Jntech JNP2K2L-V5 User Manual
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Jntech JNP2K2L-V5 User Manual

Solar pump inverter
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Solar Pump Inverter
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JNP2K2L-V5
JNP3KL-V5
JNP3K7L-V5
JNP4KL-V5
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JNP4KL-V5-CN-V1.2

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Owen issa
April 29, 2025

كيفية حذف نظام الاستشعار الماء الجاف

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1 comments:
Mr. Anderson
May 15, 2025

To delete the dry water sensing system for the Jntech JNP2K2L-V5, you need to remove or disconnect the water level sensors from the SENSOR port inside the inverter. Specifically, disconnect the wires connected to the DG (dry protection pin) and COM (common pin) terminals. This disables the dry protection feature that relies on sensor input.

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Jntech
January 19, 2025

Comon error

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1 comments:
Mr. Anderson
May 14, 2025

Common errors associated with the Jntech JNP2K2L-V5 can be found under sections 8.4 "Malfunction Description" and 9.1 "Troubleshooting" of the manual. These sections typically include issues such as:

- Improper installation or operation causing system faults.
- Damage during transportation not checked before installation.
- Electrical connection errors, such as connecting the inverter to power before installation.
- Exposure of solar cell arrays to sunlight during installation, leading to high voltage generation.

For exact error codes and resolutions, refer to the troubleshooting section.

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Summary of Contents for Jntech JNP2K2L-V5

  • Page 1 Solar Pump Inverter User Manual JNP2K2L-V5 JNP3KL-V5 JNP3K7L-V5 JNP4KL-V5 JNP4KL-V5-CN-V1.2...
  • Page 2 The copyright belong to Supplier This document involves the proprietary and confidential information about Solar Pump Inverter of Supplier It strictly prohibited to disclose the document by duplicating, photocopying, publishing online and in other forms without Supplier’s permission. Supplier reserves the right to change details in this publication without notice.

  • Page 3: Preface

    Preface Manual Instruction This manual describes the transportation, installation, operation, maintenance and troubleshooting of the following JNP inverters: JNP2K2L-V5 ● JNP3KL-V5 ● JNP3K7L-V5 ● JNP4KL-V5 ● For the convenience of the following description, “JNP2K2L 、 JNP3KL 、 JNP3K7Land JNP4K“ is short for JNPxL .“Solar Pump Inverter” is short for inverter in the following content.
  • Page 4 are shown in below. Safety Symbol Meaning Means that it may lead to serious accident of injuries, if safety warning is ignored. Danger! Means that it may lead to serious accident of injuries, equipment serious damage or main business Warning! interruption, if safety warning is ignored.
  • Page 5 Inverter related symbols: Symbol Meaning Direct current (DC). Alternating current (AC). Protective grounding . Refer to relevant instructions. Can not discard inverter together with domestic garbage . Beware of dangerous high-voltage. Should wait for 5 minutes after inverter and PV panel are disconnected, then inverter only can be touched.

  • Page 6: Table Of Contents

    CONTENT PREFACE........................... III .....................III ANUAL NSTRUCTION ....................... III ARGET EADER ......................III SE THE ANUAL ........................III YMBOL 1 SAFETY INSTRUCTIONS....................9 2 PRODUCTION INTRODUCTION................. 14 ..............14 2.1 S OLAR NVERTER NTRODUCTION ..................17 2.2 P ’ RODUCT NTRODUCTION 2.2.1 Appearance....................17 2.2.2 Production Dimensions ................18 2.2.3 Product Name....................
  • Page 7 ..................26 5.2 I NSTALLATION IRECTION ..................27 5.3 I NSTALLATION OF NVERTER 6 ELECTRICAL CONNECTION..................30 ..............30 6.1 C ONNECTING ERMINALS OF NVERTER ..........31 6.2 S CHEMATIC IAGRAM OF LECTRICAL ONNECTION ..................... 33 6.3 C ABLE ELECTION ................33 6.4 AC S LECTRICAL ONNECTION 6.4.1 Single phase pump description ..............
  • Page 8 .................... 55 8.1 I LCD D NVERTER ISPLAY 8.1.1 LED Indicator Direction ................55 8.1.2 Description of Buttons.................56 8.1.3 LCD Display Interface Overview..............57 ................58 8.2 I NITIAL PERATIONAL NTERFACE ..............60 8.3 S YSTEM PARAMETER QUERY AND SETTING 8.3.1 Query information item description............60 8.3.1.2 Basic Information ..................

