Jntech JNP550L-V5 Original operating instructions

Quick Installation
用户手册
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
JNPxG-QI-EN-V1.1

·1·
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
1 INVERTER UNPACKING ................................................................................... 4
2 INSTALLATION............................................................................................... 5
2.1 Prepare Installation Tools.................................................................. 5
2.2 Installation Direction and spacing dimension ................................... 5
2.3 Installation of Inverter....................................................................... 6
3 ELECTRICAL CONNECTION ............................................................................... 7
3.1 Connecting Terminals of Inverter ...................................................... 7
3.2 Cable Selection for Electrical Connection .......................................... 8
3.3 AC Side(AC IN and MOTOR) Electrical Connection ............................ 9
3.4 DC Side Connection ......................................................................... 10
3.5 Inverter grounding .......................................................................... 11
3.6 Water Level Sensor Connection....................................................... 11
3.7 Communication connection ............................................................ 15
QUICK INSTALLATION GUIDELINE FOR SOLAR PUMPING
INVERTER – JNP11KH-V4 JNP15KH-V4 JNP18K5H-V4...........16
4 INVERTER UNPACKING ................................................................................. 16
5 INSTALLATION............................................................................................. 17
5.1 Prepare Installation Tools................................................................ 17
5.2 Installation Direction and spacing dimension ................................. 17
5.3 Installation of Inverter..................................................................... 17
6 ELECTRICAL CONNECTION ............................................................................. 18

·2·
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 ............................................................ 21
QUICK INSTALLATION GUIDELINE FOR SOLAR PUMPING
INVERTER – JNP22KH-V5 JNP30KH-V5 JNP37KH-V5
JNP45KH-V5 JNP55KH-V5...............................................................23
7 INVERTER UNPACKING ................................................................................. 23
8 INSTALLATION............................................................................................. 24
8.1 Prepare Installation Tools................................................................ 24
8.2 Installation Direction and spacing dimension ................................. 24
8.3 Installation of Inverter..................................................................... 24
9 ELECTRICAL CONNECTION ............................................................................. 25
9.1 Connecting Terminals of Inverter .................................................... 25
9.2 Cable Selection for Electrical Connection ........................................ 26
9.3 DC Side Connection ......................................................................... 26
9.4 AC Side Electrical Connection .......................................................... 27
9.5 Inverter grounding .......................................................................... 28
9.6 Water Level Sensor Connection....................................................... 28
9.7 Communication connection ............................................................ 31
COMMISSIONING GUIDELINE FOR SOLAR PUMPING INVERTER
................................................................................................................32
10 COMMISSIONING ...................................................................................... 32
10.1 Verify before Commissioning ........................................................ 32
10.2 LCD Panel Operating Instructions.................................................. 33
10.3 Commissioning for JNP1K1L-V5~JNP18K5H-V4 ............................ 34
10.4 Commissioning for JNP22KH-V5~JNP55KH-V5.............................. 36

·3·
11 APPENDIX: TROUBLESHOOTING ................................................................... 43
11.1 Troubleshooting for JNP550L-V5~JNP18K5H-V4........................... 43
11.2 Troubleshooting for JNP22KH-V5~JNP55KH-V5 ............................ 45

·4·
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:
No.
Description
No.
Description
1
PV pump inverter
6
Water level sensor (Optional)
2
Signal terminal
7
Quick Installation Guideline
3
Cold-pressed
Terminal(SC4-5)
8
Packing lis
4
Cold-pressed
Terminal(UT10-5)
9
Water level sensor (Optional)
5
Expansion bolt(M6*60)
10
Certificate of inspection

