Solplanet ASW8K-LT-G2 Three Phase String Inverters User Guide

: June 12, 2024
: solplanet

Table of Contents

Solplanet ASW8K-LT-G2 Three Phase String Inverters
Product Information
Safety Instructions
Mounting Environment
Inverter’s Mounting
AC Connection
Communication setup
Commissioning
EU Declaration of Conformity
Contact
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Solplanet ASW8K-LT-G2 Three Phase String Inverters

Product Information

The product in question is an inverter with the model numbers ASW8K-LT-G2, ASW10K-LT-G2, ASW12K-LT-G2, ASW13K-LT-G2, ASW15K-LT-G2, and ASW17K-LT-G2. It complies with Electromagnetic compatibility 2014/30/EU, Low Voltage Directive 2014/35/EU, and Radio Equipment Directive 2014/53/EU. The inverter is designed to be used with PV modules of protection class II (in accordance with IEC 61730, application class A) and should not be connected to any other sources of energy.

Safety Instructions

The contents of the user manual may be updated. Refer to the latest version for accurate information. The user manual serves as a guide and does not guarantee any statements, information, or suggestions.
Only technicians who have read and understood the user manual should install, commission, operate, and maintain the product.
Ensure that the PV modules used are of protection class II and have a capacitance to ground not exceeding 1F.
Be aware that the PV modules generate high DC voltages when exposed to sunlight, which can result in electric shock if touched.
All components of the product must operate within their permitted operating ranges.
The contents of this document may be updated due to product upgrades or other reasons. Unless otherwise specified, this document only works as guide. All statements, information and suggestions in this document do not constitute any guarantee.
This product can only be installed, commissioned, operated and maintained by technicians who have carefully read and fully understood the user manual.
This product must only be connected with PV modules of protection class II (in accordance with IEC 61730, application class A). PV modules with a high capacitance to ground must only be used if their capacity does not exceed 1μF. Do not connect any sources of energy other than PV modules to the product.
When exposed to sunlight, the PV modules generate dangerous high DC voltages which is present in the DC cable conductors and live components. Touching live DC cable conductors and live components can result in lethal injuries due to electric shock.
All components must remain within their permitted operating ranges at all times.
The product complies with Electromagnetic compatibility 2014/30/EU, Low Voltage Directive 2014/35/EU and Radio Equipment Directive 2014/53/EU.

Mounting Environment

Install the inverter out of the reach of children.
To ensure optimal performance and longevity, maintain recommended clearances between the inverter and other objects.
1. Ensure that the inverter is installed out of the reach of children.
2. To ensure best operating status and prolonged service life, the ambient temperature of the location should be ≤40°C.
3. To avoid direct sunlight, rain, snow, pooling of water on the inverter, it is suggested to mount the inverter in places which are shaded during the majority of the day or to install an external cover that provides shade for the inverter. Do not place a cover directly on top of the inverter.
4. The mounting condition must be suitable for the weight and size of the inverter. The inverter is suitable to be mounted on a solid wall that is vertical or tilted backwards (Max. 15°). It is not recommended to install the inverter on walls made of plasterboards or similar materials. The inverter may emit noise during operation.
5. To ensure adequate heat dissipation, the recommended clearances between the inverter and other objects is shown in the image to the right:

Scope of Delivery
Details of the product’s scope of delivery are not provided in the user manual extract.

Solplanet- ASW8K-LT-G2- Three -Phase- String- Inverters -
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Inverter’s Mounting

Use a 10mm bit to drill 3 holes at a depth of about 70mm according to the location of the wall mounting bracket.
Insert three wall plugs into the wall and fix the mounting bracket using three Screws (SW10).
Hang the slot on the back of the inverter to the hook on the top of the mounting bracket.
Secure the inverter to the mounting bracket on both sides using two M5 screws. Use a screwdriver with type PH2 and apply a torque of 2.5Nm.

AC Connection

Insert the PE conductor, N conductor, and L conductors (L1, L2, and L3) into the OT terminal and connect them to the corresponding terminals of the AC connector following the indicated arrows. Tighten the screws using the supplied hex key with a suggested torque of 2.0 Nm.
Secure the terminal block with a plastic clamp, screw the threaded sleeve body onto the AC connector, and tighten the threaded nut.
Insert the AC connector into the output terminal of the inverter’s AC connector and turn clockwise to tighten.

Ensure all electrical installations comply with local and national rules. Disconnect all DC switches and AC circuit breakers and isolate all power sources before making any electrical terminations. The inverter must be correctly grounded. In case of a poor ground connection, the inverter will report a grounding error. Verify the firm grounding or contact AISWEI service for assistance.