  • Page 9: Safety Instructions

    1 Safety Instructions For the electrical and electronics equipment, safety relates to the whole process of installation, commissioning, operation and maintenance. Therefore, incorrect use or operation would damage the life and personal security of operating person or the third party, and inverters. In order to reduce casualties, damage of inverter and other equipment, user or operating person should strictly abide by all the safety information tips of danger, warning and notice which are in the process of operating and maintaining.
  • Page 10 Danger！ The solar cell arrays should be covered with opaque materials when installing the PV arrays during the day, otherwise the solar cell arrays will generate high voltage, causing person casualties. Electrical connections Danger！ Ensure that the solar cell array should be covered by light tight materials, before electrical connecting, otherwise, the solar cell array would produce high voltage under the sun to cause casualties.
  • Page 11 Warning！ If inverter damage caused by the following circumstances will be beyond the warranty scope. Ensure DC max. short-circuit current being in inverter allowable range when ● configure PV arrays, otherwise, may cause non-recoverable damage. When the photovoltaic array is configured, it is necessary to ensure that the ●...
  • Page 12 Notice！ All electrical installation must comply with local and national electrical installation ● standards In order to ensure safe running, proper grounding, using appropriate conductor size ● and providing short circuit protection are required. Connection cable must select suitable specification, firm connection and good ●...
  • Page 13 Maintenance Danger！ Maintenance should be done by professional maintenance technical person. ● Before maintenance, make sure to disconnect the electrical connection on the input ● side of inverter, wait at least 5 minutes, Measure DC side and AC side voltage of inverter with voltage meter, Make sure to operate without voltage on both DC and AC sides...

  • Page 14: Production Introduction

    2 Production Introduction 2.1 Solar Pump Inverter Introduction Solar pump system is different from traditional AC pumping system, which takes use of solar cells to convert solar energy into electricity. It consists of 4 parts: PV modules, Solar Pump Inverter, AC pump and water storage device.
  • Page 15 PV array Monocrystalline silicon, Polycrystalline silicon. Grid/Diesel Single phase AC source.(see the appendix of generator each model for specific requirements) JNP2K2L-V5,JNP3KL-V5,JNP3K7L-V5, Solar pump inverter JNP4KL-V5. AC pump Single phase or three phase AC pump. Water storage Can be the reservoir, fields etc.
  • Page 16 ensure that the maximum power point voltage VMP of the photovoltaic array is basically equal to or close to the AC rectifier voltage. That is, VMP ≈1.414*U line, the input voltage of JNPXL series grid is single-phase input inverter U line is single-phase AC voltage, for example, for JNPXL series single panel 30VMP, 11 in series, VMP =30*11=330V≈1.414*220=311.08V.

  • Page 17: Product S Introduction

    2.2 Product’s Introduction 2.2.1 Appearance Figure2-2 Appearance of Solar Pump Inverter Table2-2 Inverter appearance information table Name Introductions LCD display Man-machine interface, you can check the inverter screen operating information through LCD display screen, also can set some function and parameters of inverter.

  • Page 18: Production Dimensions

    connection terminal (SERSOR) and communication terminal(COM) under the cover. Machine serial The serial number of the inverter, should be provided during after-sales service Nameplate The basic parameters of the inverter are listed on the name plate Hanger Used to hang the inverter on the bracket. Radiator Help the machine to dissipate heat.

  • Page 19: Product Name

    Table2-3 Inverter dimension table Net weight（ kg） Model Width(mm) Height(mm) Depth(mm) JNP2K2L-V5 JNP3KL-V5 JNP3K7L-V5 JNP4KL-V5 2.2.3 Product Name The Naming of product, take JNP3K7H-V5 for example: 3K7H H： 380V Company name L： 220V Product series name Power level...

  • Page 20: Inverter Unpacking

    3 Inverter Unpacking 3.1 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 21: Identify Inverter

    Note！ Photos are for reference only, please adhere to the original product! Table3-1 Inverter and fittings table Description Status Solar Pump Inverter Standard Signal terminal block Standard Cold-pressed terminal(SC4-5) Standard Cold-pressed terminal(SC6-5) Standard Expansion bolt(M6*60) Standard Water level sensor B Optional Quick Installation Guideline Standard...
  • Page 22 Figure3-2 Inverter nameplate Table3-2 Nameplate information table Description Inverter name and model Inverter parameter information Certificate and safety signs, concrete meaning as “Preface” Inverter factory number...

  • Page 23: Installation Procedure

    4 Installation Procedure 4.1 Prepare Installation Tools The following tools will be needed during inverter installation and wire connection. You also can choose the right tools according to your own experience. Table4-1 Installation tools list Recommend Sketch map Name Function specification Wire crimpers M2.5~M8...

  • Page 24: Installation Steps

    4.2 Installation Steps Tools ready, follow these steps to install. Table4-2 Installation process Installation Reference Installation instruction steps chapters Before installation, check whether the inverter is in good condition; Whether the product fittings are complete Whether the installation tools and spare parts are complete Whether the installation environment meets the requirements...

  • Page 25: Installation

    5 Installation 5.1 Installation Site Required Inverter installation site environment has very important influence to the safe operation, the performance and life of the inverter. Choose the right installation site before install the inverter. All installation must comply with local standards. ●...

  • Page 26: Installation Direction

    maintenance. Don't install the inverter in living area, the inverter will produce some noise ● when running, influence daily life. 5.2 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

    Figure5-2 Minimum spacing of adjacent installations Table5-1 Minimum spacing dimension Direction Minimum spacing Above 100cm Below 100cm Sides 100cm Front 100cm 5.3 Installation of Inverter Note！ Do not use jackbolts or screws to install inverters on rocks or panels.
  • Page 28 Note! 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 29 Step2: Fasten the inverter lug through expansion bolt positioned holes. Step3: Lock the expansion bolt until it is close to the wall.

  • Page 30: Electrical Connection

    6 Electrical Connection 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！ All the electrical connection must meet local electrical connection standard. ●...

  • Page 31: Schematic Diagram Of Electrical Connection

    Figure6-1 External connection terminals of inverter 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 (optiona l) Grounding terminal(Grounding screw on the right side of inverter case) 6.2 Schematic Diagram of Electrical Connection...
  • Page 32 Solar Pump Inverter and three phase AC pump. Water level sensor and communication interface shall be connected if needed. Figure6-2 Electrical connection diagram of Solar Pump Inverter Table6-2 Equipment list of Solar pump system Equipment name Description PV array The max. Voc of each string is 880V. Grid Power grid, diesel engine and other single AC input source.

  • Page 33: Cable Selection

    Cable range（ AWG） Cable recommended Inverter （ AWG） DC side AC side DC side AC side PV+、 PV- U、 V、 W PV+、 PV- U、 V、 W JNP2K2L-V5 14-12 14-12 JNP3KL-V5 12-10 12-10 JNP3K7L-V5 12-10 12-10 JNP4KL-V5 12-10 12-10 6.4 AC Side Electrical Connection Notice！...

  • Page 34: Single Phase Pump Description

    6.4.1 Single phase pump description Single phase pump is widely used in household and small power water delivery system with its advantages of simple structure, low cost, low noise, easy access to power, etc. Usually, single phase pump consists of a main winding (running winding), a secondary winding (starting winding), and a starting capacitor.
  • Page 35 Figure 6-4 Schematic diagram of removal for single phase pump...

  • Page 36: Capacitor Removal Example

    6.4.2 Capacitor removal example Step 2: Remove 4 fixing screws Step 1: Put the single pump from end cover plate with cross on the open and hard ground. screwdriver remove cover plate. Step 4: Prepare a four-core motor Step 3: After remove end cover, extension wire, fix the ground wire in find the terminal connected to the “...

  • Page 37: Wire Connection Of The Connector

    6.4.3 Wire connection of the connector Step1: Connect the wires first: Follow the steps below to connect the AC wires: Operation Instruction Operation Demonstration Step1. Fasten three-phase output and grounding wires to the cold pressing terminal (SC4-5) with crimping pliers seperately.
  • Page 38 Step3: Connect the cables between pumping inverter and AC pump. 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.

  • Page 39: Dc Side Connection

    Caution！ JN2K2L-V5, JN3KL-V5, JN3K7L-V5, JN4KL-V5,AC input is single phase 220-240V, 50/60Hz. AC input voltage frequency is： 50Hz/60Hz。 6.5 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 40 Step1: Please connect the wire of DC according to the following steps: Operation Instruction Operation Demonstration 1. Fasten the DC conductor to the cold pressed terminal (SC6-5) with a press pliers. 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 41: Water Level Sensor Connection

    Warning！ Make sure the Positive and Negative poles connection of PV array and Inverter are correct! 6.6 Water Level Sensor Connection Dry protection function: There are two kinds of detection models, automatic and manual. Automatic dry protection is achieved through inverter ’s software. And manual model need water level sensors to input signal through SENSOR inside Inverter.

  • Page 42: Water Level Sensor Interface Define

    6.6.1 Water level sensor interface define Water level sensor connector pins in inverter panel port are defined as below: Figure6-5 Water level sensor interface define Table 6-4 Detail Terminal（ SENSOR）pin Dry protection pin Overflow protection pin Dry protection and Overflow protection common pin,...

  • Page 43: Water Level Sensor Connection

    Note！ Above three input signal of water level sensors is passive signals, which is matching opening or closing signal of the corresponding water level sensors. 6.6.2 Water level sensor connection Two kinds of water level sensor you can select as shown below: Sensor Sensor Figure6-6 Water level sensor...
  • Page 44 Figure6-7 The detail figure of Sensor A Figure6-8 The installation figure of Sensor A If you selected water level sensor B, then water sensor installation method is shown below:...

  • Page 45: Communication Connection

    Figure6-9 The installation figure of Sensor B Notice！ If you choose Water Level Sensor B, please note 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. 6.7 Communication Connection 6.7.1 RS485 Communication When the inverter communicates with a single machine, the communication...
  • Page 46 communication terminal, and the output terminal wire is connected to the 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:...
  • Page 47 Table 6-5 COM terminal pin definition on machine panel Detail Terminal（ SENSOR） pin +5V power supply RS485 communication port A. RS485 communication port B. Electrical grounding The following diagram guide you to connect a single inverter to monitoring equipment. Figure6-11 Diagram of single communication wiring The wiring diagram is schematic diagram, just take HEXIN converting module as an example.

  • Page 48: Gprs Communication

    Note！ The monitoring software is optional, when choose this function, “Inverter  Management System User Manual” can be found from the accompanying CD. The inverter is supplied with default address "10".  6.7.2 GPRS Communication Note：More information about the communication module, please refer to the User and Installation Manual For GPRS.
  • Page 49 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.

  • Page 50: Commissioning

    7 Commissioning 7.1 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, otherwise, the damage may be caused to the inverter. Make sure that the open-circuit voltage of PV array doesn’t exceed the required voltage.
  • Page 51 Ensure that the inverter is connected correctly to the AC motor. ● Ensure that the polarity of PV arrays is correct. ● Ensure that the AC Input R、T and GND is correct. ● Check whether the system pipeline is unobstructed or not. ●...
  • Page 52 running at full power, the grid exits. When the debugging mode "2" is selected, it means that the inverter is in the pure photovoltaic mode, and the power grid cannot be connected, and only photovoltaic energy is used for operation. When the debugging mode is "4", the inverter is in the motor detection mode, which needs to be modified only for single-phase pump load.

  • Page 53: Stop Frequency Setting

    panel of the inverter to stop the inverter and turn OFF the "RUN" light. Disconnect the DC input of the PHOTOVOLTAIC array, connect the AC input, and repeat the above operation. Note！ Output power of inverter drives the pump working; the pump will stop ●...
  • Page 54 Finish the debugging. Note！ The set of “StopFreq” can ensure inverter stop working when the output power of PV array is too weak to pump water, which can increase the pump’s lifespan.

  • Page 55: Lcd Panel Operating Instructions

    8 LCD Panel Operating Instructions 8.1 Inverter LCD Display There are three LED lights, four buttons on the LCD Display, shown in figure 8-1. Figure8-1 LCD Display 8.1.1 LED Indicator Direction Table8-1 LED Indicator Direction Name Color Instructions Indicator POWER Power light Green Light on When power on...

  • Page 56: Description Of Buttons

    until fault or status are cleared. When invert is running normally, “RUN” indicator will be lighted in green. ● 8.1.2 Description of Buttons Table8-2 Buttons Function Table Buttons Name Functions Press once to stop; long time press for “ON/OFF” 3s to get it started. Page up and increase data.

  • Page 57: Lcd Display Interface Overview

    8.1.3 LCD Display Interface Overview Figure8-2 LCD diagram（ 1）...

  • Page 58: Initial Operational Interface

    Figure8-3 LCD diagram（ 2） 8.2 Initial Operational Interface Once the inverter power on, the system start to initialize, display the initialization interface:...
  • Page 59 Figure8-4 System initialize If the start-stop mode is auto., countdown interface will be display after initialization complete, and when countdown finished, LCD will enter the main interface, inverter will drive water pump. “RUN” indicator light. Figure8-5 Countdown interface If the start-stop mode of the system is manual (factory default setting), long press the "ON/OFF"...

