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

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  • Page 2: Table Of Contents

    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 ...............
  • 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 ......36 5.6.1 Mounting the WiFi/GPRS Stick ........36 5.6.2 The RS485 connection ..........
  • Page 4 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 .............

  • Page 5: Notes On This Manual

    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.

  • Page 6: Symbols Used In This Manual

    • 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 •...

  • Page 7: Safety

    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. 2 Safety 2.1 Intended use 1. The inverter converts the direct current from the PV arrays into grid-compliant alternating current.
  • Page 8 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.

  • 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 Type Label

    2.3 Symbols on the type label Explanation Symbol 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.

  • Page 12: Unpacking

    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...

  • 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 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 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.
  • Page 16 The mounting method, location and surface must be suitable for the inverter's weight and dimensions. 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. Don’t put any objects on the inverter.

  • Page 17: 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. 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.
  • Page 18 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. 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.
  • Page 19 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.
  • Page 20 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. User manual UM0003_ASW15-20k-LT_EN_V01_0121...

  • 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: Overview Of The Connection Area

    5.2 Overview of the connection area Object Description DC-switch: switch on or off for PV-load MPP1 input: plug-in connectors to connect the strings MPP2 input: plug-in connectors to connect the strings RS485 and Smart meter(optional): system monitoring WiFi or GPRS (optional): transmit and receive GPRS or Wi-Fi signal Additional grounding screw AC connector: AC output connection...

  • Page 23: Ac Connection

    must disconnect each PV string of the inverter so that the entire inverter can be removed if the inverter is faulty. We recommend the following electrical 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).
  • Page 24 Object Description Value External diameter 18…21 mm Conductor cross-section 6…10 mm2 Stripping length of the insulated 12 mm conductors Stripping length of the AC cable’s 75 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 The required conductor cross-section depends on the inverter rating, ambient temperature, routing method, cable type, cable losses, valid installation requirements of installation side. Residual current protection The product is equipped with an integrated universal current- sensitive residual current monitoring unit inside. The inverter will disconnect immediately from the mains power as soon as fault current with a value exceeding the limit.
  • Page 26 method, ambient temperature, inverter current rating, etc. Derating of the AC circuit breaker rating may be necessary due to self-heating or if exposed to heat. The maximum output current and the maximum output overcurrent protection of the inverters can be found in section 10 "Technical data".

  • Page 27: Grid Connection

    Safety in accordance with IEC 62109 when the grounding conductor monitoring is deactivated. In order to guarantee safety in accordance with IEC 62109 when the grounding conductor monitoring is deactivated, carry out one of the following measures: • Connect a copper-wire grounding conductor with a cross- section of at least 10 mm²...
  • Page 28 Damage to the inverter due to wrong wiring If the phase line was connected to PE terminal, the inverter will not function properly. • Please ensure that the type of the conductors matches the signs of the terminals on the socket element. 2.

  • 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 Ensure that the stripped cable and the DC connector have the same polarity. 3. Press the clamping bracket down until it audibly snaps into place. 4. Ensure that the cable is correctly positioned: Result Measure If the stranded wires are visible •Proceed to step 5.

  • Page 33: Disassembling The Dc Connectors

    5. Push the swivel nut up to the thread and tighten (SW15, torque: 2 Nm). 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.

  • Page 34: Connecting The Pv Array

    4. Carefully pull the DC connector apart. 5. Release the clamping bracket. To do so, insert a flat-blade screwdriver (blade width: 3.5 mm) into the clamping bracket and lever it open. 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.
  • Page 35 3. Ensure that there is no ground fault in the PV strings. 4. Check whether the DC connector has the correct polarity. If 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.
  • Page 36 • Insert the sealing plug into the DC connector. • Tighten the DC connector (torque: 2 Nm). • Insert the DC connectors with sealing plugs into the corresponding DC inputs on the inverter. User manual UM0003_ASW15-20k-LT_EN_V01_0121...

