Sofar solar ME-3000SP User manual

Shenzhen SOFARSOLAR Co., Ltd.
Energy Storage Inverter
Product Model: ME 3000SP
User manual

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
Contents
Preface............................................................................................................... II
1. ME 3000SP Introduction........................................................................... - 1 -
2. Safety Notes...............................................................................................- 2 -
2.1. Safety Notes....................................................................................- 2 -
2.2. Installation and Maintenance Notes................................................- 2 -
2.3. Signs on the inverter....................................................................... - 3 -
3. Installation................................................................................................. - 5 -
3.1. Product Overview........................................................................... - 5 -
3.2. Packing List.................................................................................... - 6 -
3.3. Installation Environment................................................................ - 8 -
3.4. Installation Tools.............................................................................- 8 -
3.5. Installation Position........................................................................ - 9 -
3.6. Mount ME 3000SP....................................................................... - 10 -
4. Electrical Connection...............................................................................- 12 -
4.1. Battery Connection....................................................................... - 13 -
4.2. Inverter logic interface connection............................................... - 13 -
4.3. CT/RS485/NTC connection..........................................................- 16 -
4.4. Grid Connection............................................................................- 19 -
4.5. Critical Load Connection(EPS function)......................................- 20 -
4.6. WiFi/GPRS/Ethernet module installation procedure....................- 22 -
5. Buttons and indicator lights..................................................................... - 23 -
5.1. Buttons.......................................................................................... - 23 -
5.2. Indicator lights.............................................................................. - 23 -
5.3. Status of ME3000SP.....................................................................- 24 -
6. Operation................................................................................................. - 25 -
6.1. Double Check............................................................................... - 25 -
6.2. First Time Setup(IMPORTANT!).................................................- 25 -
6.3. Commissioning............................................................................. - 28 -
6.4. Menu............................................................................................. - 29 -
7. Troubleshooting.......................................................................................- 44 -
8. Technical Data......................................................................................... - 51 -
9. Quality Assurance....................................................................................- 53 -

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
I
Notice
This manual contains important safety instructions that must be followed
during installation and maintenance of the equipment.
Save these instructions!
This manual must be considered as an integral part of the equipment.The
manual must always accompany the equipment,even when it is transferred to
another user or field.
Copyright Declaration
The copyright of this manual belongs to Shenzhen SOFARSOLAR
Co.,Ltd.Any corporation or individual should not plagiarize,partially copy or fully
copy it(including software,ect.),and no reproduction or distribution of it in any form
or by any means.All right reserved.
SOFARSOLAR reserves the right of final interpretation.This manual is subject
to change according to user’s or customer’s feedback.Please check our website at
http://www.sofarsolar.com for latest version.

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
II
Preface
If you have any question or problem when you read the following
information,please contact Shenzhen SOFARSOLAR Co.,Ltd.
Note
Outline
Please read the product manual carefully before installation,operation or
maintenance.This manual contains important safety instructions and installation
instructions that must be followed during installation and maintenance of the
equipment.
Scope
This product manual describes the installation,electrical
connections,commissioning,maintenance and troubleshooting of ME 3000SP
inverters.
Keep this manual where it will be accessible at all times.
Target Group
This manual is intended for qualified electrical technical personnel who are
responsible for inverter installation and commissioning in the PV power system and
PV plant operator.
Symbols Used
This manual is provides safety operation information and uses the symbol in
order to ensure personal and property security and property security and use
inverter efficiently when operating the inverter.You must understand these
emphasized information to avoid the personal injury and property loss.Please read
the following symbols used in this manual carefully.

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
III
Danger indicates a hazardous situation which,if not
avoided,will result in death or serious injury.
Danger
Warning indicates a hazardous situation which,if not
avoided,could result in death or serious injury.
Warning
Caution indicates a hazardous situation which,if not
avoided,could result in minor or moderate injury.
Caution
Attention indicates potential risks which,if not
avoided,may lead to equipment fault or property damage.
Attention
Note provides tips that are valuable for the optimal
operation of the product.
Note

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
- 1 -
1. ME 3000SP Introduction
ME 3000 SP is an AC coupled bi-directional battery converter.Customers can
purchase batteries&ME 3000SP as an energy storage add-on to his/her existing
renewable energy system.ME3000SP helps to achieve optimal usage of renewable
energy.ME 3000SP controls bi-directional flow of electric power,work under auto
or time-of-use(TOU)modes,charge/discharge the battery when needed.
In auto mode,ME 3000SP will charge surplus renewable energy into the
battery&discharge battery to supply power to local load when renewable energy is
not enough.
Fig.1-1 ME 3000SP schematic diagram

