Sofar solar ME-3000SP User manual

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
Energy Storage Inverter ME3000SP
User Manual
2019-9-29

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
Contents
Preface............................................................................................................................................ I
1. ME3000SP Introduction............................................................................................................ 1
2. Safety Notes................................................................................................................................2
2.1 Safety Notes..................................................................................................................... 2
2.2 Installation and Maintenance Notes.................................................................................2
3. Installation................................................................................................................................. 4
3.1 Product Overview............................................................................................................ 4
3.2 Packing List..................................................................................................................... 4
3.3 Installation Environment..................................................................................................5
3.4 Installation Tools..............................................................................................................5
3.5 Installation Position......................................................................................................... 7
3.6 Mount ME3000SP........................................................................................................... 7
4. Electrical Connection................................................................................................................ 8
4.1 Battery Connection.......................................................................................................... 8
4.2 Inverter logic interface connect....................................................................................... 9
4.3 CT / RS485 / NTC connection.......................................................................................12
4.4 Grid Connection.............................................................................................................14
4.5 Critical Load Connection (EPS function)...................................................................... 15
4.6 WIFI/GPRS module installation procedure................................................................... 16
5. Buttons and indicator lights.....................................................................................................17
5.1 Buttons........................................................................................................................... 17
5.2 Indicator lights............................................................................................................... 17
5.3 Status of ME3000SP...................................................................................................... 17
6. Operation................................................................................................................................. 18
6.1 Double Check.................................................................................................................18
6.2 First Time Setup (IMPORTANT!)................................................................................. 18
6.3 Commissioning.............................................................................................................. 21
6.4 Menu.............................................................................................................................. 21
7. Technical Data.........................................................................................................................31
8. Troubleshooting....................................................................................................................... 33
9. Quality Assurance....................................................................................................................38

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
I
Preface
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 ME3000SP .
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.
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.

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
1
1.ME3000SP Introduction
ME3000SP is an AC coupled bi-directional battery converter. Customers can purchase batteries & ME3000SP
as an energy storage add-on to his/her existing renewable energy system. ME3000SP helps to achieve optimal
usage of renewable energy. ME3000SP 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, ME3000SP will charge surplus renewable energy into the battery & discharge battery to supply
power to local load when renewable energy is not enough.
Fig. 1 ME3000SP schematic diagram

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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2.Safety Notes
Before installation, please make sure you read & understand this manual. ME3000SP 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.
2.1Safety Notes
Electrical installation and maintenance must be carried out by competent electricians according to local
regulations.
ME3000SP 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 / ME3000SP.
Disconnect DC (battery) & AC (grid & load) first, then wait at least 5 minutes (discharge capacitors) before
maintenance to prevent electric shock.
ME3000SP shall be disconnected completely (DC & AC) while being maintained.
ME3000SP can be very hot while working. Switch off ME3000SP & wait ME3000SP to cool down before
maintenance.
Keep children away from batteries & ME3000SP.
It’s not allowed to open the front cover of ME3000SP. This will void the product warranty.
ME3000SP damaged by improper installation/operation is not covered by the product warranty.
2.2Installation and Maintenance Notes
The battery has been ~ 60% charged before being delivered and shall be prevented from short circuit during
transportation and installation.
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.

ME3000SP User manual
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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.

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3.Installation
3.1Product Overview
ME3000SP is 100% strictly inspected before package and delivery. It is forbidden to put ME3000SP upside
down during delivery.
Please check the product package and fittings carefully before installation.
Fig. 2 ME3000SP & mounting bracket
3.2Packing List

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Copyright © Shenzhen SOFARSOLAR Co., Ltd
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Inspect the package and fittings carefully before installation. You should have the following fittings:
Mounting Bracket × 1
AC terminal × 6
M5 screw × 2
Battery terminal × 2
M6 flat washer × 8
Expansion Bolts × 8
Terminal cap × 4
CT terminal × 2
Current Transformer × 2
User Manual × 1
Warranty card × 1
Quality Certificate × 1
Communication cable × 1
Fig. 3 Accessories of ME3000SP
3.3Installation Environment
1) Choose a dry, clean, and tidy place, convenient for installation.
2) Ambient temperature range: -25C ~ 60C.
3) Relative humidity: 0 ~ 100% (non-condensed).
4) ME3000SP shall be installed in a well-ventilated place.
5) No flammable or explosive materials close to ME3000SP.
6) ME3000SP shall be connected to the electrical grid with an overvoltage category III or category II.
7) Maximum altitude: 2000m.
3.4Installation Tools
The following tools shall be prepared before installation:

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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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
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

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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3.5Installation Position
ME3000SP should be vertically mounted (to ensure fast heat dissipation), please choose a position without
direct sunlight / snow accumulation to install ME3000SP.
Fig. 4 Installation Position of ME3000SP
3.6Mount ME3000SP
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.
Step 4: Put ME3000SP on the mounting bracket.
Step 5: Earth ME3000SP using the grounding hole on the heat sink.
Step 6: OPTIONAL: you can lock ME 3000SP to the mounting bracket.