·5·
2 Installation
2.1 Prepare Installation Tools
The following tools will be needed in inverter installation and wire connection.
Sketch map
Name
Recommend
specification
Function
Wire crimpers
M2.5~M8
Crimp the PV cable core in
connector tube for PV
connector.
Electric drill
Ф8
Used for drilling holes for
installation bracket.
Straight
screwdriver
Ф3
Used for AC side wire
installation
Cross
screwdriver
Ф5
Used for installing and
disassembling inverter cover
2.2 Installation Direction and spacing dimension
The inverter shall be installed vertically or tilted backwards with a maximum
angle of 10°
The minimum installation spacing dimensions are shown below:
Direction
Minimum spacing
Direction
Minimum spacing
Above
100cm
Sides
100cm
Below
100cm
Front
100cm
·5·
2 Installation
2.1 Prepare Installation Tools
The following tools will be needed in inverter installation and wire connection.
Sketch map
Name
Recommend
specification
Function
Wire crimpers
M2.5~M8
Crimp the PV cable core in
connector tube for PV
connector.
Electric drill
Ф8
Used for drilling holes for
installation bracket.
Straight
screwdriver
Ф3
Used for AC side wire
installation
Cross
screwdriver
Ф5
Used for installing and
disassembling inverter cover
2.2 Installation Direction and spacing dimension
The inverter shall be installed vertically or tilted backwards with a maximum
angle of 10°
The minimum installation spacing dimensions are shown below:
Direction
Minimum spacing
Direction
Minimum spacing
Above
100cm
Sides
100cm
Below
100cm
Front
100cm

·6·
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.

·7·
3 Electrical Connection
3.1 Connecting Terminals of Inverter
The input and output terminals are shown as below:
Terminals Description
Terminals
Description
PV
PV array DC positive input terminals(PV+、PV-)

·8·
AC IN
AC input terminals (R、S、T、PE)
MOTOR
Output terminal, connect with AC pump (U、V、W)
SENSOR
Water level sensor signal input terminal(SY、COM、DG) ( optional)
COM
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
JNP2K2L-V5
440VDC,15A
JNP3KL-V5
440VDC,30A
JNP3K7L-V5
440VDC,30A
JNP4KL-V5
440VDC,30A
JNP2K2H-V5
440VDC,15A
JNP3KH-V5
440VDC,15A
JNP4KH-V5
440VDC,20A
JNP5K5H-V5
440VDC,30A
JNP7K5H-V5
440VDC,30A
Notice!
It must be DC breaker, it’s prohibited to be
replaced by AC breaker.
3.2 Cable Selection for Electrical Connection
User can select cables for electrical connection according to the following
specifications.
Inverter
Cable range（AWG）
Cable recommended（AWG）
DC side
AC side
DC side
AC side
PV+、PV-
U、V、W
R、S、T
PE
PV+、PV-
U、V、W
R、S、T
PE
JNP550L-V5
14-12
14-12
12
12
12
12
JNP750L-V5
14-12
14-12
12
12
12
12
PV+
PV+
PV-PV-
DC Breaker
·8·
AC IN
AC input terminals (R、S、T、PE)
MOTOR
Output terminal, connect with AC pump (U、V、W)
SENSOR
Water level sensor signal input terminal(SY、COM、DG) ( optional)
COM
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
JNP2K2L-V5
440VDC,15A
JNP3KL-V5
440VDC,30A
JNP3K7L-V5
440VDC,30A
JNP4KL-V5
440VDC,30A
JNP2K2H-V5
440VDC,15A
JNP3KH-V5
440VDC,15A
JNP4KH-V5
440VDC,20A
JNP5K5H-V5
440VDC,30A
JNP7K5H-V5
440VDC,30A
Notice!
It must be DC breaker, it’s prohibited to be
replaced by AC breaker.
3.2 Cable Selection for Electrical Connection
User can select cables for electrical connection according to the following
specifications.
Inverter
Cable range（AWG）
Cable recommended（AWG）
DC side
AC side
DC side
AC side
PV+、PV-
U、V、W
R、S、T
PE
PV+、PV-
U、V、W
R、S、T
PE
JNP550L-V5
14-12
14-12
12
12
12
12
JNP750L-V5
14-12
14-12
12
12
12
12
PV+
PV+
PV-PV-
DC Breaker

