Selectronic SelectSun 20K Instruction Manual

Selectronic SelectSun 20K Instruction Manual

Photovoltaic string
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Instruction Manual for
SelectSun 20K
Photovoltaic String Inverter
Installation • Operation • Service
Doc. No. | 982055
Version | 01
Date | 2018-03
Language | English

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Summary of Contents for Selectronic SelectSun 20K

  • Page 1 Instruction Manual for SelectSun 20K Photovoltaic String Inverter Installation • Operation • Service Doc. No. | 982055 Version | 01 Date | 2018-03 Language | English...
  • Page 2: Copyright

    All trademarks or registered trademarks are the property of their respective owners. Disclaimer and Limitation of Liability Selectronic Australia Pty Ltd assumes no liability in the event of damage as a consequence of the failure to observe the warning instructions in these operating instructions or of improper usage.
  • Page 3: Table Of Contents

    Power Connection ......................... 21 4.11 Power Supply Line ......................... 23 4.11.1 Fitting of supplied power plug ....................23 4.12 Grid Line Impedance ........................25 4.13 DC connection PV generator ......................26 4.13.1 DC-Connection .......................... 27 Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 4 Assembling of the Sensor Plug ....................54 8.1.4 Connection of the Sensor at the Solar Inverter................54 8.1.5 Configuration ..........................55 External Turn Off Signal ........................56 8.2.1 Overview ............................ 56 8.2.2 Function ............................. 56 4 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 5 Configuration of the External Stop Signal (DRM 0) ..............58 8.2.5 Attach the DRM 0 Sticker ......................58 Maintenance Maintain the Inverter ......................... 59 Decommissioning 10.1 Remove Inverter ..........................60 10.2 Disposal ............................61 Technical data 11.1 Inverter ............................62 Certificates Contact Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 6: About This Instruction Manual Symbols And Markup

    Leads directly to death or serious personal injury if ignored. Follow the warnings to avoid death or serious injury! WARNING May result in death or serious personal injury if ignored. Follow the warnings to avoid serious injuries! 6 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 7: Information

    This symbol represent important notes concerning potential harm to people, this unit, or associated equipment. Information Note: A notice describes information which is important for the optimum and cost- effective operation of the equipment. Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 8: Safety Information Intended Use

    2 Safety Information Intended Use The SelectSun 20K inverter, also referred to in these operating instructions as the inverter, is a solar inverter, which transforms the direct current generated by the PV generator (photovoltaic modules) into alternating current and feeds this to the public power supply network.
  • Page 9: Dangers Arising From Misuse

     Discharge time is at least 15 minutes. DANGER Danger to life from high discharge current  It is essential to ensure an earthing connection has been established prior to connection to the supply current circuit. Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 10: Protection Against Contact With Electrical Parts

    75 °C.  Do not touch the housing surface near to heat sources.  Allow the device to cool down for 15 minutes before touching the surface of the device. 10 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 11: Protection During Handling And Assembly

    DC voltage is present at the input. If no switch-off is effected, the inverter switches on automatically in the morning when the PV generator supplies sufficiently high voltage. This means that the maximum output is generated. Doc. No. 982055, Version 01, SelectSun 20K | 11...
  • Page 12: Additional Symbols And Warning Notices On The Inverter

    Before beginning of work switch unit free of voltage. Warning of electrical voltage on DC and AC side. All solar strings on the DC side are at voltage. Discharging time of the device longer than 15 minutes. 12 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 13: Description Of Device Infastructure Requirements

    Technical Guidelines Features of SelectSun 20K The SelectSun 20K is a transformer-less, three-phase solar inverter, which has a particularly high efficiency at any operating point. Heat is dissipated only be convection. An internal monitor prevents the device from exceeding the permissible ambient temperature. The inverter is designed such that the device does not have to be opened for assembly and connection work.
  • Page 14: External Dimensions

    Description of Device | External Dimensions External Dimensions Fig. 1: External dimensions Block Diagram 3.4.1 SelectSun 20K Fig. 2: Block diagram SelectSun 20K 1) DC overvoltage protection, type 3 2) AC overvoltage protection, type 3 14 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 15: Dc Connection

    If the storage capacity is full, the oldest data is overwritten. With the default setting on delivery, the data logger logs 16 measuring channels. Recording cycle Storage time 1 minute 2.5 years 2 minutes 5 years 5 minutes 12.5 years 10 minutes 25 years Doc. No. 982055, Version 01, SelectSun 20K | 15...
  • Page 16: Installation Assembly Site Requirements

