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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31
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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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36
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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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36
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9. Appendix
38
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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

.19..18.
5. Operation
Figure 5.1 Operation overview
5 sec
Start
DisCharge P: 00.0W
01-01-2019 12:04
Charge P: 00.0W
01-01-2019 12:04
Information
Settings
Advanced Info.
Advanced settings
UP/DOWN
UP/DOWN
UP/DOWN
UP/DOWN or
auto-scroll
(10 sec)
Press the ENTER
key to access the
main menu.
Pressing the
ESC key
calls back the
previous menu.
Main Menu
There are four submenus in the Main Menu (see Figure 5.1):
1. Information
2. Settings
3. Advanced Info.
4. Advanced Settings
During normal operation, the display alternately shows the power and the operation
status with each screen lasting for 10 seconds (see Figure 5.1). Screens can also be
scrolled manually by pressing the UP and DOWN keys. Press the ENTER key to
access to the Main Menu.
5.1 Main Menu
5.2 Information
1. General Info 2. Syetem Info 3. Energy Records 4. BMS Info 5. CT Info
The Beta AC-Coupled Inverter main menu provides access to operational data and
information. The information is displayed by selecting "Information" from the menu
and then by scrolling up or down.
There are 5 submenus in the Information :
5. Operation
Figure 5.2 Information list (General Info)
Display Description
Inverter SN
00000000000000
Device/Battery/Backup
Waiting
Series number of the inverter.
Device/Battery/Backup Status.
Working mode.
Battery wakeup setting.
DRM No.
Model number of the inverter.
Firmware version of the inverter.
Grid:
Off Grid Mode
Wakeup:
NO
DRMNO.:
08
Model.:
00
SoftVer.:
500000
Figure 5.3 Information list (System Info)
Display Description
Grid Power:
+00.0kW Grid Power
Grid Voltage
Grid Frequency
Battery Voltage
Backup Voltage
Battery Charge Power
Battery Discharge Power
Grid Frequency:
00.00Hz
Battery Voltage:
000.0V
Charge P:
00.0kW
DisCharge P:
00.0kW
Grid Voltage:
000.0V
Backup Voltage:
000.0V

.20. .21.
5. Operation 5. Operation
Figure 5.4 Information list (Energy Records)
Display Description
BattChgE Total:
0000000kWh Total battery charge energy
Today battery charge energy
Yesterday battery charge energy
Total battery discharge energy
Today battery discharge energy
Yesterday battery discharge energy
BattChgE Lastday:
000.0kWh
BattDisChgE Total:
0000000kWh
BattDisChgE Lastday:
000.0kWh
BattChgE Today:
000.0kWh
BattDisChgE Today:
000.0kWh
GridGetE Total:
0000000kWh Total energy imported from grid
Today energy imported from grid
Yesterday energy imported from grid
Total energy exported to grid
Today energy exported to grid
Yesterday energy exported to grid
Total load consumption
Today load consumption
Yesterday load consumption
GridGetE Today:
000.0kWh
GridGetE Lastday:
000.0kWh
Grid SendE Today:
000.0kWh
Grid SendE Lastday:
000.0kWh
LoadE Total:
0000000kWh
LoadE Today:
000.0kWh
LoadE Lastday:
0000000kWh
Grid SendE Total:
0000000kWh
Figure 5.5 Information list (BMS Info)
Display Description
Battery V: 00.00V
Battery I: +00.0A Battery voltage and current
Battery charge/discharge current limitation
SOC and SOH of battery
BMS communication status
BMS Status:
CAN Fail
Charge Lmt: 000.0A
Discharge Lmt: 000.0A
SOC Value: 000%
SOH Value: 000%
Figure 5.6 Information list (CT Info)
Display Description
CT current
CT power
CT Current:
00.00A
CT Power:
+000000W
The following submenus are displayed when the Settings menu is selected:
1. Set Time/Date
2. Set Address
This function allows time and date setting. When this function is selected, the LCD will
display as shown in Figure 5.7.
NEXT=<ENT> OK=<ESC>
01-01-2019 16:37
Figure 5.7 Set Time
5.3 Settings
5.3.1 Set Time/Date