DANGER

All electrical installations must be done in accordance with all local and national rules.
Ensure that all DC switches and AC circuit breakers have been disconnected and all power sources have been electrically isolated before any electrical terminations have been made. High voltages produced by the inverter may lead to electrical shock.
In accordance with safety regulations, the inverter needs be correctly grounded. When a poor ground connection (PE) occurs, the inverter will report PE grounding error. Please check and ensure that the inverter is grounded firmly or contact AISWEI service.
- Strip the AC cable as shown in the figure , and crimp the copper wire to the appropriate OT terminal (according to DIN 46228-4, provided by the customer).
  Object| Description| Value
  ---|---|---
  A| External diameter| 18-21mm
  B| Copper conductor cross-section| 4-16mm2
  C| Stripping length of the insulated conductors| 12mm
  D| Stripping length of the cable outer sheath| 75mm
  Note: the PE conductor is at least 5mm longer than the L and N conductors.
- Insert the PE conductor, N conductor and L conductors (L1, L2 and L3) into the OT terminal, insert them into the corresponding terminals of the AC connector in the order as shown by the following arrows, and tighten the screws with the supplied hex key with a suggested torque of 2.0 Nm.
- Secure the terminal block with a plastic clamp, screw the threaded sleeve body onto the AC connector, and tighten threaded nut.
- Insert the AC connector into the output terminal of the AC connector corresponding to the inverter and turn clockwise to tighten.
- If required, you can connect a second protective conductor as equipotential bonding.

Object	Description
M5 screw	Screwdriver type: PH2, torque: 2.5Nm
OT terminal lug	Customer provided, type: M5
Grounding cable	Copper conductor cross-section: 4-16mm2

DC connection

DANGER
- Make sure PV modules have good insulation against ground.
- On the coldest day based on statistical records, the Max. open-circuit voltage of the PV modules must not exceed the Max. input voltage of the inverter.
- Check the polarity of DC cables.
- Ensure that DC switch has been disconnected.
- Do not disconnect DC connectors under load.
1. Please refer to “DC Connector Installation Guide”.
2. Before DC connection, insert the DC plug connectors with sealing plugs into DC input connectors of the inverter to ensure protection degree.

Communication setup

Separate communication cables from power cables and serious interference sources.
The communication cables must be CAT-5E or higher-level shield cables. Pin assignment complies with EIA/TIA 568B standard. For outdoor use, the communication cables must be UV-resistant. The total length of communication cable cannot exceed 1000m.
If only one communication cable is connected, insert a sealing plug into the unused hole of sealing ring of the cable gland.
Before connecting communication cables, ensure the protective film or communication plate attached to the communication opening on the inverter is sealed tightly.

COM1 &COM2: RS485

RS485 cable pin assignment as below, strip the wire as shown in the figure, and crimp the copper wire to the appropriate OT terminal (according to DIN 46228-4, provided by the customer)
Unscrew the communication port cover cap in the following arrow sequence and insert the network cable into the RS485 communication client attached.
Insert the network cable into the corresponding communication terminal of the machine according to the arrow sequence, tighten the thread sleeve, and then tighten the forcing nut at the tail.

COM3: WiFi/4G Solplanet- ASW8K-LT-G2- Three -Phase- String- Inverters -
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Only applicable to the company’s products, can’t be connected to other USB devices.
The connection refers to “4G/ WiFi-stick User Manual”.

Commissioning

Check that the inverter is grounded reliably.
Check that the ventilation condition surrounding the inverter is good.
Check that the grid voltage at the point of connection of the inverter is within the permitted range.
Check that the sealing plugs in DC connectors and the communication cable gland are sealed tightly.
Check that grid connection regulations and other parameter settings meet safety requirements.
1. Switch on AC circuit breaker between the inverter and the grid.
2. Switch on DC switch.
3. Please refer to the AiProfessional/Aiswei App manual for commissioning of the inverter via Wifi.
4. When there is sufficient DC power and the grid conditions are met, the inverter will start to operate automatically.

EU Declaration of Conformity

Within the scope of the EU directives:

Electromagnetic compatibility 2014/30/EU (L 96/79-106 ，March 29, 2014)(EMC)
Low voltage directive 2014/35/EU (L 96/357-374 ，March 29, 2014)(LVD)
Radio equipment directive 2014/53/EU (L 153/62-106 ，May 22, 2014)(RED)

AISWEI Technology (Shanghai) Co., Ltd. confirms herewith that the inverters mentioned in this document are in compliance with the fundamental requirements and other relevant provisions of the above mentioned directives. The entire EU Declaration of Conformity can be found at www.aiswei-tech.com.

Contact

If you have any technical problems with our products, please contact our service. Provide the following information to assist in providing you with the necessary assistance: