Solplanet ASW LT G2 Series User Manual
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Solplanet ASW LT G2 Series User Manual

Three phase string inverters
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  • Page 2: Table Of Contents

    ASW LT-G2 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 ..........5 2 Safety ..................7 2.1 Intended use ...............
  • Page 3 5.4.2 Grid connection ............26 5.4.3 Additional grounding connection......... 28 5.5 DC connection ..............29 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 ......
  • Page 4 8 Display ..................46 8.1 Overview of the control panel ..........46 8.2 LED indicators ..............47 9 Disconnecting the inverter from voltage sources ....47 10 Technical data ............... 49 10.1 DC input data ..............49 10.2 AC output data ..............51 10.3 General data ..............

  • Page 5: Notes On This Manual

    1 Notes on this Manual 1.1 General Notes ASW LT-G2 series inverter is a three-phase transformerless string inverter with two 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.

  • Page 6: Target Group

    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.
  • Page 7 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.

  • Page 8: Safety

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

  • Page 9: Important Safety Information

    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.

  • Page 10: Symbols On The Label

    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.
  • Page 11 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.

  • Page 12: Unpacking

    Observe the documentation Observe all documentation supplied with the product 3 Unpacking 3.1 Scope of delivery Obje Description Quantity Inverter 1 piece Wall bracket 1 piece DC connector 2 pairs(8-10K), 3 pairs(12-15K), 4 pairs(17- 20K) AC connector 1 piece Documentation 1 piece Screw accessory 1 piece...

  • Page 13: Check For Transport Damage

    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.

  • Page 14: Mounting

    4 Mounting 4.1 Requirements for mounting 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.
  • Page 15 Direction Min. clearance (mm) above below sides 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.
  • Page 16 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.
  • Page 17 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. UM0005_ASW 8-20K-LT-G2_EN_V03_1121...

  • Page 18: Mounting The Inverter

    4.2 Mounting the inverter Risk of injury when lifting the inverter, or if it is dropped The weight of Solplanet inverter is max. 18.6 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.
  • Page 19 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. 2.
  • Page 20 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: 1.6 Nm).

  • Page 21: Electrical Connection

    5 Electrical connection 5.1 Safety 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.

  • Page 22: Electrical Connection Panel

    5.2 Electrical Connection Panel Object Description DC-switch MPP1 connector (8K/10K has 1 pair of terminals, 12K-20K has 2 pairs of terminals) MPP2 connector (8K-15K has 1 pair of terminals, 17K-20K has 2 pairs of terminals) RS485 Communication interface COM1/2 Communication Stick interface COM3 AC connector Additional grounding screw UM0005_ASW 8-20K-LT-G2_EN_V03_1121...

  • Page 23: Electrical Connection Diagram With A Separate Dc Isolator22

    5.3 Electrical connection diagram with a separate DC isolator Local standards or codes may require that a separate DC isolator should be installed next to the inverter. The separate DC isolator must disconnect each PV string of the inverter so that the entire inverter can be removed if the inverter is faulty.
  • Page 24 Object Description Value External diameter 10…16 mm Conductor cross-section 2.5…6 mm Stripping length of the insulated Approx. 13 conductors Stripping length of the AC cable’s Approx.53 mm outer sheath The PE insulated conductor must be 2 mm longer than the L and N conductors Larger cross-sections should be used for longer leads.
  • Page 25 If an external residual-current protection device is required, please install a type B residual-current protection device with a protection limit of not less than 100mA. Overvoltage category The inverter can be used in grids of overvoltage category III or lower in accordance with IEC 60664-1. This means that it can be permanently connected at the grid-connection point in a building.
  • Page 26 Grounding conductor monitoring The inverter is equipped with a grounding conductor monitoring device. This grounding conductor monitoring device detects when there is no grounding conductor connected and disconnects the inverter from the utility grid if this is the case. Depending on the installation site and grid configuration, it may be advisable to deactivate the grounding conductor monitoring.

  • Page 27: Grid Connection

    5.4.2 Grid connection Procedure: Danger to life due to high voltages in the inverter Touching the live components can lead to lethal electric shocks. • Before performing the electrical connection, ensure that the AC circuit-breaker is switched off and cannot be reactivated. 1.
  • Page 28 4. Push the holding buckle and the sealing plug into the screw sleeve body, and then assemble the terminal block, the screw sleeve body and the tightening nut together. First clamp the terminal block with a plastic clamp, then screw the screw sleeve body onto the terminal block, and finally tighten the tightening nut.

