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

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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 ..........6 2 Safety ..................7 2.1 Intended use ...............
  • Page 3 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 ......35 5.6.1 Mounting the WiFi or 4G Stick ........35 5.6.2 Connect the communication line with RJ45 socket ..
  • Page 4 10 Technical data ............... 51 10.1 DC input data ..............51 10.2 AC output data ..............53 10.3 General data ..............57 10.4 Safety regulations ............58 10.5 Tools and torque ............. 59 11 Troubleshooting ..............60 12 Maintenance ................. 64 12.1 Cleaning the contacts of the DC-switch ......

  • 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 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.

  • 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: Symbols Used In This Manual

    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.

  • Page 8: Safety

    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 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: Symbols On The Label

    2.3 Symbols on the label Explanation Symbol 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.

  • Page 12: Unpacking

    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 3 Unpacking 3.1 Scope of delivery Obje Description Quantity Inverter 1 piece Wall mounting bracket...

  • 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 5. Observe the minimum clearances to walls, other inverters, or objects as follows to ensure sufficient heat dissipation. Direction Min. clearance (mm) above below sides Clearances for one inverter Clearances for multiple inverters UM0011_ASW 30-50K-LT-G2_EN_V03_1121...
  • Page 16 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.
  • 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. UM0011_ASW 30-50K-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. 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.
  • 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 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. UM0011_ASW 30-50K-LT-G2_EN_V03_1121...
  • Page 21 5. Check both sides of the outer fin of the inverter to ensure that it is securely in place. 6. Attach the handles to bottom of the wall bracket using M4 screws. (screw driver type: PH2, torque: 1.6 Nm). Dismante the inverter in reverse order. UM0011_ASW 30-50K-LT-G2_EN_V03_1121...

  • Page 22: 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 23: Electrical Connection Panel

    5.2 Electrical Connection Panel Object Description DC-switch MPP1~5 connector (30K-36K has 6 pair of terminals, 40K-45K has 8 pairs of terminals, 50K has 10 pairs of terminals) Communication Stick interface COM1 RS485 Communication interface COM2 AC terminal Additional grounding screw 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.

  • Page 24: Ac Connection

    5.4 AC Connection 5.4.1 Conditions for the AC connection Cable Requirements The grid connection is made using 5 conductors (L1, L2, L3, N, and PE). We recommend the following requirements for stranded copper conductor. UM0011_ASW 30-50K-LT-G2_EN_V03_1121...
  • Page 25 Object Description Value External diameter 20…42 mm Conductor cross-section 16…50 mm Stripping length of the insulated Matching conductors terminals Stripping length of the AC cable’s Approx.130 outer sheath Note: The outer diameter of the OT terminal must be less than 22mm. The PE insulated conductor must be 2 mm longer than the L and N conductors.
  • Page 26 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 300mA. 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 27 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 28: 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 29: Additional Grounding Connection

    (M4x10), and finally tighten the waterproof connector. (Torque M4:1.6Nm; M6:5Nm; M8:12Nm; M63:SW65,10Nm) 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.

  • Page 30: Dc Connection

    Grounding parts information： Object Explanation M5 screw M5 OT terminal Yellow-green grounding wire 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. The positive connection cables of the PV modules must be fitted with the positive DC connectors. The negative connection cables of the PV modules must be provided with the negative 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.
  • Page 32 Procedure: 1. Strip about 12 mm of the cable insulation. 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.

  • Page 33: Disassembling The Dc Connectors

    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 DC voltage which is present in the DC conductors. Touching the DC conductors can lead to lethal electric shocks. •...

  • Page 34: Connecting The Pv Array

    6. Remove the cable. 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. •...
  • Page 35 the DC connector fits with a DC cable having the wrong polarity, the DC connector must be reassembled again. The DC cable must always have the same polarity as the DC connector. 5. Ensure that the open-circuit voltage of the PV strings does not exceed the maximum DC input voltage of the inverter.

  • 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 Communication Line With Rj45 Socket

    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 communication line with RJ45 socket Danger to life due to electric shock when live components are touched.
  • 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 3. The inverter comes with the impedance matching function of the 485 communication bus. If the communication bus needs to match the impedance, turn the DIP switch to the ON position. If the communication bus does not need to match the impedance, turn the DIP switch to the OFF position.

  • Page 40: Connect The Communication Line With Terminal Block

    5.6.3 Connect the communication line with terminal block Use terminal block cable. Refer to the wiring method as follows. For other steps, refer to section 5.6.2. UM0011_ASW 30-50K-LT-G2_EN_V03_1121...

  • Page 41: 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 42 “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 43: Active Power Control With Smart Meter

    6.2 Active power control with Smart meter The inverter can control active power output via connecting smart meter, following picture is the system connection mode through WiFi stick. The smart meter should support the MODBUS protocol with a baud rate of 9600 and address set 1. Smart meter as above SDM630-Modbus connecting method and seting baud rate method for modbus please refer to it’s user manual.

