve the corrosion resistance of the terminal, it is recommended to apply silica gel or
paint on the ground terminal after installing the PE cable.
• The PE cable should be prepared by customers. Recommended specications:
• Type: single-core outdoor copper cable.
• Conductor cross-sectional area S≥4mm2
L=L1+(1~2)mm L1
1
23
M5
1.2~2N·m
4
+: Positive polarity
-: Negative polarity

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02 Installation Instructions User Manual V1.3-2021-12-15
Screw the cap on and plug it into the inverter side.
Note: There will be a clicking sound if the connectors are
inserted correctly into the PV plugs.
The polarity of the PV strings must not be connected in a reverse manner. Otherwise, the
inverter could be damaged.
Make sure battery breaker is o and battery nominal voltage meet EH specication
before connecting battery to inverter and make sure inverter is totally isolated from PV
and AC power.
If your inverter is Battery-Ready, do not connect the battery to the inverter before activating the
battery function, otherwise it will stop working! Besides, do not remove the battery plug and
save the battery terminals, if lost, contact GOODWE for sale.
• Please be careful against any electric shock or chemical hazard.
• Make sure there is an external DC breaker (≥40A) connected for battery without build-in DC
• breaker.
2.4.3 Battery Wiring Connection
3
MC
MC
Please following Cments and steps bellow strictly. Use improper wire may cause bad contact
and high impedance, which is dangerous to the system.
• Use the right BAT plugs in the accessory box.
• Use the tin-plated cables with a conductor cross section of 4 to 6 mm² (AWG 10) because the
maximum battery current is 25A. Battery cable requirements are as following.
C
A
B
Figure 2.4.2-1
Grade Description Value
A Outside diameter 5.5-8.0 mm
B Conductor core section 4-6 mm2
C Conductor core length 15 mm
Battery wiring connection process

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User Manual V1.3-2021-12-15 02 Installation Instructions
D
C
Size 15
2 Nm
B
click!
A
BAT
1
4
2
3
Open the spring using a screwdriver. Carefully insert the stripped wire with
twisted litz wires all the way into (A). The
litz wire ends must be visible in the spring.
Close the spring. Make sure that the
spring is snapped into (B).
Insert the cable gland into the sleeve (C).
Tighten the cable gland to 2 Nm torque (D).
Use a suitable and calibrated torque wrench,
size 15. Use an open-jaw wrench, size 16, to
hold the connector in place.
Insert two BAT
connectors into
the inverter BAT
input. There will be
a clicking sound if
the connectors are
inserted correctly.
*For the compatible lithium batteries (Pylon/BYD ) connection, please refer to battery connection part
in www.goodwe.com.
2.4.4 On-Grid&Back-up Connection
An external AC breaker is needed for on-grid connection to isolate the inverter from the utility
grid when necessary.
The requirements for the on-grid AC breaker are shown below.
Conductor Core Section(Recommended)
Inverter Model AC Breaker Specication
GW3600-EH 50A/230V AC breaker
GW5000-EH 63A/230V AC breaker
GW6000-EH 63A/230V AC breaker
1. Use separate AC breakers for individual
inverters.
AC breaker AC breaker
AC breaker
AC breaker
Grid
Grid Load
2. On the AC side, an individual breaker
should be connected between the inverter
and grid but before any loads.

