Ledvance LT-50K F2 User Manual
  1. Manuals
  2. Brands
  3. Ledvance Manuals
  4. Inverter
  5. LT-50K F2
  6. User manual
Ledvance LT-50K F2 User Manual

Ledvance LT-50K F2 User Manual

Three phase inverter
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
w
USER MANUAL
LEDVANCE THREE PHASE INVERTER
LT-(50-60)K F2
LEDVANCE.COM

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LT-50K F2 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Ledvance LT-50K F2

Summary of Contents for Ledvance LT-50K F2

  • Page 1 USER MANUAL LEDVANCE THREE PHASE INVERTER LT-(50-60)K F2 LEDVANCE.COM...

  • Page 2: Table Of Contents

    CONTENTS INTRODUCTION PRODUCT DESCRIPTION ______________________________________________________________________ 2 PACKAGING __________________________________________________________________________________ 3 SAFETY INSTRUCTIONS SAFETY SYMBOLS ____________________________________________________________________________ 4 GENERAL SAFETY INSTRUCTIONS ______________________________________________________________ 4 NOTICE FOR USE _____________________________________________________________________________ 5 NOTICE FOR DISPOSAL ________________________________________________________________________ 5 ENVIRONMENTAL CONSIDERATIONS ___________________________________________________________ 6 INSTALLATION OTHER ENVIRONMENTAL CONSIDERATIONS ___________________________________________________ 7 PRODUCT HANDLING _________________________________________________________________________ 8 MOUNTING THE INVERTER _____________________________________________________________________ 9 WALL MOUNTING ___________________________________________________________________________ 10...
  • Page 3 CONTENTS SETTING A CUSTOM GRID STANDARD _______________________________________________________ 31 PRELIMINARY CHECKS _____________________________________________________________________ 31 DC CONNECTIONS __________________________________________________________________________ 31 AC CONNECTIONS __________________________________________________________________________ 32 DC CONFIGURATION ________________________________________________________________________ 32 AC CONFIGURATION ________________________________________________________________________ 32 START-UP AND SHUTDOWN START-UP PROCEDURE ____________________________________________________________________ 33 SHUTDOWN PROCEDURE ___________________________________________________________________ 33 NORMAL OPERATION MAIN MENU ________________________________________________________________________________ 34 INFORMATION ______________________________________________________________________________ 34 SETTINGS __________________________________________________________________________________ 36...

  • Page 4: Introduction

    INTRODUCTION PRODUCT DESCRIPTION Ledvance three phase string inverters covered in this user instruction are suitable for residential, commercial and utility scale projects. This manual covers the three phase inverter model listed below: LT-50K F2, LT-60K F2. LED lights LCD display...

  • Page 5: Packaging

    DC connectors Cross Recessed 16pin COM Connector x1 50K x10, 60K x12 Hexagon Bolt (M6*12) x2 Unlocking tool x1 AC terminal cover x1 Quick Installation Manual x1 If anything is missing, please contact your local Ledvance distributor. Document No.: LDV-LT-50/60-F2-01-UM_11.2023...

  • Page 6: Safety Instructions

    The DC OCPD shall be installed per local requirements. All photovoltaic source and output circuit conductors shall have disconnecting equipment that comply with the NEC Article 690, Part II. All Ledvance three phase inverters feature an integrated DC switch CAUTION Risk of electric shock.

  • Page 7: Notice For Use

    SAFETY INSTRUCTIONS CAUTION The PV array (Solar panels) supplies a DC voltage when they are exposed to sunlight. CAUTION Risk of electric shock from energy stored in capacitors of the Inverter. Do not remove cover for 5 minutes after disconnecting all power sources (service technician only).

  • Page 8: Environmental Considerations

    INSTALLATION ENVIRONMENTAL CONSIDERATIONS Select a location for the inverter When selecting a location for the inverter, consider the following: WARNING: RISK OF FIRE Despite careful construction, electrical devices can cause fire. Do not install the inverter in areas containing highly flammable materials or gases. Do not install the inverter in potentially explosive atmosphere.

  • Page 9: Other Environmental Considerations

    Vertical wall installation This model of Ledvance inverter should be mounted vertically (90 degrees or backwards 15 degrees). Avoiding direct sunlight Installation of the inverter in any location exposed to direct sunlight should to be avoided. Direct exposure to sunlight could cause: Power output limitation (with a resulting decreased energy production by the system).

