Ledvance LT-80K F2 User Manual
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Ledvance LT-80K F2 User Manual

Ledvance LT-80K F2 User Manual

Three phase inverter
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LEDVANCE USER MANUAL
Ledvance Three Phase Inverter
LT-(80-110)K F2
LEDVANCE.COM

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Summary of Contents for Ledvance LT-80K F2

  • Page 1 LEDVANCE USER MANUAL Ledvance Three Phase Inverter LT-(80-110)K F2 LEDVANCE.COM...

  • Page 2: Table Of Contents

    CONTENTS INTRODUCTION Product Description Unpacking and storage SAFETY INSTRUCTIONS Safety Symbols General Safety Instructions Notice For Use Notice for Disposal INSTALLATION Environmental Considerations Product Handling Mounting the lnverter Electrical Connections COMM.&MONITORING RS485 Communication PLC Communication Logic interface connection COMMISSIONING Selecting the appropriate grid standard Changing the grid standard Setting a custom grid standard Preliminary checks...

  • Page 3: Introduction

    INTRODUCTION Product Description Ledvance Three phase Inverters covert DC photovoltaic(PV) array into alternating current(AC) power that can satisfy local loads as well as feed the power distribution grid. This manual covers the three phase inverter model listed below: LT-80K F2, LT-100K F2, LT-110K F2...

  • Page 4: Unpacking And Storage

    INTRODUCTION Unpacking and storage The inverter ships with all accessories in one carton. When unpacking, please verify all the parts listed below are included: Part# Description Number Remarks Inverter Mounting Bracket Fastening screw Hexagon bolt M6*12 DC connector 8 for 50K-LV 12for(60-75) K-LV12 for(75-80) K16for(100-110)K...
  • Page 5 INTRODUCTION Storage If the inverter is not installed immediately, storage instructions and environmental conditions are as below: -Use the original box to repackage the inverter, seal with adhesive tape with the desiccant inside the box. -Store the inverter in a clean and dry place, free of dust and dirt. The storage temperature must be between -40 - 70°Cand humidity should be between 0 to 95%, non-condensing.

  • Page 6: Safety Instructions

    SAFETY INSTRUCTIONS Safety Symbols Safety symbols used in this manual, which highlight potential safety risks and important safety informa- tion, are listed as follows: DANGER: WARNING symbol indicates important safety instructions, which if not correctly followed, could result in serious injury or death. NOTE: “Note”Symbol indicates important safety instructions, which if not correctly followed, could result in damage to or the destruction of the inverter.

  • Page 7: Notice For Use

    SAFETY INSTRUCTIONS WARNING: The inverter can only accept a PV array as a DC input. Using any other type of DC source could damage the inverter. 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 techni- cian only).

  • Page 8: Installation

    INSTALLATION Environmental Considerations Select alocation for the inverter When selecting a location for the inverter, consider the following: WARNING: Risk of fire Despite careful construction, electrical devices can cause fires. -Do not install thas containing highly flammable materials or gasses -Do not install the inverter in potentially explosive atmospheres.
  • Page 9 INSTALLATION Examples of correct and incorrect installations Tilt angle>15° Ground clearance >2300mm Recommended Installation locations Wall and Framework Installation 1.The installation of the inverter needs to consider the local weather conditions, and take measures such as rain and snow protection if necessary. 2.The installation angle between inverter and wall should be less than 15°.

  • Page 10: Product Handling

    INSTALLATION Installation environment requirements *Avoid Direct Sunlight Installation of the inverter in a location exposed to direct sunlight should be avoided. Direct exposure to sunlight could cause:Inverter temperature rises. Output power lim ation (Leads to a reduction of system generation). *Please ensure the ventilation and well heat dissipation Do not install the inverter in a small, closed room where air cannot freely circulate.

  • Page 11: Mounting The Lnverter

    INSTALLATION Inverter handles WARNING: Due to the weight of the inverter, contusions or bone fractures could occur when incorrectly lifting and mounting the inverter. When mounting the inverter, take the weight of the inverter into consideration.Use a suitable lifting technique when mounting. Mounting the lnverter The inverter can be mounted to the wall or metal array racking.
  • Page 12 INSTALLATION Inverter wall mounting for (100-110)K and (50-75)K-LV Inverter wall mounting for (100-110)K and (50-75)K-LV (both with AC switch) Document No.: LDV-LHT-HV-F1-01-IM_04.2023 Document No.: LDV-LHT-HV-F1-01-IM_04.2023...
  • Page 13 INSTALLATION Wall mounting Refer to the below picture, Inverter shall be mounted vertically. The steps to mount the inverter are listed below. 1.Refer to the first below picture, drill heles for mounting screws based on the hole diameter of bracket using a precision drill keeping the drill perpendicular to the wall.
  • Page 14 INSTALLATION Rack mounting The steps to mounted to the rack are listed below: 1.Select a location for the inverter -With an lP66 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 15 INSTALLATION 3.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. -Drill the marked holes. lt is recommended to apply anti-corrosive paint at the hole for corrosion protection.