This function is used for set the address when mutiple inverters are connected to single
monitor.
The address number can be assigned from “01”to “99”. The default address number is “01”.
5.3.2 Set Address
5. Operation 5. Operation
YES=<ENT> NO=<ESC>
Set Address: 01
Figure 5.8 Set address
.22. .23.
NOTE:
To access to this area is for fully qualified and accredited technicians only.
Enter menu “Advanced Info.” and “Advanced settings” （need password）.
YES=<ENT> NO=<ESC>
Password:0000
Figure 5.9 Enter password
5.4 Advanced Info
Select “Advanced Info.” from the Main Menu.
The screen will require the password as below:
After entering the correct password the Main Menu will display a screen and be able to
access to the following information.
1. Alarm Message 2.Warning Message 3. Running Status
4.Communication Data 5.Yield Profile
The default password is “0010". Please press “down” to move the cursor, press “up” to
select the number.
5.4.1 Alarm Message
The display shows the latest alarm messages. 100
Alarm000: ACOvercurrent
T: 02-21 22:15 D: 0000
Figure 5.10 Alarm message
The display shows the latest warning messages. 100
5.4.2 Warning Message
Msg000:
T: 00-00 00:00 D:0000
Figure 5.11 Warning message
5.4.3 Running Status
This function is for maintenance person to get running message.
General status includes: DC bus voltage, power factor, power limit, inverter temperature,
grid standard
Advanced status includes: Control word status, Grid filter No.,Ground voltage, etc.
5.4.4 Communication Data
The screen shows the internal data of the Inverter, which is for service technicians only.
01-05: 00 00 00 00 00
06-10: 00 00 00 00 00
Figure 5.13 Communication data
General Status
Advanced Status
Figure 5.12 Running status
→
5.4.5 Yield Profile
The section shows the energy records of the battery, grid, load and backup port.
Energy Battery
Energy Grid
Figure 5.14 Yield profile
→

5. Operation 5. Operation
.24. .25.
5.5 Advanced Settings
NOTE:
To access to this area is for fully qualified and accredited technicians only.
Please follow 5.4 to enter password to access this menu.
5.5.1 Selecting Standard
This function is used for select the grid's reference standard.
YES=<ENT> NO=<ESC>
Standard: G98
Figure 5.15 Selecting standard
Select Advanced Settings from the Main Menu to access the following options:
1. Select Standard 2. Grid Switches 3. Battery Control 4. Backup Control
5. Storage Energy Set 6. STD. Mode Settings 7. Software Update
8. Export Power Set 9.Calibrate 10. Reset Password 11. Restart HMI
NOTE:
This function is for technicians use only.
Selecting the “User-Def” menu will access to the following submenu.
Figure 5.16
OV-G-V1: 260V
OV-G-V1-T: 1S
NOTE:
The " User-Def" function can be only used by the service engineer and
must be allowed by the local energy supplier.
→
OV-G-V1: 240---270V OV-G-F1: 50.2-53Hz(60.2-63Hz)
OV-G-V1-T: 0.1---9S OV-G-F1-T: 0.1---9S
OV-G-V2: 240---300V OV-G-F2: 50.2-53Hz(60.2-63Hz)
OV-G-V2-T: 0.1---1S OV-G-F2-T: 0.1---9S
UN-G-V1: 170---210V UN-G-F1: 47-49.5Hz(57-59.5Hz)
UN-G-V1-T: 0.1---9S UN-G-F1-T: 0.1---9S
UN-G-V2: 110---210V UN-G-F2: 47-49Hz(57-59.5Hz)
UN-G-V2-T: 0.1---1S UN-G-F2-T: 0.1---9S
Startup-T:10---600S
Restore-T:10---600S
Below is the setting range for “User-Def”. Using this function, the limits can be changed
manually.
5.5.2 Grid Switches
This function is used for start up or stop working.
Grid ON
Grid OFF
Figure 5.17 Set grid ON/OFF
→
5.5.3 Battery Control
This function is used for set the battery.
Battery Select
Figure 5.18 Battery control
→