  • Page 10: Product Handling

    INSTALLATION Air circulation Do not install in small, closed rooms where air cannot freely circulate. To prevent overheating, always ensure that the air flow around the inverter is not blocked. Flammable substances Do not install near flammable substances. Maintain a minimum distance of three meters (ten feet) from such substances.

  • Page 11: Mounting The Inverter

    INSTALLATION Inverter handles WARNING Despite careful construction, electrical devices can cause fires. Do not install the inverter in areas containing highly flammable materials or gases. Do not install the inverter in potentially explosive atmospheres. The mounting structure where the inverter is installed must be fireproof. MOUNTING THE INVERTER The inverter can be mounted to the wall or metal array racking.

  • Page 12: Wall Mounting

    INSTALLATION WALL MOUNTING The steps to mount the inverter are listed below. 1. Drill holes for expansion bolt (M10*90) based on the hole diameter of bracket using a precision drill keeping the drill perpendicular to the wall. Max depth is 90mm. 2.

  • Page 13: Rack Mounting

    INSTALLATION RACK MOUNTING The steps to mount the rack are listed below: Select a location for the inverter With an IP66 protection rating, the inverter can be installed both outdoors and indoors. When the inverter is running, the temperature of the chassis and heat sink will be higher. Do not install the inverter in a location that you accidentally touch.

  • Page 14: Install Mounting Plate

    INSTALLATION INSTALL MOUNTING PLATE Remove the bracket and fasteners from the packaging. Mark the position for hole, drilling according to the hole positions of the bracket. Mark the position for hole Drill the marked holes. It is recommended to apply anti-corrosive paint at the hole for corrosion protection Drill hole Document No.: LDV-LT-50/60-F2-01-UM_11.2023...
  • Page 15 INSTALLATION Align the mounting plate with the holes, insert the hexagon bolt (M10X40) through the mounting plate into the hole. Secure the bracket to the metal frame firmly. Torque the nut to 36FT-LB (35NM). Construction bolt Lift the inverter above the bracket and then slide down to make sure they match perfectly. Mount the inverter Document No.: LDV-LT-50/60-F2-01-UM_11.2023...

  • Page 16: Electrical Connections

    INSTALLATION ELECTRICAL CONNECTIONS Inverter design uses PV style quick-connect terminal. The top cover does not need to be opened during DC electrical connection. The labels located at the bottom of the inverter are described in a table below. All electrical connections are suitable for local or national standard.

  • Page 17: Grounding

    INSTALLATION GROUNDING To effectively protect the inverter, two grounding methods must be performed. Connect the AC grounding cable. Connect the external grounding terminal. To connect the grounding terminal on the heat sink, please follow the steps below: 1. Prepare the grounding cable: recommend to use in the outdoor is a copper-core cable. The grounding wire should be at least half size of the hot wires.
  • Page 18 INSTALLATION 4. Insert the stripped wire into the OT terminal crimping area and use the hydraulic clamp to crimp the terminal to the wire. Strip wire Important After crimping the terminal to the wire, inspect the connection to ensure the terminal is solidly crimped to the wire.

  • Page 19: Connect Pv Side Of Inverter

    INSTALLATION CONNECT PV SIDE OF INVERTER WARNING Before connecting the inverter, make sure the PV array open circuit voltage is within the limit of the inverter. Otherwise, the inverter could be damaged. WARNING DO NOT connect the PV array positive or PV array negative cable to ground. This can cause serious damage to the inverter WARNING MAKE SURE the polarity of the PV array output conductors matches the DC- and DC+...
  • Page 20 INSTALLATION Multimeter measurement Connect the DC connectors to the inverter Traverse area (mm²) Outside diameter of cable Cable type (mm) Range Recommended value Industry generic PV cable 4.0~6.0 5.5~9.0 (model: PV1-F) (12~10AWG) (12AWG) CAUTION If DC inputs are accidently reversely connected or inverter is faulty or not working properly, it is NOT allowed to turn off the DC switch.

  • Page 21: Dc Connection High Voltage Danger Notice

    NOTE Use AL-CU transfer (bi-metallic) terminal or anti-oxidant grease with aluminum cables and terminals. Inverter Rated voltage (V) Rated output current (A) Current for protection device (A) LT-50K F2 220/380,230/400 76.0/72.2 LT-60K F2 220/380,230/400 91.2/86.6 Document No.: LDV-LT-50/60-F2-01-UM_11.2023...