  • Page 16: Electrical Connections

    INSTALLATION Electrical Connections Inverter design uses PV style quick-connect terminal. The top cover needn't be opened during DC electrical connection. The labels located the bottom of the inverter are described below picture. All electrical connections are suitable for local or national standard. Parts Connection Cable size...
  • Page 17 INSTALLATION Grounding To effectively protect the inverter, two grounding methods must be performed. Connect the AC grounding cable (Please refer to page 29 ) 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 the outdoor copper-core cable.
  • 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 (see the below picture). Strip wire Note: After crimping the terminal to the wire, inspect the connection to ensure the terminal is solidly crimped to the wire.
  • Page 19 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.
  • Page 20 INSTALLATION 5.Measure PV voltage of DC input with multimeter, verify DC input cable polarity (see the below picture), and ensure each string voltage is in range of inverter operation.Connect DC connector with inverter until hearing a slight clicking sound indicating successful connection,(see the below picture) Multimeter measurement Connect the DC connectors to the lnverter Cable type...
  • Page 21 INSTALLATION Requirements for the PV modules per MPPT input: -All PV modules must be of the same type and power rating. -Please ensure the PV strings are evenly connected to the inverter and try to utilize all the MPPT trackers. -AlI PV modules must be aligned and tited identically.
  • Page 22 INSTALLATION String Input Instructions NOTE: To achieve the best power generation effect, add components according to the recommended solution. Recommended access scheme for 182mm component of(75-80)K inverter The (75-80)K inverter has three sets of power modules inside, as shown in the figure below in order to achieve the best power generation, we strongly recommend that the three power modules are evenly connected to the solar panels.(Note: The "evenly"...
  • Page 23 INSTALLATION Recommended access scheme for 210mm component of(75-80)K inverter The (75-80)K inverter has three sets of power modules inside, as shown in the figure below.In order to achieve the best power generation, we strongly recommend that the three power modules are evenly connected to the solar panels.(Note: The "evenly"...
  • Page 24 INSTALLATION Recommended access scheme for 182mm component of(100-110K) inverter The (100-110)K inverter has four sets of power modules inside, as shown in the figure below.In order to achieve the best power generation, we strongly recommend that the four power modules are evenly connected to the solar panels.(Notex The "evenly"...
  • Page 25 INSTALLATION Recommended access scheme for 210mm component of(100-110)K inverter The (100-110)K inverter has four sets of power modules inside, as shown in the figure below, In order to achieve the best power generation, we strongly recommend that the four power modules are evenly connected to the solar panels.(Note: The "evenly"...
  • Page 26 INSTALLATION Recommended access scheme for 182mm component of 50K-LV inverter The 50K-LV inverter has four sets of power modules inside, as shown in the figure below.in order to achieve the best power generation, we strongly recommend that the four power modules are evenly connected to the solar panels.
  • Page 27 INSTALLATION Recommended access scheme for 210mm component of 50K-LV inverter The 50K-LV inverter has four sets of power modules inside, as shown in the figure below.In order to achieve the best power generation, we strongly recommend that the four power modules are evenly connected to the solar panels.(Note: The "evenly"...
  • Page 28 INSTALLATION Recommended access scheme for 182mm component of (60-75)K-LV inverter The (60-75)K-LV inverter has four sets of power modules inside, as shown in the figure beloIn order to achieve the best power generation, we strongly recommend that the four power modules are evenly connected to the solar panels.(Note: The "evenly"...
  • Page 29 INSTALLATION Recommended access scheme for 210mm component of (60-75)K-LV inverter The (60-75)K-LV inverter has four sets of power modules inside, as shown in the figure below.ln order to achieve the best power generation, we strongly recommend that the four power modules are evenly connected to the solar panels, (Note: The "evenly"...
  • Page 30 INSTALLATION Case 3 Power Module 1 Power Module 2 Power Module 3 Power Module 4 (PV1-3) (PV5-7) (PV9-11) (PV13-15) ≤7.6≤7.6 ≤7.6KW ≤7.6≤7.6 ≤7.6KW ≤7.6≤7.6 ≤7.6KW Connect grid side of inverter WARNING: An over-current protection device must be used between the inverter and the grid.
  • Page 31 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/NFPA70 or the Canadian Electrical Code@ CSA C22.1.The AC and DC electric circuits are isolaled from the enclosure. If required by section 250 of the National Elecical Code@,ANSI/ NFPA 70, the installer is responsible for grounding the system.
  • Page 32 INSTALLATION 1.Strip the end of AC cable insulating jacket about 300mm then strip the end of each wire. 300MM Strip AC cable NOTE： S2 (insulation stripping length) is 2mm-3mm longer than S1.(OT cable terminal crimping area) 2.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.
  • Page 33 Neutral wiring without Neutral NOTE： Ledvance three phase inverters integrate neutral connection point.However, with or without neutral connected won't affect the normal operation of inverter itself. Please refer to the local grid requirement if need neutral cable connected.