  • Page 37: Conmunication Equipment Connection

    5.6 Conmunication equipment connection 5.6.1 Mounting the WiFi/GPRS 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 or GPRS Stick monitoring, WiFi/GPRS Stick should be connected to COM2 socket.

  • Page 38: The Rs485 Connection

    5.6.2 The RS485 connection 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. All the warranty claim will be invalid. •...
  • Page 39 Connect the communication cable procedure: 1. Cable requirements are as follows. Insert the conductor into a suitable ferrule acc. to DIN 46228-4 and crimp the contacts. 2. Guide the swivel nut, the socket element with sealing ring and the adapter over the cable. Insert the crimped conductors into the corresponding terminals and tighten the screw with torque 0.2Nm.

  • Page 40: Communication

    6 Communication 6.1 System monitoring via WIFI User can monitor the inverter through the external WiFi stick with WLAN module. The connection diagram between the inverter and internet with a RS485 connection is shown as following two pictures, both two methods are available. Please note that each WiFi stick can only connect up to 5 inverters in method1.

  • Page 41: System Monitoring Via Rs485

    “AiSWEI cloud”. You can install the “AiSWEI cloud” application on a smart phone using Android or iOS operating system. You can also visit the website ( www.solplanet.net ) for system information. And download the user manual for the AISWEI Cloud Web or AISWEI Cloud APP.

  • Page 42: Active Power Control With Smart Meter

    • The router needs to support DHCP services if the AiCom use the DHCP function. For more information, you can visit the website ( www.solplanet.net ) and download the user manual for the AiCom. 6.3 Active power control with Smart meter...
  • Page 43 However, If you choose the Aicom instead of the WiFi stick, the inverter should connect to AiCom by RS485, and also the smart meter connect to the AiCom, the connection description please refer to the picture in section 6.2. Smart meter as above SDM120-Modbus connecting method and seting baud rate method for modbus please refer to it’s user manual.

  • Page 44: Active Power Control Via Demand Response Enabling Device (Dred)

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

  • Page 45: Commissioning

    7 Commissioning 7.1 Electrical check Carry out the main electrical checks as follows: ① Check the PE connection with a multimeter: check that the inverter’s exposed metal surface has a grounding connection. Danger to life due to the presence of DC-Voltage Touching the live conductors can lead to lethal electric shocks.

  • Page 46: Mechanical Check

    7.3 Safety code check Choose suitable safety code according to the location of installation. please visit website ( www.solplanet.net ) and download the AISWEI Cloud APP manual for detailed information, you can find the Safety Code Setting Guide in an event where an installer needs to set the country code manually.

  • Page 47: Start-Up

    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. Once the DC input voltage is sufficiently high and the grid-connection conditions are met, the inverter will start operation automatically.

  • Page 48: Display

    If the inverter is in “Fault” mode, refer to chapter 11 “Troubleshooting”. 8 Display 8.1 Overview of the control panel The inverter is equipped with a display panel. You can view the running status. 8.2 LED indicators The inverter is equipped with three LED indicators including “green”, “yellow”...

  • Page 49: Led6 Yellow Communication Indicator

    When the DC input and AC input meet the requirements of grid- connected, inverter into the ready-to-grid state, the above five LEDs into the horse light mode, according to the following mode cycle: LED1LED2LED3LED4LED5, time interval 1s. 8.2.2. LED6 Yellow communication indicator. The light flashes when the inverter communicates with other devices e.g.

  • Page 50: Disconnecting The Inverter From Voltage Sources

    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. Always adhere strictly to the given sequence. 1. Disconnect AC circuit breaker and secure against reconnection.
  • Page 51 4. Release and disconnect all DC connectors. To do so, insert a flat-blade screwdriver or an angled screwdriver (blade width: 3.5 mm) into one of the side and pull the DC connectors straight out. Do not pull on the cable. 5.

