Soltaro AIO2-INS Series User manual

Operating Manual
AIO2-INS Series
Version: AIO2 Pro-INS-EN 3.0-202210

Contents
1 About This Manual ............................................................................ 1
1.1 Products Covered by This Manual........................................... 1
1.2 Target Group .......................................................................... 1
1.3 Symbols Used........................................................................ 1
1.4 Storage of the Manual............................................................ 1
2 Safety................................................................................................ 2
2.1 Intended Use ......................................................................... 2
2.2 Important Safety Instructions................................................. 2
2.3 Storage and Transportation..................................................... 3
3 Scope of Delivery.............................................................................. 4
4 Product Description........................................................................... 5
4.1 View of the Inverter................................................................ 5
4.2 Topology of the Inverter ......................................................... 7
4.3 System Diagram..................................................................... 8
4.4 Operating Mode Introduction ................................................. 9
5 Mounting .........................................................................................12
5.1 Requirements for Mounting ..................................................12
5.2 Mounting the Inverter (with AIO2-BTLV-5KWH battery) ........14
5.3 Mounting the Inverter (with AIO2-BTLV-10KWH battery).......18
6 Electrical Connection....................................................................... 21
6.1 Wiring Diagram for Australia & New Zealand ....................... 21
6.2 Wiring Diagram for Europe................................................... 22
6.3 Overview of the Connection Area ........................................ 23
6.4 PV Connection ..................................................................... 24

6.5 Grid Connection ................................................................... 26
6.6 EPS Connection ................................................................... 27
6.7 Battery Connection .............................................................. 29
6.8 Smart Meter Connection...................................................... 32
6.9 Qendercore Hub Connection................................................ 35
6.10 DRM Connection.................................................................. 35
7 Operating of the Inverter................................................................. 36
7.1 Graphical Display.................................................................. 36
7.2 Commissioning .................................................................... 37
7.3 Decommission ..................................................................... 38
7.4 Network Configuration......................................................... 39
8 Troubleshooting and Maintenance................................................... 42
8.1 Troubleshooting.................................................................... 42
8.2 Recommended Maintenance ............................................... 45
9 Technical Data ................................................................................. 46
9.1 Specification of inverter........................................................ 46
9.2 Specification of battery......................................................... 48
9.3 Certificates and Grid Regulations ......................................... 49
10 Contacts:......................................................................................... 50

1
1About This Manual
1.1 Products Covered by This Manual
AIO2 Series Low Voltage Solar Hybrid Inverter:
AIO2-INS-3000, AIO2-INS-3680, AIO2-INS-4600, AIO2-INS-5000.
1.2 Target Group
This document is intended for qualified electricians. Any electrical installation and maintenance
on this inverter must be performed by qualified electricians in compliance with standards, wiring
rules or requirements of local grid authorities or bodies.
1.3 Symbols Used
These important instructions must be followed during installation, operation and maintenance
of the inverter.
Indicates a hazard with a high level of risk that will result
in death or serious injury.
Indicates a hazard with a medium level of risk that can
result in death or serious injury.
Indicates a hazard with a low level of risk that can result
in minor or moderate injury.
Indicates a situation which, if not avoided, can results in
property damage.
1.4 Storage of the Manual
The manual should be stored with other documents belonging to the inverter and must be
available to people authorized to work on the installation.
Note: This manual will be updated if necessary. Please check www.soltaro.com for more
information.

2
2Safety
2.1 Intended Use
The AIO2 Series are single phase solar hybrid inverters suitable for both on-grid and off-grid
operation. With Lithium batteries, PV panels and a smart meter, the hybrid inverter is the central
device to make a solar storage system for increased self-consumption.
The AIO2-INS Series must only be connected with the lithium battery from SOLTARO.
To prevent personal injury and property damage and to ensure long-term operation of the
product, please read and follow all the instructions and cautions on the inverter and this user
manual during installation, operation or maintenance at all times.
2.2 Important Safety Instructions
Danger to life from electric shock.
• Before performing any work on the inverter, disconnect all DC and AC power from
inverter and wait for at least 5 minutes.
• Do not touch DC conductors or any non-isolated cable ends.
• If an error occurs, contact your local distributor or qualified electricians.
• Make sure the inverter is not touchable by children.
Risk of burns from hot surfaces.
• The surface of the inverter might exceed 60℃, touching the surface may result in
burns.
• Do not touch hot surfaces before it cools down.
• Only authorized service personnel are allowed to install the inverter or perform
servicing and maintenance.
• All power, both AC and DC, should be disconnected from inverter before
attempting any maintenance or cleaning or working on any circuits connected to
inverter.

3
• The Inverter has a transformerless design on the PV side. Either positive or
negative terminals of PV panels should not be grounded.
• The frames of PV panels should be grounded for safety reasons.
• Do not open inverter cover or change any components without authorization,
otherwise the warranty commitment for the inverter will be invalid.
• Appropriate methods must be adopted to protect inverter from electrostatic
discharge, any damage caused by ESD is not warranted by the manufacturer.
2.3 Storage and Transportation
• Store the inverter in a dry environment where ambient temperature keeping always
between -20 °C and +60 °C.Take care of the inverter during the storage and transportation.
• The package shall not be tilted or inverted during transportation, handling and storage.
• When the inverter or other related components need to be disposed, make sure it is
carried out according to local waste handling regulations.
• Please be sure to deliver waste inverters and packing materials to appropriate recycling
centers where possible.