    Installation in non-ventilated ended cabinets and enclosures is not allowed because the unit in operation emits heat. • To allow for the heat dissipation required, keep the following minimum distances from the ceiling and wall as well as from neighbouring devices: 16 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 17: Transport

    The devices must be stored in clean and dry premises, if possible in their original packaging. The storage temperature must be in the range of -25 – +55 °C. Permissible variations in temperature may not exceed 20 °C (68 °F) per hour. Doc. No. 982055, Version 01, SelectSun 20K | 17...
  • Page 18: Checking Scope Of Delivery

    1 year and at a storage temperature of ≤ 40 °C / ≤ 104 °F while in a de- energized state. If the storage time has been exceeded, please contact Selectronic Australia Pty Ltd Service before connecting the inverter to your system!
  • Page 19: Installation

    38.4 kg into account.  Do not open device. Opening the device voids the warranty. The inverter is mounted using the wall-mounting plate which is included in the scope of delivery. Doc. No. 982055, Version 01, SelectSun 20K | 19...
  • Page 20: Device Connectors

    Fig. 7: Device connectors SelectSun 20K The inverter is provided with the following connectors, as seen from left to right, top to bottom: • 6 pair of PV generator connections • RS485 connectors (IN and OUT) 20 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 21: Grounding

    Risk of electric shock and fire caused by high discharge current  Before connecting the device to the supply circuit, establish a ground - connection by means of the labelled ground stud! Doc. No. 982055, Version 01, SelectSun 20K | 21...
  • Page 22 Note: When using wire end ferrules with isolating collar, make sure you do not introduce the insulation of the wire end ferrule into the clamping area of the terminal. 22 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 23: Power Supply Line

    The seal is run through a hole in the screw (below the screw head of the adapter housing) and the opening provided and attached to the housing of the device. The following table shows the maximum wire lengths upon use of a SelectSun 20K depending on the cable cross section with a voltage drop below 1 %: Line cross section 6.0 mm²...
  • Page 24 Installation | Power Supply Line Fig. 9: Preparation of plug cable 3. Screw in plug. 4. Note torque specification according to illustration. Fig. 10: Screw in plug 5. Determine diameter. 6. Seal connection. 24 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 25: Grid Line Impedance

    It is not allowed to lay single cores in closed, magnetically conducting materials (e.g., sheet steel pipe). • If laid in open cable ducts, single cores should be laid such that the spacings between them are as small as possible. Minimum spacing between single cores! Doc. No. 982055, Version 01, SelectSun 20K | 25...
  • Page 26: Dc Connection Pv Generator

    Max. DC current via all DC inputs see “Technical data”, p. 62 Note: Do not ground the positive or negative pole of the PV generator. Otherwise, the modules may experience a loss of power 26 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 27: Dc-Connection

    Only the original components by PHOENIX CONTACT can be used! Failure to do so could void your warranty! Doc. No. 982055, Version 01, SelectSun 20K | 27...
  • Page 28: Connect Phoenix Contact Connector (Sunclix)

    4. Push insert into the barrel. 5. Tighten the cable screws with 2 Nm. 6. Bring together plug and bush. The connection latches. 7. By pulling the coupler, check the correct connection. 28 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 29: 4.13.2.2 Disconnect Connector

    1. Unscrew cable screwing. 2. Enter screwdriver as demonstrated in picture below. 3. Pry open connection and separate barrel and insert from one another. 4. Open spring with screwdriver. Remove cable. Doc. No. 982055, Version 01, SelectSun 20K | 29...
  • Page 30: Interface Port Rs485

    The bus termination is made by means of wire jumpers on RS485 OUT to the last bus user (inverter “n”). Signal Pin 1 (only used for termination) Pin 2 RS485 + Pin 3 RS485 - Pin 4 Reference 30 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 31: Ethernet Interface Connection

    Each inverter must be connected to an ethernet switch, in parallel. Please use an Ethernet cable with S/FTP design (shielded foiled twisted pair) and Phoenix Contact plug type Quickon VS-08-RJ45-5-Q/IP67. Doc. No. 982055, Version 01, SelectSun 20K | 31...
  • Page 32 In order to ensure IP 65 protection, the plug type mentioned above must be used. Failure to observe this can lead to damage to the inverter and therefore void the warranty. 32 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 33: Commissioning Turning On The Device

