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Jntech JNP550L-V5 Quick Installation

Solar pumping inverter
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Quick Installation
Solar pumping inverter
JNP550L-V5 JNP750L-V5 JNP1K1L-V5
JNP1K5L-V5 JNP2K2L-SE-V5 JNP2K2L-V5
JNP3KL-V5 JNP3K7L-V5
JNP2K2H-V5 JNP3KH-V5 JNP3K7H-V5 JNP4KH-V5
JNP5K5H-V5 JNP7K5H-V5
JNP11KH-V4 JNP15KH-V4 JNP18K5H-V4
JNP22KH-V5 JNP30KH-V5 JNP37KH-V5
JNP45KH-V5 JNP55KH-V5
JNP11KH-V5
JNP15KH-V5
JNP18K5H-V5
用户手册
JNPxG-QI-EN-V1.1

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  • Page 1 Quick Installation Solar pumping inverter JNP550L-V5 JNP750L-V5 JNP1K1L-V5 JNP1K5L-V5 JNP2K2L-SE-V5 JNP2K2L-V5 JNP3KL-V5 JNP3K7L-V5 JNP2K2H-V5 JNP3KH-V5 JNP3K7H-V5 JNP4KH-V5 JNP5K5H-V5 JNP7K5H-V5 JNP11KH-V4 JNP15KH-V4 JNP18K5H-V4 JNP22KH-V5 JNP30KH-V5 JNP37KH-V5 JNP45KH-V5 JNP55KH-V5 JNP11KH-V5 JNP15KH-V5 JNP18K5H-V5 用户手册 JNPxG-QI-EN-V1.1...

  • Page 2: Table Of Contents

    CONTENT QUICK INSTALLATION GUIDELINE FOR SOLAR PUMPING INVERTER –JNP550L-V5 JNP750L-V5 JNP1K1L-V5 JNP1K5L-V5 JNP2K2L-SE-V5 ..................4 JNP2K2L-V5 JNP3KL-V5 JNP3K7L-V5 JNP4KL ....... 4 JNP2K2H-V5 JNP3KH-V5 JNP3K7H-V5 JNP4KH-V5 JNP5K5H-V5 JNP7K5H-V5 ................... 4 ................... 4 NVERTER NPACKING ....................5 NSTALLATION 2.1 Prepare Installation Tools ..............5 2.2 Installation Direction and spacing dimension ........
  • Page 3 6.1 Connecting Terminals of Inverter ............ 18 6.2 Cable Selection for Electrical Connection ........19 6.3 AC Side Electrical Connection ............19 6.4 DC Side Connection ................. 20 6.5 Inverter grounding ................21 6.6 Water Level Sensor Connection ............21 6.7 Communication connection ............
  • Page 4 10.4 Commissioning for JNP22KH-V5~JNP55KH-V5 ......45 11 A ..............52 PPENDIX ROUBLESHOOTING 11.1 Troubleshooting for JNP550L-V5~JNP18K5H-V4 ......52 11.2 Troubleshooting for JNP22KH-V5~JNP55KH-V5 ......54 QUICK INSTALLATION GUIDELINE FOR SOLAR PUMPING INVERTER – JNP11KH-V5 JNP15KH-V5 JNP18K5H-V5... 59 12 I ................59...

  • Page 5: Jnp2K2L-V5 Jnp3Kl-V5 Jnp3K7L-V5 Jnp4Kl

    Quick Installation Guideline for solar pumping inverter –JNP550L-V5 JNP750L-V5 JNP1K1L-V5 JNP1K5L-V5 JNP2K2L-SE-V5 JNP2K2L-V5 JNP3KL-V5 JNP3K7L-V5 JNP4KL JNP2K2H-V5 JNP3KH-V5 JNP3K7H-V5 JNP4KH-V5 JNP5K5H-V5 JNP7K5H-V5 1 Inverter Unpacking Check according to Packing List whether all the parts are correct and in good condition or not. Accessories are shown as below:...

  • Page 6: Installation

    2 Installation 2.1 Prepare Installation Tools The following tools will be needed in inverter installation and wire connection. Recommend Sketch map Name Function specification Crimp the PV cable core in Wire crimpers M2.5~M8 connector tube for PV connector. Used for drilling holes for Ф8 Electric drill installation bracket.

