Accu ESS R050100 User manual

User Manual
Home Energy Storage System
Model: ESS R050100

- Instruction Manual for ESS R050100- 2
Catalogue
1. Safety instructions.......................................................................... 3
1.1 Safety precautions..................................................................... 3
1.2 Symbol interpretation................................................................... 3
2. Product description ......................................................................... 4
2.1 Product overview...................................................................... 4
2.1.1 Battery......................................................................... 4
2.1.2 Inverter ........................................................................ 5
2.2 Structure and composition............................................................... 5
3. Product installation ......................................................................... 9
3.1 Installation precautions ................................................................. 9
3.2 Equipment list......................................................................... 9
3.3 Installation instructions ................................................................ 11
3.3.1 Battery cabinet installation guide ................................................... 12
3.3.2 Hybrid inverter installation guide.................................................... 16
3.4 Battery system cable connection ........................................................ 18
3.4.1 Diagram of battery cabinet system connection......................................... 18
3.4.2 Connect external cables to the battery cabinet......................................... 19
3.5 Hybrid inverter cable connection......................................................... 21
3.5.1 Hybrid Inverter Grounding......................................................... 21
3.5.2 PV connection.................................................................. 22
3.5.3 Battery connection .............................................................. 23
3.5.4 On-grid & Backup connection...................................................... 25
3.5.4 CT connection .................................................................. 27
3.6 System wiring diagram ................................................................ 28
4. Operation guide ........................................................................... 28
4.1 Operating instructions ................................................................. 28
4.1.1 Check before power on ........................................................... 28
4.1.2 Power On...................................................................... 30
4.1.3 Power Off ..................................................................... 31
4.2 Inverter APP instructions............................................................... 31
4.2.1 Wi-Fi configuration .............................................................. 31
4.2.2 PV Master APP operation ......................................................... 33
4.3 Battery Status Display ................................................................. 35
5. Maintenance and troubleshooting............................................................. 37
5.1 Daily maintenance .................................................................... 37
5.2 Battery troubleshooting ................................................................ 38
5.3 Inverter error message ................................................................ 39
5.4 Inverter troubleshooting ............................................................... 41
6. Packaging, transportation, storage ............................................................ 42
Appendix A Technical Parameter Table .......................................................... 43

- Instruction Manual for ESS R050100- 3
1. Safety instructions
Before installing, using and servicing the product, users must read the manual carefully and
follow the safety precautions required in the manual. The safety precautions mentioned in this
manual are only to supplement the local safety regulations.
1.1 Safety precautions
◼The product must be installed and maintained by professionals in accordance with local
standards and regulations, and in strict accordance with the manual installation steps.
◼Before installation and maintenance, make sure that the power supply is off to prevent electric
shock or fire.
◼During normal operation, it is strictly prohibited to directly touch the output and input terminals
to avoid the risk of electric shock.
◼During normal operation, do not directly open the machine casing, otherwise it may cause electric
shock.
◼Keep the equipment away from flammable and explosive materials, and away from heat sources.
◼It is forbidden to modify the equipment by yourself to avoid serious accidents.
1.2 Symbol interpretation
Note! Failure to operate as required
may result in moderate or minor
injury to the person and damage to
the product!
DO NOT dispose of the
battery in normal waste.
DO NOT include battery with
Lead Acid battery recycling
Danger: Risk of high voltage, be
careful of electric shock!
Recyclable!
No smoking!
This face should not be tilted
upside down!
Do not step on!
Please read the manual
carefully before use!
The air outlet of the device is hot and
carefully touched!
Protective grounding!
Wait 5 minutes after power off to
ensure the machine is fully
discharged!
Grounding general
identification!
5 m in