4
3Scope of Delivery
Inverter
Wall Mounting
Bracket
Battery power
cables
BMS Cable
EPS Connector
Grid Connector
PV Connectors
RJ45 Connector
for DRM port
1 2
3 4
5 6
7 8
CT and Smart Meter
16pin Multi port
connector
M5 Screws
Expansion
Screws
Certificate card
User Manual
Qendercore Hub
(Wi-Fi &LAN Stick)

5
4Product Description
Thank you for choosing the SOLTARO AIO2 ESS which is a single phase system. Inverters should
not be used in multiple phase combinations. Features of the inverter are ahead of the field and
should be understood prior to install.
4.1 View of the Inverter
Figure 1. View of the AIO2 Series Hybrid Inverter
Position
Designation
A
Graphical Display
B
LED light.
When inverter is running normally, the light is green.
When an error occurs, the light turns red.
B
A

6
Icons on the Nameplate
Symbol
Explanation
CE Mark
UKCA Mark
UKNI Mark
Caution, Risk of Danger
Caution, Risk of Electric Shock
Caution, Hot Surface.
Refer to the Operating Manual
5min
Danger, Risk of Electric Shock due to Stored Energy. Cut off all
power and wait at least 5 minutes before any work is carried out
on the inverter.
RCM Mark for Australia and New Zealand.
WEEE Mark. This inverter should not be disposed as ordinary
waste.

7
4.2 Topology of the Inverter
Figure 2. AIO2 Series Hybrid Inverter topology
• After the PCE installation is completed, it is recommended that the N and PE wires are
joined at the distribution box;

8
4.3 System Diagram

9
4.4 Operating Mode Introduction
4.4.1 On Grid Self-Use Operating Mode
The on grid self-use operating mode is recommended for when the system is installed in an
area with a stable grid. The purpose is to increase self-consumption of PV energy. When Inverter
is set to work in this mode:
i. During daytime and there is sufficient PV Power,
• The PV energy is used to supply local loads as first priority and then charge the battery,
any excess energy will be fed into grid*1*2.
• When battery is fully charged, PV energy is supplied to the local loads and fed into
grid*1*2.
ii. During nighttime or there is not sufficient PV Power,
• Battery is discharged to supply local loads, if extra power is required, it will be imported
from grid.
• When the battery SOC is below the DischargeEndSOC@Grid value or fully discharged,
the inverter will stop working and local loads will be supplied from the grid.
• Thanks to the on-grid operation, the switch from battery power, PV power and grid
power is automatic and seamless.
iii. When grid fails,
• When grid fails, the inverter will automatically disconnect from grid and output power
to the EPS port.
• When battery is discharged to the DischargeEndSOC@EPS value, the inverter will stop
working and wait for the grid to recover or until there is sufficient power from PV panels
to charge the battery.
• If grid failure can be a common occurrence in your area, you can adjust the
DischargeEndSOC@Grid higher to ensure there is battery power available.
iv. You can also:
• Set a schedule for the inverter to charge the battery using cheap off-peak grid power.
• Specify the daily working periods of self-use for inverter.
*1: The inverter can be set not to feed power into the grid. But a small amount of energy will
still inevitably be fed into grid due to unpredictable PV power changes and load fluctuations.
*2: Firmware update may be required to support this function.

10
• For on-grid self-use operating mode, one can set the discharge end SOC@Grid as low
as the battery allows (10% or 20% for example). Please refer to your local battery
technician for minimum discharging end SOC.
4.4.2 On-Grid Self-Define Mode
On-Grid Self-Defined Mode can also be referred to as Forced Charge/Discharge Mode. When
operating in this mode, the charging and discharging time can be set flexibly as required. This
mode is ideal for those who want to store the power in the battery when the electricity price is
at an off-peak rate and use the power during peak rate time or save the energy for grid outages.
i. When PV, grid and battery are available:
• When set to Forced Charge, PV and grid power will charge battery as the first priority at
the same time. Any excess PV energy will supply local loads and then be fed into the
grid*1*2.
• When set to Forced Discharge, PV power will supply local loads first, then excess PV
power and battery power will be fed into grid*1*2.
• When Forced Charge or Discharge is not set, the inverter will automatically work in Self-
Use mode.
ii. When grid and battery are available (PV is disconnected):
• When set to Forced Charge, grid power will charge the battery and supply local loads at
the same time.
• When set to Forced Discharge, battery will discharge to local loads first, then the excess
power will be fed into grid*1*2.
*1: The inverter can be set not to feed power into the grid. But a small amount of energy will
still inevitably be fed into grid due to unpredictable PV power changes and load fluctuations.
*2: Firmware update may be required to support this function.
4.4.3 Off Grid /Back-up Operating Mode*3
For systems installed in areas with a weak grid or even without grid, the inverter should be
working in off grid / back-up operating mode:
i. When grid or generator power is available,
• When the battery is below the DischargeEndSOC@Grid value, it will be charged from PV
first, and from grid/generator secondly at the max allowable current.