  • Page 7: Installation Of Inverter

    2.3 Installation of Inverter Step1: Drill holes in the selected installation position according to the size （ Hole distance 210mm） . Step2: Fix inverter in the located holes with bolts. Step3: Tighten the bolts, make the bolts cling to the wall. ·...

  • Page 8: Electrical Connection

    3 Electrical Connection 3.1 Connecting Terminals of Inverter The input and output terminals are shown as below: Solar pumping inverter PV array Water level sensor Grid Water pump RS485 module GPRS antenna Terminals Description Terminals Description PV array DC positive input terminals(PV+、PV-) ·...

  • Page 9: Cable Selection For Electrical Connection

    Output terminal, connect with AC pump (U、V、W) SENSOR Water level sensor signal input terminal(SY、 COM、 DG) ( optional) RS485 or GPRS communication interface (VCC、A、B、GND) (optional) Ground terminal Inverter model Recommended parameters of DC circuit breaker JNP550L-V5 440VDC,10A JNP750L-V5 440VDC,10A JNP1K1L-V5 440VDC,10A JNP1K5L-V5 440VDC,15A...

  • Page 10: Ac Side(Ac In And Motor) Electrical Connection

    AC cable and Cold-pressed Terminal(SC4-5). Step2: JNP550L-V5、JNP750L-V5、JNP1K1L-V5、JNP1K5L-V5、JNP2K2L-SE-V5: The AC conductor (R, S, PE, U, V, W) is fixed on the terminal through the corresponding waterproof terminal on the terminal cover. Notice: R is connected to the fire line, S is connected to the zero line, and PE is grounded. R, S and PE pass through the AC IN waterproof terminal, and U, V and W pass through the MOTOR waterproof terminal.

  • Page 11: Dc Side Connection

    waterproof connector to the corresponding terminal (U, V, W). JNP2K2H-V5、 JNP3KH-V5、 JNP3K7H-V5、 JNP4KH-V5、 JNP5K5H-V5、 JNP7K5H-V5: Fix the AC input cable through the AC IN waterproof connector to the corresponding terminal (R, S, T, PE), and fix the water pump power supply cable through the Motor waterproof connector to the corresponding terminal (U, V, W).

  • Page 12: Inverter Grounding

    3.5 Inverter grounding Make sure the reliable connection between ground terminal of Inverter and the earth! 3.6 Water Level Sensor Connection 3.6.1 Water level sensor interface define Water level sensor connector pins in inverter panel port are defined are shown below: ·...
  • Page 13 Terminal（SENSOR） Detail connector pin Dry protection pin, Connected black cable Overflow protection pin, Connected white cable Dry protection and Overflow protection common pin, Connected green cable · ·...
  • Page 14 3.6.2 Water level sensor connection Two kinds of water level sensor you can select are shown below: Sensor A Sensor B Notice ！ If you select overflow protection water level sensor, you need to set the value of “OF-F”, the LCD menu ”Settings” "OF-F"...
  • Page 15 B1 connect white cable B2 connect green cable To Water level sensor connector A1 connect black cable A2 connect green cable A:the Installation location of overflow high water level sensor. B:the Installation location of overflow low water level sensor. 1. C:the Installation location of pump dryed high water level sensor.

  • Page 16: Communication Connection

    ！ Notice If you choose Water Level Sensor B, please Notice the following aspects when intall: 1. For dry protection, the end with cable of sensor should be upwards; 2. For over-flow protection, the end with cable of sensor should be downwards. 3.7 Communication connection Communication connector pins in inverter panel port are defined are shown below:...

  • Page 17: Inverter Unpacking

    Quick Installation Guideline for solar pumping inverter – JNP11KH-V4 JNP15KH-V4 JNP18K5H-V4 4 Inverter Unpacking Check according to Packing List whether all the parts are correct and in good condition. Accessories are shown as below: Description Description PV pump inverter Ring Terminals Installation bracket Packing list Blue Ring tool...