- Instruction Manual for ESS R050100- 4
2. Product description
2.1 Product overview
ESS R050100 home energy storage system products are composed of lithium batteries and
bidirectional energy storage inverters (hereinafter referred to as PCS), providing renewable energy
applications and uninterruptible power supply support services. The system can be used in
scenarios where photovoltaics are used spontaneously and the excess is connected to the Internet:
during the day, photovoltaic power generation first meets the power demand of the load, and the
excess electricity charges the battery or the grid; when there is no photovoltaic at night, the load
can choose to use the grid or battery power supply.
2.1.1 Battery
ESS R050100 Battery Cabinet components are defined as below:
◼Battery module H102025M-S: The Battery module provides the energy and sends the
information about the cell voltage and cell temperature in the battery module to the upper
layer BMU. The nominal capacity of the battery is 2.5kWh, and the open circuit voltage of the
battery is 102 ~ 106V.
◼Battery control boxH100030H-P01: Two parts consisting of both the battery management and
control component mounted on top of the battery modules as well as structural base, which
physically supports the battery modules underneath. The top portion of the BCMU is
responsible for communication to and connection with the inverter or BMU.
ESS R050100 battery cabinet consists of 4 battery modules (H102025M-S) and battery control
box (H100030H-P01). The system voltage and total capacity can be configured according to different
application scenarios and requirements.
5 Battery 4 Battery 3 Battery
Picture 2-1 Schematic diagram of battery connection
Control box
BATT+ BATT-
Control box
BATT+ BATT-
Control box
BATT+ BATT-

- Instruction Manual for ESS R050100- 5
2.1.2 Inverter
Inverter normally has the following operation modes based on your configuration and layout
conditions.
2.2 Structure and composition
The product adopts a modular design framework, and the 3/4/5 battery modules and 1 control
box are assembled in components for easy replacement.
ModeⅠ:
The energy produced by the PV
system is used to optimize self-
consumption. The excess energy
is used to charge the batteries,
then exported to grid.
ModeⅡ:
When there is no PV, and the
battery is sufficient, it can supply
the load together with grid power.
ModeⅢ:
When grid fails, the system
automatically switches to Back-Up
mode. The Back-Up load can be
supported by PV and the battery.
ModeⅣ:
Battery can be charged by grid,
and charging time/power can be
set flexibly on Inverter APP.

- Instruction Manual for ESS R050100- 6
Picture 2-2 Schematic diagram of structural composition
（1）Back bracket
（2）Battery module
（3）Control box
（4）Output wiring port
（5）SOC indication
（6）Cabinet foot
（7）ventilation
（8）Side door
（9）Cabinet back side
Picture 2-3 Appearance of the inverter

- Instruction Manual for ESS R050100- 7
Picture 2-4 Appearance of the high voltage control box
NO.
Explain
Function
Definition
Note
1
LED
LED Light display interface
1: LED1
2: LED2
3: LED3
4: LED4
5: LED5
6: NC
7: VDD
8: GND
2
COM1
Communication interface with the
highest battery string
3
COM2
Communication interface with the
lowest battery string
4
POWER
Battery cabinet start switch
interface③
1、4：SW
2、3：NC
5
ADDR
Battery cabinet address setting②
1:ADDR1
2:NC
3:NC
4:ADDR2
6
RES
CAN/RS485 Optional interface for
communication terminal resistance
①
1: CAN Communication
resistance
"ON"
means
connecting
terminal
2:NC
3:NC

- Instruction Manual for ESS R050100- 8
4:485 Communication
resistance
resistance
7
RS485
RS485 Interface
1:485A
2:485B
3-6:NC
8
CAN
CAN communication interface
1:CANL
2:CANH
3-8：NC
9
QS
Battery cabinet isolation manual
output switch
10
LOAD/CHG
The output port of the battery
cabinet
11
BATT
Battery input interface
Picture 2-5 Appearance of the battery module
NO.
Explain
Function
Note
1
COM1
Interface with high - string battery
communication
2
COM2
Interface with low - string battery
communication
3
Breaker
Battery air-switch interface
4
BATT
Battery output interface

- Instruction Manual for ESS R050100- 9
3. Product installation
3.1 Installation precautions
Please follow the instructions below before starting the installation:
◼Whether the ambient temperature of the installation site is within the specified range of -20℃～
+55℃ (recommended at 0℃～40℃).
◼The installation location is well ventilated, away from inflammable and explosive materials,
and it is forbidden to install and operate in salt spray environment.
◼The product is prohibited from tilting or sideways.
◼The product should be installed in a location that avoids sun, rain, snow, etc.
3.2 Equipment list
Before installation, please check whether the appearance of the machine is intact, and check
whether the parts of the accessory package are consistent with the list.
Table 3-1 Battery Cabinet list
NO.
Picture
Material Name
Specification Model
QTY.
1
Battery Cabinet
ESS R050100
1
2
Expansion Bolt
M6x60
2
3
RJ45 Connector
RJ45
2
4
PCS-BAT Power
cable
UL1015 10AWG red 2500mm
1
5
PCS-BAT Power
cable
UL1015 10AWG black 2500mm
1