  • Page 29: Additional Grounding Connection

    5.4.3 Additional grounding connection If additional grounding or equipotential bonding is required locally, you can connect additional grounding to the inverter. This prevents touch current if the grounding conductor on the AC connector fails. Procedure: 1. Align the terminal lug with protective conductor. 2.

  • Page 30: Dc Connection

    5.5 DC connection Danger to life due to high voltages in the inverter Touching the live components can lead to lethal electric shocks. • Before connecting the PV generator, ensure that the DC- switch is switched off and that it cannot be reactivated. •...

  • Page 31: Assembling The Dc Connectors

    5.5.2 Assembling the DC connectors Danger to life due to high voltages on DC conductors When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the DC conductors. Touching the DC conductors can lead to lethal electric shocks. •...

  • Page 32: Disassembling The Dc Connectors

    2. Route the stripped cable all the way into the DC connector. Ensure that the stripped cable and the DC connector have the same polarity. 3. Push the swivel nut up to the thread and tighten the swivel nut. (SW15, Torque: 2.0Nm) 5.5.3 Disassembling the DC connectors Danger to life due to high voltages on DC conductors When exposed to sunlight, the PV array generates dangerous...
  • Page 33 Procedure: 1. Make sure DC power is cut off. 2. Unscrew the swivel nut. 3. To release the DC connector, insert a flat-blade screwdriver (blade width: 3.5 mm) into the side catch mechanism and lever open. 4. Carefully pull the DC connector apart. 5.

  • Page 34: Connecting The Pv Array

    5.5.4 Connecting the PV Array Destruction of the inverter due to overvoltage If the voltage of the strings exceeds the maximum DC input voltage of the inverter, it can be destroyed due to overvoltage. All warranty claims become void. • Do not connect strings with an open-circuit voltage greater than the maximum DC input voltage of the inverter.
  • Page 35 Damage to the inverter due to moisture and dust penetration Seal the unused DC inputs with sealing plugs so that moisture and dust cannot penetrate the Inverter. • Make sure all DC connectors are securely sealed. UM0005_ASW 8-20K-LT-G2_EN_V03_1121...

  • Page 36: Conmunication Equipment Connection

    5.6 Conmunication equipment connection 5.6.1 Mounting the WiFi or 4G Stick 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. When the system uses WiFi Stick or 4G Stick monitoring, WiFi Stick or 4G Stick should be connected to COM3 connection in section 5.2.

  • Page 37: Connect The Rs485 Network Cable

    The communication stick interface COM3 is only applicable to AISWEI products and can not be connected to any other USB devices. 5.6.2 Connect the RS485 network cable The inverter can be destroyed by wrong communication wiring • Internal components of the inverter can be irreparably damaged due to incorrect wiring between the power wire and signal wire.
  • Page 38 The network cable meeting the EIA/TIA 568A or 568B standard must be UV resistant if it is to be used outdoors. Cable requirement: - Shielding wire - CAT-5E or higher - UV-resistant for outdoor use - RS485 cable maximum length 1000m Procedure: 1.

  • Page 39: Connect The Smart Meter Cable

    Damage to the inverter due to moisture and dust penetration • If the cable gland are not mounted properly, the inverter can be destroyed due to moisture and dust penetration. All the warranty claim will be invalid. • Make sure the cable gland has been tightened firmly. Disassemble the network cable in reverse order.

  • Page 40: Communication

    6 Communication 6.1 System monitoring via WLAN User can monitor the inverter through the external 4G/WiFi stick module. The connection diagram between the inverter and internet is shown as following two pictures, both two methods are available. Please note that each 4G/WiFi stick can only connect to 5 inverters in method1.

  • Page 41: Active Power Control With Smart Meter

    “AiSWEI cloud”. You can also install the “AiSWEI APP” on a smart phone using Android or an iOS operating system. You can visit the website ( https://solplanet.net/installer-area/#monitoring) for system information. And download the user manual for the AISWEI Cloud Web or AISWEI APP.