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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2. Safety Notes
Before installation,please make sure you read&understand this manual.ME
3000SP strictly comply with safety rules of design and testing.During the
installation,operation and maintenance,operators should abide by local safety
regulations.Improper operation may cause an electric shock or damage the
equipment and properties.
2.1. Safety Notes
Electrical installation and maintenance must be carried out by competent
electricians according to local regulations.
ME 3000SP can only be installed by qualified electrician,and only those
who have appropriate accreditation,as required by local authority.
Do NOT put explosives or flammable materials, e.g.gasoline, kerosene,
oil, wood slab, cotton,or rag close to batteries/ME 3000SP.
Disconnect DC(battery)&AC(grid&load)first,then wait at least 5
minutes(discharge capacitors)before maintenance to prevent electric shock.
ME 3000SP shall be disconnected completely(DC&AC)while being
maintained.
ME 3000SP can be very hot while working.Switch off ME 3000SP&wait
ME 3000SP to cool down before maintenance.
Keep children away from batteries&ME 3000SP.
It’s not allowed to open the front cover of ME 3000SP.This will void the
product warranty.
ME 3000SP damaged by improper installation/operation is not covered
by the product warranty.
2.2. Installation and Maintenance Notes
The battery has been~60%charged before being delivered and shall be
prevented from short circuit during transportation and installation.

ME 3000SP User manual
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ME3000SP/batteries shall be placed in a well-ventilated place.Do not put
the ME3000SP/batteries in an airtight or badly ventilated place or cabinet.This can
be very harmful to system performance&system service life.
Keep ME3000SP/batteries away from direct sunshine.Don ’t put
ME3000SP/batteries close to a furnace or fire.The can lead battery to leak even
explode.
The current capacity of DC power cables(from battery to inverter)should
be at least 90A.Use short power cables to avoid high voltage drop&power loss.
Use a multimeter to check the batter voltage&polarity before switching
ON batteries.Make sure connections are correct according to this manual.
If you want to store the batteries without using them,they should be
disconnected from ME3000SP,and be kept in a cool,dry,and ventilated
environment.
Battery maintenance operators shall have the knowledge and technical
skill for battery maintenance;
All batteries connected in parallel should be of the same model,and have
same firmware version.This is a design issue needs to be considered by
designer/installer,particularly when replacing batteries or modifying an existing
energy storage system.
Warning:Do not disassemble or break the battery.Its electrolyte can be
toxic and damage your skin and eyes.
Warning:follow the following rules during battery
installation/maintenance.
a)Take off your watch,ring,and other metal objects.
b)Only use tools with insulated handles.
c)Wear rubber gloves and shoes.
d)Do not put tools or metals above the battery.
e)Switch off ME3000SP&batteries before connecting/disconnecting battery
terminals.
f)Battery positive/negative poles should be isolated from ground.
2.3. Signs on the inverter
There are some symbols which are related to security on the inverter.Please

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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read and understand the content of the symbols before system installation.
This symbol indicates a hazardous situation which could result
in injuries,if not avoided.
Risk of Electric Shock and wait at least 5 mins after switching
OFF inverter.
Be careful of high voltage and electric shock.
Be careful of hot surface.
Comply with the Conformity Europeanness(CE)certification.
Earth terminal.
Please read this manual before installing inverter.
This indicates the degree of protection of the equipment
according to IEC standard 70-1(EN 60529 June 1997).
Positive pole and negative pole of the DC voltage(PV&Battery).
This side up,inverter must always be transported,handled and
stored in such a way that the arrows always point upwards.
RCM(Regulatory Compliance Mark)
The product complies with the requirements of the applicable
Australian standards.

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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3. Installation
3.1. Product Overview
ME 3000SP is 100%strictly inspected before package and delivery.It is
forbidden to put ME 3000SP upside down during delivery.
Please check the product package and fittings carefully before installation.
CAUTION
Please check the product package and fittings carefully before
installation.

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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3.2. Packing List
Inspect the package and fittings carefully before installation.You should have
the following fittings:
Table3-1 Components and mechanical parts that should be delivered
NO.
Picture
Description
Quantity
1
Inverter
1pcs
2
Mounting Bracket
1pcs
3
AC terminal
6pcs
4
M5 screw
2pcs
5
Battery terminal
2pcs

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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6
M6 flat washer
8pcs
7
Expansion Bolts
8pcs
8
Terminal cap
4pcs
9
CT terminal
2pcs
10
CT
2pcs
11
Communication cable
1pcs
12
User Manual
2pcs
13
Warranty card
1pcs
14
Quality Certificate
1pcs

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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3.3. Installation Environment
Choose a dry,clean,and tidy place,convenient for installation
Ambient temperature range:-25℃~60℃
Relative humidity:0~100%(non-condensed)
Inverter shall be installed in a well-ventilated place
No flammable or explosive materials close to inverter
The AC overvoltage category of inverter is category III
Maximum altitude:2000m
3.4. Installation Tools
The following tools shall be prepared before installation:
No.
Tool
Model
Function
1
Hammer drill
Recommend
drill dia.6mm
Used to drill holes on the wall
2
Screwdriver
wiring
3
Wire stripper
Strip wire
4
4mm Allen Key
Turn the screw to connect rear panel with
inverter
5
Crimping tools
Used to crimp power cables
6
Multi-meter
Used to check grounding