  • Page 18: Installation

    5 Installation 5.1 Prepare Installation Tools Please refers to “2.1 Prepare Installation Tools”. 5.2 Installation Direction and spacing dimension Please refers to “2.2 Installation Direction and spacing dimension”. 5.3 Installation of Inverter Step1: Drill holes in the selected installation position according to the size and shape of installation bracket.

  • Page 19: Electrical Connection

    6 Electrical Connection 6.1 Connecting Terminals of Inverter The input and output terminals are shown as below: Solar pumping inverter Water pump PV array Earth Water level RS485 GPRS sensor Grid module antenna Terminals Description Terminals Description PV1+/ PV2+/PV3+ PV array DC positive input terminals PV1-/ PV2-/PV3- PV array DC negative input terminals AC IN...

  • Page 20: Cable Selection For Electrical Connection

    6.2 Cable Selection for Electrical Connection User can select cables for electrical connection according to the following specifications. Cable range（AWG） Cable recommended（AWG） DC side AC side DC side AC side Inverter U、V、W U、V、W PV+,PV- PV+,PV- R、S、T R、S、T JNP11KH-V4 JNP15KH-V4 JNP18K5H-V4 6.3 AC Side Electrical Connection Step1: Connecting of the wire of the connector: Operation Instruction...

  • Page 21: Dc Side Connection

    6.4 DC Side Connection Danger！ DC switch must be off, otherwise, it may cause casualty! Step1: Please connect the DC wire according to the following steps: Operation Instruction Operation Demonstration 1.Unscrew the fastening nuts of MC4 connector. 2. Strip off the DC cable insulation layer to a length of approx.

  • Page 22: Inverter Grounding

    6.5 Inverter grounding Make sure the reliable connection between ground terminal of Inverter and the earth! 6.6 Water Level Sensor Connection Water level sensor connector pins in inverter panel port are defined are shown below: Terminal（SENSOR） Detail connector pin pin1 Dry protection pin, Connected black cable pin2 Overflow protection pin, Connected white cable...
  • Page 23 Notice： More information about the communication module, please refer to the User and Installation Manual. · ·...

  • Page 24: Quick Installation Guideline For Solar Pumping

    Quick Installation Guideline for solar pumping inverter –JNP22KH-V5 JNP30KH-V5 JNP37KH-V5 JNP45KH-V5 JNP55KH-V5 7 Inverter Unpacking The product has been tested and checked carefully before transportation, but damage may be caused during transportation, therefore, the product should also be checked carefully before installation. Please check whether inverter outer packing is in good condition;...

  • Page 25: Installation Procedure

    Table3-1 Inverter and fittings table Description Status Solar Pump Inverter Standard Fixing rail Standard Water level sensor B Optiona Cold pressing terminal (SC4-5) Standard expansion bolt Standard certificate of inspection Standard specification Standard container loading list Standard Water level sensor A Optional pressure sensor Optiona...

  • Page 26: Installation Direction

    Ф5 Used for disassembling Cross inverter cover. screwdriver Inner Used for disassembly and hexagon assembly of inverter cover spanner panel. 8.2 Installation Direction The inverter should be installed vertically or titled backwards with a ● maximum angle of 10° . Do not install inverter tilted forwards.

  • Page 27: Installation Of Inverter

    100cm 100cm 100cm Figure5-2 Minimum spacing of adjacent installations Table5-1 Minimum spacing dimension Direction Minimum spacing Above 100cm Below 100cm Sides 100cm Front 100cm 8.3 Installation of Inverter Notice！ Do not use jackbolts or screws to install inverters on rocks or panels. Notice! Fix the inverter on the rock or panel with the toggle bolt or screw is not permitted.
  • Page 28 Step 1: Select an appropriate hole on the wall according to the size of the inverter. It is recommended to drill holes with a diameter of 8+1/-0mm, a depth of 60+5/-0mm, a spacing between left and right holes of 180mm, and a spacing between upper and lower holes of 170mm, and then drive the expansion bolt into the hole Figure 5-3 Bitmap of the JNPxH mounting hole...