    2. Apply voltage by turning on the DC switch. The inverter only starts if there is sufficient voltage available from the PV panels. Note: The control panel, including its status indicators, display, and operator keys, is only active when the PV generator is supplying sufficiently high voltage. Doc. No. 982055, Version 01, SelectSun 20K | 33...
  • Page 34: Setting The Country Code And The Menu Language

    However, the menu language can later be changed independently of the country code. 2. Press OK to confirm. Then the grid feed guideline given by the energy supplier must be selected. 34 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 35: Accepting The Country Code

    405 V 634 V E day 27.6 kWh Reboot Menue Device Start  Solar modules are irradiated with sufficient sunlight.  Country code is set.  Time and date is set. Doc. No. 982055, Version 01, SelectSun 20K | 35...
  • Page 36: Control Panel

    Function while parameters are edited: digit to the left, digit to the right (decade jump) Selection within the menu. Acknowledge failures and exit from menu level, exit from input menu without entering data Confirm the selected menu (next menu level) and entered data. 36 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 37: Basic Screen

    20 c|k Fig. 20: “Today's” feed power display Press the arrow key to display the development of the previous days. Press the ESC key to return to the basic screen display. Doc. No. 982055, Version 01, SelectSun 20K | 37...
  • Page 38: Energy Yield Data Display

    Press the key to select the digits after the point. key: Press the key to increment the selected digit by 1. key: Press the key to decrement the selected digit by 1. 38 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 39 Press the OK key to apply the set value. Press the ESC key to discard the value and display the previous “normalized yield” level. Press the F1 key to display the menu. Doc. No. 982055, Version 01, SelectSun 20K | 39...
  • Page 40: Menu Structure

    Actual values RS485 Failure memory Configuration Country Device Information Power Languages Limitation PAC Communication Date / Time Activation Portal settings Send configuration Portal Overview Testfunction Version number Country Current language Ethernet 40 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 41: Configuration Changing The Menu Language

    Select the sub-menu “PAC Limit” and confirm with the OK key. Enter the invert power output as percentage of the nominal power and confirm with the OK key.  The power limit is immediately applied. Doc. No. 982055, Version 01, SelectSun 20K | 41...
  • Page 42: Monitoring Portal

    Configuration | Monitoring Portal Monitoring Portal The SelectSun 20K inverter can be connected to a monitoring portal using direct Ethernet connection to the internet, or via RS485 and a control device. Once an internet connection is established, the inverter will automatically start to send data every 5 minutes.
  • Page 43: Communication Via Ethernet

    10. Navigate to Configuration > Communication > Ethernet > DNS. 11. Enter arbitrary IPv4 address of the superior DNS server Default value: 0.0.0.0 12. Press OK to confirm. 13. Restart inverter. Doc. No. 982055, Version 01, SelectSun 20K | 43...
  • Page 44: Communication Via Rs485

    1 = Portal monitoring via Ethernet active Notice If the inverter is connected with RS485 to the control device, the setting 0 (Portal Monitoring via Ethernet not active) must be used! 44 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 45: Sending Config

    Portal Test Function Menu Configuration > Portal monitoring > Portal Test On request of our service, you can send a test data package to the portal. Open the menu and select „yes“. Doc. No. 982055, Version 01, SelectSun 20K | 45...
  • Page 46: Troubleshooting Self-Test - Error Message

     To acknowledge the fault message, press the ESC key or turn the inverter off with the DC switch and wait min. 30 seconds to turn the inverter ON again. 46 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 47: List Of Error Messages

    As long as the inverter is detecting under/overfrequency a power section grid frequency: check the frequency of the phases. If you consider the frequencies to be in order, contact the Service Doc. No. 982055, Version 01, SelectSun 20K | 47...
  • Page 48 ETH link lost The Ethernet cable has been Check the Ethernet cable on the removed device and the receiver (router, switch) for a correct fit. If the cables are correctly connected and should 48 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 49 Please contact the service if it detected. happens repeatedly 90061 Update fault This notification can be ignored. No measures necessary. 90062 Fault ride Grid-instability which is handled with through respect to the grid code standards. Doc. No. 982055, Version 01, SelectSun 20K | 49...
  • Page 50 Please contact Service is too low. A010C PM isolation LT Power section detects an isolation Check system isolation. If you error on activation. consider the isolation resistance to be in order, contact Service. 50 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 51 P24V LT aux. P24V supply voltage at the power supply stack is too low. Please contact Service A0173 P5V LT aux. P5V supply voltage at the power supply stack is too low. Doc. No. 982055, Version 01, SelectSun 20K | 51...
  • Page 52 A017C N15V LT aux. N15V supply voltage at the power Supply stack is too low. A017D Phase defect an error has been detected in the power modules 52 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 53: Options

