CNBOU Helios Series User manual

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Category
Dear Customer:
Thank you very much for purchasing our products! This manual will
provide some important information and recommendations including:
installation, operation and troubleshooting. Before use, please read the
manual carefully and pay special attention to the recommendations
relating to safety.
1. Safety Summary.......................................................................................2
2. Product Introduction................................................................................ 2
2.1 Introduction....................................................................................................... 2
2.2 Technical Specifications....................................................................................3
3. Operation and Installation....................................................................... 3
3.1 Operation........................................................................................................... 3
3.2 Installation......................................................................................................... 4
4. Precautions...............................................................................................6
5. Applications............................................................................................. 7
5.1 Single Application............................................................................................. 7
5.2 Parallel Application........................................................................................... 9
5.3 Series Application............................................................................................10
6. Display and Parameter setting guide..................................................... 11
6.1 Display.............................................................................................................16
6.2 Parameter Setting............................................................................................ 17
6.3 Fault Code....................................................................................................... 23
7. Maintenance & Warranty.......................................................................26

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1.Safety Summary
The following safety precautions should be taken to avoid injury and prevent damage to this
and other associated products. To avoid danger, be sure to use this product in accordance with the
instructions.
Before use, please read the user manual carefully. Operate the equipment according to
instructions.
The power input and output cables should comply with national standards, to avoid
accidental injury caused by inferior cables.
When disconnecting the power input cables, be sure that the power is off first!
When disconnecting the power output cable, be sure that the power is off first!
During operation, do not touch the power input or output cables. This is a shock hazard!
During operation, do not move the inverter!
Inadequate ventilation can cause the machine to overheat and to fail. Do not cover the
ventilation holes! Be sure that the area and inverter have proper ventilation.
Keep the product surface clean and dry. Do not drop small objects inside the machine.
In the event of a temporary power supply cut off, do not open the case to touch the inside
of the device until the capacitors discharge. There is still high voltage inside the machine.
The ground terminal must be grounded (Ground resistance less than 10 Ω). Use thick
diameter ground cable. Keep the ground cable short and as close to the machine as
possible.Ground is can be parallel.
2.Product Introduction
2.1 Introduction
The Helios Series Inverter consists of a Pure Sine Wave Inverter, MPPT Solar Charge
Controller and an AC Charger. The use of advanced components creates high reliability, high
efficiency, better protection and a cleaner waveform. Here are some other key features:
New soft-start circuit will reduce sparks created during cable connection
Inverter voltage output is programmable
Multiple machines can be wired in parallel for more power
New transfer switch seamlessly switches from grid power to solar power
Three inverters connected in series creates 3-phase power output
Energy metering with various protection functions.
4.3 inch TFT color screen makes operation more intuitive and user-friendly.
The Helios Series Inverter can power instruments, color TVs, satellite receivers, household
appliances, automotive equipment and more. The MPPT Solar Charge Controller can
intelligently control PV modules to efficiently charge the batteries. It is also compatible with
wind power.

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2.2 Technical Specifications
2.2.1 Technical Specifications
Specs
Values
BAT Input Voltage Range (VDC)
24VDC（20VDC-30VDC）/ 48VDC (40VDC-60VDC)
Output Power (W)
2000W/3000W/5000W
AC Output Voltage (VAC)
100V ~250V(Adjustable)
AC Input Voltage (VAC)
100V/110VC/220V/230V
AC Output Frequency (HZ)
50HZ/60HZ(Adjustable)
AC Input Frequency (HZ)
50HZ/60HZ
Pure sine wave Regulation（THD）%
≤3%（Liner Load）
Inverter Efficiency（η）%
≥90%
Over load
110% ≤30S / 150% ≤1S
PV Panel Max Input Voltage（VDC)
150V
PV Panel Min Input Voltage（VDC)
24V（36VDC) / 48V（72VDC）
PV Panel Max Input Power (W)
24V（1800W) / 48V（3600W) – varies by model
MPPT Charging Current (A)
40A/60A – varies by model
Grid Charging Current (A)
15A/25A – varies by model
Dielectric Strength
1500VAC 5mA 1min
Ambient Temperature (℃)
-20℃to 55℃(-4°F to 131°F)
Humidity
90% RH Non-condensing
Altitude (m）
≤3000m (≤9800ft)
3.Operation and Installation
3.1 Operation
3.1.1 Open
Before delivery, this equipment has been strictly tested and inspected. To ensure the inverter
was not damaged in transit, please inspect it thoroughly. If any equipment is damaged, contact the
supplier immediately. Make sure the following items are present:
Complete Inverter Body
User’s Manual
Warranty Card
Certificates
Other accessories and components