  • Page 29: Electrical Connection And Disassembling

    Side view Top view Lock hole Figure 5-5 Completion effect of installation 9 Electrical Connection and Disassembling The electrical connection can be carried out when the mechanical installation of inverter is completed. The following operation specification must be followed when making electrical connection. Warning！...

  • Page 30: Cable Selection

    terminals, AC side input (AC IN) output (MOTOR) terminals, communication terminals and water level sensor terminals inside. As shown in the figure below. FIG. 6-1 External connection terminals of the inverter Table6-1 Description Terminals Description AC IN AC input terminals, including R,S,T,PE. PV array DC input terminals, including PV+,PV-.

  • Page 31: Dc Side Connection

    PV+、PV- U、V、W PV+、 PV- U、V、W JNP55KH-V5 JNP45KH-V5 JNP37KH-V5 JNP30KH-V5 JNP22KH-V5 9.3 DC Side Connection Danger！ When carrying out connection between PV array and inverter, the PV array should be covered with opaque materials and the DC-SWITCH should be disconnected, otherwise, the PV array may generate dangerous voltage, cause casualty.

  • Page 32: Ac Side Electrical Connection

    Step1: Please connect the wire of DC according to the following steps: Operation Instruction Operation Demonstration 7. Connect DC wire and cold terminal (SC35-8） firmly by crimping plier. Step2: Through the PV waterproof terminal on the terminal cover, fix the DC wire (PV +, PV -) on the terminal, pay attention to the positive and negative poles shouldn’t be connected reversely, and ensure that the circuit breaker at the DC side of the system is in the off state.
  • Page 33 Danger！ Ensure that all cables have no charge before electrical operation! Step1: Connect the wires first: Follow the steps below to connect the AC wires: Operation Instruction Operation Demonstration Step1. Fasten the three-phase input, three-phase output and grounding wires to the cold pressing terminal (SC35-8) with crimping pliers seperately.
  • Page 34 Notice！ The phase sequence between AC pump and inverter must be same, otherwise, it shall lead to less output or without water. Whether Phase sequence is corresponding or not should be tested when the pump system trial run for the first time. For single phase pump, there is no sequence required after start capacitors are moved out.

  • Page 35: Inverter Grounding

    Notice！ Different types of inverters have clear requirements on AC power supply voltage, frequency and power supply mode, etc. For specific requirements, please refer to the corresponding technical parameters table of each type of inverters in the appendix. It is strictly prohibited to connect power supply sources that do not meet the requirements to the inverter, otherwise the following consequences may occur: ●...
  • Page 36 Notice！ The water level sensors’ location is designed according to your system ● situation. Water level sensor can be bound in corresponding position on the ● pipeline connected to the pump. Other method also can be used to ensure the water level sensor is in the right position. The installation of water level sensor must be reliable and effective.
  • Page 37 Overflow protection pin Dry protection and Overflow protection common pin, 17.6.2 Water level sensor connection Two kinds of water level sensor you can select as shown below: Sensor Sensor Figure6-6 Water level sensor If you selected water level sensor A, then water sensor installation method is shown below: A1 connect to DG A2 connect to COM...

  • Page 38: Communication Connection

    B1 connect To SY B2 connect to COM To Wa te r le vel sen so r co nn ecto r A1 connect to DG A2 connect to COM A:the Installation location of overflow high water level sensor. B:the Installation location of overflow low water level sensor.
  • Page 39 monitoring equipment (computer). Figure6-10 Communication connection terminal The com part of the machine panel and the water level sensor use the same terminal block, and the pin definitions are shown in the table below: Table 6-5 COM terminal pin definition on machine panel Detail Terminal（SENSOR）...

  • Page 40: Disassembling

    Figure6-11 Diagram of single communication wiring The wiring diagram is schematic diagram, just take HEXIN converting module as an example. If the user choose other converter, need according to the converter‘s instructions, wiring the inverter’s A, B wires to the converter’s correct terminal.
  • Page 41 Notice！ Electrostatic discharging will cause damage to the inner components of inverter. We should carry out the antistatic measure before disassembling and assembling. 9.8.2 Mounting and dismounting of cover panel For maintenance reason, you may need open the cover of inverter, and ensure better seal performance, please operate according to the following instruction.