  • Page 34: Comm.&Monitoring

    COMM.&MONITORING There are 5 communication terminals on the inverters. COM1 is a 4-pin connector reserved for WiFi/Cellular datalogger. COM2- COM3 are used for RS485 communication between inverters. Both RJ45 and terminal block are provided for use. COM4 or COM5 can be used for DRM connection. Detailed connection please refer to next page the picture of RJ45 port.
  • Page 35 COMM.&MONITORING Use the network wire stripper to strip the insulation layer off the communication cable. Using the standard wire sequence referenced in TIA/ElA 568B, separate the wires in the cable. Use a network cable tool to trim the wire. Flatten the wire in the order shown in below picture. Correspondence between the cables and RJ45 plug the stitches of plug...

  • Page 36: Plc Communication

    COMM.&MONITORING Connection of Terminal board. 1.Strip the insulation and shield to a suitable length. Use diagram below as a guide (see the below picture). 2.Remove the cap nut from the waterproof cable glands labeled at the bottom of the inverter. Remove the plug from the fitting.(see the below picture).

  • Page 37: Logic Interface Connection

    COMM.&MONITORING PLC is available for multiple inverter monitoring Data logger PV Strings Inverter PLC CCO PV Strings Inverter Transformer Grid PV Strings Inverter RS485 PV Strings Inverter Multiple inverter monitoring system(PLC) Logic interface connection Logic interface is required by some local regulations that can be operated by a simple switch or contactor (Not available in South Africa).When the switch is closed the inverter can operated normally.

  • Page 38: 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 39: 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 40: Preliminary Checks

    WARNING: Input voltages higher than the maximum value accepted by the inverter (see“Specifications”) may damage the inverter. Although Ledvance inverters feature reverse polarity protection, prolonged connection in everse polarity may damage these protection circuits and or the inverter. Leakage to ground Measure leakage to ground to check for a DC ground fault.
  • Page 41 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 42: Start 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, hertz rate and the stability of the supply grid.

  • Page 43: Normal Operation

    3.Advanced Info. 4.Advanced Settings Information The Ledvance three Phase lnverter main menu provides access to operational data and information The information is displayed by selecting "lnformation" from the menu and then by scrolling up or down. Document No.: LDV-LHT-HV-F1-01-IM_04.2023 Document No.: LDV-LHT-HV-F1-01-IM_04.2023...
  • Page 44 NORMAL OPERATION Display Duration Description VPV_Total: 1000.0V VPV_Total: Shows input voltage total. 10 sec IPV_Total: +99.0A IPV_Total: Shows input current total. V_A: Shows the grid's voltage value V_A: 345.7 10 sec I_A: Shows the grid's current value I_A: 109.0A V_C: 345.0 V_C: Shows the grid's voltage value.

  • Page 45: Settings

    This function is used to set the address when muti inverters are connected to three monitor.The address number can be assigned from “01"to “99"(see the below picture). The default address number of Ledvance Three Phase Inverter is 01 YES=<ENT> NO=<ESC>Set...