  • Page 60: System Parameter Query And Setting

    Figure8-6 Main interface Main interface display basic running information. Main interface will turn page auto after 10s, or you can turn page through pressing "UP" and "DOWN" button. Noted! JNPxL series inverter with single-phase water pump load is powered on for the first time, the motor parameters will be detected.
  • Page 61 information, statistical information, and fault information. 8.3.1.1 operation information The items in the operation information show the current operation information of the inverter. The following table explains each item in detail. Figure8-3 The meaning of main interface parameters RunInfo Introduction Inverter input voltage (V).

  • Page 62: Basic Information

    8.3.1.2 Basic Information InverterInfo, shows basic information of inverter, please refer to the figure below. Figure 8-4 Basic Information Details Inverter Info Explain LCD-Ver Version information of LCD program. DSP-Ver Version information of DSP program. Site number of network node of inverter, when communicate SiteNum with RS485.

  • Page 63: Statistic Information

    Pump daily water output on Vday that day (m3) Pump total water output Vtol (m3) Return to the previous menu 8.3.1.4 Statistic Information Statistic Information, statistic of the totally running time and power generation of inverter. Please refer to figure below Table 8-6 Detailed statistic data Statistic Description...
  • Page 64 Setting information items are all under the parameter setting menu, including setting of scheduled down time, DSP parameter setting, water pump information, site number setting, zero clearing point information, zero clearing fault information, password setting and language setting. "Figure 8-2 LCD Menu Block Diagram 1" and "Figure 8-3 LCD menu block Diagram 2"...
  • Page 65 Parameter Description Setting Information Motor overload current protection value, refer to the water pump motor nameplate to set this parameter, it is Imotor recommended to be the same as 1.2 times the motor rated current value. Motor rated current (this parameter is only valid for single-phase pump motor parameter detection, and the Im-Rate setting value is recommended to be 60% of nominal rated...
  • Page 66 For choose the dry out protection mode. When water D-mode sensor is applied, dry protection mode should be set to detect dry protection. Default is “DETECT”. For choose over flow warning function. Default is no OF-F overflow warning. If you want to use this function, please set to “on”.
  • Page 67 needed again). When economic mode selected, when the operating frequency is lower than the access frequency, Facc the power grid is connected to ensure the maximum power operation of the inverter. (This parameter setting value must be greater than stop frequency) When the economic mode is selected, the photovoltaic power is higher than the exit power, and the grid exit ensures that the inverter only uses photovoltaic energy.
  • Page 68 Rated output voltage, adjustable range of 130V~240V. U-Rated With the load set to UX/50Hz or UX/60Hz, UX is the rated voltage. Return to the previous menu. Note！ When the user selects solar pump inverter, the parameters in the menu of "DSP Parameter Setting"...
  • Page 69 Pump Information Note Description Setting According to H_rate Set pump rated lift head (m) pump nameplate input Settings Set pump rated water flow Q_rate (m3/h) Set pump rated speed ( r/m) n_rate 8.3.2.4 Site Number Set SiteNum Set, for remote RS485 communication use. Please refer to the figure below.
  • Page 70 Table 8-12 Statistical Data Clear Description Clear generation Note Description info. Choose yes,clear the information of the inverter output power Return to the previous menu. 8.3.2.6. Historical Malfunction Clear Clear F-Data, to clear historical malfunction record. Table 8-13 Historical malfunction clear information description Historical Note Description...
  • Page 71 Description Note Password set The default initial value for a two-digit password is 00, and Set the password to enter the the maximum value can be set Password Settings menu. to 99. 8.3.2.8. Language Setting Language setting, to set the man-machine interface language category. Table 8-15 Language set descri Language Description...
  • Page 72 8.3.3 Information inquiry In the main interface, press the up and down keys to directly query the information displayed in the main interface, and press the "ENTER" key to ENTER the main menu, to query the detailed parameters of the inverter, and to set some parameters and functions.

  • Page 73: Parameter Setting

    move the cursor and find the fault code. Note！ All query information items can be inquired according to the above operation, and the fault information in the operation information is only illustrated here. Please refer to "8.3.1 Description of Inquiry Information Item" for introduction of inquiry information item.
  • Page 74 Keys operation and LCD display Description 1. Press on the main interface to enter the main menu, and the cursor falls on the operation information item; 2. Press the up key or down key to find the parameter setting item; 3.
  • Page 75 1. Enter the correct password to enter the setting menu, and the cursor falls on the timed downtime item; 2. Press to select the setting item of D-power; 3. After entering the D-power setting, set the D-power according to the confirmation; 4.