  • Page 42: Commissioning Guideline For Solar Pumping Inverter

    Commissioning Guideline for solar pumping inverter 10 Commissioning 10.1 Verify before Commissioning PV Arrays The PV array should be checked before operating the inverter, and to ensure that the positive and negative mustn’t be misconnect, Make sure that the open-circuit voltage of photovoltaic array doesn’t exceed the required voltage. DC Input Make sure that the DC terminals of the inverter are connected correctly and maintained consistent with the PV array.

  • Page 43: Lcd Panel Operating Instructions

    10.2 LCD Panel Operating Instructions Inverter LCD Display LED lights LCD display Buttons Name Color Instructions Indicator POWER Power light Green Light on When power on Running Green Light on under normal operation light Light on when error occur, off when error be FAULT Faulty light cleared...

  • Page 44: Commissioning For Jnp1K1L-V5~Jnp18K5H-V4

    10.3 Commissioning for JNP1K1L-V5~JNP18K5H-V4 10.3.1 Only DC Input, Disconnect grid input Switch on inverter’s DC switch or DC side electric connection, inverter start initialization. Initialize Waiting... R-Mode MPPT Pgrid State_AC Iaout Fout 0.00Hz Run/Stop Stop D-Mode Auto OF-F Notice！  At the first running, ender user need to long-press "ON / OFF"...
  • Page 45 R-Mode MPPT Pgrid RunInfo RunInfo RunInfo State_AC InverterInfo InverterInfo Iaout PumpInfo PumpInfo UP/DOWN ENTER ENTER Fout 0.00Hz After 3 secend Password Statistic Statistic Run/Stop Stop Settings Settings Settings D-Mode Auto Fault inquiry Fault inquiry OF-F Password Password Imotor 20.4A Error D-Power 1500W Time Time...

  • Page 46: Commissioning For Jnp22Kh-V5~Jnp55Kh-V5

    frequency as following. Step 1: Ensure the system is running and there has water output, enter to ”StopFreq”. Step 2: To reduce the value of “StopFreq”. Reduce by 5Hz each time and press "ENTER" to check the system performance. Keep reducing the value till the water just can not come out.
  • Page 47 Initialize Waiting... R-Mode MPPT Iaout Fout 0.00Hz Run/Stop Stop D-Mode Auto OF-F The inverter should set the motor parameters before operation, the parameters including rated voltage, rated current, rated power ,rated frequency, rated rotor speed and power factor. The motor nameplate parameters information should be related to the inverter parameters.
  • Page 48 COSφ(P.F.) 0.86 PF-Rated 0.86 After confirming the needed parameters of inverter, enter the motor parameters interface of LCD displayed screen. The parameters should be the same as listed in table. The detailed operating processes are shown as below. · ·...
  • Page 49 Password 时间设置 Time Error T-Limit 运行信息 RunInfo R-Mode MPPT RunInfo Para Set Inverterinfo Inverterinfo Password Pump Para Set UP/DOWN ENTER ENTER Pump Info Pump Info Is correct ENTER Password UP/DOWN Password Password SiteNum Set Statistic Statistic Iaout Clear S-Data ENTER MotorCtrlPara MotorCtrlPara Clear F-Data...
  • Page 50 10.4.3 The test of motor parameters and commissioning After modify the motor parameters, long-press the “ON/OFF” button to enter into testing status of motor parameters, when test succeed, then press “ENTER” to run, the details as below showed. Please check outwire Inverter is connection If connection is OK,...
  • Page 51 processes are shown below: Password 时间设置 Time Error T-Limit 运行信息 R-Mode MPPT RunInfo RunInfo Para Set Password Inverterinfo Inverterinfo Pump Para Set UP/DOWN ENTE R ENTER Is correct ENTER Pump Info Pump Info Password UP/DOWN Password Password SiteNum Set Statistic Statistic Iaout Clear S-Data...
  • Page 52 Notice: If Solar Pumping System cannot pump water out and inverter display “state 09”, it may caused by air leak of pipe system, or long-time air discharge because of long pipe system. Please take measures according to the following steps: First step: Check whether the pipe system is in good condition or not? If it’s good, please enter into LCD Menu “setting”→”Para Set”...