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02 Installation Instructions User Manual V1.3-2021-12-15
• Requirement of AC cable connected to On-Grid and Back-Up side.
Make sure the inverter is totally isolated from any DC or AC power before connecting the
AC cable.
Prepare the terminals and AC cables according to the correct table.
Note:
1. The choice of AC cable needs to meet both the outside diameter and conduct core section
requirements. Please refer to the table for selecting the AC cable.
2. Neutral cable shall be blue, line cable is black or brown (preferred) and protective earth cable yellow-
green.
3. For AC cables, PE cable shall be longer than N&L cables, so that if in any case AC cable slips or taken
out, the protecting earth conductor will be the last to take the strain.
ABC
D
1
Grade Description Value
A Outside diameter 13-22 mm
B Separated wire length 10-15 mm
C Conductor wire length 12-14mm
D Conductor core section 8-10mm2
Grade Description Value
A Outside diameter 13-22 mm
B Separated wire length 10-15 mm
C Conductor wire length 12-14mm
D Conductor core section 8-10mm2
• On-Grid wiring connection process is as below.
• Back-Up wiring connection process is as below.
23
4
1. Prepare the terminals and AC
cables.
2. Put AC cable through terminal cover
and screw the three cables tightly on
the connectors.
Lock terminal cover and screw up the
terminal cap.
Connect the assambled AC terminals onto
inverter.
Make sure terminal cover
is locked up here.
NOTE:
1. Please use the terminals in GoodWe
components box;
2. Make sure cable jacket is not locked with
conductor.
Note: Make sure the terminal cover is rightly locked
onto the terminal.
Note: Make sure it is connected to
'On-Grid' side (other side connected
to public grid).
ABC
D
1

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User Manual V1.3-2021-12-15 02 Installation Instructions
Note: The absence of AC breaker on Back-Up side will lead to inverter damage if only electrical short-
circuit happened on Back-Up side. And Back-Up function cannot turn o under On-Grid condition.
An external AC breaker (≥32A) is needed for Back-Up connection to be isolate when necessary.
1. Prepare the terminals and AC cables.
2. Put AC cable through terminal cover and screw
the three cables tightly on the connectors.
NOTE:
I. Please use the terminals in GoodWe components box;
2 Make sure cable jacket is not locked with conductor. Torque 0.7~0.9N.m
2
34
Lock terminal cover and screw up the
terminal cap.
Connect the assambled AC terminals
onto inverter.
Make sure terminal cover
is locked up here.
Press the button and
hold it to unlock when
unplugging AC terminals.
Note: Make sure the terminal cover is rightly
locked onto the terminal.
Note: Make sure it is connected to 'Back-Up' side
(other side connected to public grid).
Special Adjustable Setting
The inverter has led adjustable setting like tripping point, tripping time, reconnect time, active
and invalid of QU/PU curves etc. by special rmware. Please contact GoodWe after sales for the
special rmware and adjust methods.
Connection For SPLIT Grid System
In SPLIT grid system, there is a solution allowing
inverter to work under On-Grid condition. But
the export power and load power might be
detected inaccurately as the nominal output
power of inverter is 230V and there could be
loads of 110V or 220V.
Declaration For Back-Up Function
The below statement lays out GoodWe general policies governing the energy storage inverters
of the series ES, EM, SBP, ET, EH and BH.
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 case of systems not
connected to the batteries, the Back-Up function is strongly not advised to use. GoodWe 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:
1) Do not connect loads if they are dependent on a stable energy supply for a reliable operation
Back-Up Load(230V)
To Smart Meter
110V Load
220V Load
Grid Side

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02 Installation Instructions User Manual V1.3-2021-12-15
Note:
For a convenient maintenance, an DP3T support could be installed on Back-Up and On-Grid side. Then it
is adjustable to support load by Back-Up or by grid or just leave it there.
1. The backup load is supplied from backup side.
2. The backup load is isolated.
3. The backup load is supplied from grid side.
Declarations for backup overload protection
The inverter will restart itself if overload protection is triggered. The preparation time for
restarting will be increasingly long (one hour at most) if an overload recurs. Take the following
steps to immediately restart the inverter.
• Decrease the backup load power to within the maximum limitation.
• On The PV Master App > Advanced Settings > Click "Reset Backup Overload History".
2.4.5 Smart Meter & CT Connections
Make sure the AC cable is totally isolated from AC power before connecting the Smart
Meter and CT.
Note:
1. The Smart Meter with CT is already congured ; please do not change any settings on the Smart
Meter.
2. One Smart Meter can be used with only one EH inverter.
3. CT must be connected on the same direction as the CT indicated.
2) Do not connect the loads which may in total exceed the maximum Back-Up capacity
3) Try to avoid those loads which may create very high start-up current surges such as Inverter
Air-conditioner, high-power pump etc.
4) Due to the condition of battery itself, battery current might be limited by some factors
including but not limited to the temperature, weather etc.
Declaration For Back-Up Loads
EH series hybrid inverters are able to supply over load output at its’ Back-Up. For details please
refer to the technical parameters of EH series inverter (4.3 section). And the inverter has self-
protection derating at high ambient temperature.
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 unstable.
• Capacitive Load: Total power <= 0.6 x nominal power of model. (Any load with high inrush
current at start-up is not accepted.)
• For complicated application, please contact GoodWe's after service.
If you buy a Battery-Ready inverter without the Smart Meter, it is not necessary to view this
section.
The Smart Meter with CT in GoodWe product box is compulsory for EH system installation, used
to detect grid voltage and current direction and magnitude, further to instruct the operation
condition of EH inverter via RS485 communication.For more detailed information of the Smart
Meter, refer to the Smart Meter user manual in https://en.goodwe.com.
Back-up