  • Page 76: Malfunction Description

    return to the main menu. Note！ All information items given in "8.3.3 Setting Information Item Description" can be set according to the above operation, which is explained here only by taking the setting of D-power as an example. 8.4 Malfunction Description If communication failure appears, the below interface will appear.
  • Page 77 Note！ Malfunction manual reset function: when machine breakdown with malfunction, can long press "ON/OFF" button, the machine can automatically restart immediately. When the machine is displayed Fault112, no such reset function. The following table shows the possible fault codes and status names of the inverter.
  • Page 78 Fault 113 Initialization error from the machine State 114 Overflow alarm Fault 115 Output phase lose Fault 202 Grid power over current Fault 203 Bus voltage under voltage Fault 204 Grid phase lose...

  • Page 79: Malfunction And Troubleshooting

    9 Malfunction and Troubleshooting 9.1 Troubleshooting Once malfunction or stop condition appears, the malfunction LED will lighten up, LCD will display current malfunction or stop condition, current malfunction will be recorded by the system for later inquire. Please refer to the form below which covers the fault and troubleshooting.
  • Page 80 will restart than inlet level sensor. automatically. of pump. Inverter Usually appears in shutdown. early morning, dusk When cloudy days. Weak malfunction Array This situation is aim State 110 sunshine disappear, output low. to protect the motor inverter pump restart lengthen the lifetime.
  • Page 81 Conditio Condition Phenomena Cause value Troubleshootin n code Name 1. Please make sure system proper designed. The power of pump motor should not be larger than inverter output. Inverter 2. Make sure Load higher shutdown and that the pump Output than rated will...
  • Page 82 value Imotor. Please check maximum Inverter input output voltage shutdown and voltage array Array will restart higher than make sure this Fault106 over-voltage automatically maximum voltage after input voltage below inverter malfunction of inverter. maximum input disappears. voltage. Input current If this happen, Inverter inverter...
  • Page 83 damaged. accordance Pipe with water system pump or not. design is not this reasonable. happen frequently, please contact SUPPLIER. Sensor If this happen connects frequently, Temperature Inverter shut Fault111 proper please contact sensor fault down. damaged. SUPPLIER. 1.The Please inverter check if there output is short circuit...
  • Page 84 Inverter hardware circuit damage. Please check output wires Inverter proper Output phase shutdown and Phase loss connected and lose will restart inverter fixed. Fault115 automatically output. this after the fault happen disappears. frequently, please contact the supplier. 1,check pump Inverter stop wiring, and chek working, stop 1,Pump is short...

  • Page 85: Maintenance

    Disconnect with AC input, the inverter input, shut down, Grid power ensure inverter the system undervoltage no voltage, use can start itself Bus voltage , or PV array multimeter Fault 203 after the undervoltage low voltage, check shutdown or hardware voltage of grid state fault.

  • Page 86: Contact Customer Service

    A routine examination must be done every half year: Check the inverter for damaged or with deformation. ● Check whether there is abnormal noise when inverter is running. ● Check whether the parameters and time settings are correct. ● Every half to one year, a routine examination should be done: Warning！...
  • Page 87 10 Appendix A Technical Data Model JNP2K2L-V5 JNP3KL-V5 JNP3K7L-V5 JNP4KL-V5 PV input parameter Maximum DC 480Vdc input voltage Recommended MPPT voltage 200~450Vdc range Maximum DC input current MPPTmaximu m efficiency Number of input lines Utility/diesel input parameters 198-264Vac,1PH frequency 50Hz/60Hz(±3%)
  • Page 88 frequency range maximum current output system IP Grade IP65 Operating ambient -25~60℃ temperature range type of cooling natural cooling display LCD/LED communication RS485/GPRS altitude 3000m, downscaling operation above 3000m noise <50dB meet a EN 50178; IEC/EN 62109-1;IEC61000 criterion Specification 278/370/125(mm) size (W/H/D) weight 6.5kg...

  • Page 89: Quality Assurance

    11 Appendix B 11.1 Quality Assurance The product malfunction in the warranty period, Supplier be free to repair or replace products. The warranty period take the contract as a standard. Evidence During the warranty period, customers should provide the invoices for the purchase of products and date.

  • Page 90: Contact Us

    If the product size and parameters have changed, the latest information given by the company shall prevail without notice. 11.2 Contact Us If you have any question about Solar Pump Inverter, please contact Supplier.

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