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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7
Marker pen
Used to mark signs
8
Measuring tape
Used to measure distances
9
Level
Used to ensure that the rear panel is
properly installed
10
ESD gloves
Operators wear
11
Safety goggles
Operators wear
12
Anti-dust
respirator
Operators wear
3.5. Installation Position
ME 3000SP inverter should be vertically mounted(to ensure fast heat
dissipation),please choose a position without direct sunlight/snow accumulation to
install ME 3000SP inverter.Please the installation position is well-ventilated.
Fig.3-2 Installation Position of ME 3000SP inverter

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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3.6. Mount ME 3000SP
Fig.3-3 Mount ME 3000SP
Step 1:Put the mounting bracket properly on the wall,mark these 8 drill holes
using a marker pen.Drill 8 holes(drill bit 6mm)on the wall.
Step 2:Insert the expansion screw vertically into the hole,note the insertion
depth.(not too shallow or too deep)
Step 3:Fix the mounting bracket on the wall using bolts&flat washers.

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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Step 4:Put ME 3000SP inverter on the mounting bracket.
Step 5:Earth ME 3000SP inverter using the grounding hole on the heat sink.
Step 6:OPTIONAL:you can lock ME 3000SP inverter to the mounting
bracket.

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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4. Electrical Connection
Be aware of electric shock and chemical hazards!
WARNING
Use a multi-meter to check the DC polarity before connecting the DC
power cable between battery&ME3000SP.
It’s recommended to install a rotary DC isolator(100A)between
ME3000SP and batteries.Thus,ME3000SP can be securely disconnected during
installation/maintenance.
It’s necessary to install a AC circuit breaker(25A)between ME3000SP
and electrical grid.
It is very important for system safety and efficient operation to use
appropriate cable for electrical connection.
Battery connection:AWG8 or AWG6 cable.
Grid&Load connection:AWG12 cable.
Make sure N wire is connected to PE wire while EPS(Emergency Power
Supply)mode is enabled.
Fig.4-1 Electrical connections

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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4.1. Battery Connection
Fig.4-2 Battery connection(Measure battery wires polarity/voltage before connection)
Step 1:Loosen 4 screws(A)using a screwdriver(Fig.4-2);
Step 2:Remove the waterproof cover(B),loosen the cable gland(C),and then
remove the stopper(G);
Step 3:Route the battery wires(F)through the cable gland,then connect battery
wires using OT terminal(E);
Step 4:Fasten the waterproof cover using 4 screws.
4.2. Inverter logic interface connection
Step 1:Loosen 4 screws(A)using a screwdriver(fig.4-4①);
Step 2:Remove the waterproof cover(B),Loosen the cable gland(C),and then
remove the stopper(G);
Step 3:Press the wire terminals in color sequence;
Step 4:Route Cable terminal through the cable gland,Insert the communication
cable into the RJ45 connector;
Step 5:Fasten the waterproof cover using 4 screws.
Fig.4-3 Logic interface

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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①
②
③
1.White and orange
2.Orange
3.White and green
4.Blue
5.White and blue
6.Green
7.White and brown
8.Brown
④
The logic interface pin definitions and circuit connections are as follows:
Logic interface pin are defined according to different standard requirements
（a）Logic interface for AS/NZS 4777.2:2015,also known as inverter demand
response modes(DRMs).
The inverter will detect and initiate a response to all supported demand
response commands within 2 s.The inverter will continue to respond while the
mode remains asserted.
Table 4-1 Function description of the DRMs terminal
Pin NO.
Color
Function
1
White and orange
DRM1/5
2
Orange
DRM2/6
3
White and green
DRM3/7
4
Blue
DRM4/8
5
White and blue
DRM0
6
Green
RefGen
7
White and brown
Pin7&Pin8 short internal
8
Brown
（b）Logic interface for VDE-AR-N 4105:2018-11,is in order to control and/or

ME 3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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limit the inverter’s output power.
The inverter can be connected to a RRCR(Radio Ripple Control Receiver)in
order to dynamically limit the output power of all the inverters in the installation.
Fig.4-4 Inverter–RRCR Connection
Table 4-2 Function description of the terminal
Pin NO.
Pin name
Description
Connected to(RRCR)
1
L1
Relay contact 1 input
K1-Relay 1 output
2
L2
Relay contact 2 input
K2-Relay 2 output
3
L3
Relay contact 3 input
K3-Relay 3 output
4
L4
Relay contact 4 input
K4-Relay 4 output
5
NC
Not Connected
Not Connected
6
G
GND
Relays common node
7
NC
Not Connected
Not Connected
8
NC
Not Connected
Not Connected
Table 4-3 The inverter is preconfigured to the following RRCR power levels,close is 1,open is 0
L1
L2
L3
L4
Active Power
Cos(φ)
1
0
0
0
0%
1
0
1
0
0
30%
1
0
0
1
0
60%
1
0
0
0
1
100%
1
（c）Logic interface for EN50549-1:2019,is in order to cease active power
output within five seconds following an instruction being received at the input
interface.
Fig.4-5 Inverter–RRCR Connection