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User Manual V1.3-2021-12-15 02 Installation Instructions
Grid Side
NOTE:
1. Please use the Smart Meter with CT in GoodWe product box.
2.CT cable is 3m as default, could be extended to max 5m.
3. Smart Meter communication cable (RJ45) is attached on the inverter ("To Smart Meter " cable), could
be extended to max 100m, and must use standard RJ45 cable and plug, as below:
Smart Meter & CT connection diagram
To Smart
Meter
Grid
Load
Position Color BMS
Function
Smart Meter
Function
EMS
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
8Brown NC 485_A1 NC
Smart Meter LED indications
STATUS OFF ON Blinking
POWER Not working Working /
ENERGY / Importing Exporting
COM Single blink when data are transferred to the inverter
POWER
ENERGY
COM
GoodWe
GM1000

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02 Installation Instructions User Manual V1.3-2021-12-15
2.4.6 WiFi Module Connection
2.5 Communication Connections
2.5.2 Dred & Remote Shutdown Connection
2.5.1 BMS Connection
DRED is used for Australia and New Zealand installation (also used as remote shutdown function
in European countries), in compliance with Australia and New Zealand safety requirements( or
European countries). And DRED device is not provided by GoodWe.
Detailed connection of DRED device is shown below:
BMS is used to communicate with the connected compatible lithium battery.
There is a 3m communication cable marked "To Battery" on the inverter except EHR models. For
EHR models, the net cable should be prepared by the customer and should be no longer than
5m.
Connection steps
1. Conrm that the battery and inverter power cables are connected (refer to 2.4.3 Battery
Wiring Connections).
2. Connect the BMS communication cable of the inverter to the communication interface of the
lithium battery.
3. Select the corresponding battery via the APP (please refer to the user manual of the PV master
app).
Screw this plate o from inverter.
1
Note: DRED device should be connected
through“DRED port" as the gure shows.

17
User Manual V1.3-2021-12-15 02 Installation Instructions
123456
3-1
1. Put the cable through the
plate.
2. Connect the cable on the
6-pin terminal.
The function of each connection
position as below:
Single hole
seal ring
RS485
communication board
Screw
Cable
Screw Cap
Insulator
Nut
NO 1 2 3 4 5 6
Function DRM1/5 DRM2/6 DRM3/7 DRM4/8 REFGEN COM /DRMO
For DRED
123456
3-2
1. Put the cable through the plate.
2. Connect cable on the 6-pin terminal.(Wiring
from the No. 5 and 6 holes respectively.)
The function of each connection position as
below:
Single hole
seal ring
RS485
communication board
Screw
Cable
Screw Cap
InsulatorNut
NO 5 6
Function REFGEN COM /DRMO
For Remote Shutdown
4
Connect DRED terminal to the right position
onto the inverter.
2.6 Earth Fault Alarm Connection
EH series inverters comply with IEC 62109-2 13.9. The fault indicator LED on the inverter cover
will light up and the system will email the fault information to customer. It must be installed in a
high trac area where the LED would be noticed.
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 of DRED device.
Please leave it on the inverter if no
external device connected.
2