Solplanet ASW LT Series User manual

User manual UM0003_ASW15-20k-LT_EN_V01_0121 1
Solplanet 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 ........................................................................................ 6
2.1 Intended use ....................................................................... 6
2.2 Important safety information ................................................ 8
2.3 Symbols on the type label ................................................. 10
3 Unpacking ............................................................................... 11
3.1 Scope of delivery .............................................................. 11
3.2 Check for transport damage .............................................. 12
4 Mounting ................................................................................. 13
4.1 Requirements for mounting ............................................... 13
4.2 Mounting the inverter ........................................................ 16
5 Electrical connection ............................................................... 20
5.1 Safety ................................................................................ 20
5.2 Overview of the connection area ....................................... 21
5.3 Electrical connection diagram with a separate DC isolator21
5.4 AC Connection .................................................................. 22
5.4.1 Conditions for the AC connection ............................... 22
5.4.2 Grid connection .......................................................... 26
5.4.3 Additional grounding connection................................. 28
5.5 DC connection .................................................................. 29

2 User manual UM0003_ASW15-20k-LT_EN_V01_0121
5.5.1 Requirements for the DC connetion ........................... 29
5.5.2 Assembling the DC connectors .................................. 30
5.5.3 Disassembling the DC connectors .............................. 32
5.5.4 Connecting the PV Array ............................................ 33
5.6 Conmunication equipment connection .............................. 36
5.6.1 Mounting the WiFi/GPRS Stick ................................... 36
5.6.2 The RS485 connection ............................................... 37
6 Communication ....................................................................... 39
6.1 System monitoring via WIFI .............................................. 39
6.2 System monitoring via RS485 ........................................... 40
6.3 Active power control with Smart meter .............................. 41
6.4 Active power control via demand response enabling device
(DRED) ................................................................................... 43
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 ............................................................................. 46
8 Display .................................................................................... 47
8.1 Overview of the control panel ............................................ 47
8.2 LED indicators ................................................................... 47
8.2.1. LED1~LED5 Green power indicator .......................... 47
8.2.2. LED6 Yellow communication indicator. ..................... 48
8.2.3. LED7 Red fault indicator. ........................................... 48
9 Disconnecting the inverter from voltage sources .................... 49

User manual UM0003_ASW15-20k-LT_EN_V01_0121 3
10 Technical data ....................................................................... 51
10.1 DC input data .................................................................. 51
10.2 AC output data ................................................................ 52
10.3 General data ................................................................... 54
10.4 Safety regulations ........................................................... 55
11 Troubleshooting .................................................................... 55
12 Maintenance ......................................................................... 60
12.1 Cleaning the contacts of the DC-switch .......................... 60
12.2 Cleaning the heat sink ..................................................... 60
12.3 Maintaining the fan .......................................................... 61
13 Recycling and disposal ......................................................... 62
14 EU Declaration of Conformity ................................................ 63
15 Warranty ............................................................................... 63
16 Contact.................................................................................. 64

4 User manual UM0003_ASW15-20k-LT_EN_V01_0121
1 Notes on this Manual
1.1 General Notes
Solplanet inverter is a transformerless solar inverter with two
independent MPP trackers. It converts the direct current (DC)
from the photovoltaic (PV) arrays to grid-compliant alternating
current (AC) and feeds it into the grid.
1.2 Area of Validity
This manual describes the mounting, installation, commissioning
and maintenance of the following Solplanet inverters:
ASW15K-LT
ASW20K-LT
Observe all documentation that accompanies the inverter. Keep
them in a convenient place and available at all times.
1.3 Target group
This manual 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

User manual UM0003_ASW15-20k-LT_EN_V01_0121
5
• 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
• Knowledge of all 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.

6 User manual UM0003_ASW15-20k-LT_EN_V01_0121
2 Safety
2.1 Intended use
1. The inverter converts the direct current from the PV arrays into
grid-compliant alternating current.
2. The inverter is suitable for indoor and outdoor use.
3. The 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 the inverter.
4. PV modules with a high capacity to ground must only be used
if their coupling capacity does not exceed 7.15μF.
5. When the PV modules are exposed to light, a DC voltage is
supplied to the inverter.
6. When designing the PV power plants, ensure that the values
comply with the permitted operating range of all components at
all times.
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 UM0003_ASW15-20k-LT_EN_V01_0121
7
7. The inverter 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 UM0003_ASW15-20k-LT_EN_V01_0121
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 product.
• Children must be supervised to ensure that they do not play
with this device.
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 UM0003_ASW15-20k-LT_EN_V01_0121
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.

10 User manual UM0003_ASW15-20k-LT_EN_V01_0121
2.3 Symbols on the type label
Symbol Explanation
Beware of a danger zone
This symbol indicates that the product mus 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 product together with the
household waste but in accordance with the
disposal regulati
ons 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.

User manual UM0003_ASW15-20k-LT_EN_V01_0121
11
Capacitors discharge
Before
opening the covers, the inverter must be
disconnected
from the grid and PV array. Wait at
least 5 minutes to allow the
energy storage
capacitors to fully discharge.
Observe the documentation
Observe all documentation supplied with the
product
3 Unpacking
3.1 Scope of delivery
Obje Description Quantit
A
Inverter
1 piece
B
Wall bracket
1 piece
C
DC connector
4 pairs
D
Communication connector(optional)
1 piece
E
AC connector
1 piece
F
Screw accessory
1 set
G
Documentation
1 set
H
WiFi/GPRS Stick(optional)
1 piece
A B C D

12 User manual UM0003_ASW15-20k-LT_EN_V01_0121
E F G H
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 UM0003_ASW15-20k-LT_EN_V01_0121
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.
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 UM0003_ASW15-20k-LT_EN_V01_0121
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
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.
Direction Min. clearance (mm)
above 500
below 500
sides 300

User manual UM0003_ASW15-20k-LT_EN_V01_0121
15
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°.

16 User manual UM0003_ASW15-20k-LT_EN_V01_0121
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.
4.2 Mounting the inverter
Mounting procedure:
Risk of injury when lifting the inverter, or if it is dropped
The weight of Solplanet inverter is max. 25.8 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.
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.

User manual UM0003_ASW15-20k-LT_EN_V01_0121
17
1. Use the wall bracket as a drilling template and mark the
positions of the drill holes, then drill 3 holes (Φ10) to a depth
about 70mm. During operation, keep the drill vertical to the
wall, and hold the drill steady to avoid tilted holes.
2. After cleaning the dust and other objects from the holes, place
3 wall anchors into the holes, then attach the wall bracket to
the wall using the hexagon head screw delivered with the
inverter.
Risk of injury due to the inverter falls down
If the depth and distance of the holes is not correct, the
inverter maybe fall down from the wall.
•Before inserting the wall anchors, measure the depth and
distance of the holes.

18 User manual UM0003_ASW15-20k-LT_EN_V01_0121
3. Hold the inverter using the handles at the corners, attach the
inverter onto the wall bracket tilted slightly downwards.
4. Check both sides of the outer fin of the inverter to ensure that it
is securely in place.
5. Attach the outer fins of heat sink to both sides of the wall
bracket using M4 screws. (screw driver type: PH2, torque: 2.5
Nm).

User manual UM0003_ASW15-20k-LT_EN_V01_0121
19
6. There are holes in the side of inverter box, which can be
installed with an anti-theft lock according to customer's
needs. The anti-theft lock is self provided by the customer.
Dismante the inverter in reverse order.