  • Page 46: 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 lnfo." from the Main Menu. The screen will require the password as below: YES=<ENT>...
  • Page 47 NORMAL OPERATION Version The screen shows the model version of the inverter, And the screen will show the software ver by pressing the UP and DOWN at the same time.(see the below picture) Model:08 Software Version:D20001 Model Version and Software Version Daily Energy The function is for checking the energy generation for selected day.
  • Page 48 NORMAL OPERATION Yearly Energy The function is for checking the energy generation for selected year. YES=<ENT>NO=<ESC> Select:2019 Select year for yearly energy 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 49: Advanced Settings - Technicians Only

    NORMAL OPERATION Advanced Settings - Technicians Only NOTE: To access to this area is for fully qualified and accredited technicians only Please follow section in" Advanced info-Technicians Only"to enter password to access this menu. Select Advanced Settings from the Main Menu to access the following options: 1.Select Standard 2.Grid ON/OFF 3.Clear Energy...
  • Page 50 NORMAL OPERATION OV-G-V1:220---374V OV-G-F1:50.1-65Hz OV-G-V1-T:0.01---300S OV-G-F1-T:0.01---300S OV-G-V2:220---374V SOV-G-F2:50.1-65Hz OV-G-V2-T:0.01---300S OV-G-F2-T:0.01---300S UN-G-V1:110---277V UN-G-F1:45-59.9Hz UN-G-V1-T:0.01---300S N-G-F1-T:0.01---300S UN-G-V2:110---277V UN-G-F2:45-59.9Hz UN-G-V2-T:001---300S UN-G-F2-T:0.01---300S Startup-T:10-600S Restore-T:10-600S Ranges for User-Def OV-G-V1:120---180V OV-G-F1:50.2-53Hz(60.2-63Hz) OV-G-V1-T:0.1---9S OV-G-F1-T:0.1---9S OV-G-V2:120---180V OV-G-F2:51-53Hz(61-63Hz) OV-G-V2-T:0.1---1S OV-G-F2-T:0.1---9S UN-G-V1:55---121V UN-G-F1:47-49.5Hz(57-59.5Hz) UN-G-V1-T:0.1---9S UN-G-F1-T:0.1---9S UN-G-V2:55---121V UN-G-F2:47-59Hz(57-59Hz) UN-G-V2-T:0.1---1S UN-G-F2-T:0.1---9S Startup-T:10-600S Restore-T:10-600S Ranges for User-Def(50-75)K-LV Document No.: LDV-LHT-HV-F1-01-IM_04.2023...
  • Page 51 If there is any doubt, please consult Ledvance service technicians for details. Grid ON/OFF This function is used to start up or stop the power generation of Ledvance Three Phase lnverter. Grid ON Grid OFF Set Grid ON/OFF...
  • Page 52 NORMAL OPERATION Power Control Active and reactive power can be set through power setting button.There are 5item for this sub menu: 1.Setoutput power 2.Set Reactive Power 3.Out P With Restore 4.Rea P With Restore 5.Select PF Curve This function is applicable by maintenanee personnel only, wrong operation will prevent the inverter from reaching maximum power.
  • Page 53 NORMAL OPERATION STD Mode Settings Selecting“STD Mode.Settings”displays the sub-menu shown below: 1.Working Mode Set 2.Power Rate Limit 3.Freq Derate Set 4.10mins Voltage Set 5. Power Priority 6.Initial Settings 7.Voltage PCC Set This function is applisable by maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power.
  • Page 54 NORMAL OPERATION HMI Update This section is applicable to maintenance personnel only. Selecting“Updater” displays the sub-menu shown below: HMl Current Ver.: 02 YES=<ENT> NO=<ESC> Updater is for updating LCD firmware. Press the ENTER key to start the process. Press the ESC key to return to the previous menu. External EPM Set This function is turned on when the EPM is external.
  • Page 55 NORMAL OPERATION Restart HMI The function is used for restart the HMl. This function is applicable by maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power. Debug Parameter This section is applicable to maintenance personnel only. Debug Parameter as shown as below: S16DAT1:+0000 S16DAT2:+0000...
  • Page 56 NORMAL OPERATION DSP Update The function is used for update the DSP This function is applicable by maintenance personnel only, wrong operation will prevent the inverter from reaching maximum power. Compensation Set This function is used to calibrate inverter output energy and voltage, lt will not impact the energy count for inverter with RGM.
  • Page 57 NORMAL OPERATION Setl/V Curve This setting can set the scanning voltage start point and the voltage interval. Start_V: 850V Interval_ V: 010V SetI/V Curve Start_V: The start voltage of the l/V scan.(Adjustable from 300V-1000V) Interval_V: The scanning voltage interval.(Adjustable from 1-100V) In total,60 data points can be scanned.