  • Page 42: Remote Firmware Update

    Possible reason of communication failure due to incorrect connection • WiFi stick only support single inverter to do active power control. • The overall length of the cable from inverter to smart meter is 100m. The active power limit can be set on “AiSWEI APP” application, the details can be found in the user manual for the AISWEI APP.

  • Page 43: Communication With The Third Party Device

    AiCom. 6.5 Communication with the third party device Solplanet inverters can also connect with one third party device instead of RS485 or WiFi stick, the communication protocol is modbus. For more information, please contact the Service.

  • Page 44: Earth Fault Alarm

    6.6 Earth fault alarm This inverter complies with IEC 62109-2 clause 13.9 for earth fault alarm monitoring. If an Earth Fault Alarm occurs, the red color LED indicator will light up. At the same time, the error code 38 will be sent to the AISWEI Cloud. (This function is only available in Australia and New Zealand) 7 Commissioning 7.1 Electrical check...

  • Page 45: Mechanical Check

    ④ Check the PV generator’s insulation to ground with a multimeter: make sure that insulation resistance to ground is greater than 1MOhm. Danger to life due to the presence of AC-Voltage Touching the live conductors can lead to lethal electric shocks.

  • Page 46: Safety Code Check

    Safety Code Setting Guide in an event where an installer needs to set the country code manually. The Solplanet’s inverters comply with local safety code when leaving the factory. 7.4 Start-up After finishing the electrical and mechanical checks, switch on the miniature circuit-breaker and DC-switch in turn.

  • Page 47: Display

    During periods of low radiation, the inverter may continuously start up and shut down. This is due to insufficient power generated by the PV array. If this fault occurs often, please call service. If the inverter is in “Fault” mode, refer to chapter 11 “Troubleshooting”.

  • Page 48: Led Indicators

    8.2 LED indicators The three LED indicators from top to bottom are: 1. SOLAR power indicator When the inverter is in the standby self-checking state, the white light flashes. Under normal grid-connected working state, the light is always on. In “Fault” mode, the light is off. 2.
  • Page 49 Danger to life due to electric shock when touching exposed DC conductors or DC plug contacts if the DC connectors are damaged or loose The DC connectors can break or become damaged, become free of the DC cables, or no longer be connected correctly if the DC connectors are released and disconnected incorrectly.

  • Page 50: Technical Data

    6. Wait until all LEDs and the display have gone out. 10 Technical data 10.1 DC input data Type 8K-LT- 10K-LT- 12K-LT- 13K-LT- Max. PV modules 12000W 15000W 18000W 19500W power (STC) Max. input voltage/ Rated input 1100V/630V voltage MPPT voltage 150～1000 V range Full load MPPT...
  • Page 51 Maximum reverse current from the inverter in the system for max. 1 Number of MPP trackers Strings per MPP tracker Overvoltage category in accordance with IEC60664-1 ASW 15K- ASW 17K- ASW 20K- Type LT-G2 LT-G2 LT-G2 Max. PV modules 22500W 25500W 30000W Power (STC)

  • Page 52: Ac Output Data

    PV, absolute 2*40A max. Maximum reverse current from the inverter in the system for max. 1 Number of MPP trackers Strings per MPP tracker Overvoltage category in accordance with IEC60664-1 (1) When the DC input voltage is greater than 1000V, the inverter will alarm an error.
  • Page 53 Rated AC Voltage 3/N/PE, 220/380 V, 230/400 V,240/415 V AC voltage range 160 V~300 V Rated AC 50 Hz/ 60 Hz Frequency Operating range at AC power 45 Hz to 55Hz frequency 50 Hz Operating range at AC power 55 Hz to 65Hz frequency 60 Hz Max.
  • Page 54 Overvoltage category in accordance with IEC60664-1 ASW 15K- ASW 17K- ASW 20K- Type LT-G2 LT-G2 LT-G2 Rated output power 15000 W 17000 W 20000 W Max. output active 15000 W 17000 W 20000W power Max. output 15000VA 17000VA 20000VA apparent power Rated AC Voltage 3/N/PE, 220/380 V, 230/400 V,240/415 AC voltage range...
  • Page 55 Adjustable displacement power 0.80 ind - 0.80 cap factor Inrush current (peak <10A @250us and duration) Harmonic distortion (THD) at the rated < 3% power Night-time power <1 W loss Standby power loss <12 W Overvoltage category in accordance with IEC60664-1 (1) The AC voltage range depends on the local safety standards and rules.

