MasterPower RAI-3K-48ES-5G User manual

Master Battery, S.L.
If you encounter any problem on the inverter, please find out the inverter S/N
and contact us, we will try to respond to your question ASAP.
Beta AC Coupled Inverter
Instruction Manual
Ver1.0
Please adhere to the actual products in case of any discrepancies in this user manual.
Master Battery, S.L.
Paseo de Extremadura, 39
28935 Móstoles, Madrid, Spain
Tel: [phone]
Fax: [phone]
Email: [email protected]
Web: www.masterbattery.es

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1.1 Product Description
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1. Introduction
1.2 Packaging
2. Safety & Warning
2.1 Safety
2.2 General Safety Instructions
3. Overview
3.1 Screen
3.2 Keypad
4. Installation
5.2 Information
5.3 Settings
5.4 Advanced Info
Contents
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6. Commissioning
6.1 Preparation of Commissioning
6.2 Commissioning Procedure
7. Troubleshooting ……………………………………………………………………………………………………………… 32
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5.5 Advanced Settings
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2.3 Notice for Use 5
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3.3 Terminal Connection …………………………………………………………………………………………………………
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8. Maintenance
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5. Operation
5.1 Main Menu
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4.1 Select a Location for the Inverter
4.2 Mounting the Inverter
4.3 Assemble the Battery Cables
4.4 Assemble the AC Cables
4.5 CT Installation
4.6 Assemble Other Cables
4.7 LED Indicates
4.8 Beta TechView Illustration 17
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9. Appendix
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9.1 Special Back-up Connection

1.1 Product Description
The Beta AC-Coupled inverter is used for upgrade the existing on-grid power generation system
to a hybrid system which can work with batteries to optimize self-consumption. The Beta AC-
Coupled inverter model type:
Figure 1.1
Front side view
LED lights
Figure 1.2
Bottom side view
Inverter x1 Mounting bracket x1 Europe type terminal x6
.3..2.
1. Introduction 1. Introduction
1.2 Packaging
Please ensure that the following items are included in the package along with your inverter:
CT x1 Wifi antenna x1
If anything is missing, please contact your local Beta distributor.
Locking screws x2
Display
Keys
RAI-3K-48ES-5G
User manual x1
Inst ruct ion M anua l
Beta AC-Coupled Inverter
Ningbo G inlon g Technol ogies C o., Ltd .
Ver1.0
CAN cable x1 Battery power cable x2 RJ45 connector x2
Fixing screws x4
(For mounting bracket)
BAT+
BAT-
DO CT/Meter WIFI
CAN DRM COM
AC-BACK
L N P E
AC-GRID
L N P E

2.1 Safety
The following types of safety instructions and general information appear in this document as
described below:
.5..4.
CAUTION:
“Caution” indicates a hazardous situation which if not avoided, could result
in minor or moderate injury.
WARNING:
“Warning” indicates a hazardous situation which if not avoided, could result
in death or serious injury.
DANGER:
“Danger” indicates a hazardous situation which if not avoided, will result in
death or serious injury.
NOTE:
“Note” provides tips that are valuable for the optimal operation of your
product.
2. Safety & Warning 2. Safety & Warning
2.2 General Safety Instructions
WARNING:
Electrical installations must be done in accordance with the local and national
electrical safety standards.
WARNING:
Please don’t connect positive (+) or negative (-) cable to ground, it could
cause serious damage to the inverter.
WARNING:
Only devices in compliance with SELV (EN 69050) may be connected to the
RS485 and USB interfaces.
WARNING:
Do not touch any inner live parts until 7 minutes after disconnection
from the utility grid and the DC input.
CAUTION:
Risk of electric shock from energy stored in capacitors of the Inverter, do not
remove cover for 7 minutes after disconnecting all power sources (service technician
only). Warranty may be voided if the cover is removed without authorization .
CAUTION:
The surface temperature of the inverter can reach up to 75℃ (167 F).
To avoid risk of burns, do not touch the surface of the inverter while it’s operating.
Inverter must be installed out of the reach of children.
CAUTION:
Risk of electric shock, do not remove cover. There is no user serviceable
parts inside, refer servicing to qualified and accredited service technicians.
WARNING:
Operations below must be accomplished by licensed technician or Beta
authorized person.
WARNING:
Operator must put on the technicians’ gloves during the whole process in case
of any electrical hazards.
2.3 Notice for Use
The inverter has been constructed according to the applicable safety and technical
guidelines. Use the inverter in installations that meet the following specifications ONLY:
1. Permanent installation is required.
2. The electrical installation must meet all the applicable regulations and standards.
3. The inverter must be installed according to the instructions stated in this manual.
4. The inverter must be installed according to the correct technical specifications.
7min

BAT+
BAT-
DO CT/Meter WIFI
CAN DRM COM
AC-BACK
L N P E
AC-GRID
L N P E
3.1 Screen
Beta AC-Coupled inverter adopts LCD screen, it displays the status, operating information and
settings of the inverter.
.6. .7.
3.2 Keypad
There are four keys on the front panel of the inverter (from left to right):
ESC, UP, DOWN and ENTER keys. The keypad is used for:
Scrolling through the displayed options (the UP and DOWN keys);
Access and modify the settings (the ESC and ENTER keys).
Figure 3.1 Keypad
Beta AC-Coupled inverter is different from normal on-grid inverter, please refer to the instructions
below before start connection.
3.3 Terminal Connection
Figure 3.2 Front panel display
Dry Contact Port
WARNING:
Please refer to the specification of the battery before configuration.
CAN
CT/Meter WIFI
DRM COM
AC backup port(L/N/PE)
AC grid port(L/N/PE)Battery (-)
Battery (+)
3. Overview
4.1 Select a Location for the Inverter
Figure 4.1 Recommended installation locations
To select a location for the inverter, the following criteria should be considered:
Exposure to direct sunlight may cause output power derating. It is recommended to
avoid installing the inverter in direct sunlight.
It is recommended that the inverter is installed in a cooler ambient which doesn't
exceed 104℉/40℃.
4. Installation

.9..8.
4. Installation4. Installation
To avoid overheating, always make sure the flow of air around the inverter is not
blocked. A minimum clearance of 300mm should be kept between inverters or
objects and 500mm clearance between the bottom of the inverter and the ground.
Visibility of the LEDs and LCD should be considered.
Adequate ventilation must be provided.
NOTE:
Nothing should be stored on or placed against the inverter.
Install vertically with a maximum incline of +/- 5 degrees, exceeding this may cause
output power derating.
300mm
500mm 500mm
300mm 300mm
300mm 300mm
Figure 4.2 Inverter mounting clearance
Install on a wall or strong structure capable of bearing the weight of the inverter (15kg).
4.2 Mounting the Inverter
The inverter shall be mounted vertically.
The steps to mount the inverter are listed below:
1. Select the mounting height of the bracket and mark the mounting holes.
For brick walls, the position of the holes should be suitable for the expansion bolts.
Figure 4.4 Fix bracket on the wall
Once a suitable location has be found according to 4.1, please refer to figure 4.3 and
figure 4.4 and mount the wall bracket to the wall.
Suitable fixing screws
Bracket
Dimensions of mounting bracket:
Figure 4.3 Inverter wall mounting
WARNING:
The inverter must be mounted vertically.

4. Installation4. Installation
.10.
Figure 4.5 Wall mount bracket
2. Lift up the inverter (be careful to avoid body strain), and align the back bracket on the
inverter with the convex section of the mounting bracket. Hang the inverter on the
mounting bracket and make sure the inverter is secured (see Figure 4.5)
.11.
4.3 Assemble the Battery Cables
Step 1. Please unlock the 4*M4 screws on the battery port protection cover as shown in the below
figure.
Step 2. Insert the battery power cables (in package) into the water-proof swivel nut on the cover,
(Break the plastic film on it).
Step 3. Fasten the battery power cables onto the BAT+ and BAT- terminals on the inverter. Please
make sure the labels on cable and inverter match up.
Step 4. Lock the 4*M4 screws and fix the cover onto the inverter.
Step 5. Connect the other side of the battery power cables to the battery.
Figure 4.7
WARNING:
Incorrect polarity of the battery cable may lead to permanent damage
on the device.
Figure 4.8
BAT(+) Battery(+)
BAT(-) Battery(-)
M4 cross screws
DO CT/Meter WIFI
CAN DRM COM
WARNING:
To avoid DC Arc, Beta recommends installing DC switch between batteries and
AC-Coupled Inverter.
Ensure the correct polarity of batteries before connecting to the inverter.
Figure 4.6 Remove the cover
Please make sure to remove the cover at the bottom of the inverter before assembling the
terminals.
Remove the cover as shown in the picture and follow the direction to lift the cover, make
sure the buckles on the left and right sides are correctly loosened.

.13..12.
4. Installation4. Installation
AC-BACK
L N PE
AC-GRID
L N PE
There are two AC terminals and the assembly steps for both are the same
(AC backup port and AC grid port).
4.4 AssembletheACCables
Step 1. Please unlock the 4*M4 screws on the AC ports protection cover as shown in the below
figure.
Step 2. Insert the AC grid cables and AC backup cables into the corresponding water-proof swivel
nut on the cover, (Break the plastic film on it). Make sure you use a cable within the correct
specifications as shown in the table below.
Remove a length of 40mm of the cable jacket and strip the wire insulation to a length of 10-12mm.
Figure 4.9
Step 3. Fasten the AC cables onto the terminals on the inverter. Please make sure the correct
polarity. Ensure that the correct conductor is fastened (0.7 N.m. torque) to the correct terminal.
Describe
Wire diameter 6~12mm
6mm²
12mm
Traverse cross sectional area
Exposure Length
Numerical value
40 mm
10 mm - 12 mm
PE
L
N
Step 4. Lock the 4*M4 screws and fix the cover onto the inverter.
M4 cross screws
Figure 4.10
Figure 4.11
DO CT/Meter WIFI
CAN DRM COM
4.5 CT Installation
RAI-3K-48ES-5G inverter requires a CT to measure the power flow to/from the grid.
This will provide information to the RAI-3K-48ES-5G inverter about when to charge or discharge
the battery thus maximizing the self-consumption rate.

Step 1. Take out the CAN cable (terminal marks ‘CAN' on one end and 'to Battery' on the other end).
Step 2. Unscrew the swivel nut from CAN port.
Step 3.Insert the RJ45 terminal with CAN label into the CAN port, then fasten the swivel nut.
Step 4. Connect the other end to the battery.
NOTE:
For CAN cable pin 4 (blue) and pin 5 (white-blue) are used for the
communication.
DO CT/M ete r
CAN DRM
Figure 4.13 2-pin CT cable
4.6 Assemble Other Cables
1. Battery CAN communication cable
Figure 4.14
NOTE:
The CAN cable enables the communication between the inverter and the Li-ion
battery from BYD, PYLON, etc.
Please check for latest model before installation.compatibility
CAN
4. Installation4. Installation
.15..14.
Step 2. Use the network wire stripper to strip the insulation layer of the communication
cable. According to the standard line sequence of figure 4.16 connect the wire to the plug
of RJ45, and then use a network cable crimping tool to make it tight.
Correspondence between the cables
and the stitches of plug, Pin5 and Pin6
of RJ45 terminal is used for the logic
interface, other Pins are reserved.
Pin 1: Reserved; Pin 2: Reserved
Pin 3: Reserved; Pin 4: Reserved
Pin 5: Switch_input1; Pin 6: Switch_input2
Pin 7: Reserved; Pin 8: Reserved
1--8
RJ45 plug
Rj45terminal
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
DRM(logic interface)
Switch_input1 Switch_input2
Figure 4.16 Strip the insulation layer and connect to RJ45 plug
Step 3. Connect R J45 to DRM port (l ) . ogic interface
NOTE:
To use this function, please contact the manufacturer.
2. Logic interface communication cable (Only for UK)
Logic interface is required by G98 and G99 standard that can be operated by a simple
switch or contactor. When the switch is open circuited the inverter can operated normally.
When the switch is closed, the inverter will reduce it’s output power to zero within 5s.
Pin5 and Pin6 of RJ45 terminal is used for the logic interface connection.
Please follow steps below to assemble DRM RJ45 connector.
Step 1. Insert the network cable into the communication connection terminal of RJ45.
DO CT/M ete r
CAN DRM
Figure 4.15 RJ45 communication connection terminals

.17..16.
4. Installation4. Installation
Description
The inverter can detect DC power.
No DC power.
The inverter is fully operational.
The inverter has stopped operating.
The inverter is initializing.
No fault condition detected.
Status
ON
OFF
ON
OFF
OFF
FLASHING
Light
POWER
OPERATION
ALARM
4.7 LED Indicates
There are three LED indicators on the Beta AC Coupled inverter (Red, Green, and Orange)
which indicate the working status of the inverter.
Figure 4.17 Status indicator lights
FLASHING Fault condition is detected.
RAI series inverter can be controlled by LCD or APP
(Beta TechView). For IOS system, please go to AppStore
to search for "Beta TechView", then download and install
it. For Android system, please go to Google Play to search
for "Beta TechView", then download and install it. Besides,
it can be also installed by scanning the QR code on the
back cover of this manual.
To use the APP to control the inverter, you need to make
sure the inverter is operating and then use your mobile
device to connect the WiFi signal of the inverter
(Factory defaults is Beta - inverter SN, and initial
password is solis100. If any questions,
please refer to Beta TechView quick guide).
Then, you can enter the APP to view the information
and change the settings of the inverter.
4.8 Beta TechView Illustration
Figure 4.18