There are some options about battery modules. When some battery module is selected,
pre-settings will be imported, user doesn't need to configure the battery parameters
except for over discharge SOC and forced charge SOC.
5.5.3.1 Battery Select
Battery Select:
PYLON
Figure 5.19 Battery select
The OverDischg SOC can be set from 10% to 40%.
The ForceChagre SOC can be set from 5% to OverDischg SOC.
Overdischg SOC:
029%
Figure 5.20 Overdischg SOC
5. Operation 5. Operation
5.5.4 Backup Control
Backup ON/OFF
Backup Settings
Figure 5.21 Backup control
This function is used for set the backup port.
This switch is to enable or disable the backup port of the inverter.
5.5.4.1 Backup ON/OFF
Set Backup:
OFF
Figure 5.22 Backup ON/OFF
Set the voltage/frequency of the backup port.
Enable or disable the voltage droop.
5.5.4.1 Backup Settings
Backup Voltage:
230.0V
Figure 5.23 Backup settings
5.5.5 Storage Energy Set
Mode:
Off Grid Mode
Figure 5.24 Storage energy set
It includes “Stg mode select” which defines different working logic of the hybrid inverter.
There are two options in the Stg Mode Select: Time charging and Off-grid.
Another default mode is Auto mode (Maximize the self-consumption rate) which is
not shown in the setting. Once the inverter is started, it is working in the Auto mode.
If want to switch back to Auto mode, simply turn off the other modes, then it is
automatically operating in the Auto mode, even though it is NOT shown on the screen.
The user can set the time periods, for when the inverter charges and discharges the batteries,
using Time Charging Mode.
In installations where no grid is present, it is recommended to use Off-Grid mode.
.26. .27.
NOTE:
Available Batteries with built-in protocol: Pylon, BYD.

5.5.6 STD. Mode Settings
There are 5 setting under STD. Mode settings.
1. Working mode 2. Power Rate limit 3. Freq. Derate set 4. 10mins OV-G-V set.
5.Initial Settings
This function is applicable by maintenance personnel only, wrong
operation will prevent the inverter from working properly.
When select G98 or G99 standard to use the logic interface function, please follow below
settings to enable the DRM. DRM default setting is “OFF” , if DRM set “ON”, but the logic
interface un-connected to the switch or the switch is open, the inverter HMI will display
“Limit by DRM” and the inverter output power will be limited to zero.
1. Select Initial Settings
2. Select DRM and set it “ON”
5.5.6.1 Enable logic interface settings
5.5.7 Software Update
There are 2 settings under Software Update.
1. HMI Update 2. DSP Update
This function is applicable by maintenance personnel only, wrong
operation will prevent the inverter from working properly.
5.5.8 Export Power Set
Select EPMSettings from the Main Menu to access the following options:
1. Meter/CT Select 2. EPM ON/OFF 3. Backflow Power
5.5.8.1 Meter/CT Select
There are 2 settings in this menu as below:
1. CT 2. Meter
5.5.8.2 EPM ON/OFF
There are 2 settings in this menu as below:
1. ON 2. OFF
5.5.8.3 Backflow Power
This submenu is used for set allowedpowerthatinvertercansendtogrid.
YES=<ENT> NO=<ESC>
P_Backflow:-0001W
Figure 5.25 Backflow power
5. Operation 5. Operation
5.5.9 Calibrate
Maintenance or replacement could clear or cause a different value of total energy. This
function allows user to revise the value of total energy to the same value as before. If the
monitoring website is used the data, it will be synchronous with this setting automatically.
Figure 5.26 Calibrate
YES=<ENT> NO=<ESC>
Energy:0000000kWh
.28. .29.
YES=<ENT> NO=<ESC>
Password: 0000
5.5.10 Reset Password
This function is used for set the new password for menu “Advanced info.” and “Advanced
information” .
Figure 5.27 Reset password
Enter the right password before set new password. Press the DOWN key to move the
cursor. Press the UP key to revise the value. Press the ENTER key to execute the setting.
Press the ESC key to return to the previous menu.