  • Page 52: Technical Data

    10 Technical data 10.1 DC input data Type ASW20K-LT ASW15K-LT Max. PV modules 26000Wp STC 19500Wp STC ower(STC) Max. input voltage/ 1000 V/640V Rated input voltage MPP voltage range 150～950 V Full load MPP voltage 500~800V range Intitial feed-in voltage 188V Min input voltage 150V...

  • Page 53: Ac Output Data

    10.2 AC output data Type ASW20K-LT ASW15K-LT Max. output apparent power 20000VA 15000 VA 3/N/PE, 220/380 V, 230/400 Rated AC Voltage V,240/415 V AC voltage range 180 V ~295V Rated AC Frequency 50 Hz/ 60 Hz Operating range at AC 45 Hz to 55Hz power frequency 50 Hz Operating range at AC...
  • Page 54 (2) The AC frequency range depends on the local safety standards and rules. User manual UM0003_ASW15-20k-LT_EN_V01_0121...

  • Page 55: General Data

    10.3 General data Type ASW20K-LT ASW15K-LT Net weight 25.8 Kg Dimensions(L×W×D) 490×497×212.5 mm Mounting environment Indoor and Outdoor Mounting recommendation Wall mounting bracket Operating temperature -25…+60℃ range Max. permissible value for relative humidity ( non- 100% condensing ) Max. operating altitude 3000m above mean sea level Ingress protection...

  • Page 56: Safety Regulations

    10.4 Safety regulations Type ASW20K-LT ASW15K-LT Internal Integrated DC insulation Integrated DC feed-in Integrated Grid monitoring Integrated DC isolator Integrated DC reverse polarity Integrated protection Residual current Integrated（in accordance with EN Islanding Integrated (Three-phase monitoring) EN61000-6-1 EMC immunity EN61000-6-2 ETSI EN301489-17 EN61000-6-1 EMC emission EN61000-6-2...
  • Page 57 Error Object Corrective measures code • Check the grid frequency and observe how often major fluctuations occur. If this fault is caused by frequent fluctuations, try to modify the operating parameters after informing the grid operator first. • Check the grid voltage and grid connection on inverter.
  • Page 58 • Make sure the grounding connection of the inverter is reliable. •Make a visual inspection of all PV cables and modules. If this fault is still shown, contact the service. • Check the open-circuit voltages of the Presumable strings and make sure it is below the Fault maximum DC input voltage of the inverter.
  • Page 59 If the open circuit voltage of each pv group is less than 995V and this fault still exists, please contact the service personnel. • Check whether the electric supply is abnormal. If the electric supply is normal and this fault still exists, please contact the service personnel.
  • Page 60 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 Output over current-software Output over current-hardware Anti-islanding...

  • Page 61: 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 62: Maintaining The Fan

    12.3 Maintaining the fan Risk of injury due to hot heat sink! • The heat sink may exceed 70℃during operation. Do not touch the heat sink during operation. • Wait approx. 30 minutes before maintenance until the heat sink has cooled down. Damage to the fan due to compressed air! •...

  • Page 63: Recycling And Disposal

    13 Recycling and disposa Dispose of the packaging and replaced parts according to the rules at the installation site where the device is installed. Do not dispose the inverter with normal domestic waste. WEEE designation Do not dispose of the product together with the household waste but in accordance with the disposal regulations for electronic waste applicable at the installation site.

  • Page 64: Eu Declaration Of Conformity

    The factory warranty card is enclosed with the package, please keep well the factory warranty card. Warranty terms and conditions can be downloaded at 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 65: Contact

    Our regional services contact information can be found at: https://solplanet.net/contact-us/ AISWEI New Energy Technology (Jiangsu) Co., Ltd. Tel.: +86 512 6937 0998 Fax: +86 512 6937 3159 Web: www.solplanet.net Factory add.: No.588 Gangxing Road, Yangzhong Jiangsu, China Headquarters add.: Building 9, No.198 Xiangyang Road, Suzhou 215011, China...

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