LUXPOWER SNA-US 12000 Hybrid Off Grid Inverter User Manual
- July 30, 2024
- LUXPOWER
Table of Contents
SNA-US 12000 Hybrid Off Grid Inverter
Specifications
-
Model: SNA US 12K
-
Version: UM-SNAUS02001
-
Features: Wifi/4G, Solar Panel, LuxPower APP
-
Interfaces: PV Interface, GRID Interface, GEN Interface, LOAD
Breaker, SMART LOAD Breaker -
Packing List: Offgrid inverter, User Manual, Expansion Screw
and Tube, Mounting Template, Wi-Fi Module, Battery communication
cable, Parallel communication cable
Product Usage Instructions
1. Installation
Before installation, inspect the unit and ensure nothing is
damaged. Follow the mounting template for proper placement.
2. Operation
Ensure the inverter is connected to the appropriate power
sources and loads as per the interface markings.
3. Troubleshooting
If you encounter any issues with the inverter, refer to the
Troubleshooting & Error List section in the user manual.
FAQ
Q: What should I do if the inverter is not powering on?
A: Check the power connections and ensure the power switch is
turned on. If the issue persists, consult the Troubleshooting
section of the user manual.
Q: How do I connect the inverter to my smart load?
A: Use the SMART LOAD Breaker interface on the inverter and
follow the connection instructions provided in the user manual.
Off-grid Inverter User Manual
SNA US 12K
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Battery Breaker
L1 L2 L1 L2 Smart Load Load
Version: UM-SNAUS02001
User Manual
Copyright© 2024 Lux Power Technology Co., Ltd. All Rights Reserved. This
manual, protected by the copyright and intellectual property rights of Lux
Power Technology, may not be modified, copied, or reproduced without prior
written permission. Brands and trademarks mentioned belong to their respective
owners. Read carefully for product reliability and warranty eligibility. For
warranty details, refer to Lux Power Technology Limited Warranty. Intended for
professional service providers; no statements constitute an express or implied
warranty. Descriptions may contain predictive statements; differences may
occur. Provided for reference, subject to change without notice by Lux Power
Technology.
Website
www.luxpowertek.com
YouTube
Scan to download
Table Of Contents
Information on this Manual Validity Scope Target Group Safety Instructions 1.
Brief Introduction 1.1 Features of the inverter 1.2 Interface of the inverter
1.3 Packing list 2. Installation 2.1 Preparation 2.2 Mounting the Unit 2.3
Battery Connection 2.3.1 Battery Power Cable Connection 2.3.2 Lithium Battery
Connection 2.4 AC Input/Output Connection 2.5 PV Connection 2.6 Generator
Connection 2.7 System Connection 2.8 Dry Contact Signal control 2.9 Parallel
function 2.10 Power ON/OFF 2.11 Rapid Shutdown system Installation(RSD
Transmitter) 3. Working Modes 3.1 Offgrid modes introduction 3.2 Working modes
related setting description 4. LCD Display and settings 4.1 RGB Display
User Manual
1 1 1 1 1 2 2 3 4 6 6 8 9 9 9 10 11 12 13 14 14 16 17 17 17 19 21 21
4.2 LCD Display 4.3 Inverter Status Display 4.4 LCD Settings 5. About LCD Settings check the operation 6. Monitor System for Offgrid 7. Specifications 8. Trouble Shooting & Error List
User Manual
21 23 24 36 37 38 42
Revision History
Version
UM-SNAUS02001
Date 2024.06.25
Description First official release.
User Manual
Information on this Manual
Validity
This manual is valid for the following devices: SNA-US 12000
Scope
This manual provides the installation, operation and troubleshooting of this
unit, please read this manual carefully before installations and operations.
Target Group
For qualified persons and end users. Qualified persons and end users must have
the following skills: Knowledge about this unit operation Training in deal
with the security issues associated with installations and electrical safety
Training in the installation and commissioning of electrical devices and
installations Knowledge of the applicable local standards and directives
Safety Instructions
WARNING: This chapter contains important safety and operating instructions.
Read and keep this manual for future reference.
All the operation and connection need to be operated by qualified persons.
Before using the unit, read all instructions and cautionary marking on the
unit. Any damage caused by inappropriate operation is not warranted by
Luxpower. All the electrical installation must comply with the local
electrical safety standards. Do not disassemble the unit. Take it to a
qualified service center when service or repair is required, incorrect re-
assembly may result in a risk of electric shock or fire. Do not open inverter
cover or change any components without Luxpower’s authorization, otherwise the
warranty commitment for the inverter will be invalid. To reduce risk of
electric shock, disconnect all wirings before attempting any maintenance or
cleaning, turning off the unit will not reduce this risk. CAUTION-To reduce
risk of injury, charge only deep-cycle lead-acid type rechargeable batteries
and lithium batteries, other types of batteries may burst, causing personal
injury and damage. NEVER charge a frozen battery. For optimum operation of
this unit, please follow required spec to select appropriate cable size and
breaker. Please strictly follow installation procedure when you want to
disconnect AC or DC terminals, please refer to INSTALLATION section of this
manual for the details. GROUNDING INSTRUCTIONS -This unit should be connected
to a permanent grounded wiring system, be sure to comply with local
requirements and regulation to install this inverter. NEVER cause AC output
and DC input short circuited. Do not connect to the mains when DC input short
circuits.