ME3000SP User manual
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4.Electrical Connection
1) Be aware of electric shock and chemical hazards!
2) Use a multi-meter to check the DC polarity before connecting the DC power cable between battery &
ME3000SP.
3) It’s recommended to install a rotary DC isolator (100A) between ME3000SP and batteries. Thus,
ME3000SP can be securely disconnected during installation/maintenance.
4) It’s necessary to install a AC circuit breaker (25A) between ME3000SP and electrical grid.
5) 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.
6) Make sure N wire is connected to PE wire while EPS (Emergency Power Supply) mode is enabled.
Fig. 5 Wiring Schematic of Single Phase System
4.1Battery Connection
Fig. 6 Battery connection (Test battery wires polarity before connection)

ME3000SP User manual
Copyright © Shenzhen SOFARSOLAR Co., Ltd
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Step 1: Loosen 4 screws (A) using a screwdriver (fig. 6);
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.
4.2Inverter logic interface connect
Fig. 7 Inverter logic interface connection
Step 1: Loosen 4 screws (A) using a screwdriver (fig. 7);
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;
Step5: Fasten the waterproof cover using 4 screws.
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).

ME3000SP User manual
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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 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.8 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

ME3000SP User manual
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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
Relay status: 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.9 Inverter – RRCR Connection
Table 4-4 Function description of the terminal
Pin NO.
Pin name
Description
Connected to (RRCR)
1
L1
Relay contact 1 input
K1 - Relay 1 output
2
NC
Not Connected
Not Connected
3
NC
Not Connected
Not Connected
4
NC
Not Connected
Not Connected
5
NC
Not Connected
Not Connected
6
G
GND
K1 - Relay 1 output
7
NC
Not Connected
Not Connected
8
NC
Not Connected
Not Connected
Table 4-5 The inverter is preconfigured to the following RRCR power levels
Relay status: close is 1, open is 0
L1
Active Power
Power drop rate
Cos(φ)
1
0%
＜5 seconds
1
0
100%
/
1

ME3000SP User manual
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4.3CT / RS485 / NTC connection
Fig. 10 Schematic Diagram (ME 3000SP: energy storage add-on to existing renewable system)
Step 1: Location of CTa: L wire of incoming mains. Location of CTpv: L wire of PV inverter’s output.
Step 2: Use network cable & terminal caps to extend CT wires.

ME3000SP User manual
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Fig. 11 CT wire extension
CT wire
Extension cable (network cable)
ME 3000SP
Red
Orange / white orange / brown / white brown
CT+
Black
Green / white green / blue / white blue
CT-
Fig. 12 CT / RS485 / NTC connection
Step 3: Loosen 4 screws (part A) using a screwdriver (fig. 13)
Step 4: Remove the waterproof cover (part B), loosen the cable gland (part C), then remove the stopper (part
G)
Step 5: Route CT cable through the cable gland, connect CT cable to CT terminal, then insert CT terminal
into corresponding ports.
Step 6: One communication cable is provided in the ME3000SP accessory bag. One inverter end, one BAT
end.
Route the communication cable (inverter end) through the cable gland, insert the 4P4C connector to
ME3000SP CAN port. Insert the 8P8C connector (BAT end) to PYLONTECH battery CAN port.

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Communication cable between battery &
ME3000SP
CAN communication
ME3000SP
CAN port
PYLONTECH US2000 PLUS / US2000B
CAN port
Note: Please confirm with representative of
PYLONTECH that your battery is compatible with
ME3000SP
Step 7: Connect NTC for lead acid batteries only:
Fig. 13 NTC connection
Step 8:Fasten the waterproof cover using 4 screws.
4.4Grid Connection
For most customers, please ONLY connect GRID port & leave
LOAD port unconnected.
Unless you need the EPS (Emergency Power Supply) function.
Step 1: Loosen 4 screws (part A) using a screwdriver (fig. 14)
Step 2: Remove the waterproof cover (part B), loosen the cable gland
(part C), then remove the stopper (part G)
Step 3: Route a 3-core cable through GRID cable gland, then connect
3 wires to corresponding terminal blocks. (BROWN – L, BLUE – N,
YELLOW/GREEN – PE)
Step 4: Fasten the waterproof cover using 4 screws.

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Fig. 14 Grid & Load connection
4.5Critical Load Connection (EPS function)
Critical load: in case of grid outage, if EPS function is enabled, ME 3000SP will work in EPS (Emergency
Power Supply) mode, discharge the battery & supply power to critical load via LOAD port.
LOAD port is only for critical load connection. Please make sure you’ve purchased the AC contactor from
Shenzhen SOFARSOLAR Co., Ltd.
The connection procedure of LOAD port is the same as grid connection (Fig. 15).

ME3000SP User manual
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Fig. 15 AC contactor front view, top view, and connection
Fig. 16 Critical load connection (AC contactor: 2 NC, 2 NO)
4.6WIFI/GPRS module installation procedure
Step 1:Remove WIFI/GPRS waterproof cover using screw driver.
Step 2:Install WIFI/GPRS module.
Step 3:Fasten WIFI/GPRS module using screws.

ME3000SP User manual
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5.Buttons and indicator lights
Fig 17. Buttons and indicator lights
5.1Buttons
Press “Back” to the previous screen or enter the main interface.
Press “Up” to the upper menu option or value plus 1.
Press “Down” to the lower menu option or value minus 1.
Press “OK” to select the current menu option or switch to the next digit.
5.2Indicator lights
Discharging status Light（Green）
Discharging light ON: discharging the battery
Charging status Light（Green）
Charging light ON: charging the battery
Alarm light（Red）
Alarm light ON: there’re some events in current event list.
5.3Status of ME3000SP
Status of ME3000SP
Discharging Green light
Charging Green light
Alarm Red light
Discharge
ON
Check discharge
Flashing
Charge
ON
Check charge
Flashing
Standby
Flashing
Flashing
EPS state
ON
ON
Some events in
current event list
ON