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3.1.2 Storage
To avoid damage or adverse effects, please store in the following conditions:
clean, dry and well ventilated environment
ambient temperature of -20℃to 55℃(-4°F to 131°F)
relative humidity of less than 90%, with no condensation
keep away from corrosive or flammable materials
energize every six months, to prevent the internal electrolytic capacitors from drying up
3.1.3 Handling
During the handling process, you should avoid any strong vibrations, bumps or falls. Please
pay attention to safety during handling. Be safe! Do not place the box upside down or sideways.
Keep track of accessories, manuals and warranty cards when taking the equipment out of the box.
3.2 Installation
Please check the box. If there is damage when out of the box or if the box has significant damage,
please contact the supplier immediately.
1) Make sure the front panel power switch is “OFF”
2) In accordance with the terminal block wiring terminals identified
3) ＂BAT＂terminal for the battery
BAT﹢is positive
BAT﹣is negative
4) ＂PV＂terminal for solar panel array
PV﹢is positive
PV﹣is negative
5) ＂AC OUT＂is the output terminal
connect to appliances or circuit breaker panel
6) ＂AC IN”＂is the grid input terminal
connect to grid power

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Note! The Helios Series Inverter has phase lock, but not on the “AC OUT”. Do not connect
the grid to "AC OUT" directly! If the grid is connected to the "AC OUT" directly, the
inverter could be permanently damaged. Due to the inverter being damaged by a
Non-Standard Operation, the warranty will become null and void!
A) ＂ ＂are ground terminals. To be reliably connected together.
B) ＂USB＂interface is upgraded with extended functionality.
C) ＂RS485＂as the see-through communication (for back-stage applications
when connected to the PC). This is the standard MODBUS communication
protocol. Connect to your computer using the standard communication
module.
D) ＂CAN＂port on all-in-one, in parallel or in series, for synchronous
communication. When applied, in parallel or in series, connect together with
CAN＂H＂and CAN＂L＂. CAN＂R＂for the CAN load port, must be
connected externally with a cable.

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E) ＂NC＂，＂C＂,＂NO＂for the generator dry node contacts.＂NC＂for the
normally closed contact and＂C＂for the common contact.＂NO＂is
normally an open contact.
4.Precautions
Do not reverse the battery cables. If reversed, the inverter will not be damaged and
can reboot without any reaction.
Do not reverse the PV inputs. If reversed, it will not damage the MPPT Controller.
The MPPT Controller will have no reaction but charging will not be performed.
When connecting the ”AC OUT”, the total power load should not be more than the
rated power of the inverter. This could permanently damage the inverter. If it is an
inductive or capacitive load, reduce power consumption to avoid exceeding the peak
power of the inverter.
When connecting in parallel, connect the＂L＂terminal from AC OUT together and
connect＂N＂terminal from the AC OUT together as well. There must not be a
connection error! Otherwise, it will cause damage to the inverter.
When connecting in series, the 3 inverters need the＂N＂from the AC OUT to be
connected together. 3pcs＂L＂constitutes a three-phase output. There must not be a
connection error! Otherwise, it will cause damage to the inverter.