1
1. Brief Introduction
1.1 Features of the inverter
Wifi/4G
Solar Panel
User Manual
Internet
LuxPower APP
User name Pass word
Remember username
Auto login
LOGIN
Forget password?
or
REGISTER DONGLE CONNECT PRODUCT WARRANTY LOCAL CONNECT DOWNLOAD FIRMWARE Version 3.2.3 – Privacy Policy
Luxpower Server
Utility Grid
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Battery Breaker
L1 L2 L1 L2
Smart Load Load
Home Loads
Generator
Battery
SNA series is a multifunctional, high frequency pure sine wave Offgrid
inverter solar inverter, features: Applicable for pure off grid inverter /
backup power / self-consumption / ongrid situation Integrated with 2 MPPT
solar charge controllers, MPPT ranges 120V~385V Each PV input MPPT supports up
to 12kW, with a total input power of 24kW when both PV inputs are used, and a
power factor of 1. Be able to run with or without battery in ongrid and
offgrid mode With separated generator input interface, able to control
generator remotely With integrated advanced parallel function, up to 6pcs max
paralleling Support CAN/RS485 for Li-ion battery BMS communication WIFI/ GPRS
remote monitoring, setting and firmware update, support website, free
IOS/Android APP
2
1.2 Interface of the inverter
User Manual
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OFF
ON OFF ON POWER
SC1 50 49
BAT+ BAT-
ON
BAT.NTC
M3.COM CT1 CT2
CN10
CN3
CN2
ON
BAT.COM Parallel
L1 L2
Smart Load
L1 L2 Load
L1 L2 Gen
L1 L2 Grid
1+ 1+ 1- 1- 2+ 2+ 2- 2PV INPUT
GND 12V GND PSD.SW COM1 NO1 NC1 COM2 NO2 NC2
N
PE
PV Interface
OFF ON EPS OUTPUT
PV Switch
BAT+ Breaker
Power on/off switch
GRID Interface GEN Interface LOAD Breaker SMART LOAD Breaker
WiFi/GPRS EPS on/off switch
BAT.NTC M3.COM
CT1 CT2
Parallel communication Resistor switch
BAT.COM Parallel
Parallel communication ports Battery CAN /RS485
NC2
NO2
COM1 NO1 NC1 COM2
PSD.SW
GND
12V
GND
Dry contacts
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User Manual
1.3 Packing List
Before installation, please inspect the unit. Be sure that nothing inside the
package is damaged. You should have received the following items in the
package:
Offgrid inverter X1
Off-grid Inverter User Manual
SNA US 12K
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Battery Breaker
L1 L2 L1 L2 Smart Load Load
Version: UM-SNAUS02001
User Manual X1
Expansion Screw and Tube X6
Cross Head Screw M8(6PCS)
M3*10(4PCS)
Mounting Template
Wi-Fi Module X1
Battery communication cable L=2mx1(Orange)
Parallel communication cable L=2mx1(Grey)
Storing the Inverter
The inverter must be stored appropriately if not installed immediately, refer
to below figure.
! CAUTION
a) The inverter and its components must be stored in its original packaging.
b) The storage temperature should be within -13~140 F(-25~60) and humidity
within 0~85%. c) The packing should be upright and maximum stacked layers is 6
. d) Do not directly exposed the inverter and its packaging to sunshine,
raindrops and keep away
from corrosion.
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User Manual
Te m p e ra t u re < 6 0
Height<6.6ft Height<2m
Humidity<85%
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User Manual
2. Installation
2.1 Preparation
The system connection is as below:
600V, 2*4AWG
Grid 600V, 24AWG
Load 600V, 24AWG
Smart Load 600V, 2*4AWG
B AT
GEN PV1 PV2
L1 L2 PE
L1 L2
L1 L2
L1 L2 N
600V, 4*8AWG
QF1 QF2
Grid PE
LOAD1 LOAD2
G Generater
QF 1 In 100A QF 2 In 63A QF 1 is Double interlock switch or Dual Power Switch In 100A
MAX: 250A 100V, 21/ 0AWG or 42AWG
Please prepare the breakers and cables in advanced before installation.
1. Battery connection: For safety operation and regulation compliance, it’s requested to install a separate DC over-current protector or disconnect device between battery and inverter. The recommend battery capacity is 200AH-400AH, the spec of DC breaker is 300A/80V. Recommended battery cable and terminal size:
Model
Maximum Battery Amperage capacity
Wire Size
Ring Terminal Cable Dimensions Torque value mm2 d2(mm) L (mm)
SNA-US 12000 250A 400AH 1/0AWG 53
8.4 38.8 11-12 Nm
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User Manual
2. AC connection: Please install a separate AC breaker between inverter and AC input power source, inverter and AC output load. This will ensure the inverter can be securely disconnected during maintenance and fully protected from over current of AC input. Recommended AC input/ AC output /GEN cable size for each inverter.
Model
Gauge
AC INPUT(GRID side)
GEN INPUT(GEN side) SNA-US 12000
AC OUTPUT(LOAD side)
AC OUTPUT(SMART LOAD side)
Cable (mm2)
4AWG
21
6AWG
13
4AWG
21
6AWG
13
Torque Value 11-12 Nm 11-12 Nm 11-12 Nm 11-12 Nm
3. PV Connection: Please install separately a DC circuit breaker between inverter and PV modules. The spec of DC breaker is 600V/40A. It’s very important for system safety and efficient operation to use appropriate cable for PV module connection. To reduce risk of injury, please use the proper recommended cable size as below:
Model SNA-US 12000
Gauge 8AWG
Cable (mm2) 8
4. Before connecting all wiring, please take off bottom cover by removing 4 screws as shown below.
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User Manual
2.2 Mounting the Unit
NOTICE Consider the following points before selecting where to install: Mount
on a solid surface Do not mount the inverter on flammable construction
materials. For proper air circulation to dissipate heat, allow a clearance of
approx. 30 cm to the side and approx. 50 cm above and below the unit. The
ambient temperature should be between 0°C and 45°C to ensure optimal
operation. The recommended installation position is to be adhered to the wall
vertically.
Steps to mounting the unit
Step1. Use the wall-mounting bracket as the template to mark the position of
the 6 holes, then drill 8 mm holes and make sure the depth of the holes is
deeper than 50mm. Step2. Install the expansion tubes into the holes and tight
them, then use the expansion screws (packaged together with the expansion
tubes) to install and fix the wall-mounting bracket on the wall.
Step3. Install the inverter on the wall-mounting bracket and lock the inverter
using the security screws.
344mm
800mm
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Battery Breaker
L1 L2 L1 L2
Smart Load Load
500mm
UP
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Down
Battery Breaker
L1 L2 L1 L2
Smart Load Load
200mm
UP
Return
Enter
Down
Battery Breaker
L1 L2 L1 L2
Smart Load Load
200mm
UP
Return
Enter
Down
Battery Breaker
L1 L2 L1 L2
Smart Load Load
500mm
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User Manual
2.3 Battery Connection 2.3.1 Battery Power Cable Connection
Note: for lead acid battery, the recommended charge current is 0.1-0.25C( C to
battery capacity)
1. Please follow below steps to implement battery connection: 2. Assemble
battery ring terminal based on recommended battery cable and terminal size. 3.
