Solplanet ASW LT-G2 Pro Series User manual

UM0038_ASW40-50K-LT-G2 Pro_EN_V01_0223 1
ASW LT-G2 Pro 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........................................................................................................................4
1.4 Symbols used in this manual................................................................................................5
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 ............................................................................................. 13
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 .............................................................................28
5.5 DC connection..................................................................................................................29

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5.5.1 Requirements for the DC connetion ..........................................................................29
5.5.2 Assembling the DC connectors.................................................................................30
5.5.3 Disassembling the DC connectors .............................................................................31
5.5.4 Connecting the PV Array ..........................................................................................33
5.6 Conmunication equipment connection.............................................................................34
5.6.1 Mounting the WiFi or 4G Stick ..................................................................................34
5.6.2 Connect the communication line with RJ45 socket ..................................................36
5.6.3 Connect the communication line with terminal block...............................................39
5.6.4 Connect the smart meter cable ................................................................................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 ...............................................................................................................43
7 Commissioning.........................................................................................................................44
7.1 Electrical check..................................................................................................................44
7.2 Mechanical check .............................................................................................................45
7.3 Safety code check.............................................................................................................45
7.4 Start-up.............................................................................................................................45
8 Display .....................................................................................................................................47
8.1 Overview of the control panel ...........................................................................................47
8.2 LED indicators...................................................................................................................47
9 Disconnecting the inverter from voltage sources .....................................................................48
10 Technical data ........................................................................................................................49

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10.1 DC input data...................................................................................................................49
10.2 AC output data................................................................................................................50
10.3 General data.................................................................................................................... 51
10.4 Safety regulations ...........................................................................................................52
10.5 Tools and torque..............................................................................................................53
11 Troubleshooting ......................................................................................................................54
12 Maintenance ...........................................................................................................................57
12.1 Cleaning the contacts of the DC-switch........................................................................... 57
12.2 Cleaning the heat sink .....................................................................................................57
13 Recycling and disposal............................................................................................................58
14 EU Declaration of Conformity .................................................................................................58
15 Warranty.................................................................................................................................59
16 Contact...................................................................................................................................59

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1 Notes on this Manual
1.1 General Notes
ASW LT-G2 Pro series inverter is a three-phase transformerless string inverter with three to five
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-G2 Pro
ASW45K-LT-G2 Pro
ASW50K-LT-G2 Pro
Please read this manual carefully before using this product, keep it in a convenient place and
make it available at all times.
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

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• 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.
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.

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INFORMATION that is important for a specific topic or goal, but is not safety-relevant.

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2 Safety
2.1 Intended use
1. ASW LT-G2 Pro series inverter converts the direct current from the PV arrays into grid-
compliant alternating current.
2. ASW LT-G2 Pro series inverter is suitable for indoor and outdoor use.
3. ASW LT-G2 Pro 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-G2 Pro 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.

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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.

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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").
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.

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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.
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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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 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
Object
Description
Quantity
A
Inverter
1 piece
B
Wall mounting bracket
1 piece
C
Bracket accessory
2 pieces
D
AC/COM Cover
1 piece
E
Screw accessory
1 piece
F
4G/ WiFi Stick (optional)
1 piece
G
DC connector
6 pairs(30-36K), 8 pairs(40-45K), 10
pairs(50K)
H
Documentation
1 piece
I
AC insulation sheet
1 piece
Please carefully check all the components in the carton. If anything is missing, contact your
dealer at once.

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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.
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.
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.

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5. Observe the minimum clearances to walls, other inverters, or objects as follows to ensure
sufficient heat dissipation.
Clearances for one inverter
Clearances for multiple inverters
Direction
Min. clearance (mm)
above
500
below
500
sides
500

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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.

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4.2 Mounting the inverter
Mounting procedure:
1. Use the wall bracket as a drilling template and mark the positions of the drill holes, then drill 3
holes (Φ12) to a depth about 70mm. During operation, keep the drill vertical to the wall, and
hold the drill steady to avoid tilted holes.
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.

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2. After cleaning the dust and other objects from the holes, place 3 wall anchors (M8x60) into
the holes, then attach the wall bracket to the wall using the hexagon head screw delivered
with the inverter. (SW13)
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.

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3. Use screws (M5x12) to lock the bracket support on both sides of the inverter. (Torque M5:
2.5Nm)
4. Hold the inverter using the handles at the corners, attach the inverter onto the wall bracket
tilted slightly downwards.