- Instruction Manual for ESS R050100- 10
6
PCS-BAT
Communication
UL2835 2500mm
1
7
Cable tie
1.8ⅹ150mm Nylon; white
20
8
Terminals
RNYD5-6 Yellow
2
10
General
certificate
General certificate
1
11
User Manual
English language
1
12
Drier
20g
4
Table 3-2 Hybrid Inverter list
NO.
Picture
Material Name
NO.
Picture
Material Name
1
Inverterⅹ1
8
PE terminalⅹ1
2
Wall-mounted
Bracketⅹ1
9
Expansion Boltsⅹ4
3
Smart Meterⅹ1
with 3 CT
10
AC Cover
ⅹ1

- Instruction Manual for ESS R050100- 11
4
Positive PV Plug
ⅹ2
11
Pan head screwⅹ6
5
Negative PV Plug
ⅹ2
12
Pin Terminal
ⅹ12
6
Positive BAT Plug
ⅹ1
13
User Manual
ⅹ1
7
Negative BAT Plug
ⅹ1
14
Quick Installation
Guideⅹ1
3.3 Installation instructions
The battery system cabinet can be installed on the floor and wall mount. The system adopts
the natural heat dissipation method. When installing, 240mm of heat dissipation space is required
on the left and right sides of the cabinet.
Picture 3-1 Installation Diagram

- Instruction Manual for ESS R050100- 12
3.3.1 Battery cabinet installation guide
Use professional handling equipment to move the cabinet to the installation site. The
equipment is placed on the back of the wall, and space for heat dissipation and safety is reserved.
The ground is kept flat, and the cabinet is connected to the wall by mounting parts for reliable
fixing.
Equipment handling method Battery cabinet
(1) Transport the cabinet to the installation location. The floor of the cabinet installation must meet
the load-bearing capacity of 1200KG/m2; measure the size of the back-fixing parts using an
M8 drill bit, drill two holes with a depth of about 60mm on the wall, and knock in the
expansion bolts;
(2) Remove the back-fixing parts: use a screwdriver to unscrew the 2 fixing screws on the
mounting bracket, and take off the fixing parts;
(3) Pass the fixing parts through the expansion bolts, and fix them firmly with elastic flat washers
and nuts. The torque of the wrench is ≥4NM;
(4) Place the cabinet close to the fixed wall, and use the removed screws to fix the cabinet and the
fixing parts firmly according to the way when the fixing parts are removed;
(5) Adjust the equipment foot to make the cabinet steadily placed on the ground;

- Instruction Manual for ESS R050100- 13
Picture 3-2 Schematic diagram of cabinet installation
Note: If the battery packs have been installed in the cabinet, you can skip the following steps.
(6) Remove the battery box and main control box protective cover
Before installing the battery box, the breaker switch must be pulled out.
Fix the device against the wall
Adjust the cabinet feet
Protecting cover
Before dismantle
Dismantle diagram
Protecting cover 1-2
V

- Instruction Manual for ESS R050100- 14
Picture 3-3 Schematic diagram of dismantle the battery box protective cover
Picture 3-4 Schematic diagram of dismantle the main control box protective cover
After dismantle
Before dismantle
After dismantle
Protecting cover 1-2
Protecting cover 1
Dismantle diagram
Protecting cover 2-3
V

- Instruction Manual for ESS R050100- 15
(7) Use a Phillips screwdriver to dismantle the side door screws, dismantle the side door, and place
it against the wall.
Picture 3-5 Dismantle the side door of the battery cabinet
(8) Insert the battery box and the main control box into the cabinet in turn, and fix both sides with
M6 screws.
Picture 3-6 Install battery box and main control box
Main control box
BATT 1
BATT 2
BATT 3
BATT 4
(a) Overall installation
diagram
(b) 10kWh Schematic diagram of
battery cabinet installation