6. Commissioning
6.1 Preparation of Commissioning
Ensure all the devices are accessible for operation, maintenance and service.
Check and confirm that the inverter is firmly installed.
Space for ventilation is sufficient for one inverter or multiple inverters.
Nothing is left on the top of the inverter or battery module.
Inverter and accessories are correctly connected.
Cables are routed in safe place or protected against mechanical damage.
Warning signs and labels are suitably affixed and durable.
6.2 Commissioning Procedure
If all the items mentioned above meet the requirements, proceed as follows to start up the
inverter for the first time.
6.2.1 Switch on the AC-backup and AC-grid.
6.2.2 Follow the picture below to select grid standard.
6.2.3 Switch on the DC circuit breaker between inverter and battery.
6.2.4 (Optional) When the battery equipped is Pylon Li-ion Battery,
or BYD battery, turn on the switch on the battery manually.
6.2.5 The relay will make 'clicking' sounds and it will take a short-time
to work automatically.
6.2.7 The system will work properly.
YES=<ENT> NO=<ESC>
Standard:G98
5. Operation
5.5.11 Restart HMI
ThefunctionisusedforrestarttheHMI.
This function is applicable by maintenance personnel only, wrong
operation will prevent the inverter from working properly.
.30. .31.

.32.
7. Troubleshooting
Note:
Never use any solvents, abrasives or corrosive materials to clean the inverter.
CAUTION:
Do not touch the surface when the inverter is operating. Some parts may be hot
and cause burns. Turn OFF the inverter (refer to Section 6.2) and let it cool down
before you do any maintenance or cleaning of inverter.
The LCD and the LED status indicator lights can be cleaned with cloth if they are too dirty
to be read.
Beta AC-Coupled inverter does not require any regular maintenance. However, cleaning the heatsink
will help inverter dissipating heat and increase the lifetime of inverter. The dirt on the inverter can be
cleaned with a soft brush.
The inverter has been designed in accordance with international grid tied standards for
safety, and electromagnetic compatibility requirements. Before delivering to the customer
the inverter has been subjected to several test to ensure its optimal operation and reliability.
In case of a failure the LCD screen will display an alarm message. In this case the inverter
may stop feeding energy into the grid. The alarm descriptions and their corresponding alarm
messages are listed in Table 7.1:
7. Troubleshooting
Alarm Message Failure description Solution
UN-G-F
NO-Grid
OV-BUS
UN-BU S
DC-IN TF.
IGFOL-F
OV-G-I
AC Transient over
current
DCInj-FAULT
IGBT-OV-I
OV-TEM
RelayChk-FAIL
GRID-INTF02
IG-AD
OV-IgTr
OV-Vbatt-H
Grid Underfrequency
No Grid
DC Bus overvoltage
DC Bus voltage sampling
Error
Battery Overcurrent
Grid Current Tracking Error
Grid Overcurrent
AC Transient Overcurrent
Over DC injection
IGBT Overcurrent
Internal Over Temperature
Relay Fault
Grid Interference 02
Grid Current Sampling Error
Grid Transient Overcurrent
Battery Hardware Overcurrent
OV-G-F Grid Overfrequency
UN-G-V Grid Undervoltage
OV-G-V Grid Overvoltage Check if the grid is correctly connected,
wait for the grid to be normal.
.33.
Check if the grid is correctly connected,
wait for the grid to be normal.
Check if the grid is correctly connected,
wait for the grid to be normal.
Check if the grid is correctly connected,
wait for the grid to be normal.
Check if the grid is correctly connected,
wait for the grid to be normal.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Check if the backup port is shorted,
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Check if the inverter installation meets the
requirements listed in the manual,
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Check if the battery is correctly connected
or the battery contactor is disconnected,
Restart the battery, Restart the inverter,
if the fault still exists, contact Beta after-sale
service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.