    Shield 8.1.2 Sensor Type Si-13TC-T-K Cable Sensor cable color Signal Supply voltage (12-28 VDC) Black Ground Orange Measurement signal irradiation (0-10 V) Brown Measurement signal temperature (0-10 V) Black, thick Shield Doc. No. 982055, Version 01, SelectSun 20K | 53...
  • Page 54: Assembling Of The Sensor Plug

    AWG 26 – 20 0.79″ 0.6 ft lbs 2 ft lbs 8.1.4 Connection of the Sensor at the Solar Inverter Fig. 25: Standard connection at a solar inverter (not applicable at AFCI variant) 54 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 55: Configuration

    The actual values of the sensor can be viewed in Actual values > Sensor. The data continues to be recorded with the data logger and can be viewed via the monitoring portal. Doc. No. 982055, Version 01, SelectSun 20K | 55...
  • Page 56: External Turn Off Signal

    8.2.1 Overview The SelectSun 20K inverters have an internal grid protection relay and section switch. Depending on local connection, installation instructions and the selected line voltage level either the internal grid protection relay can be used with section switch, or an external grid protection relay must be used with section switch also.
  • Page 57: Connections Of The External Stop Signal (Drm 0)

    Fig. 27: Single external stop signal Fig. 28: Redundant external stop signal (does not apply to AFCI variant) Fig. 29: Single external stop signal with sensor connected (does not apply to AFCI variant) Doc. No. 982055, Version 01, SelectSun 20K | 57...
  • Page 58: Configuration Of The External Stop Signal (Drm 0)

     Before connecting the device to the supply circuit, establish a ground connection. 8.2.5 Attach the DRM 0 Sticker  Attach the “DRM 0 (Australia)“ sticker next to the Sensor connector. The sticker can be found enclosed to the instruction manual. 58 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 59: Maintenance Maintain The Inverter

    If found, the debris must be removed to ensure that the convection cooling is not inhibited. Cleaning with high-pressure cleaners is prohibited. Annually, the DC switch has to be operated without electricity 5 times. Doc. No. 982055, Version 01, SelectSun 20K | 59...
  • Page 60: Decommissioning Remove Inverter

    1. Deenergize the inverter completely. 2. Remove all cables from the inverter. 3. Loosen the screws (M5x20) securing the inverter to the wall-mounting bracket. 4. Remove the inverter from the wall-mounting bracket. 60 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 61: Disposal

    The inverter conforms to RoHS. That means that the device can be taken to municipal disposal sites for household appliances. Selectronic Australia Pty Ltd takes the inverter back completely. Please contact the Service team. Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 62: 11 Technical Data

    Cooling Natural convection Ambient temperature (°C) -25 – +55 °C Storage temperature (°C) -25 – +55 °C Transport temperature (°C) -25 – +70 °C Relative air humidity (%) 4 – 100 62 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 63 Weight with packaging (kg) 43.5 kg ** Note derating of max. DC voltage: Amount over NN. Max. DC voltage Up to 3,843 m 1,000 V Up to 4,000 m 971 V Doc. No. 982055, Version 01, SelectSun 20K | 63...
  • Page 64: 12 Certificates

    AS/NZS 4777.2:2015, AS 4777.3-2005, AS/NZS 3100:2017 VDE AR-N 4105:2011 BDEW Mittelspannungsrichtlinie (medium voltage directive) TR3 Rev 23, TR4 Rev 7, TR8 Rev 6 CEI 0-16:2012, 0-16 V1:2013, 0-16 V3:2014 CEI 0-21:2012-06, V1:2012-12, V2:2013-12, 2014-09, V1:2014-12 64 | Doc. No. 982055, Version 01, SelectSun 20K...
  • Page 65: 13 Contact

    Website: http://www.selectronic.com.au/contact/ Support Ticket: http://www.selectronic.com.au/support/ticket.htm You should have the following data at hand: • Exact description of the error with error code • Device type • Serial number • Firmware version Doc. No. 982055, Version 01, SelectSun 20K | 65...

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