·9·
JNP1K1L-V5
14-12
14-12
12
12
12
12
JNP1K5L-V5
14-12
14-12
12
12
12
12
JNP2K2L-V5
14-12
14-12
12
12
12
12
JNP3KL-V5
14-12
14-12
12
12
12
12
JNP3K7L-V5
14-12
14-12
12
12
12
12
JNP4KL-V5
12-10
14-12
12
10
12
12
JNP2K2H-V5
12-10
14-12
10
10
12
10
JNP3KH-V5
12-10
14-12
10
10
12
10
JNP3K7H-V5
12-10
14-12
10
10
12
10
JNP4KH-V5
12-10
14-12
10
10
12
10
JNP5K5H-V5
12-10
14-12
10
10
12
10
JNP7K5H-V5
12-10
14-12
10
10
12
10
3.3 AC Side(AC IN and MOTOR) Electrical Connection
Step1: Please connect the AC wire according to the following steps:
Operation Instruction
Operation Demonstration
1. Step Using wire crimpers, connecting
AC cable and Cold-pressed
Terminal(SC4-5).
Step2: Fixed the AC cable(R、S、T、PE、U、V、W)Secure to the terminal through
the terminal cover.

·10·
3.4 DC Side Connection
Danger！DC side electric connection must be off, otherwise,
it may cause casualty!
Step1: Please connect the DC wire according to the following steps:
Operation Instruction
Operation Demonstration
1. Step Using wire crimpers, connecting PV
cable and Cold-pressed Terminal(UT10-5).
Step2: Fixed the positive and negative cable Secure to the terminal through the
terminal cover.
Note！The phase sequence ofAC pump motor and inverter should be
corresponding, and if connection error occurs, there will be no water output
or only with small water flow. Phase sequence’s connection is right or not
shall be inspected when it’s trial running for the first time.
·10·
3.4 DC Side Connection
Danger！DC side electric connection must be off, otherwise,
it may cause casualty!
Step1: Please connect the DC wire according to the following steps:
Operation Instruction
Operation Demonstration
1. Step Using wire crimpers, connecting PV
cable and Cold-pressed Terminal(UT10-5).
Step2: Fixed the positive and negative cable Secure to the terminal through the
terminal cover.
Note！The phase sequence ofAC pump motor and inverter should be
corresponding, and if connection error occurs, there will be no water output
or only with small water flow. Phase sequence’s connection is right or not
shall be inspected when it’s trial running for the first time.

·11·
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:
·11·
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:

·12·
Terminal（SENSOR）
connector pin
Detail
DG
Dry protection pin, Connected black cable
SY
Overflow protection pin, Connected white cable
COM
Dry protection and Overflow protection common pin,
Connected green cable

·13·
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” "Para Set" "OF-F" to modify to “ON”. The
setting method with reference to “21 Commissioning” .
If you selected water level sensor A, then water sensor installation method is
shown below:
B1 connect white cable
B2 connect green cable
A2 connect green cable
A1 connect black cable
Note: Both yellow shrub-
like hammer, you need
filled water, when you
install sensor A
The detail figure of Sensor A
·13·
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” "Para Set" "OF-F" to modify to “ON”. The
setting method with reference to “21 Commissioning” .
If you selected water level sensor A, then water sensor installation method is
shown below:
B1 connect white cable
B2 connect green cable
A2 connect green cable
A1 connect black cable
Note: Both yellow shrub-
like hammer, you need
filled water, when you
install sensor A
The detail figure of Sensor A

·14·
The installation figure of Sensor A
If you selected water level sensor B, then water sensor installation method is
shown below:
connect green cable
connect black cable
connect green cable
connect white cable
A:the Installation location of
overflow water level
sensor.
1. B:the Installation
location of pump dryed
water level sensor.
2. C:Pump outlet.
3. S about 1-3 m .
For dry protection, the end with cable
of sensor should be upwards
For over-
flow protection, the end with cable of
sensor should be downwards.
The installation figure of Sensor B

·15·
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.
3.7 Communication connection
Communication connector pins in inverter panel port are defined are shown
below:
Note：More information about the communication module, please refer to the
User and Installation Manual.
·15·
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.
3.7 Communication connection
Communication connector pins in inverter panel port are defined are shown
below:
Note：More information about the communication module, please refer to the
User and Installation Manual.

