Solplanet ASW LT-G3 Series User manual

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 1
ASW LT-G3 series inverter Table of Contents
1 Notes on this Manual .............................................................................................................4
1.1 General Notes.................................................................................................................4
1.2 Area of Validity................................................................................................................4
1.3 Target group....................................................................................................................5
1.4 Symbols used in this manual.........................................................................................6
2 Safety.......................................................................................................................................7
2.1 Intended use....................................................................................................................7
2.2 Important safety information..........................................................................................8
2.3 Symbols on the label....................................................................................................10
3 Unpacking..............................................................................................................................12
3.1 Scope of delivery...........................................................................................................12
3.2 Check for transport damage........................................................................................12
4 Mounting................................................................................................................................13
4.1 Requirements for mounting.........................................................................................13
4.2 Mounting the inverter....................................................................................................17
5 Electrical connection............................................................................................................21
5.1 Safety..............................................................................................................................21
5.2 Electrical Connection Panel.........................................................................................22
5.3 Electrical connection diagram with a separate DC isolator.....................................22
5.4 AC Connection..............................................................................................................23
5.4.1 Conditions for the AC connection.......................................................................23
5.4.2 Grid connection.....................................................................................................27
5.4.3 Additional grounding connection........................................................................29
5.5 DC connection...............................................................................................................30

2 User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622
5.5.1 Requirements for the DC connetion ..................................................................30
5.5.2 Assembling the DC connectors..........................................................................31
5.5.3 Disassembling the DC connectors.....................................................................33
5.5.4 Connecting the PV Array.....................................................................................35
5.6 Conmunication equipment connection.......................................................................37
5.6.1 Connect the communication line with RJ45 socket.........................................37
5.6.2 Mounting the COM3: WiFi/4G.............................................................................39
6 Communication.....................................................................................................................40
6.1 System monitoring via WLAN or 4G ..........................................................................40
6.2 Active power control with Smart meter......................................................................41
6.3 Remote firmware update..............................................................................................42
6.4 Active power control via demand response enabling device (DRED)...................42
6.5 Communication with the third party device ...............................................................43
6.6 Earth fault alarm............................................................................................................44
7 Commissioning .....................................................................................................................45
7.1 Electrical check .............................................................................................................45
7.2 Mechanical check .........................................................................................................46
7.3 Safety code check.........................................................................................................47
7.4 Start-up...........................................................................................................................47
8 Display....................................................................................................................................49
8.1 Overview of the control panel......................................................................................49
8.2 LED indicators...............................................................................................................50
9 Disconnecting the inverter from voltage sources.............................................................51
10 Technical data.....................................................................................................................53
10.1 DC input data ..............................................................................................................53
10.2 AC output data............................................................................................................55

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 3
10.3 General data................................................................................................................58
10.4 Safety regulations.......................................................................................................60
10.5 Tools and torque.........................................................................................................61
11 Troubleshooting..................................................................................................................63
12 Maintenance........................................................................................................................66
12.1 Cleaning the contacts of the DC-switch...................................................................66
12.2 Cleaning the heat sink................................................................................................66
13 Recycling and disposal......................................................................................................67
14 EU Declaration of Conformity...........................................................................................67
15 Warranty..............................................................................................................................68
16 Contact.................................................................................................................................68

4 User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622
1 Notes on this Manual
1.1 General Notes
ASW LT-G3 series inverter is a three-phase transformerless
string inverter with three to three independent MPPTs. It converts
the direct current (DC) generated by the photovoltaic (PV)
module into a three-phase alternating current (AC) and feeds it
into the utility grid.
1.2 Area of Validity
This manual describes the mounting, installation, commissioning
and maintenance of the following inverters:
ASW40K-LT-G3
ASW36K-LT-G3
ASW33K-LT-G3
ASW30K-LT-G3
ASW27K-LT-G3
ASW25K-LT-G3
Please read this manual carefully before using this product, keep
it in a convenient place and make it available at all times.