11
• When the battery is above the DischargeEndSOC@Grid value, it will be charged by
excess PV power and will discharge if the PV power is not enough to support the loads.
ii. When grid or generator power is not available,
• When there is enough energy stored in the battery, the EPS port will export power to
support EPS loads. If there’s excess PV power, it will be used to charge the battery.
Otherwise the battery will be discharged to power the load.
• When the battery SOC is below the DischargeEndSOC@EPS value, the inverter will
disconnect power to the EPS port. All power from PV will be used to charge the battery
until the SOC reaches the EPS restart value (10% above DischargeEndSOC@EPS value).
iii. When working in this mode:
• The max power*3 from the EPS port is limited by inverter type, battery type and battery
SOC.
• A larger battery is always recommended for off grid / backup configuration. You should
never discharge the battery too deeply to avoid it “Running Flat”.
• When there is an overload or short circuit fault, the inverter will stop working and an
alarm will sound. It will try to restart several times before shutting down completely. Turn
off or unplug load to remove the short circuit fault or overload as soon as possible.
*2: Firmware update may be required to support this mode.
*3: Please be noted that refrigerators, air conditioners, water pumps and etc., demand a large
start up currents and may trip EPS overload protection. Be sure not to connect too many of
this kind of load to avoid frequent system shutdown and restart.
• For off-grid / back-up operating mode, one should set a higher
DischargeEndSOC@Grid value (above 50% for example). So that there will be some
energy in battery when a grid failure occurs.

12
5Mounting
5.1 Requirements for Mounting
• Check to make sure the installation site does not fall into any of the following conditions:
If it does, then a risk assessment will be required.
No direct sunlight
No rain exposure
No snow lay up
Direct sunlight
Rain exposure
Snow lay up
Position
Min. size
Left
600
Right
600
Top
600
Bottom
600
Front
300
Clearance Recommendation

13
Additional Notes:
• The inverter must be installed in a ventilated environment to ensure good heat dissipation.
• DO NOT install the inverter in a place where personnel are likely to come into contact with
its enclosure and heat sinks because these parts are extremely hot during operation.
• Select an optimal mounting location for safe operation, long service life and expected
performance. Make sure the installation avoids the following conditions:
• Unsafe due to assessment of occupational health safety risks.
• The ambient temperature is outside the range of tolerable ambient temperature (-20°C to
+60°C, -4°F to+140°F).
• Higher than the altitude of 2,000m above sea level. Above 2000m the inverter output will
be de-rated.
• Close to flammable materials or areas where flammable materials are stored.
• Prone to be damaged by seawater.
• Prone to be flooded or high levels of snowfalls.
• Close to corrosive gas or liquid (for example, locations where chemicals are processed or
stored).
• Exposed to direct sunlight or in an enclosure exposed to direct sunlight.
• Little or no airflow
• Mounted on a surface without suitable fire/heat rating.
• Mounted on a wall without suitable load bearing capability.
• High humidity.
• Site is considered unsafe because of local regulations.
• Confined space without adequate airflow.
• Area subject to sand or dust storms.
• Exposed to steam, vapor, or water.
• Near antenna and/or data cables.
• Electrical Installation & Maintenance in Australia shall be conducted by a licensed
electrician and shall comply with Australia National Wiring Rules.

14
5.2 Mounting the Inverter (with AIO2-BTLV-5KWH battery)
Procedure:
STEP 1:
• Drill holes into the wall (φ=12mm, drilling depth≥ 65mm)
• The dimensions of the back of the product are as follows (note: the height of the
bottom row of holes≥200mm)
• Unscrew the M8-60 expansion screws and put the expansion head into the
drilled hole.

15
STEP 2:
• Fix the battery-bracket to
the wall with 5 expansion
bolts (M8-60).
STEP 3:
• Lift and hang the battery to
the battery-bracket.
• Note: Make sure that the 4
hooks of the bracket are all
engaged, otherwise it will
not be strong enough.
STEP 4:
• Install the outer frame of the
wiring area.
• Place the frame of the wiring
area on the battery, align the
outer frame, and screw the
three M5-10 stainless steel
Phillips head screws into the
three holes marked by the
arrows.

16
STEP 5:
• Fix the outer frame to the
wall with 3 *M8-60 screws.
STEP 6:
• Install and secure the inverter-bracket on the wall with 5*M8-60 hex screws.
• Fix the inverter-bracket to the frame of the wiring area with 3 *M5-10 Phillips
head screws.

17
STEP 7:
• Lift and hang the Inverter to the bracket and
secure with screw.
• Make sure the 4 mounting ears are perfectly
engaged with the bracket.
STEP 8:
• After the battery and inverter are wired, buckle the cover of the wiring area.