Connect all battery packs as units requires. It’s suggested to connect at
least 400Ah capacity battery for SNA-US 12000. 4. Insert the ring terminal of
battery cable flatly into battery connector of inverter and make sure the
bolts are tightened with torque of 11 -12Nm. Make sure polarity of the battery
is correctly connected and ring terminals are tightly screwed to the battery
terminals.
2.3.2 Lithium Battery Connection
If choosing lithium battery for SNA-US 12000, please make sure the battery BMS
is compatible with Luxpower inverter. Please check the compatible list in the
Luxpower website.
Please follow below steps to implement lithium battery connection:
1. Connect power cable between inverter and battery 2. Connect the CAN or
RS485 communication cable between inverter and battery. If you do not get the
communication cable from inverter manufacturer or battery manufacturer, please
make the cable according to the PIN definition 3. Lithium battery
configuration, in order to communicate with battery BMS, you should set the
battery type to “Li-ion” in Program “03” by LCD and choose the right battery
brand (for details, please check the LCD setting chapter), users can also
choose the battery type and brand by monitor system.
BAT.NTC M3.COM
CT1 CT2
ON
Blue Color Switch 12
Pin RS 485 port CAN port
1 2 3 4 5 6 /7 /8
RS 485B RS 485A
– – – – – – – – –
– – – – – – –
CA NH CA NL
– – –
BAT.COM Parallel
Inverter
Battery Pack
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User Manual
2.4 AC Input/Output Connection
! CAUTION – There are two terminal blocks with “GRID” and “LOAD” markings.
Please do NOT mis-connect input and output connectors. – Be sure to connect AC
wires with correct polarity. If L and N wires are connected reversely, it may
cause utility short-circuited when these inverters are worked in parallel
operation.
Please follow below steps to implement AC input/output connection: 1. Before
making AC input/output connection, be sure to open DC protector or
disconnected first. 2. Remove insulation sleeve 10mm for six conductors. And
shorten phase L and neutral conductor N 3 mm. 3. Insert AC input wires
according to polarities indicated on terminal block and tighten the terminal
screws. Be sure to connect PE protective conductor first. 4. Insert AC output
wires according to polarities indicated on terminal block and tighten terminal
screws. Be sure to connect PE protective conductor first. 5. Make sure the
wires are securely connected.
10 L1LINE (black)
L2LINE (red)
NNeutral (blue)
10
PEGround(green)
BAT+ BAT-
GND 12V GND PSD.SW COM1 NO1 NC1 COM2 NO2 NC2
BAT.NTC M3.COM
CT1 CT2
BAT.COM Parallel
L1 L2
Smart Load
L1 L2
Load
1+ 1+ 1- 1- 2+ 2+ 2- 2-
PV INPUT
L1 L2 L1 L2
Gen
Grid
N
PE
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User Manual
2.5 PV Connection
Please follow below steps to implement PV module connection: 1. Remove
insulation sleeve 10 mm for positive and negative conductors. 2. Check correct
polarity of connection cable from PV modules and PV input connectors. 3.
Connect positive pole (+) of connection cable to positive pole (+) of PV input
connector. Connect negative pole (-) of connection cable to negative pole (-)
of PV input connector. 4. Make sure the wires are securely connected.
BAT+ BAT-
GND 12V GND PSD.SW COM1 NO1 NC1 COM2 NO2 NC2
BAT.NTC M3.COM
CT1 CT2
BAT.COM Parallel
L1 L2
Smart Load
L1 L2
Load
1+ 1+ 1- 1- 2+ 2+ 2- 2-
L1 L2 L1 L2
Gen
Grid
PV INPUT
N
PE
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User Manual
2.6 Generator Connection
L1LINE (black) L2LINE (red) NNeutral (blue) 1. Before making Generator
connection, be sure to open DC protector or disconnected first. 2. Remove
insulation sleeve 10mm for 2 conductors. 3. Insert L1/L2 and N wires according
to polarities indicated on terminal block and tighten the terminal screws 4.
Make sure the wires are securely connected. 5. Finally, after connecting all
wiring, please put bottom cover back by screwing 4 screws as shown below.
BAT+ BAT-
GND 12V GND PSD.SW COM1 NO1 NC1 COM2 NO2 NC2
BAT.NTC M3.COM
CT1 CT2
BAT.COM Parallel
L1 L2 Smart Load
L1 L2 Load
1+ 1+ 1- 1- 2+ 2+ 2- 2-
PV INPUT
L1 L2 L1 L2
Gen
Grid
N
PE
All lux units can work with generator. Users can connect the generator output to Offgrid inverters. GEN input terminal. The generator will be automatically started when battery voltage is lower than the cut-off value or there is charge request from BMS. When voltage is higher than AC charge setting value, it will stop the generator. Battery will get charged when the generator is turned on, and the generator is bypassed to AC output to take all loads .
12
2.7 System Connection
The system connection diagram is as below (for US version)
User Manual
PV Breakers
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Battery Breaker
L1 L2 L1 L2
Smart Load Load
Smart
BAT
Load EPS GEN Grid PV
PE N L1 L2 L1 L2 L1 L2 L1 L2
Generator Breaker
Gride Breaker
N PE
PE
Battery Breaker
Load Breaker Smart Load Breaker
UPS L o ad
Breakers selection for both DC and AC Integrated Battery Breaker Integrated LOAD Breaker Smart Load Breaker Integrated PV Breaker
80Vdc/300A 480Vac/100A
480V/63A 1500V/50A
The system will use AC first if there is both utility input and generator input.
The capacity of the generator is recommended
Number of the single parallel inverter
Capacity
Single inverter
15K W
2 parallel
30K W
It is supported to parallel 2~3pcs inverter with single phase in single phase parallel system to
charge battery with Generator! And it is depends on the load performance of the generator too.
