Jntech JNP22KH-V5 User manual

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User Manaul
Solar Pumping Inverter
JNP22KH-V5
JNP30KH-V5
JNP37KH-V5
JNP45KH-V5
JNP55KH-V5
JNP55KH-V5-EN-V1.1

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The copyright belong to Supplier.
This document involves the proprietary and confidential information about Solar
pumping inverter of Supplier. It strictly prohibited to disclose the document by duplicating,
photocopying, publishing online and in other forms without the company’s permission.
Supplier. reserves the right to change details in this publication without notice.

III
Preface
Manual Instruction
This manual describes the transportation, installation, operation, maintenance
and troubleshooting of the following JNP inverters:
●JNP22KH-V5
●JNP30KH-V5
●JNP37KH-V5
●JNP45KH-V5
●JNP55KH-V5
In order to describe conveniently later, JNP22KH-V5, JNP30KH-V5,
JNP37KH-V5, JNP45KH-V5,JNP55KH-V5 will be short for JNPxH, solar
pumping inverter will be short for inverter. The inverter type shall be pointed
alone, when introduce the information about each type of inverter in details.
Target Reader
This manual applies to the professional engineering and technical person who
is responsible for installing and operating of inverter and LCD panel.
Use the Manual
Please read this manual carefully before installing and operating inverter.
Please keep this manual well for operation and maintenance in future.
The manual content would be constantly updated and revised, but it
unavoidably has slightly discrepancies or errors with real inverter, please kind
prevail if user purchases our inverter.
Symbol Used
The following safety symbols may be used in this manual, and the meanings
are shown in below.

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Safety
Symbol
Meaning
Danger!
Means that it may lead to serious accident of injuries, if
safety warning is ignored.
Warning!
Means that it may lead to serious accident of injuries,
equipment serious damage or main business interruption, if
safety warning is ignored.
Notice!
Means that it may lead to moderate accident of injuries,
equipment moderate damage or part of the business
interruption, if safety warning is ignored.
Note!
Means that the content is additional information.
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.

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Should wait for 5 minutes after inverter and PV panel are disconnected, then
inverter only can be touched.
Beware of hot surface
The inverter temperature can exceed 60℃during operation. Please don’t
touch the surface to avoid scald.
CE certification marks. It means that inverter complies with the
requirement of CE certification.

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CONTENT
PREFACE........................................................................................................................... III
MANUAL INSTRUCTION.....................................................................................................III
TARGET READER ............................................................................................................... III
USE THE MANUAL............................................................................................................III
SYMBOL USED..................................................................................................................III
1 SAFETY IN STRUCTIONS ................................................................................................9
2 PRODUCT PRESENTATION............................................................................... 14
2.1 INTRODUCTION TO PV PUMP INVERTER.......................................................... 14
2.2 PRODUCT INTRODUCTION................................................................................. 17
2.2.1 Product appearance................................................................................ 17
2.2.2 Production Dimensions...........................................................................18
2.2.3 Product Name............................................................................................... 19
3 INVERTER UNPACKING .............................................................................................. 20
3.1 UNPACKING CHECK................................................................................................... 20
3.2 IDENTIFY INVERTER ...................................................................................................21
4 INSTALLATION PROCEDURE ......................................................................................24
4.1 PREPARE INSTALLATION TOOLS.................................................................................. 24
4.2 INSTALLATION STEPS................................................................................................. 25
5 INSTALLATION ............................................................................................................. 26
5.1 INSTALLATION SITE REQUIRED................................................................................... 26

VII
5.2 INSTALLATION DIRECTION..........................................................................................27
5.3 INSTALLATION OF INVERTER...................................................................................... 28
6 ELEC TRICAL CONNECTION........................................................................................ 31
6.1 CONNECTING TERMINALS OF INVERTER.....................................................................32
6.2 SCHEMATIC DIAGRAM OF ELECTRICAL CONNECTION .................................................. 33
6.3 CABLE SELECTION..................................................................................................... 34
6.4 AC SIDE ELECTRICAL CONNECTION........................................................................... 34
6.5 DC SIDE CONNECTION..............................................................................................38
6.6 WATER LEVEL SENSOR CONNECTION......................................................................... 40
6.6.1 Water level sensor interface define.......................................................... 41
6.6.2 Water level sensor connection...................................................................42
6.7 COMMUNICATION CONNECTION................................................................................44
6.7.1 RS485 Communication.................................................................................44
6.7.2 GPRS Communication.................................................................................. 47
6.8 DISASSEMBLING ........................................................................................................47
6.8.1Safety Instruction.......................................................................................... 47
6.8.2 Mounting and dismounting of cover panel............................................. 48
7 COMMISSIONING....................................................................................................... 49
7.1 VERIFY BEFORE COMMISSIONING.............................................................................. 49
7.2 INVERTER COMMISSIONING...................................................................................... 49
7.3 MODIFY MOTOR PARAMETERS................................................................................... 51
7.4 MOTOR PARAMETERS’DETECTION AND COMMISSIONING...........................................52
7.4.1 Motor parameters’ detection.....................................................................52
7.4.2 Commission................................................................................................... 53
7.5 INVERTER OPERATION MODE SWITCH....................................................................... 56
7.6 OVERLOAD CURRENT SETTING................................................................................... 56

VIII
7.7 STOP FREQUENCY SETTING ....................................................................................... 56
7.8 TIME CALIBRATION................................................................................................... 57
8 LCD PANEL OPERATING INSTRUCTIONS................................................................. 58
8.1 INVERTER LCD DISPLAY............................................................................................ 58
8.1.1 LED Indicator Direction............................................................................... 58
8.1.2 Description of Buttons.................................................................................59
8.1.3 LCD Display Interface Overview.................................................................60
8.2 INITIAL OPERATIONAL INTERFACE .............................................................................. 62
8.3 SYSTEM PARAMETER QUERY AND SETTING................................................................. 63
8.3.1 Query information item description.........................................................63
8.3.3 Information inquiry.........................................................................................77
8.3.4 Parameter Setting........................................................................................ 79
8.4 Malfunction Description................................................................................. 82
9 MALFUNCTION AND TROUBLESHOOTING................................................85
9.1 TROUBLESHOOTING............................................................................................85
9.2 MAINTENANCE......................................................................................................... 92
9.3 CONTACT CUSTOMER SERVICE...................................................................................93
10 APPENDIX A.............................................................................................................. 94
11 APPENDIX B...............................................................................................................97

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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 equipments, user or
operating person should strictly abide by all the safety information tips of danger,
warning and note which are in the process of operating and maintaining.
Warning！
All the installation and operation of Solar pumping inverter must be completed by
professional and technical person. Professional and technical person need:
●Receive special training
●Read this manual completely and master the operation related to safety matters.
Any damage caused by improper installation or operation which do not
according to the introduction in this manual will be beyond the warranty scope of
our company.
Before installation
Notice！
User should check the inverter if there is any damage during transportation. Please
contact Supplier or transportation company immediately if some problems of inverter
are found.

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Installing
Ensure inverter not have electrical connections and electricity before installing.
Danger！
The solar cell arrays should be covered with opaque materials when installing the
photovoltaic arrays during the day, otherwise the solar cell arrays will generate high
voltage, causing person casualties.
Danger！
When the input AC end is connected to the inverter, the ac input side circuit breaker
should be disconnected, otherwise the AC input will produce dangerous voltage,
causing personal casualties.Do not conduct wiring operations by non-professionals.
Warning！
Good ventilation should be ensured when the inverter is running.
The inverter should be installed vertically, and no shielding should be guaranteed for
the heat sink.
Warning！
Inverter damage caused by the following circumstances will not be covered by the
company's warranty.
When photovoltaic array configuration, ensure that the dc side of the maximum
short-circuit current in the allowed range of the inverter, otherwise it may cause

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non-recoverable damage to the inverter.
When photovoltaic array configuration, make sure that the open-circuit voltage of
each photovoltaic group does not exceed the maximum DC input voltage of the
inverter. For the maximum DC input voltage of JNPxL and JNPxH series pv pump
inverters, please refer to the technical parameters of each type of inverters in the
appendix.
Warning！
Improper installation environment of inverter will affect machine performance and may
cause machine damage.
Do not install the inverter in flammable, explosive or flammable, explosive storage
places.
Do not install the inverter in an area where it may be struck by lightning.
Do not install inverters in places with more salt fog.
Electrical connection
Danger！
When installing photovoltaic arrays during the day, apply light-tight materials to cover
the solar array. Otherwise, the solar array will generate high voltage and cause
human casualties when exposed to sunlight.
Warning！
Do not close any circuit breaker until all equipment is fully connected.

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Notice！
All electrical installations must comply with local and national electrical installation
standards.
Notice！
To ensure safe operation, correct grounding, proper conductor size, and necessary
protection against short circuits are required.
Notice！
The connecting cable must be of proper specification, firmly connected and well
insulated.
In the operation of the
Danger！
When the inverter is loaded on the AC side, it is not allowed to disconnect the DC
connection directly. First, make sure that the inverter is shut down and there is no
output in the AC output, and make sure that there is no voltage between the AC input
side and the DC input side, then disconnect the connection between the AC and DC
input side.

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Danger！
Do not plug or unplug any connector when the inverter is in live state.
Do not open the cover of the machine when the inverter is live!
Notice！
During the operation of the inverter, only the LCD display screen can be touched, and
the heating elements of the machine (such as the radiator) cannot be touched to
prevent burns.
Maintain
Danger！
Maintenance work should be carried out by professional maintenance technicians.
Before inspection or maintenance, be sure to disconnect the electrical connection on
the input side of the machine. After waiting for at least 10 minutes, measure the
voltage on the DC side and ac side of the inverter with a voltage meter to ensure that
the operation is carried out without voltage on both the DC side and AC side.

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2 product presentation
2.1 Introduction to pv pump inverter
Photovoltaic pump system is different from the traditional ac pump application
system, the photovoltaic pump system is the use of solar cells convert solar
energy into electrical energy directly, and then driven by photovoltaic pump
inverter ac motor drives the pump, such as jiang river lake from a deep well
water source water, and then transported to the destination, to meet the needs
of the (user) on the water of the system is mainly composed of four parts: the
photovoltaic array photovoltaic pump inverter single-phase or three-phase ac
pumps, as well as the pipeline and photovoltaic array absorbs sunlight
radiation energy storage device, is transformed into electrical energy, for the
whole power system power supply
Photovoltaic pump inverter as an important part of photovoltaic pump system, it
will be a photovoltaic array output direct current into alternating current (ac)
drive pumps, according to the changes of the intensity of sunlight in real time to
adjust the output voltage and frequency, to achieve maximum power point
tracking, maximize the use of solar energy JNPxH series inverter on the basis
of traditional photovoltaic pump inverter, strengthen the function of ac input
complement, in the case of photovoltaic energy shortage, ac input energy can
according to demand to supplement, in order to ensure the normal supply of
users in the night or cloudy days
Warning！
The inverter cannot be connected to a photovoltaic group with a positive or
negative grounding.

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Figure 2-1 Photovoltaic pump inverter application system
Table 2-1 Application system list of pv pump inverter
No.
Name
Description
A
PV array
Monocrystalline silicon, Polycrystalline
silicon.
B
Grid/Diesel
generator
Single phase or three phase AC source.(see
the appendix of each model for specific
requirements)
C
Solar pump
inverter
JNP22KH、JNP30KH、JNP37KH、JNP45KH、
JNP55KH
D
AC pump
Three-phase AC pump
E
Water storage
device
Can be the reservoir, fields etc.
Explain!
Photovoltaic pump system configuration need to ensure that the maximum
power point of pv array voltage Vmp with ac rectifier voltage Vmp 1.414 * U

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line basic equal or close to it, and input the JNPxL series grid voltage of
single phase inverter input U is the single-phase ac line voltage, input the
JNPxH series grid voltage of three-phase inverter U line voltage between
any two lines, for example, to 30 Vmp JNPxH series single block panels, 18
series, Vmp 18 = = 30 * 1.414 * 380 = 540 V to 537.3 VIf the
PHOTOVOLTAIC array configuration is not appropriate, when the
photovoltaic energy and AC energy are simultaneously connected, the
photovoltaic energy utilization rate may be poor

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2.2 Product Introduction
2.2.1 Product appearance
igure2-2 Photovoltaic pump inverter appearance diagram
Table2-2 Inverter appearance information table
No.
Name
Introductions
1
LCD display
screen
Man-machine interface, you can check the inverter
operating information through LCD display screen,
also can set some function and parameters of
inverter.
2
Terminals Cover
Including DC input terminal (PV+ 、PV-);AC input

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terminal(AC IN); output terminal (MOTOR); sensor
connection terminal (SERSOR) and communication
terminal(COM) under the cover.
3
Machine serial
No.
The serial number of the inverter, should be
provided during after-sales service
4
Nameplate
The basic parameters of the inverter are listed on
the name plate
5
Hanger
Used to hang the inverter on the bracket.
6
Radiator
Help the machine to dissipate heat. The
temperature of the inverter is high during operation.
DO NOT touch it!
2.2.2 Production Dimensions
Figure2-3 Dimension drawing of Solar Pump Inverter (unit : mm)

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Table2-3 Inverter dimension table
Model
Width(mm)
Height(mm)
Depth(mm)
Net weight（kg）
JNP22KH-V5
460
715
125
44
JNP30KH-V5
460
715
125
44
JNP37KH-V5
460
715
125
44
JNP45KH-V5
460
715
125
44
JNP55KH-V5
460
715
125
44
2.2.3 Product Name
The Naming of product, take JNP3K7H-V5 for example:
company
JN P 22K H
H：380V
L：220V
Product Series Name
power level

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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;
●After unpacking, please check whether the equipment is in good condition;
●According to the packing list to check whether all the parts is correct and
in good condition.
If any damage is found, please contact supplier or the transportation company.
Please keep well the photos taken at the damaged parts and we’ll provide you
with best and fastest services.
Supplier supply the standard inverter and commonly used accessories as
below:
Figure3-1 Inverter and standard fittings