  • Page 58: Afci Function

    NORMAL OPERATION AFCI function Ledvance inverters have the buit-in AFCI function which can detect the arc fault on the DC circuitand shut down the inverter to prevent a fire disaster. Enable the AFCI function The AFCI function can be enabled in the fallowing.Path: Advanced Setting -> Password:0010 ->Special Settings ->...

  • Page 59: Maintenance

    NOTE: Never use any solvents, abrasives or corrosive materials to clean the inverter. Anti-PID Function Ledvance Three phase lnverters integrates optional Anti-PID module and it can recover the PID effect during night thus protect the PV system from degradation. Inverter The Anti-PID module repairs the PID effect of the PV model at night.

  • Page 60: 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.Turn off the“Grid ON/OFF”...

  • Page 61: Troubleshooting

    TROUBLESHOOTING 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 operationand reliability. in case of failure, the LCD screen will display an alarm message, ln this case, the inverter may stop feeding into the grid.
  • Page 62 TROUBLESHOOTING Alarm Message Failure desciption Solution INI-FAULT Initialization system fault -Restart inverter or contact installer DSP-B-FAULT Comm.failure between main and slave DSP 12Power-FAULT 12V power supply fault PVISO-PRO01/02 PV isolation protection -Remove all DC input,reconnect and restart inverter one by one -Identify which string cause the fault and check the isolation of the string.
  • Page 63 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 lnverter (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 64: Specifications

    SPECIFICATIONS Model LT-75k F2 Max. DC inpul vollage (Volts) 1100 Rated DC voltage (Volts) Start.up voltage (Volts) MPPT voltage range (Volts) 160...1000 Max.input current (Amps) 40A/32A/40A/32A/40A/32A Max short circuit current of each MPPT (Amps) MPPT number/Max input strings number 6/12 Rated output power(Watts) 80000 Max.
  • Page 65 SPECIFICATIONS Model LT-80k F2 Max. DC inpul vollage (Volts) 1100 Rated DC voltage (Volts) Start.up voltage (Volts) MPPT voltage range (Volts) 160...1000 Max.input current (Amps) 40A/32A/40A/32A/40A/32A Max short circuit current of each MPPT (Amps) MPPT number/Max input strings number 6/12...
  • Page 66 SPECIFICATIONS Model LT-100k F2 Max. DC inpul vollage (Volts) 1100 Rated DC voltage (Volts) Start.up voltage (Volts) MPPT voltage range (Volts) 160...1000 Max.input current (Amps) 40A/32A/40A/32A/40A/32A/40A/32A Max short circuit current of each MPPT (Amps) MPPT number/Max input strings number 8/16 Rated output power(Watts) 100000 Max.
  • Page 67 SPECIFICATIONS Model LT-110k F2 Max. DC inpul vollage (Volts) 1100 Rated DC voltage (Volts) Start.up voltage (Volts) MPPT voltage range (Volts) 160...1000 Max.input current (Amps) 40A/32A/40A/32A/40A/32A/40A/32A Max short circuit current of each MPPT (Amps) MPPT number/Max input strings number 8/16 Rated output power(Watts) 100000 Max.
  • Page 68 SPECIFICATIONS Model LT-50k-LV F2 Max. DC inpul vollage (Volts) Rated DC voltage (Volts) Start.up voltage (Volts) MPPT voltage range (Volts) 160...800 Max.input current (Amps) 8*20 Max short circuit current of each MPPT (Amps) MPPT number/Max input strings number Rated output power(Watts) 50000 Max.
  • Page 69 SPECIFICATIONS Model LT-60k-LV F2 Max. DC inpul vollage (Volts) Rated DC voltage (Volts) Start.up voltage (Volts) MPPT voltage range (Volts) 160...800 Max.input current (Amps) 12*20 Max short circuit current of each MPPT (Amps) MPPT number/Max input strings number 8/12 Rated output power(Watts) 60000 Max.
  • Page 70 SPECIFICATIONS Model LT-75k-LV F2 Max. DC inpul vollage (Volts) Rated DC voltage (Volts) Start.up voltage (Volts) MPPT voltage range (Volts) 160...800 Max.input current (Amps) 12*20 Max short circuit current of each MPPT (Amps) MPPT number/Max input strings number 8/12 Rated output power(Watts) 75000 Max.

This manual is also suitable for:

Lt-100k f2Lt-110k f2

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