  • Page 53: Appendix: Troubleshooting

    At this point, congratulations! Your photovoltaic pumping systems first test running is completed! Thank you for using green energy, in order to improve our living environment contribution. 11 Appendix: Troubleshooting 11.1 Troubleshooting for JNP550L-V5~JNP18K5H-V4 Stop condition and troubleshooting Status Code Phenomena...
  • Page 54 Inverter shutdown 1. Short circuit of Please check whether Fault100 and will restart inverter output wires; there have short circuit Driver automatically after 2. Hardware circuit situation between 3 over-current the fault damage phase output wires disappears Please make sure the Inverter shutdown The capacity of load system is proper...

  • Page 55: Troubleshooting For Jnp22Kh-V5~Jnp55Kh-V5

    2. with low solar energy, AC power source cannot complement 1. Check the pump Inverter shutdown 1、Pump motor wiring and the pump for Fault202 and will restart locked-rotor, or normal operation; AC input automatically after damaged. 2. Check if the over-current the fault 2、hardware failure...
  • Page 56 Status Code Phenomena Reason Troubleshooting Please check PV input voltage and make sure Inverter shutdown the voltage is within State 101 and will Output energy from inverter input voltage PV Array automatically PV array is not range. under-voltage restart after it enough Notice: In cloudy days, disappear...
  • Page 57 the fault of inverter. disappears 2. Motor occurs locked-rotor; 3. Pipe system design is not reasonable Fault111 Temp. sensor inside Please contact Temp. sensor Inverter shut down inverter loosen or supplier. fault damage Inverter shutdown, 1. Please check if there non-recover is short circuit in output Fault112...
  • Page 58 Disconnect the grid and PV input Inverter shutdown The grid voltage is switch to ensure that Fault206 and will restart too low, or the the inverter input has automatically after array voltage is too no voltage. Check the low-voltage the fault low or a hardware grid voltage and PV disappears.

  • Page 59: Inverter Unpacking

    Quick Installation Guideline for solar pumping inverter – JNP11KH-V5 JNP15KH-V5 JNP18K5H-V5 12 Inverter Unpacking 12.1 Unpacking Check The product has been tested and checked carefully before transportation, but damage may be caused during transportation, therefore, the product should also be checked carefully before installation. Please check whether inverter outer packing is in good condition;...

  • Page 60: Installation Procedure

    Notice！ Photos are for reference only, please adhere to the original product! Table3-1 Inverter and fittings table Description Status Inverter model Standard Quick installation instruction Standard Certification Standard Expansion Bolt Standard Terminal block Standard Hanging board Standard Terminals Optiona Water level sensor Optiona GPRS_Device Optiona...

  • Page 61: Installation Direction

    Ф3 Straight For the installation of screwdriver communication connecting wires. Ф5 Cross Used for disassembling screwdriver inverter cover. Inner Used for disassembly and hexagon assembly of inverter cover spanner panel. 13.2 Installation Direction The inverter should be installed vertically or titled backwards with a ●...

  • Page 62: Installation Of Inverter

    100cm 100cm 100cm Figure5-2 Minimum spacing of adjacent installations Table5-1 Minimum spacing dimension Direction Minimum spacing Above 100cm Below 100cm Sides 100cm Front 100cm 13.3 Installation of Inverter Notice！ Do not use jackbolts or screws to install inverters on rocks or panels. ·...
  • Page 63 Notice! Fix the inverter on the rock or panel with the toggle bolt or screw is not ● permitted. Supplier would provide the bolt which suitable for the installation on the ● concrete wall. If the inverter is fixed on the wooden wall, please choose suitable bolt to ●...

  • Page 64: Electrical Connection

    FIG. 5-4 The installation of the hanging boardStep 3: Lock the expansion bolt until the expansion bolt is attached to the wall.Put on photovoltaic inverter. FIG. 5-5 Completion effect of installation 14 Electrical Connection The electrical connection can be carried out when the mechanical installation of inverter is completed.