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 5
1.3 Target group
This document is for qualified electricians only, who must perform
the tasks exactly as described.
All persons installing inverters must be trained and experienced
in general safety which must be observed when working on
electrical equipment. Installation personnel should also be
familiar with local requirements, rules and regulations.
Qualified persons must have the following skills:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated
with installing, repairing and using electrical devices and
installations
• Training in the installation and commissioning of electrical
devices and installations
• Knowledge of the applicable laws, standards and directives
• Knowledge of and compliance with this document and all safety
information.

6 User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622
1.4 Symbols used in this manual
Safety instructions will be highlighted with the following symbols:
DANGER indicates a hazardous situation which, if not be
avoided, will result in death or serious injury.
WARNING indicates a hazardous situation which, if not be
avoided, can result in death or serious injury.
CAUTION indicates a hazardous situation which, if not be
avoided, can result in minor or moderate injury.
NOTICE indicates a situation which, if not be avoided, can
result in property damage.
INFORMATION that is important for a specific topic or goal,
but is not safety-relevant.

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 7
2 Safety
2.1 Intended use
1. ASW LT-G3 series inverter converts the direct current from the
PV arrays into grid-compliant alternating current.
2. ASW LT-G3 series inverter is suitable for indoor and outdoor
use.
3. ASW LT-G3 series inverter must only be operated with PV
arrays (PV modules and cabling) of protection class II in
accordance with IEC 61730, application class A. Do not connect
any sources of energy other than PV modules to ASW LT-G3
series inverter.
4. PV modules with a high capacity to ground must only be used
if their coupling capacity does not exceed 5.0μF.
5. When the PV modules are exposed to light, a DC voltage is
supplied to this inverter.
6. When designing the PV power plants, ensure that the values
comply with the permitted operating range of all components at
all time.
7. The product must only be used in countries for which it is
approved or released by AISWEI and the grid operator.
8. Use this product only in accordance with the information
provided in this documentation and with the locally applicable
standards and directives. Any other application may cause
personal injury or property damage.
9. The type label must remain permanently attached to the
product.

8 User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622
2.2 Important safety information
Danger to life due to electric shock when live components or
cables are touched
• All work on the inverter must only be carried out by qualified
personnel who have read and fully understood all safety
information contained in this manual.
• Do not open the inverter.
• Children must be supervised to ensure that they do not play
with the inverter.
Danger to life due to high voltages of the PV array
When exposed to sunlight, the PV array generates dangerous
DC voltage which is present in the DC conductors and the live
components of the inverter. Touching the DC conductors or
the live components can lead to lethal electric shocks. If you
disconnect the DC connectors from the inverter under load,
an electric arc may occur leading to electric shock and burns.
• Do not touch non-insulated cable ends.
• Do not touch the DC conductors.
• Do not touch any live components of the inverter.
• Have the inverter mounted, installed and commissioned only
by qualified persons with the appropriate skills.
•If an error occurs, have it rectified by qualified persons only.
•Prior to performing any work on the inverter, disconnect it
from all voltage sources as described in this document (see
Section 9 "Disconnecting the Inverter from Voltage Sources").

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 9
Risk of injury due to electric shock
Touching an ungrounded PV module or array frame can
cause a lethal electric shock.
• connect and ground the PV modules, array frame and
electrically conductive surfaces so that there is continuous
conduction.
Risk of burns due to hot enclosure parts
Some parts of the enclosure can get hot during operation.
• During operation, do not touch any parts other than the
enclosure lid of the inverter.
Damage to the inverter due to electrostatic discharge
Internal components of the inverter can be irreparably
damaged by electrostatic discharge.
• Ground yourself before touching any component.