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User Manual
2.8 Dry Contact Signal control
The Dry port (NO2, COM2) could be used to deliver signal to external device
when battery voltage reaches warning level. The GEN port (NO1, COM1) could be
used to wake-up the Generator and then the generator can charge the battery.
Dry port
NO2 COM2
GEN
NO1 COM1
Unit Status
Condition
Power Off Power On
Inverter is off and no output is powered.
Without Grid With Grid
Battery voltage/SOC < Generator Charge Start Voltage/SOC Battery voltage/SOC >
Generator Charge EndVoltage/SOC
Battery voltage/SOC < Generator Charge Start Voltage/SOC
Battery voltage/SOC > Generator Charge EndVoltage/SOC
NO2 & COM2
Open Close Open
Close Open
NO1 & COM1
Open Close Open Open Open
Notice: NO—Normal open
Dry Port Relay Maximum Specification: 250VAC 5A Gen Port Relay Maximum Specification: 250VAC 5A
2.9 Parallel function
SNA series inverter support up to 6 units to composed single phase parallel
system for parallel system setup Step1. Cable connection: the system
connection is as below: a. 12kW × 3 Parallel single-phase system installation
connection (3 @ 240V/120V)
! Cannot share PV input at any time!
Master inverter #1
BAT+ BAT-
LOAD GEN GRID PV+ PVPE N L1 L2 L1 L2 L1 L2
Utility Combiner Box
L1
L2
N
L1 L1
PE
L2 L2
L1
L2
Utility Meter
Kw.h
7 9 86 6
480r/km.h 10A
Inverter #2 BAT
LOAD GEN GRID PV+ PV-
PE N L1 L2 L1 L2 L1 L2
Inverter #3
–
BAT
LOAD GEN GRID PV+ PV-
PE N L1 L2 L1 L2 L1 L2
Load Combiner Box
L1
L2
N
L1 L1
PE
L2 L2
L1
L2
Manual Bypass Switch
Generator Combiner Box
L1
L2
L1 N
L2
PE
Panel
N
L1 L1
PE
L2 L2
L1
L2
Load
PE
N L1
Generator
L2
Please put the 2-bit CAN balancing resistor switch to ON status for the first and end inverter of the daisy chain loop.
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User Manual
b. 12kW × 3 Parallel three-phase system installation connection (3 @ 208V/120V)
! Cannot share PV input at any time!
Master inverter #1 Three inverters in parallel: Set as U-phase
BAT+ BAT-
LOAD GEN GRID PV+ PVPE N L1 L2 L1 L2 L1 L2
Utility Combiner Box
U VW
N
U
PE
W
V
Utility Meter
Kw.h
7 9 86 6
480r/km.h 10A
Inverter #2 BAT
Three inverters in parallel: Set as V-phase LOAD GEN GRID PV+ PV-
PE N L1 L2 L1 L2 L1 L2
Inverter #3
Three inverters in parallel: Set as W-phase
–
BAT
LOAD GEN GRID PV+ PV-
PE N L1 L2 L1 L2 L1 L2
Load Combiner Box
U VW
N
U
PE
W
V
Manual Bypass Switch
Generator Combiner Box
U VW
N
U
PE
W
V
U VW
N
PE
Panel
Load
PE
N U
Generator
V W
Please put the 2-bit CAN balancing resistor switch to ON status for the first and end inverter of the daisy chain loop.
Step2. Please put the CAN communication PIN to on status for the first and the end inverter
11 1 ON 3 0 12
No.1
00
1
ON
n 36
0 12
No.2
00 1 ON 0 12 3
No.n-1
11 1 ON
3 0 12
No.n
BAT COM
Parallel
4
BAT COM Parallel line1
The max parallel quantity is 6, so 2
Parallel
4
BAT COM Parallel line2
Parallel line(n to 1)
Parallel
4
BAT COM Parallel line(n-1 to n)
Parallel
4
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User Manual
T T
T T
Step3. Setup the monitor for the system, add all datalogs in one station.
Users can login to the visit User Center
interface of monitor system, Configuration->station->Plant Management->add
datalog to add the datalogs.
Stations
Dongles Devices Users Operation Record
Monitor
Data
+ Add Station
Configuration
Overview
Maintenance
Plant name 1 Genesis 2 Butler Home 3 Offic e 4 Cronje Home
Installer Elangeni Broomhead
End User Aspergo Install johnbut ler
cronje
Country South Africa South Africa South Africa South Africa
Timezone GMT+2 GMT+2 GMT+2 GMT+2
Asia
A English
Search by station name
Daylight saving time Create date
No
2019-03-14
No
2019-03-25
No
2019-06-03
No
2019-07-16
Action Station Management Station Management Station Management Station Management
Step4. Enable share battery for the system if the system share one battery bank, otherwise disable the shared battery function
Step5. Set the system as a parallel group in the monitor system
Stations Overview Device Overview
Monitor
Data
Station Name
Configuration
Overview
Maintenance
Asia
A English
Search by inverter SN
Serial number
1 2 3 4
Status
Solar Power Charge Power Discharge Power Load
Solar Yield
Normal 228 W
42 W
0 W
35 W
32 W
0 W
1 kW
129 W
0 W
79 W
48 W
0 W
182 W
215.3 kWh
0 W
158.7 kWh
1 kW
170.3 kWh
106 W
99 kWh
Battery Dischar Feed Energy ConsumptionEr Station name Parallel Action
39.6 kWh 21.1 kWh 49.9 kWh 85.6 kWh
0 kWh 0 kWh 0 kWh 0 kWh
551.2 kWh 160.5 kWh 434.5 kWh 257.1 kWh
Dragonview
A-1
Parallel
Dragonview
A-2
Parallel
Dragonview
A-3
Parallel
Dragonview
A-4
Parallel
For more detailed guidance for paralleling system, please visit https://www.luxpowertek.com/download/ And download the guidance
2.10 Power and LOAD ON/OFF
OFF ON EPS OUTPUT
ON POWER
OFF
ON
OFF
1. Power Switch: Control power supply for the unit 2. LOAD Output Switch: Use
to control the AC output After connection, please turn on both switch. Users
can turn off the LOAD output switch to turn off power supply in some emergency
case
16
2.11 Rapid Shutdown system Installation (RSD Transmitter)
CT1
CT2
User Manual
GND 12V GND PSD.SW COM1 NO1 NC1 COM2 NO2 NC2
BAT COM
Parallel
P 1 -RS485B BAT COM: Battery comm Port P2-RS485A Parallel: PCS parallel comm port P4—CANH 120: Paralle balance resistor P5—CANL Only used for first and last PCS
P1-RS485B P2-RS485
PV INPUT
Provide 12Vdc/1.5A output when inverter is on. Cut off supply 12Vdc when
Emergency stop switch is ON and SW is shorted.