  • Page 22: Connecting The Inverter To The Utility Grid

    INSTALLATION CONNECTING THE INVERTER TO THE UTILITY GRID All electrical installations must be carried out in accordance with the local standards and the National Electrical Code® ANSI/NFPA 70 or the Canadian Electrical Code® CSA C22.1. The AC and DC electric circuits are isolated from the enclosure.
  • Page 23 INSTALLATION NOTE S2 (insulation stripping length) is 2mm-3mm longer than S1 (OT cable terminal crimping area). 1. Strip the insulation of the wire past the cable crimping area of the OT terminal then use a hydraulic crimp tool to crimp the terminal. The crimped portion of the terminal must be insulated with heat shrinkable tube or insulating tape.
  • Page 24 There are 2 communication ports on the inverter. One is a 4-Pin COM port and the other is a 16-Pin COM port. The 4-Pin COM port is used to connect Ledvance datalogging stick (please refer to manuals of Ledvance datalogging sticks for details).
  • Page 25 INSTALLATION A - Main cable (Diameter: 4-6mm) B - Locking nut (Torque: 3.5-4N.m) C - Sleeve D - COM Wire (Dimension: 0.75-3mm², stripping length: 10-12mm) E-Locking Screw (Torque: 0.4-0.6N.m) F - Connector Connect Steps: 1. Lead the main cable through the locking nut and the sleeve. 2.
  • Page 26 INSTALLATION DISCONNECTION STEPS: Press the button on both sides of the connector and pull the connector to disconnect from the COM port. . Use the unlock tool to insert into the groove on the sleeve and pull the sleeve to disconnect from the connector.

  • Page 27: Communication & Monitioring

    MONITORING FOR A SINGLE INVERTER Every inverter can connect a Ledvance one-to-one datalogging stick for remote monitoring purpose. The datalogging stick should be directly connected to the 4-pin COM port at the bottom of the inverter. It is a simple plug and play design with fast installation time.

  • Page 28: Drm Connection/ Logic Interface Connection

    RS485 OUT A COM2 485-B RS485 OUT B The bus RS485 cable can run into a Ledvance one-to-multiple datalogging box or any compatible 3rd party monitoring devices, PPC or plant SCADA. DRM CONNECTION/ LOGIC INTERFACE CONNECTION The AS/NZS 4777.2:2020 requires inverters to support demand response modes (DRM). Ledvance Australian version inverters fully comply with the DRM requirements in AS/NZS 4777.2:2015.
  • Page 29 Some European countries may require a simply logic interface relay or contactor switch to operate the RUN/STOP of inverters. For Ledvance European version inverters, the Pin 13 and Pin 14 can be used to perform the control logic (not available in South Africa).

  • Page 30: Meter Connection

    COMMUNICATION & MONITIORING METER CONNECTION The inverter can work with a three phase smart meter to achieve Export Power Management function and/or 24hour consumption monitoring function. The Pin 1 and Pin 2 of the 16-Pin COM port are used for Meter RS485 communication. Definition Meter RS485-A Meter RS485-B...
  • Page 31 COMMUNICATION & MONITIORING Pin 1&2 on the 16-Pin Connector INV L1 Grid L1 INV L2 Grid L2 INV L3 Grid L3 INV N Grid N INV PE Grid PE 21 22 1718 19 20 Ua Ub Uc N Ia* Ia Ib* Ib Ic * Ic L1 L2 L3 N PE Load External CT Type Meter - “Meter in Load”...

  • Page 32: Commissioning

    Verifying grid standard for country of installation Ledvance inverters are used worldwide and feature preset standards for operating on any grid. Although the grid standard is set at the factory, it is essential the grid standard be verified for the country of installation before commissioning.

  • Page 33: Setting A Custom Grid Standard

    COMMISSIONING 3. Use the UP/DOWN keys to highlight the SELECT STANDARD option. Press ENTER to select. 4. Select the grid standard for the country of installation. Press the UP or DOWN key to select the standard. Press the ENTER key to confirm the setting. Press the ESC key to cancel changes and return to the previous menu.

  • Page 34: Ac Connections

    A phase rotation test is recommended to ensure the phases have been connected in the appropriate order. Ledvance inverters do not require a specific phase rotation connection. However, the local utility may require a specific phase rotation or a record of the phase configuration of the installation.