  • Page 56: General Data

    10.3 General data ASW 8K-10K- ASW 12K- Type LT-G2 20K-LT-G2 Net weight 17.3 KG 18.6KG Dimensions(L×W×D) 503×435×183 mm Mounting environment Indoor and Outdoor Mounting Wall bracket recommendation Operating temperature -25…+60℃ range Max. permissible value for relative humidity 100% ( non-condensing ) Max.

  • Page 57: Safety Regulations

    10.4 Safety regulations Type ASW LT-G2 Series inverter Internal Integrated overvoltage protection DC insulation Integrated monitoring DC injection Integrated monitoring Grid monitoring Integrated Residual current Integrated monitoring Islanding Integrated (Three-phase monitoring) EN61000-6-1 EMC immunity EN61000-6-2 EN61000-6-3 EMC emission EN61000-6-4 EN61000-3-2, EN61000-3-3 Utility interference EN61000-3-11，EN61000-3-12 UM0005_ASW 8-20K-LT-G2_EN_V03_1121...

  • Page 58: Tools And Torque

    10.5 Tools and torque Tools and torque required for installation and electrical connections. Tools, model Object Torque Torque Screws for the cover 3.0 Nm screwdriver, T25 Screws for wall bracket Torque Screw for second 1.6Nm screwdriver, T20 grounding Flat-head screwdriver, Sunclix DC connector blade with 3.5mm Torque...

  • Page 59: Troubleshooting

    Check electrical Multimeter connection Mark the positions of Marker drill holes Wear ESD glove when ESD glove opening the inverter Wear safety goggle Safety goggle during drilling holes. Wear anti-dust Anti-dust respirator during respirator drilling holes. 11 Troubleshooting When the PV system does not operate normally, we recommend the following solutions for quick troubleshooting.
  • Page 60 permissible range due to local grid conditions, try to modify the values of the monitored operational limits after informing the electric utility company first. If the grid voltage lies within the permitted range and this fault still occurs, please call service. •...
  • Page 61 the inverter is reliable. If this fault occurs often, contact the service. • Check whether the airflow to the heat sink is obstructed. • Check whether the ambient temperature around the inverter is too high. • Check whether the open circuit voltage of each photovoltaic group is ≥1020V.
  • Page 62 If this fault is still being displayed, contact Permanent the service. Fault Warning Warning message code PV1 input over voltage PV2 input over voltage PV1 input over current-software PV1 input over current-hardware PV2 input over current-software PV2 input over current-hardware BUS over voltage-software BUS voltage unbalance (for three phase inverter) Grid voltage over instant...

  • Page 63: Maintenance

    12 Maintenance Normally, the inverter needs no maintenance or calibration. Regularly inspect the inverter and the cables for visible damage. Disconnect the inverter from all power sources before cleaning. Clean the housing, cover and display with a soft cloth. Ensure the heatsink at the rear of the inverter cover is not covered.

  • Page 64: Recycling And Disposal

    AISWEI New Energy Technology (Jiangsu) Co., Ltd. confirms herewith that the inverters described 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 http:// www.solplanet.net. UM0005_ASW 8-20K-LT-G2_EN_V03_1121...

  • Page 65: Warranty

    15 Warranty The factory warranty card is enclosed with the package, please keep well the factory warranty card. Warranty terms and conditions can be downloaded at http:// www.solplanet.net, if required. When the customer needs warranty service during the warranty period, the customer must provide a copy of the invoice, factory warranty card, and ensure the type label of the inverter is legible.
  • Page 66 +31 208 004 844, service.eu@solplanet.net (Netherlands) +48 13 4926 109, service.pl@solplanet.net (Poland) +36 465 00 384, service.hu@solplanet.net (Hungary) +90 850 346 00 24, service.tr@solplanet.net (Turkey) Add.: Barbara Strozzilaan 101, 5e etage, kantoornummer 5.12, 1083 HN, Amsterdam, The Netherlands Rest of the world Service email: service.row@aiswei-tech.com...

This manual is also suitable for:

Asw8k-lt-g2Asw10k-lt-g2Asw12k-lt-g2Asw13k-lt-g2Asw15k-lt-g2Asw17k-lt-g2 ... Show all

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