3. Working modes
3.1 Offgrid inverter modes introduction:
Bypass Mode
PV Charge Bypass
AC is used to take the load
PV charge the battery while the AC power the load
17
BAT Grid off PV+BAT Grid off
PV Charge PV Charge+Grid off
AC Charge PV+AC charge
PV Grid off
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User Manual
Battery is used to take the load
PV+Battery power the load together
1. When the LOAD key off, the inverter charge the battery only 2. When the
battery is power off, the PV can wake up the battery automatically
PV charge the battery and power the load
1. AC charge the battery from AC Input or GEN Input 2. When the battery is
power off, the AC can wake up the battery automatically
NOTE: The output power depends on the PV energy input, if the PV energy is
unstable, witch will influence the output power
When setting without battery, the PV can power the load.
3.2 Working Modes related setting description
Situation
Setting 1
Setting 2
AC abnormal
NA
NA
In the AC first time
NA
Working modes and Description
off grid inverter mode if P_Solar>=P_load, solar is used to take load and
charge battery if P_Solarv<P_load, solar and battery take the load together,
system will discharge until battery lower than the Cut Off Voltage/SOC
Bypass Mode AC will take the load and Solar is used to charge battery
AC normal
Enable AC charge and in the AC charge time
AC charge accroding to Time
Bypass Mode+AC charge battery Solar is used to charge battery AC will take load and also charge battery during AC charge time if solar power is not enough
AC charge accroding to SOC/Battery voltage
Bypass Mode+AC charge battery Solar is used to charge battery AC will take load and also charge battery when battery SOC/Volage is lower than start SOC/Voltage, and the AC will stop charging when the battery Voltage/SOC is higher than AC end charge battery voltage/SOC
off grid inverter mode
1. Not in the AC first time and
if P_Solar>=P_load, solar is used to take load and charge
2. Disable AC charge or not
NA
battery if P_Solar<P_load, solar and battery take the load
in the AC charge time
together, system will discharge until battery lower than
EOD Voltage/SOC
User Manual
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User Manual
1. SNA-US 12000 can working as a traditional off grid inverter. In this
situation, inverter either use (solar+battery) to take load or use AC take
load. Related settings
AC First: During the setting time, system will use AC to take load first, use
solar power to charge the battery. If the battery is full, solar power may be
wasted. When out of the setting time, system will use battery and solar to
take load until battery voltage/SOC is lower than cut off voltage/SOC
2. AC Charge function Disable: The system will not use AC to charge the
battery(except Li ion BMS set force charge flag )
According to Time: During the setting time, system will use AC to charge the
battery until battery full and battery will not discharge during the setting
time. According to Battery Voltage: During the setting time, system will use
AC to charge the battery if battery voltage is lower than AC Charge Start
Battery Voltage and will stop when Voltage is higher than AC Charge End
Battery Voltage. And battery will not discharge during the setting time.
According to Battery SOC: During the setting time, system will use AC to
charge the battery if battery SOC is lower than AC Charge Start Battery SOC
and will stop when Voltage is higher than AC Charge End Battery SOC. And
battery will not discharge during the setting time.
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User Manual
4. LCD display and settings
4.1 RGB Display
4.2 LCD Display
LED Indicator
Messages
1 Green Rotate Normal
2 Yellow Rotate Warning
3 Red Rotate
Fault
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User Manual
NO.
Description
Remarks
1
Generally Information
Display Area
2
Solar inverter output power
3
Battery information and data
Display the currently time/date by default.
This area shows the data of Two-chnnel PV voltage and power.
This area shows the battery type,(lithium battery or lead Acid
battery),display the voltage, SOC , input and output power.
4
LOAD output information
and data
5
Loads consumption
6
Grid information and
Generator information
7
Working status text
display area
This area will display LOAD voltage, frequency, power.
Display the power consumption by the loads in on grid model.
Display the grid (Power pylon) information of voltage, frequency, input or
output power, the Generator (dynamo) information of voltage, frequency, input
power.
This area displays the status code of the SNA-US 12000 inverter, including
rated running status text, the code for the alarm and the code error.
22
4.3 Inverter Status Display
User Manual
When the SNA-US 12000 inverteris running normally, the text information corresponding to the current working status is displayed in the red box, such as PVGridOn or PVCharge.
Warning Status, warning 04
Fault status, fault 02
Flash status: download percent is 58%
If the system displays the icon in the red box. Indicates that the AC input port is connected to the power grid.
When the icon in the red box is displayed, it indicates that the AC input port is connected to a generator.
23
4.4 LCD Settings
Button Operations
UP
User Manual
Return
Enter
Button ESC ENTER UP DOWN
Down
Fuction Exit Confirm, Enter menu Previous step or Slide right Next step or
Slide left
Note: Long-pressing the UP and DOWN keys will continuously input the corresponding key signals.
General Operations Through button control, press ENTER on the home screen to access the menu options
Using the UP and DOWN buttons, select the desired function, then press ENTER
to enter. Press ESC to return to the previous level. The options include Home
for the main page, Data for operational data, Notice for fault and warning
information, and Setting for configuration settings.
Note: Click the Down button again, then jump to Notifications, Settings, Home,
and complete a loop..
24
Index Description
Index
User Manual
1
Solar
The figure shows the voltage and power of PV1, the voltage and power of PV2, the power generation of PV1 in one day and the total power generation of PV1, the power generation of PV2 in one day and the total power generation of PV2.
2 Battery (1) The first page contains the following information: battery
voltage, battery charge and discharge current, battery charge power, battery
discharge power, inverter sampling battery voltage, battery status, battery
remaining power, battery health, battery charge cut-off voltage, battery
discharge cut-off voltage. The highest cell voltage. Lowest cell voltage.
Highest cell temperature, lowest cell temperature.
3 Battery (2) The second page contains the following information: the number
of charge and discharge times of the battery, the capacity of the battery, the
maximum charge current, the maximum discharge current, BMS event 1, BMS event
2, the charge power in a day, the discharge power in a day, the total charge
power, the total discharge power.
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User Manual
4
Grid (1)
The first page contains the following information: grid voltage, grid frequency, split phase L1-N voltage, split phase L2-N voltage, generator voltage, generator frequency, power input from the grid to the inverter, power output from the inverter to the grid, inverter power, rectified power, load power.
5
Grid (2)
The second page contains the following information: The power of the inverter exported to the grid during the day. The total power of the inverter exported to the grid. The power that the grid imports into the inverter during the day. The total power imported from the grid to the inverter. The power output of the inverter during the day. The power of inverter rectification in a day.
6
UPS (1)
The first page contains the following information: LOAD voltage, LOAD frequency. L1-N voltage of LOAD, L2-N voltage of LOAD. The active power of LOAD, the apparent power of LOAD. The L1-N active power of LOAD and the L1-N apparent power of LOAD. The L2-N active power of LOAD and the L2-N apparent power of LOAD.
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User Manual
7
UPS (2)
The second page shows the output power of LOAD (L1-L2) in a day. LOAD (L1-L2) Indicates the total power output. LOAD (L1-N) Output power in a day. LOAD (L1-N) Indicates the total power output. LOAD (L2-N) output power in a day. LOAD (L2-N) Total power output.
8
Parallel
This page contains information about the role of the inverter in the parallel state (master and slave), the type of parallel connection (single-phase or three-phase), the parallel phase (U, V, or W), the number of parallel machines, and the parallel address.
9
Other
This page contains text information about the current status of the inverter. Inverter error code. Inverter alarm code. Voltage of BUS1. Voltage of BUS2. Positive BUS voltage. Negative voltage of the BUS. The temperature of T1 is the temperature of the I/O board (the highest value). T2 is the temperature of the motherboard (take the highest value).
27
Index Description
Notice
User Manual
1
Fault
Status
Information on this page: When the inverter fails, this page displays the corresponding fault code. If there is NO Fault, no fault is displayed.
2
Alarm Status
Information contained in this page: When the inverter alarm appears, this page will display the corresponding alarm code. If there is NO Alarm, no alarm is displayed.
3
Record
This page contains information that lists the history of failures and alarms. Specific to the time and date of failure or alarm. The fault history is displayed on pages 1 to 4. Pages five through eight show the history of the call.
28
Index Description
Setting
User Manual
Battery brand
Standard Lux
HinaESS Aobo
Pylon
Dyness
Enopte Stealth
MSUN
TeLongMei
GSL1
Merit
Battery brand
BYD
GW
SHINWA Beta
WeCo
Revov
Murata Beebeej
BITek
Naxin
OKSolar Soltaro
The first page contains the following information:
inverter status information (rated or standby). PV input mode
(DC source or PV1 and PV2 independent or PV1 and PV2 parallel). Type
of battery (lithium or lead-acid or no battery). Lithium battery
brands (containing 24 battery brands). Green energy saving
enabled. Battery energy saving is enabled. The insulation impedance is
1
Common enabled.
The second page contains the following information: The Settings of the year,
month and date. Enabling the buzzer.
2 Application (1) The first page contains information on LOAD output voltage
Settings (240,230,220,208,200). LOAD output frequency setting (50HZ or 60HZ).
AC input range (UPS: 170-280 or APL: 90-280). The PV off-network function was
enabled. N-PE is enabled. AFCI enabled, AFCI clear, RSD enabled.
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User Manual
3 Application (2)
The second page contains information: AC priority charging time, you can set
three time periods.
4
Application (3)
The third page contains the following information: Mixed mode Settings. PV and AC are loaded together. empower Export to the grid. Percentage of electricity output to the grid. Enable the CT function on the inverter power grid side. The default CT ratio is 1000:1. It can also be set to 2000:1 and 3000:1.
5 Application (4) The fourth page contains information: Type of parallel
machine (no parallel machine or single phase parallel machine or three phase
parallel machine). Parallel phase (R,S,T) can be set. The battery sharing
function was enabled.
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User Manual
6
Charge (1)
The first page contains information: charging current Settings. CV voltage setting of lead-acid battery. Lead-acid battery floating charge voltage setting.
7
Charge (Numerical
setting operation)
This page contains: Setting values. After pressing Down, exit move to +1, +1 to -1, -1 to +0.1, +0.1 to -0.1, and -0.1 to Enter. Press UP to roll back.
If you press Enter when the cursor moves to +1, 55 becomes 56. If you
press Enter when the cursor moves to -1, 55 becomes 54. If you press
Enter when the cursor moves to -0.1, 55 becomes 54.9. If you press Enter
when the cursor moves to +0.1, 55 becomes 55.1.
8 Charge (2) The second page contains information: AC charging mode enable
Settings. AC charging current setting.
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User Manual
9
Charge
(according
to the time)
The second page contains information: The AC is charged according to the time, and three time periods are provided.
Charge 10 (according
to the
battery
voltage)
The second page contains information:
The AC is charged according to the battery voltage. The starting
charge voltage and cut-off charge voltage can be set.
Charge
11
(according to
the battery
SOC)
The second page contains information: The AC is charged according to the battery SOC. Start charge SOC and stop charge SOC can be set.
32
User Manual
Charge
(according
12
to the
battery
voltage and time)
The second page contains information: The AC is charged according to the battery voltage and time.
Meet one of the three time periods and the battery voltage
between the starting charge voltage and the cut-off charge
voltage. The AC will be charged.
Charge 13 (according
to
time and
SOC)
The second page contains information:
The AC is charged according to time and SOC. Meet one of the
three time periods and the battery SOC between the start charge
SOC and the cut-off charge SOC. The AC will be charged.
14 Charge (3) The third page contains information about the Settings for
charging the generator. The generator is charged according to the battery
voltage or battery SOC. Battery charging current can be set. The battery
voltage can be set to start charging. You can set the battery voltage at the
end of charging. Battery SOC can be set to start charging. Battery SOC can be
set to end charging. The maximum input power of the generator can be set.
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User Manual
15 Discharge (1) The first page contains information: battery discharge can be
based on voltage or SOC. Discharge current can be set. Battery alarm voltage
can be set. Off-grid discharge cutoff voltage can be set. Grid-connected
discharge cutoff voltage can be set. The alarm voltage is larger than the off-
grid cut-off voltage. The off-grid cut-off voltage range is complementary to
the grid-connected cut-off voltage range.
16 Discharge (2) The second page contains the following information: Enable
Smart Load. When the actual PV input power is greater than the value, the
Smart Load function takes effect. Normally open when connected to the grid.
Smart Load takes effect voltage point. Smart Load End voltage point. Smart
Load takes effect on the SOC. Smart Load Ends the SOC.
17 Discharge (3) Page 3 contains the following information: Enables the AC
coupling function. Sets the start state of charge (SOC) for AC coupling.
Defines the cutoff SOC for the AC coupler. Configures the start voltage for
the AC coupler. This section provides detailed settings for the AC coupling
process, including initiation and cutoff parameters to ensure optimal
performance.
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User Manual
Other
Include information: CT power compensation setting. Set the maximum speed of
five fans. Set five fan control slope curves.
18
Basic
Contains information: SN Indicates the serial number of the inverter. FW Indicates the firmware version of the inverter (cEaa indicates the US version, cFaa indicates the European version).
35
5. About LCD Settings check the operation
Enter Up or Down Enter
User Manual
36
User Manual
6. Monitor System for Offgrid inverter
Users can use wifi dongle / WLAN dongle / 4G dongle (Available from 2021 March
for some countries) to monitor the energy storage system, The monitor website
is: server.luxpowertek.com The APP is also available in the google play and
apple APP store (Scan two code bar to download the APP). Please download the
introduction of guidance by website: https://www.luxpowertek.com/download/
Document Reference:
1. Wifi Quick Guidance Quick guidance for setting password for wifi module,
the paper is also available in the wifi box 2. Monitor system setup for
Distributors and Monitor system setup for endusers, Monitor system
registration, wifi password setting, and wifi local monitor and setting
3. Lux_Monitor_UI_Introduction Introduction of monitor interface
4. Website Setting Guidance Introduction of website settings for offgrid
inverter
Device
Solar Yield
0.6 kWh
Yield Today
164.6 kWh
Total Yield
Feed-in Energy
0 kWh
Today E xp o rt
98.3 kWh
To ta l E xp o rt
9532004127
Battery Discharging
0.4 kWh
ch a r g ed To d a y
25.8 kWh
To ta l ch a r g ed
C ons um pti on
7.6 kWh
To d a y Usa g e
147.3 kWh
To ta l Usa g e
270 W Battery Power
724 W PV Power
Notice 0 W
53.6Vdc 89% Battery Level(SOC)
Standby Backup Power(EPS)
448 W Co n su mp t io n
O ve rvi e w
Data
Event
S e tting
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User Manual
7. Specifications
Table 1 MPPT Mode Specifications
INVERTER MODEL
SNA-US 12000
Max. PV Array Power
24000W(12000/12000)
Rated PV Input Voltage
320V
Number of Independent MPPT Inputs
2
Number of string per MPPT
2
PV Input Voltage Range
100V~480V
MPPT Voltage Range
120V~385V
Start-up Voltage
100V
Max. PV Input Current per MPPT
35A/35A
Max. PV Short-circuit Current per MPPT
44A/44A
Max. PV Charging Current for Battery
250A
Table 2 Battery Mode Specifications
Rated Output Power Max. Half Wave Load Output Voltage Waveform
Output Voltage Regulation
6000W (L-N),12000W (L-L) 4500W (L-N) Pure sine wave 120Vac/208Vac 120Vac/240Vac
Rated Output Current
54.5A@208V; 50A@240V
Output Frequency Max. Charging/Discharging Current Max. Charging/Discharging Power Recommend Capacity of Battery per Inverter
50Hz/60Hz 250A 12000W >400AH
Peak Efficiency
93%
Overload Protection Surge Capacity Battery Voltage Range
5s@150% load(L-N, L-L) 10s@110%~150% load(L-N, L-L)
2* rated power within 5 seconds
46.4Vdc-60Vdc(Li) 38.4Vdc-60Vdc(Lead_Acid)
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User Manual
High DC Cut-off Voltage
High DC Recovery Voltage
load < 20%
Low DC Warning Voltage 20% load < 50%
load 50% Low DC Warning Return Voltage
Low DC Cut-off Voltage
Low DC Cut-off Return Voltage
Low DC Warning SOC
load < 20%
20% load < 50%
load 50%
Cut-off Voltage @load<20%45V Cut-off Voltage @load<20%<45V
Low DC Warning Return SOC
Low DC Cut-off SOC
59Vdc (Li) 60Vdc (Lead_Acid) 57.4Vdc (Li) 58Vdc (Lead_Acid) 42.0Vdc (Settable) Warning Voltage @load < 20% -1.2V Warning Voltage @load < 20% -3.6V Low DC Warning Voltage@Different load +2V 42.0Vdc (Settable) Cut-off Voltage @load < 20% -1.2V Cut-off Voltage @load < 20% -3.6V Low DC Cut-off Voltage @load<20%+3V 48V 20% SOC (Settable ) Low DC Warning SOC +10% 15% SOC (Grid on) (settable) 15% SOC (Grid off ) (settable)
Low DC Cut-off Return SOC
Charge Cut-off Voltage
No Load Power Consumption
Lead_Acid Battery Charging Algorithm
Bulk Charging Voltage
Flooded Battery AGM/Gel Battery
Floating Charging Voltage
Low DC Cut-off SOC +10% 58.4Vdc <60W 3-Step 58.4Vdc 56.4Vdc 54Vdc
Battery Voltage, per cell
2.43Vdc (2.35Vdc) 2.25Vdc
Charging Current Voltage
100%
Charging Curve
T0
T1
T1=10*T0, minimun 10mina, maxmum 8hour
Bulk (Constant Current)
Absorption (Constant Voltage)
Current
Maintenance (Floating)
50% Time
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User Manual
Nominal Input Voltage AC Start-up Voltage
Table 3 Line Mode Specifications
110Vac/120Vac 220Vac/240Vac
45Vac (L-N), 90Vac (L-L)
Acceptable Input Voltage Range
High Loss Voltage Max. AC Input Current Nominal Input Frequency Rated AC
Current of Bypass Relays
Output Short Circuit Protection