  • Page 35: Start-Up And Shutdown

    The red DC POWER LED and LCD will be continuously lit. 4. Ledvance inverters are powered from the DC side. When the inverter detects DC power that is within start-up and operating ranges, the inverter will turn on. After turn-on, the inverter will check internal parameters, sense and monitor AC voltage, frequency rate and the stability of the supply grid.

  • Page 36: Normal Operation

    3. Advanced Info. 4. Advanced Settings INFORMATION The Ledvance three phase inverter main menu provides access to operational data and information. The information is displayed by selecting "Information" from the menu and then by scrolling up or down. Document No.: LDV-LT-50/60-F2-01-UM_11.2023...
  • Page 37 NORMAL OPERATION Display Duration Description V_DC01: 0000.0A I_DC01: +000.0A V_DC: Shows input DC voltage. 10 sec I_DC: Shows input DC current. V_DC06: 0000.0A I_DC06: +000.0A V_A: 000.0V I_ A: 000.0A V_A(B,C): Shows the grid's voltage value. 10 sec I_A(B,C): Shows the grid's current value. V_C: 000.0V I_ C: 000.0A Status: Generating...

  • Page 38: Settings

    Set address This function is used to set the address when multi inverters are connected to three monitor. The address number can be assigned from “01”to “99”. The default address number of Ledvance Three Phase Inverter is “01”. Press the UP/DOWN keys to set the address. Press the ENTER key to save the settings.

  • Page 39: Advanced Info - Technicians Only

    NORMAL OPERATION ADVANCED INFO - TECHNICIANS ONLY NOTE To access to this area is for fully qualified and accredited technicians only. Enter menu “Advanced Info.” and “Advanced settings” (need password). Select “Advanced Info.” from the Main Menu. The screen will require the password as below: The default password is “0010".
  • Page 40 NORMAL OPERATION Version The screen shows the model version of the inverter. And the screen will show the software version by pressing the UP and DOWN at the same time. Model: 08 Software Version: D20001 Daily Energy The function is for checking the energy generation for selected day. YES=<ENT>...
  • Page 41 NORMAL OPERATION 2022-01: 0510kWh 2022-01: 0610kWh Yearly Energy The function is for checking the energy generation for selected year. YES=<ENT> NO=<ESC> Select: 2019 Press DOWN key to move the cursor to day and year, press UP key to change the digit. Press ENTER after the date is fixed.

  • Page 42: Advanced Settings - Technicians Only

    NORMAL OPERATION ADVANCED SETTINGS - TECHNICIANS ONLY NOTE To access to this area is for fully qualified and accredited technicians only. Select Advanced Settings from the Main Menu to access the following options: 1. Select Standard 2. Switch ON/OFF 3. Clear Energy 4.

  • Page 43: Switch On/Off

    The initial value of the User-Def standard is for reference only. It does not represent a correct value suitable for use. NOTE For different countries, the grid standard needs to be set as different according to local requirements. If there is any doubt, please consult Ledvance service technicians for details. SWITCH ON/OFF → Grid ON/OFF 24H Switch Grid ON/OFF →...
  • Page 44 Until the sunrise, the system will start to work again while the meter data can be uploaded to the Ledvance monitoring system to calibrate the load consumption data.
  • Page 45 NORMAL OPERATION Calibrate Energy Maintenance or replacement could clear or cause a different value of total energy. Use this function could allow user to revise the value of total energy to the same value as before. If the monitoring website is used the data will be synchronous with this setting automatically.

  • Page 46: Restore Settings

    Only applicable if Ledvance monitoring system is used. Inverters can work with a smart meter to monitor the load consumption data for the whole day and the data will be displayed on the Ledvance monitoring system. Smart meter can only be installed on the grid side.
  • Page 47 OFF: Functions are disabled Meter in Load: Ledvance Smart Meter is connected in the load branch circuit. Meter in Grid: Ledvance Smart Meter is connected in the grid connection point (The backflow power is default as 0W). Consumption Monitor: Ledvance Smart Meter is connected in the grid connection point (The backflow power setting is not applicable).
  • Page 48 NORMAL OPERATION Backflow Power The setting is used to define the allowed export power into the grid. The setting range is between 00000W to 29900W. ->Set Backflow Power YES=<ENT> NO=<ESC> Power:-00000W Press the UP/DOWN keys to set data. Press the ENTER key to set backflow power. Then press DOWN keys to move the cursor, press UP to change the number.
  • Page 49 NORMAL OPERATION Backflow Work Mode This submenu is used for set backflow work mode: 01, 02. “01” is the default mode. ->Backflow Work Mode YES=<ENT> NO=<ESC> Mode:01 Mode “01”, As shown in the figure below, the average limiting mode, the output power of each phase is the average of the three-phase load power, and it is more than the phase of the lowest power in three phases.