  • Page 44: Remote Firmware Update

    6.3 Remote firmware update ASW LT-G2 series inverters can update the firmware through 4G/WIFI stick, no need to open the cover for maintenance. For more information, please contact the Service. 6.4 Active power control via demand response enabling device (DRED) DRMs application description •...

  • Page 45: 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 46 Danger to life due to the presence of DC-Voltage Touching the live conductors can lead to lethal electric shocks. • Only touch the insulation of the PV array cables. • Do not touch parts of the sub-structure and frame of the PV array which isn’t grouned.

  • Page 47: Mechanical 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 48 1. Waiting: When the initial voltage of the strings is greater than the minimum DC input voltage but lower than the start-up DC input voltage, the inverter is waiting for sufficient DC input voltage and cannot feed power into the grid. 2.

  • Page 49: Display

    8 Display 8.1 Overview of the control panel The inverter is equipped with a display panel, which has 3 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.

  • Page 50: Disconnecting The Inverter From Voltage Sources

    The light is on when the invert is faulty or when external conditions cannot be grid-connected or when it is working improperly. When there is no fault, the light is off. 9 Disconnecting the inverter from voltage sources Before performing any work on the inverter, disconnect it from all voltage sources as described in this section.
  • Page 51 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 52: Technical Data

    6. Wait until all LEDs and the display have gone out. 10 Technical data 10.1 DC input data ASW 30K- ASW 33K- ASW 36K- Type LT-G2 LT-G2 LT-G2 Max. PV modules 45000W 49500W 54000W Power (STC) Max. input voltage/ Rated input 1100V/630V voltage MPPT voltage...
  • Page 53 Strings per MPP tracker Overvoltage category in accordance with IEC60664-1 ASW 40K- ASW 45K- ASW 50K- Type LT-G2 LT-G2 LT-G2 Max. PV modules 60000W 67500W 75000W Power (STC) Max. input voltage/ Rated input 1100V/630V voltage MPP voltage 200～1000 V range Full load MPP 400～935V 440~935V...

  • Page 54: Ac Output Data

    Number of MPP trackers Strings per MPP tracker Overvoltage category in accordance with IEC60664-1 1. When the DC input voltage is greater than 1070V, the inverter will alarm an error. 2. When the DC input voltage is lower than 995V, the inverter starts self-checking.
  • Page 55 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. continuous 3×50A 3×55 A 3×60 A output current Maximum output current under fault 3×95A conditions Maximum output overcurrent 3×100A...
  • Page 56 ASW 40K- ASW 45K- ASW 50K- Type LT-G2 LT-G2 LT-G2 Rated output power 40000 W 45000 W 50000 W Max. output active 40000 W 45000 W 50000W power Max. output 40000VA 45000VA 50000VA apparent power Rated AC Voltage 3/N/PE ,220/380V, 230/400V AC voltage range 180V-305V/312V-528V Rated AC...
  • Page 57 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. 2. The AC frequency range depends on the local safety standards and rules.

  • Page 58: General Data

    10.3 General data ASW 30- ASW 40- Type 36K- LT- 45K- LT- 50K- LT- Net weight 42 KG 42.5KG 43KG Dimensions(L×W×D) 670×580×270 mm Mounting environment Indoor and Outdoor Mounting Wall bracket recommendation Operating temperature -25…+60℃ range Max. permissible value for relative humidity (non- 100% condensing)

  • Page 59: Safety Regulations

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

  • Page 60: 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 AC M8 12.0 Nm screwdriver, SW13 terminal M6 5.0 Nm SW10 Screws for wall bracket Torque accessory 2.5 Nm screwdriver, SW8 Screws for wall bracket Torque...

  • Page 61: Troubleshooting

    Hammer drill, Drill holes on the wall drill bit of Ø10 Hammer wall plugs Rubber mallet into holes Cable cutter Cut power cables 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...
  • Page 62 • Check the grid voltage and grid connection on inverter. • Check the grid voltage at the point of connection of inverter. If the grid voltage is outside the permissible range due to local grid conditions, try to modify the values of the monitored operational limits after informing the electric utility company first.
  • Page 63 • Check the PV array’s insulation to ground and make sure that the insulation resistance to ground is greater than 1 MOhm. Otherwise, make a visual inspection of all PV cables and modules. • Make sure the grounding connection of the inverter is reliable.
  • Page 64 the inverter is reliable. If this fault occurs often, contact the service. • Disconnect the inverter from the utility grid and the PV array and reconnect it after LED turn off. Permanent If this fault is still being displayed, contact Fault the service.

  • Page 65: 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 66: 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. UM0011_ASW 30-50K-LT-G2_EN_V03_1121...

  • Page 67: 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 68 +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:

Asw30k-lt-g2Asw33k-lt-g2Asw36k-lt-g2Asw40k-lt-g2Asw45k-lt-g2Asw50k-lt-g2

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