65Vac (L-N)~140Vac (L-N) 130Vac (L-L)~280Vac (L-L)
140Vac (L-N)/ 280Vac (L-L) 100A 50Hz/60Hz (Auto detection) 200A
Software Protect when GridOff Discharge Circuit Breaker Protect when GridOn
Bypass
Transfer Time
<10ms @ Single <20ms @ Parallel
Output Power Derating; When AC Input Voltage Drops to 170V, The Output Power
Will be Derated
Smart Load Outputs the load and current
Max inv current: 60A Max inv power: 12kW
Table 4 Generator Mode Specifications
Rated GEN Voltage
120Vac/208Vac 120Vac/240Vac
Rated GEN Frequency Rated GEN Input Current Rated GEN Input Power Rated GEN Current of Bypass Relays
50Hz/60Hz 62.5A @240V 15000W 90A
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User Manual
Table 5 Protection/General Specifications
INVERTER MODEL Over Current/Voltage Protection Grid Monitoring
SNA-US 12000 YES YES
AC Surge Protection Type III
YES
Grid Switch (Current/Voltage) Load Switch (Current/Voltage) Smart Load Switch (Current/Voltage)
No 100A/480VAC 63A/480VAC
Battery Switch (Current/Voltage)
300A/80VDC
GEN Switch (Current/Voltage)
No
Safety Certification
UL STD. 1741 CSA STD. C22.2 No.107.1
Ingress Protection Rating Display&Communication Interface Warranty Cooling Method Topology Noise Emission (typical) Operating Temperature Range Storage temperature Humidity Altitude Dimension (DWH) Net Weight
IP 20 LCD+RGB, RS485/Wi-Fi/CAN 2 Years FAN Transformer-less <50dB 0°Cto 45°C (32°F~113°F) (full load) -15°C~ 60°C (5°F~140°F) 5% to 95% Relative Humidity (Non-condensing) <2000m(6561ft) 830530150mm (25.5917.725.9inch) 45Kg
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User Manual
8. Trouble Shooting & Error List
The failures mainly divided into 5 categories, for each category, the behavior
is different:
Code E000 E001 E003
E008
E009
Description Internal communication fault1 Model fault CT Fail CAN
communication error in Parallel System
No master in parallel system
Trouble shooting Restart inverter, if the error still exist, contact us
(DSP&M3)
Restart inverter, if the error still exist, contact us
Restart inverter, if the error still exist, contact us
Check CAN cable connection is connected to the right COM port
Check parallel setting for master/Slave part, there should be one master in
the system
E012 E013
E015 E018 E019 E020 E021 E022 E024 E025
E028 E029
Off-gird, short-circuit of the Load or Smart Load. UPS reserve current BUS
short circuit Phase Error in three phase parallel system
Internal communication fault3 Bus voltage high AC connection fault
PV voltage high Hardware Over current PV overcurrent
Temperature over range
Sync signal lost in parallel system Sync triger signal lost in parallel system
Check if the load is short circuit, try to turn off the load and restart
inverter
Restart inverter, if the error still exist, contact us Restart inverter, if
the error still exist, contact us
Check if the AC connection is right for three phase system, there should one
at least one inverter in each phase
Restart inverter, if the error still exist, contact us (DSP&M3)
Check if PV input voltage is higher than 495V
Check if LOAD and AC connection is in wrong terminal Check PV input connection
and if PV input voltage is higher than 480V
Restart inverter, if the error still exist, contact us
Check PV connection
The internal temperature of inverter is too high, turn off the inverter for
10minutes, restart the inverter, if the error still exist, contact us
Check CAN cable connection is connected to the right COM port
Check CAN cable connection is connected to the right COM port
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User Manual
W000
Communication failure with battery
W001
AFCI Com failure
W002
AFCI High
W003
Communication failure with meter
W004
W006 W008 W009 W013
W015 W017 W018 W019 W020 W022 W025 W026
W027 W028 W029
W031
Battery failure
RSD Active Software mismatch Fan Stuck Over temperature
Bat Reverse AC Voltage out of range AC Frequency out of range AC inconsistent
in parallel system PV Isolation low DC injection high Battery voltage high
Battery voltage low
Battery open Over load The load output voltage is high
Load DCV high
Check if you have choose the right battery brand and communication cable is
right, if the warning still exist, contact us
Restart inverter, if the error persists, contact your supplier.
Check each PV string for correct open circuit voltage and short circuit
current. If the PV strings are in good condition, please clear the fault on
inverter LCD.
Check communication cable, if the warning still exist, contact us
Inverter get battery fault info from battery BMS, restart battery, if the
warning still exist, contact us or battery manufacture
Check if the RSD switch is pressed.
Please contact Luxpower for firmware update Check if the fan is OK
The temperature is a little bit high inside inverter
Check the battery connection with inverter is right, if the warning still
exist, contact us
Check AC voltage is in range
Check AC frequency is in range Reconnect the AC input or Restart inverter, if
the errorstill exist, contact us
Restart inverter, if the error still exist, contact us
Restart inverter, if the error still exist, contact us Check if battery
voltage is in normal range
Check if battery voltage is in normal range, need to charge the battery if
battery voltage is low
Check if there is output from the battery and battery connection with inverter
is OK Check if load is too high
Restart inverter, if the error still exist, contact us
Restart inverter, if the error still exist, contact us
43
YOUR RELIABLE ENERGY SOLUTIONS PARTNER
luxpowertek
Lux Power Technology Co., Ltd Headquarter: +86 755 8520 9056
www.luxpowertek.com Contact us: info@luxpowerttek.com
092.20031AA
References
- British American Tobacco - Home
- ログイン | m3.com
- server.luxpowertek.com
- Solar Inverters Manufacturer & Factory | LuxpowerTek