.34. .35.
7. Troubleshooting 7. Troubleshooting
NOTE:
If the inverter displays any alarm message as listed in Table 7.1; please
turn off the inverter and wait for 5 minutes before restarting it . If the
failure persists, please contact your local distributor or the service center.
1. Serial number of Beta Inverter;
2. The distributor/dealer of Beta Inverter (if available);
3. Installation date.
4. The description of problem (i.e. the alarm message displayed on the LCD and the status
of the LED status indicator lights. Other readings obtained from the Information
submenu (refer to Section 6.2) will also be helpful.);
5. The system configuration.
6. Your contact details.
Please keep ready with you the following information before contacting us.
Table 7.1 Fault message and description
Alarm Message Failure description Solution
DSP-B-FAULT
NO-Battery
Slave DSP Check Error
Battery Not Connected
UN-Vbatt Battery Undervoltage
OV-Vbatt Battery Overvoltage
OV-ILLC LLC Hardware Overcurrent Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Check if the battery overvoltage setting is
reasonable, if the battery reaches its end
of life.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Check if the battery is correctly connected
or the battery contactor is disconnected,
Restart the battery.
Check if the battery overvoltage setting is
reasonable, if the battery reaches its end
of life.
OV-Vbackup
Over-Load
CT-Fail
MET_Comm_FAIL
Inverting Overvoltage
Backup Overload
CT Installed Fail
Meter COM Fail
Battery CAN Fail
DSP COM Fail
Battery BMS Alarm
Wrong Battery Model
Restart the inverter, if the fault still exists,
contact Beta after-sale Service.
Check if the backup port is shorted or the
load is larger than the limitation.
Check if CT is correctly installed or the cables
are broken/loosen .
Check if the CT/Meter setting is correct or
the cables are broken/loosen.
Check if the CAN cable is correctly connected
or the cables are broken/loosen.
Restart the inverter, if the fault still exists,
contact Beta after-sale service.
Retart the battery, if fault still exists, please
contact battery manufacturer or installer.
Make sure the actual battery model matches
the selection on inverter LCD.
CAN_Comm_FAIL
DSP_Comm_FAIL
Alarm-BMS
BatName-FAIL

.36. .37.
8. Specifications
Max. apparent AC power[VA]
Rated grid voltage[V]
Norminal AC current[A]
Displacement power factor
Connection phase
Battery voltage range[V]
Max.charge/discharge current[A]
Battery reverse protection
Battery over and under voltage protection
Short circuit protection
Output over current protection
Output over voltage protection
temperature protection
Norminal AC power[VA]
Communication interfaces
Battery Type
Technical Data RAI-3K-48ES-5G
3000
13
0.8 leading to 0.8 lagging
Single
60
CAN
Lithium-ion
Yes
230
40-60
Nominal battery voltage[V] 48
1.5*Prated，10s;1.2*Prated，30s
AC Output
Rated grid Frequency[Hz] 50/60
THDi, rated power <3%
Battery
Protection
Yes
Yes
Yes
Yes
Yes
8. Specifications
Rated power[VA]
Rated voltage[V],Frequency[Hz]
AC Output(Back-up)
Ingress protection
Operating temperature range
Humidity
IP65
0..100%, No Condensing
Environment Limit
Altitude[m]
Noise emission(typical)[dB]
2000
<35
System Parameters
Demensions(WxHxD) [mm]
Weight [kg]
Standby Losses[W]
Cooling concept
Topology
Communication
Display
Dry port
Standard warranty [year]
Cetification
403*525*170
15
<8
Natural
High frequency isolation
WiFi, RS485, CAN, DRM (logic interface)
LCD & APP
2
5 years (Optional:extension to 10 years)
IEC62477-1, IEC61000-6-1/-2/-3/-4, VDE4105:2018,
VDE0126, IEC62109, IEC62040.1, AS4777.2, G98, G99
Switch time[s]
Total harmonic distortion
(THDv, @linear Load)
<3
<3%
Rated current[A]
Peak output power[W], Duration[s] 1.5*Prated, 10s
13
230, 50/60
3000
-25℃~60℃
The backfeed current to battery[A] 0
The inrush current[A]
The maximum output fault current[A]
The maximum output
overcurrent protection[A]
28
20
40
Efficiency
Max. Battery charge efficiency
Max. Battery discharge efficiency
94.0%
94.5%