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2.3 Symbols on the label
Symbol
Explanation
Beware of a danger zone
This symbol indicates that the inverter must be
additionally grounded if additional grounding or
equipotential bonding is required at the installation
site.
Beware of high voltage and operating current
The inverter operates at high voltage and current.
Work on the inverter must only be carried out by
skilled and authorized electricians.
Beware of hot surfaces
The inverter can get hot during operation. Avoid
contact during operation.
WEEE designation
Do not dispose of the inverter together with the
household waste but in accordance with the
disposal regulations for electronic waste applicable
at the installation site.
CE marking
The product complies with the requirements of the
applicable EU directives.
Certification mark
The product has been tested by TUV and got the
quality certification mark.
RCM Mark
The product complies with the requirements of the
applicable Australian standards.
Capacitors discharge
Before opening the covers, the inverter must be
disconnected from the grid and PV array. Wait at
least 25 minutes to allow the energy storage

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 11
capacitors to fully discharge.
Observe the documentation
Observe all documentation supplied with the
product

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3 Unpacking
3.1 Scope of delivery
Obje
ct
Description
Quantity
A
Inverter
1 piece
B
Wall mounting bracket
1 piece
C
DC connector
2 pieces
D
Screw accessory
1 piece
E
AC connector
1 piece
F
4G/ WiFi Stick (optional)
1 piece（optional）
G
RS485 communication terminal
1 piece（optional）
H
Documentation
1 piece
Please carefully check all the components in the carton. If
anything is missing, contact your dealer at once.
3.2 Check for transport damage
Thoroughly inspect the packaging upon delivery. If you detect
any damage to the packaging which indicates the inverter may
have been damaged, inform the responsible shipping company
immediately. We will be glad to assist you if required.

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 13
4 Mounting
4.1 Requirements for mounting
1. Be sure that the inverter is mounted out of the reach of
children.
2. Mount the inverter in areas where it cannot be touched
inadvertently.
3. Ensure good access to the inverter for installation and
possible service.
4. The ambient temperature should be below 40°C to ensure
optimal operation.
5. Observe the minimum clearances to walls, other inverters, or
objects as follows to ensure sufficient heat dissipation.
Direction
Min. clearance (mm)
above
500
below
500
sides
500
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause
fires.
• Do not mount the inverter on flammable construction
materials.
• Do not mount the inverter in areas where flammable
materials are stored.
•Do not mount the inverter in areas where there is a risk of
explosion.

14 User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622
Clearances for one inverter
Clearances for multiple inverters

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 15
6. In order to avoid power reduction caused by overheating, do
not mount the inverter in a location that allows long-term
exposure to direct sunlight.
7. Ensure optimum operation and extend service life, avoid
exposing the inverter to direct sunlight, rain and snow.
8. The mounting method, location and surface must be suitable
for the inverter's weight and dimensions.
9. If mounted in a residential area, we recommend mounting the
inverter on a solid surface. Plasterboard and similar materials
are not recommended due to audible vibrations when in use.
10.Don’t put any objects on the inverter. Do not cover the
inverter.
11.Mount the inverter vertically or tilted backward by max.15°.

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12.Never install the inverter horizontally, or with a forward tilt or
with a backward tilt or even with upside down. The horizontal
installation can result in damage to the inverter.
13.Mount the inverter at eye level for easy inspection.

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 17
4.2 Mounting the inverter
Mounting procedure:
1. Use a Φ10mm bit to drill 3 holes at a depth of about 70mm
according to the location of the wall mounting bracket
Risk of injury when lifting the inverter, or if it is dropped
The weight of Solplanet inverter is max. 43 kg. There is risk of
injury if the inverter is lifted incorrectly or dropped while being
transported or when attaching it to or removing it from the wall
bracket.
• Transport and lift the inverter carefully.
Risk of injury due to damaged cables
There may be power cables or other supply lines (e.g. gas or
water) routed in the wall.
• Ensure that no lines are laid in the wall which could be
damaged when drilling holes.

18 User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622
2. Insert three wall plugs into the wall and fix the mounting
bracket to the wall by inserting three Screws (SW10).
Risk of injury due to the product falls down
If the depth and distance of the holes is not correct, the
product maybe fall down from the wall.
•Before inserting the wall anchors, measure the depth and
distance of the holes.

User Manual UM0016_ASW 25K-40K-LT-G3_EN_V02_0622 19
3. Hang the slot on the back of the inverter to the hook on the
top of the mounting bracket.
4. Secure the inverter to the mounting bracket on both sides
using two M5 screws. Screwdriver type:PH2, torque:2.5Nm.