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Connect the AC IN (grid) terminal to a stable grid power supply. If the grid voltage
fluctuates too frequently, or if the grid frequency is unstable, this may lead to phase
lock failure.
USB port is for data communication port only. There is no charging capacity.
When RS485 connect to PC port, needs and supporting the USB to RS485 converter,
cable with standard 8-core.
When the number of inverters in parallel,there must and only a master and one
slave to connect to the “CAN R”.
If would like to connect with PC program,please using the standard USB cable,softw
are and drive can be download from website(www.cnbou.com)
5.Applications
5.1 Single Application
5.1.1 Operating Model
Solar Priority
Under this option, the inverter output is the power supply. When the battery voltage is low, it
will switch to the grid supply or the power will shut off (if the grid is not connected). When the
inverter is providing power and the MPPT Controller is charging the batteries, the AC Charger
will stop charging. If you switch to Grid Priority, the AC Charger and the MPPT Controller can
charge the batteries together.

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＂○＂running, can be set Manually shut down;＂●＂operating,＂×＂Stop.
AC Power Status
Inverter
AC Charger
Module
MPPT Controller
Module
Inverter Output
○
×
●
Grid Output
×
○
●
Steps:
1. Make sure the inverter power switch is off! Connect the batteries, PV panels, AC OUT
and AC IN (grid) correctly. Confirm that everything is connected correctly. If you are
using the PC monitoring status, connect the RS485 to your PC before turning the power
on. For cable requirements and definitions, see pages 4 and 5.
2. After everything is connected correctly, press the POWER button to turn on the inverter.
Grid Priority
Under this option, the grid output is the power supply. The inverter output is now the back-up
power supply. The AC Charger and MPPT Controller are now charging the batteries together.
Make sure your batteries are charged sufficiently before a power outage. The AC Charger can be
turned off separately. When the grid is off, it will switch to the inverter power automatically. The
switch time is seamless. When the inverter output starts, the AC Charger will stop charging and
the MPPT Controller will still charge the batteries.

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＂○＂running, can be set Manually shut down;＂●＂operating,＂×＂Stop.
AC Power Status
Function Status
Inverter
AC Charger
Module
MPPT Controller
Module
Inverter Output
×
○
●
grid Output
○
×
●
Steps:
1. Make sure the inverter power switch is off! Connect the batteries, PV panels, AC OUT
and AC IN (grid) correctly. Confirm that everything is connected correctly. If you are
using the PC monitoring status, connect the RS485 to your PC before turning the power
on. For cable requirements and definitions, see pages 4 and 5.
2. After everything is connected correctly, press the POWER button to turn on the inverter.
5.2 Parallel Application
The Helios Series Inverter can support up to 30 pcs in parallel with same series to enhance
the power. Internationally standardized CAN communication protocol is used for high-speed
synchronous communication.
Steps:
Note! In parallel, strictly follow the steps and regulatory requirements described below.
If not followed, this may cause the inverter to stop working. In severe cases, the inverter
could be permanently damaged! Due to the inverter being damaged by a Non-Standard
Operation, the warranty will become null and void!
1. For instructions on connecting the inverter’s CAN communication port, wiring
requirements and specifications, see page 5. Note! AC OUT parallel must be after set

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the master and slave. Wiring must be in strict accordance with the specifications!
2. A Parallel Application consists of “Master” and “Slave”. One inverter is “master” and the
rest of the connected inverters are “slave”. After ensuring a correct connection, select one
inverter as “master”, but the master inverter does not need to be set. It is set as master by
default. One by one, turn on the power to the other inverters. Enter the setup mode and set
them to “slave” one by one. Then set the mode to “parallel mode” (see page 22, P 6.2-9).
Note! All slave inverters must be set to the same parameters! Any configuration fault
will be recorded after all the inverters are set up.
3. Make sure all connections are in strict accordance with the requirements on pages 5
and 7. Turn on the master inverter first. Then turn on the other inverters one by one. If
there are no problems with the connection and settings, then begin use. If the inverter
alarm sounds, check to see if the connections, communication cables and settings are
correct. To clear fault codes, see page 18, P 6.2-2.
5.3 Series Application
Helios Series Inverter supports star series communication with three of the same wattage
and input voltage inverters to achieve 3 phase AC output. Suitable for 3 phase motors and other
industrial equipment power supplies.
Steps:
Note! In series connection, strictly follow the steps and regulatory requirements
described below. If not followed, this may cause the inverter to stop working. In severe cases,
the inverter could be permanently damaged! Due to the inverter being damaged by a
Non-Standard Operation, the warranty will become null and void!
1. Connect all of the three inverter’s CAN communication ports. Then connect the ＂N＂
from the AC OUT together from all three inverters. DO NOT connect the＂L＂from the
AC OUT! Wiring must be in strict accordance with specifications on page 7!
2. A Series Application consists of “Master” and “Slave”. One inverter is “Master” and the
rest of the connected inverters are “Slave”. After ensuring a correct connection, select one
inverter as Master, but the Master inverter does not need to be set. It is set as Master by
default. One by one, turn on the power to the other inverters. Enter the setup mode and set
them to “Slave” one by one. Then set the mode to “series mode” (see page 22, P 6.2-9).
Note! All Slave inverters must be set to the same parameters! Any configuration fault
will be recorded after all the inverters are set up.
3. Restart all inverters, after applying the proper settings, by turning them all off. Make sure
all connections are in strict accordance with the requirements on pages 5 and 7. Turn
on the master inverter first. Then turn on the other inverters one by one. If there are no
problems with the connection and settings, then begin use. If the inverter alarm sounds,
check to see if the connections, communication cables and settings are correct. To clear
fault codes, see page 18, P 6.2-2.

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6.Display and Parameter setting guide
Helios Series Inverter has built-in intelligent and interactive systems. When powering on the
inverter for the first time, it will enter the Settings Wizard. Follow the instructions to set the
parameters and connections. When the settings are finished, the Helios will check the all main
parameters automatically and begin working. All running status and information will begin
recording.
Year
Month

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Day
Hour

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Time: Set the correct time based on your region. The Helios will record the generating capacity
every day as well as the fault code information.
Output voltage: The Helios Series Inverter output voltage can set between 100V-250V to meet
the requirements for each region.

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Temperature unit selection: Select Fahrenheit or Celsius.
Grid Frequency: Set it the same as the grid frequency for your region.

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Priority Default: Set Solar Priority or Grid Priority
Output Application: Single, Parallel or 3 phase (Series) Output

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Check all wire connections to ensure that they are correct.
Check the wire connections again and press＂SET＂to start power.
6.1 Display
Helios Series Inverter uses a 4.3 inch TFT color screen as the monitor display. Now you can
visually monitor the current operating status of the different systems.

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P 6-1
As seen in picture 6-1, you can monitor the battery voltage, PV panel voltage, PV panel
current, MPPT charging current, grid charging current, AC output voltage, AC output current,
output power, inverter and MPPT heat-sink temperature, communication and fault information,
etc.
6.2 Parameter Setting
In the control interface, holding down the ＂∧＂and ＂〉＂at same time about 5 seconds
will bring you to the settings interface.
P 6.2-1
After entering, click the＂∧＂，＂∨＂，＂〈＂，＂〉＂arrow keys to move the cursor to the
selection you want to view. Click on the “SET” button to enter the setup. To return to the monitor
interface, press the “ESC” button. Setting interface includes: Main Options, Parameter Setting,
Versions Info, INV Fault Log, MPPT Fault Log, Generating Capacity and Control & Set.

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P 6.2-2
Detailed Data includes: inverter status and fault codes.
P 6.2-3
Main Options includes: Temperature Unit Setting, Grid and Solar Priority setting, Output
Frequency setting, Soft-start setting, Display Steady backlight setting, Alarm Sound setting and
Grid Charging disable setting.

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P 6.2-4
Parameter Setting includes: Language setting, Time setting, Output Voltage setting and Battery
Type setting.
P 6.2-5
Versions Info includes: version No. of software & hardware.