Jntech JNP1K1L-G User manual

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Solar Pumping Inverter
用户手册
User Manual
JNP1K1L-G
JNP1K5L-G
JNP2K2L-G
JNP2K2L-G-V3-EN-V3.0

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The copyright belong to Our company.
This document involves the proprietary and confidential information about Solar
pumping inverter of Our company. It strictly prohibited to disclose the document by
duplicating, photocopying, publishing online and in other forms without Our permission.

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Preface
Manual Instruction
This manual describes the transportation, installation, operation, maintenance
and troubleshooting of the following JNP inverters:
●JNP1K1L-G
●JNP1K5L-G
●JNP2K2L-G
In order to describe conveniently later, JNP1K1L-G, JNP1K5L-G, JNP2K2L-G
will be short for JNPxL-G, 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
DC power (DC).
AC power (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 INSTRUCTIONS............................................................................ 1
2 PRODUCTION INTRODUCTION.................................................................. 6
2.1 SOLAR PUMPING SYSTEM INTRODUCTION ........................................................ 6
2.2 PRODUC T ’SINTRODUCTION ......................................................................... 8
2.2.1 Appearance .................................................................................... 8
2.2.2 Production Dimensions ................................................................... 9
2.2.3 Product Name ................................................................................ 9
3 INVERTER UNPACKING ...........................................................................10
3.1 UNPACKING CHECK .................................................................................. 10
3.2 IDENTIFY INVERTER.................................................................................. 11
4 INSTALLATION PROCEDURE.....................................................................13
4.1 PREPARE INSTALLATION TOOLS ................................................................... 13
4.2 INSTALLATION STEPS ................................................................................ 13
5 INSTALLATION .......................................................................................15
5.1 INSTALLATION SITE REQUIRED .................................................................... 15

VII
5.2 INSTALLATION DIRECTION .......................................................................... 16
5.3 INSTALLATION OF INVERTER ........................................................................17
6 ELECTRICAL CONNECTION.......................................................................19
6.1 CONNECTING TERMINALS OF INVERTER ......................................................... 19
6.2 SCHEMATIC DIAGRAM OF ELECTRICAL CONNECTION ..........................................20
6.3 CABLE SELECTION ................................................................................... 22
6.4 AC SIDE ELECTRICAL CONNECTION .............................................................. 23
6.5 DC SIDE CONNECTION ...............................................................................25
6.6 AC INPU T CONNECTION ............................................................................ 28
6.7 WATER LEVEL SENSOR CONNECTION ............................................................ 30
6.7.1 Water level sensor interface define ............................................... 30
6.7.2 Water level sensor connection....................................................... 31
6.8 COMMUNIC ATION CONNECTION .................................................................. 34
6.8.1 RS485 Communication .................................................................. 34
6.8.2 GPRS Communication.................................................................... 35
6.9 DISASSEMBLING ...................................................................................... 36
6.9.1Safety Instruction .......................................................................... 36
6.9.2 Disassembling of Connector .......................................................... 36
6.9.3 Mounting and dismounting of cover panel ..................................... 38
7 COMMISSIONING ..................................................................................40
7.1 VERIFY BEFORE COMMISSIONING ................................................................ 40
7.2 INVERTER COMMISSIONING ....................................................................... 40
7.3 STOP FREQUENCY SETTING ........................................................................ 42
7.4 TIME CALIBRATION .................................................................................. 43
8 LCD PANEL OPERATING INSTRUCTIONS ....................................................44

VIII
8.1 INVERTER LCD DISPLAY ............................................................................ 44
8.1.1 LED Indicator Direction ................................................................. 44
8.1.2 Description of Buttons .................................................................. 45
8.1.3 LCD Display Interface Overview ..................................................... 46
8.2 INITIAL OPERATIONAL INTERFACE ................................................................ 49
8.3 SYSTEM PARAMETER QUERY AND SETTING ...................................................... 50
8.3.1 Query information item description ............................................... 50
8.3.2 Setting information item description ............................................. 56
8.3.3 Information Check .........................................................................62
8.3.4 Parameter Setting......................................................................... 64
8.4 MALFUNCTION INSTRUCTION ..................................................................... 66
9 MALFUNCTION AND TROUBLESHOOTING .................................................68
9.1 TROUB LESHOOTING ................................................................................. 68
9.2 MAINTENANCE ........................................................................................72
9.3 CONTACT CUSTOMER SERVICE .....................................................................73
10 APPENDIX A ........................................................................................74
11 APPENDIX B ........................................................................................ 76
11.1 QUALITY ASSURANCE ..............................................................................76
11.2 CONTACT US .................................................................................... 77

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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 notice which are in the process of operating and maintaining.
Warning！
All the installation and operation of JNPxL-G series 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！
Please inspect the inverter whether there is any damage or not, which may caused during
transportation. Please contact Our company or transportation company immediately if
some problems of inverter are found.
Installing
Ensure inverter not have electrical connections and electricity before installing.

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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.
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.
Warning！
●All the operation and wiring work should be operated by professional electrical or
mechanical engineer.
●Please do not close switch on breakers before all the equipments are not fully
connected well.