·16·
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:
No.
Description
No.
Description
1
PV pump inverter
7
Ring Terminals
2
Installation bracket
8
Packing list
3
Blue Ring tool
9
Water level sensor (Optional)
4
Expansion bolt
10
Quick Installation Guideline
5
PV connector
11
Water level sensor (Optional)
6
Sensor and communication
connector (Optional)
12
Certificate of inspection

·17·
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.
Step2:
Fix installation bracket in the
located holes with bolts.
Step3:
Tighten the bolts, make the bolts
cling to the wall.
Step4:
Hang firmly inverter onto
the installation bracket,
then lock the hole.
·17·
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.
Step2:
Fix installation bracket in the
located holes with bolts.
Step3:
Tighten the bolts, make the bolts
cling to the wall.
Step4:
Hang firmly inverter onto
the installation bracket,
then lock the hole.

·18·
6 Electrical Connection
6.1 Connecting Terminals of Inverter
The input and output terminals are shown as below:
PV array
GPRS
antenna
Water level
sensor
Earth
Water
pump
RS485
module
Solar pumping inverter
Grid
Terminals Description
Terminals
Description
PV1+/ PV2+/PV3+
PV array DC positive input terminals
PV1-/ PV2-/PV3-
PV array DC negative input terminals
AC IN
AC input terminals (R、S、T、PE)
MOTOR
Output terminal, connect with AC pump (U、V、W)
SENSOR
Water level sensor signal input terminal ( optional)
COM
RS485 or GPRS communication interface (optional)
Ground terminal
·18·
6 Electrical Connection
6.1 Connecting Terminals of Inverter
The input and output terminals are shown as below:
PV array
GPRS
antenna
Water level
sensor
Earth
Water
pump
RS485
module
Solar pumping inverter
Grid
Terminals Description
Terminals
Description
PV1+/ PV2+/PV3+
PV array DC positive input terminals
PV1-/ PV2-/PV3-
PV array DC negative input terminals
AC IN
AC input terminals (R、S、T、PE)
MOTOR
Output terminal, connect with AC pump (U、V、W)
SENSOR
Water level sensor signal input terminal ( optional)
COM
RS485 or GPRS communication interface (optional)
Ground terminal

·19·
6.2 Cable Selection for Electrical Connection
User can select cables for electrical connection according to the following
specifications.
Inverter
Cable range（AWG）
Cable recommended（AWG）
DC side
AC side
DC side
AC side
PV+,PV-
U、V、W
R、S、T
PE
PV+,PV-
U、V、W
R、S、T
PE
JNP11KH-V4
12
8
10
12
8
10
JNP15KH-V4
12
8
10
12
8
10
JNP18K5H-V4
12
8
10
12
8
10
6.3 AC Side Electrical Connection
Step1: Connecting of the wire of the connector:
Operation Instruction
Operation Demonstration
1. The AC IN contains four cable, each has a line
mark(R、S、T、PE), Respectively connected to the
grid cable.
2. The motor contains three cable, each has a line
mark(U、V、W), Respectively connected to the
motor cable.
Note！The phase sequence of AC pump and inverter should be
corresponding, and if connection error occurs, there will be no water
output or only with small water flow. Phase sequence’s connection is
right or not shall be inspected when it’s trial running for the first time.
·19·
6.2 Cable Selection for Electrical Connection
User can select cables for electrical connection according to the following
specifications.
Inverter
Cable range（AWG）
Cable recommended（AWG）
DC side
AC side
DC side
AC side
PV+,PV-
U、V、W
R、S、T
PE
PV+,PV-
U、V、W
R、S、T
PE
JNP11KH-V4
12
8
10
12
8
10
JNP15KH-V4
12
8
10
12
8
10
JNP18K5H-V4
12
8
10
12
8
10
6.3 AC Side Electrical Connection
Step1: Connecting of the wire of the connector:
Operation Instruction
Operation Demonstration
1. The AC IN contains four cable, each has a line
mark(R、S、T、PE), Respectively connected to the
grid cable.
2. The motor contains three cable, each has a line
mark(U、V、W), Respectively connected to the
motor cable.
Note！The phase sequence of AC pump and inverter should be
corresponding, and if connection error occurs, there will be no water
output or only with small water flow. Phase sequence’s connection is
right or not shall be inspected when it’s trial running for the first time.