- Instruction Manual for ESS R050100- 16
3.3.2 Hybrid inverter installation guide
This Hybrid inverter is designed for outdoor use (IP65), Please make sure the installation site
meets below conditions:
◼Not in direct sunlight.
◼Not in areas where highly flammable materials are stored.
◼Not in potential explosive areas.
◼Not in the cool air directly.
◼Not near the television Antenna or antenna cable.
◼Not higher than altitude of about 2000 meters above sea level.
◼Not in environment of precipitation or humidity (>95%).
Leave enough space around inverter following the values.
Follow the steps below to complete the inverter installation:
(1) Please use the mounting bracket as a template to drill 4 holes on right positions (10mm in
diameter and 80mm in depth). Use expansion bolts in accessory box and fix the mounting
bracket onto the wall tightly.

- Instruction Manual for ESS R050100- 17
(2) Carry the inverter by holding the heating sink on two sides and place the inverter on the
mounting bracket.
(3) A lock could be used for anti-theft if it is necessary for individual requirement.

- Instruction Manual for ESS R050100- 18
3.4 Battery system cable connection
3.4.1 Diagram of battery cabinet system connection
Note: This section mainly describes the battery module assembly instructions. If the battery packs
have been installed in the cabinet, you can skip this section.
When carrying out the internal wiring operation of the system, first pull out the circuit
breaker of the battery box, the isolation switch on the control box is in the OFF state.
When the battery circuit breaker is installed, there is a high voltage output at the battery
terminal, which may cause electric shock!
Step1: Install the power cable (solid line) first.
Step2: Then install the communication cable (dotted cable).
Step3: Finally, install the LED light wire harness and the boot wire harness.
10kWh please connect the battery cabinet according to the example in the figure below and the
cable mark.
Communication cable
①
②
③
④ ④
⑤
⑥
⑦⑦
⑧
⑨
Power cable +
Power cable -

- Instruction Manual for ESS R050100- 19
No.
Name
Spec.
L(mm)
①
LED wire harness
CON-LED,LED
650
②
Power-on wire harness
DRY-1,DRY-4
800
③
BAT Output positive cable
BAT+,CAON-BAT+
620
④
BAT Positive and negative in series cable
BAT+,BAT-
670
⑤
BAT Positive and negative in series cable
BAT+,BAT-
100
⑥
BAT Output negative cable
BAT-,CAON-BAT-
740
⑦
COM wire harness
COM
670
⑧
COM wire harness
COM
130
⑨
COM wire harness
COM
830
Note：
1. When installing the power-on wiring harness, you need to connect the wiring harness to the
connector of the green four-position wiring hole, and then insert the connector to the
corresponding position of the battery box. The schematic diagram is as follows:
2. When installing the LED light wire harness, insert the connector on the wire harness into
the corresponding position of the main control box. The schematic diagram is as follows:
3.4.2 Connect external cables to the battery cabinet
When installing the cable between the battery system and the inverter, follow the steps below:
(1) Confirm that the battery system and inverter are shut down.
(2) Confirm that the circuit breaker on the battery box is off and the isolating switch on the control
box is “OFF”.
When carrying out the external wiring operation of the system, the isolation switch on the
control box is must be in the OFF state!
Cable mark：DRY-1
Cable mark：DRY-4

- Instruction Manual for ESS R050100- 20
When the isolation switch is closed, the output port of the battery control box has high
voltage, which may cause electric shock!
(3) Pass the positive and negative power cables and communication cables through the waterproof
connectors on the cabinet and connect them to the output interface and communication interface
of the main control box respectively.
Before connecting the BMS communication cable to inverter, please make sure that the CAN
cable is connected correctly. In some cases it might be needed to make the CAN cable at the
location. Find below the pin-outs. Make sure to very carefully test the cable after crimping it. Self-
made cables are very often the causes of very hard to diagnose problems.
No.
Name
Cable mark
L(mm)
①
Ground wire
Provide local
----
②
PCS-BAT positive cable
LOAD/CHG+、PCS/BAT+
2500
③
PCS-BAT negative cable
LOAD/CHG-、PCS/BAT-
2500
④
PCS-BAT
communication cable
BAT/CAN、 PCS/CAN
2500
①
②
③④
Communication cable
Power cable +
Power cable -
Ground wire