  • Page 65: Connecting Terminals Of Inverter

    Warning！ All the electrical connection must meet local electrical connection ● standard. Only qualified electrical personnel can perform the wiring installation ● work. Incorrect wiring operation may cause operating casualties or equipment ● damage permanently. Ensure that there is no electricity in DC side before the electrical ●...

  • Page 66: Cable Selection

    Table6-1 Description Terminals Description AC IN AC input terminals, including R,S,T,PE. PV array DC input terminals, including PV+,PV-. MOTOR Output terminal, connect with AC pump, including U,V,W. SENSOR Water level sensor signal input terminal (optional) RS485 or GPRS communication interface (optional) Grounding terminal(Grounding screw on the right side of inverter case) 14.2 Cable Selection Please select cable according to the following table.
  • Page 67 Step1: Connect the wires first: Follow the steps below to connect the AC wires: Operation Instruction Operation Demonstration Step1. Fasten the three-phase input, three-phase output and grounding wires to the cold pressing terminal (SC10-6) with crimping pliers seperately. Step2: Fix the AC wire (R, S, T, PE, U, V, W) on the terminal through the corresponding waterproof terminal on the terminal cover.
  • Page 68 Danger！ When the input AC terminal is connected with the inverter, the circuit breaker at the AC input side shall be disconnected, otherwise the AC input will generate dangerous voltage, causing personal injury and death. Do not operate wiring by non professionals. Please make sure the AC input and AC output wiring is correct, Do not connect the input and output reversely, otherwise the inverter will be damaged.

  • Page 69: Dc Side Connection

    14.4 DC Side Connection Danger！ When carrying out connection between PV array and inverter, the PV array should be covered with opaque materials and the DC-SWITCH should be disconnected, otherwise, the PV array may generate dangerous voltage, cause casualty. The Non-professionals do not make the connection operation. Warning！...

  • Page 70: Inverter Grounding

    at the DC side of the system is in the off state. Figure6-4 PV side electrical connection Warning！ Make sure the Positive and Negative poles connection of PV array and Inverter are correct! 14.5 Inverter grounding Ensure reliable connection between inverter grounding terminal and grounding.
  • Page 71 Figure6-5 Water level sensor interface define Table 6-4 Terminal （ SENSOR） pin Detail Dry protection pin Overflow protection pin Dry protection and Overflow protection common pin, Notice！ Above three input signal of water level sensors is passive signals, which is matching opening or closing signal of the corresponding water level sensors.
  • Page 72 A1 connect to DG A2 connect to COM B2 connect to COM B1 connect to SY Note: Both yellow shrub- like hammer, you need filled water, when you install sensor A Figure6-7 The detail figure of Sensor A B1 connect To SY B2 connect to COM To Wa te r le vel sen so r co nn ecto r...

  • Page 73: Communication Connection

    For dry protection, the end with cable of sensor should be upwards connect to SY connect to COM A:the Installation location of overflow water level For over- sensor. flow protection, the end with cable of sensor should be downwards. connect to DG connect to COM 1.
  • Page 74 Figure6-10 Communication connection terminal The com part of the machine panel and the water level sensor use the same terminal block, and the pin definitions are shown in the table below: Table 6-5 COM terminal pin definition on machine panel Detail Terminal（SENSOR）...

  • Page 75: Disassembling

    as an example. If the user choose other converter, need according to the converter‘s instructions, wiring the inverter’s A, B wires to the converter’s correct terminal. Please refer to “Inverter Management System User Manual” for the corresponding monitoring software settings, after completing the wire connection.
  • Page 76 14.8.2 Mounting and dismounting of cover panel For maintenance reason, you may need open the cover of inverter, and ensure better seal performance, please operate according to the following instruction. 1. When open the inverter cover, first use a cross screwdriver to remove the grounding screw on the right side of the inverter case, and then use a 5# Allen wrench to screw down the cover plate fixing screws in turn, and install the gasket under the screw.

This manual is also suitable for:

Jnp750l-v5Jnp1k1l-v5Jnp1k5l-v5Jnp2k2l-se-v5Jnp2k2l-v5Jnp3kl-v5 ... Show all

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