  • Page 50: Restart Hmi

    Inverter Meter EXTERNAL EPM SET This setting should only be turned on when Ledvance external EPM device is used. Two options are available: 5G-EPM and Others-EPM. ->5G-EPM Others-EPM 5G-EPM Failsafe Option should be turned ON when 5G series EPM device is used Others-EPM Failsafe Option should be turned ON when 2G series EPM device is used Only one option can be activated each time.

  • Page 51: Fan Test

    NORMAL OPERATION FAN TEST NOTE This section is applicable to maintenance personel only. Selecting “Fan Test” displays the sub-menu shown below: Are you sure? YES=<ENT> NO=<ESC> Fan Test is a factory test function. Press the ENTER key to start the test. Press the ESC key to return to the previous menu.

  • Page 52: I/V Curve

    NORMAL OPERATION I/V CURVE This function is used to scan the I/V characteristic curves of each PV strings. →Set I/V Curve I/V Curve Scan Set I/V Curve This setting can set the scanning voltage start point and the voltage interval. Start_V: 850V Interval_V: 010V Start_V: The start voltage of the I/V scan.

  • Page 53: Afci Function

    NORMAL OPERATION AFCI FUNCTION Ledvance inverters have the built-in AFCI function which can detect the arc fault on the DC circuit and shut down the inverter to prevent a fire disaster. Enable the AFCI function The AFCI function can be enabled in the following.

  • Page 54: Maintenance

    Never use any solvents, abrasives or corrosive materials to clean the inverter. NIGHT TIME PID-RECOVERY FUNCTION Ledvance Three phase Inverters integrates optional Night Time PID-Recovery module and it can recover the PID effect during night thus protect the PV system from degradation.

  • Page 55: Fan Maintenance

    MAINTENANCE FAN MAINTENANCE If the fan does not work properly, the inverter will not be cooled effectively and it may affect the effective operation of the inverter. Therefore, it is necessary to clean or replace a broken fan as follows: 1.

  • Page 56: Troubleshooting

    TROUBLESHOOTING INVERTER MESSAGES The inverter is designed in accordance with the most important international grid-tied standards and safety and electromagnetic compatibility requirements. Before delivering to the customer, the inverter has been subjected to several tests to ensure its optimal operation and reliability. In case of failure, the LCD screen will display an alarm message.
  • Page 57 Please keep ready with you the following information before contacting us: 1. Serial number of Ledvance Three Phase Inverter; 2. The distributor/dealer of Ledvance Three Phase Inverter (if available); 3. Installation date; 4. The description of problem (i.e. the alarm message displayed on the LCD and the status of the LED status indicator lights.
  • Page 58 SPECIFICATIONS Model LT-50K F2 Max. DC input voltage (V) 1100 Rated DC voltage (V) Start-up voltage (V) MPPT voltage range (V) 180 - 1000 Max. input current (A) 5*32 Max. short circuit input current (A) 5*40 MPPT number/Max input strings number...
  • Page 59 SPECIFICATIONS Model LT-60K F2 Max. DC input voltage (V) 1100 Rated DC voltage (V) Start-up voltage (V) MPPT voltage range (V) 180...1000 Max. input current (A) 6*32 Max. short circuit input current (A) 6*40 MPPT number/Max input strings number 6/12 Rated output power (W) 60000 Max.

  • Page 60: Appendix

    This instruction indicates how to change the grid code and what code should be selected in different places. This following list illustrates the grid standard options in the inverter which are subject to change. It is for your reference only. If customer has any doubts or uncertainty, please consult Ledvance service department for confirmation.
  • Page 61 APPENDIX Code in LCD Country/Region Comments EIFS- SW Sweden For Swedish Low Voltage Grid France France For French Low Voltage Grid C10/11 Belgium For Belgian Low Voltage Grid NRS097 South Africa For South African Low Voltage Grid CEI0-21 Italy For Italian Low Voltage Grid EN50549L General EN50549-1 requirement which meets local (EN50549-1)

This manual is also suitable for:

Lt-60k f2

Table of Contents