SolarEdge 2.2KW User manual

2.2KW/7.5KW/11KW
Solar Inverter for Water Pump
Version: 1.1
User Manual

Table Of Contents
ABOUT THIS MANUAL ......................................................................................................................................1
Purpose............................................................................................................................................................1
Scope...............................................................................................................................................................1
SAFETY INSTRUCTIONS...................................................................................................................................1
Inspection.........................................................................................................................................................1
Installation........................................................................................................................................................1
Operation .........................................................................................................................................................2
Maintenance ....................................................................................................................................................2
INTRODUCTION.................................................................................................................................................3
Features...........................................................................................................................................................3
Basic System Architecture...............................................................................................................................3
Product Overview.............................................................................................................................................4
INSTALLATION...................................................................................................................................................5
Unpacking and Inspection................................................................................................................................5
Preparation ......................................................................................................................................................5
Mounting the Unit.............................................................................................................................................5
PV Connection.................................................................................................................................................6
AC Output (Motor) Connection ........................................................................................................................7
AC Input Connection........................................................................................................................................8
Final Assembly.................................................................................................................................................9
Control Signal Connection (Optional) ............................................................................................................10
COMMISSIONING.............................................................................................................................................10
OPERATION......................................................................................................................................................11
Power ON/OFF ..............................................................................................................................................11
Operation and Display Panel.........................................................................................................................11
Parameter Setting..........................................................................................................................................12
Fault and Warning Code .................................................................................................................................15
Fault Reference Code....................................................................................................................................15
Warning Reference Codes.............................................................................................................................16
SPECIFICATIONS.............................................................................................................................................17

1
ABOUT THIS MANUAL
Purpose
This manual describes the assembly, installation, operation and troubleshooting of this unit. Please read
this manual carefully before installations and operations. Keep this manual for future reference.
Scope
This manual provides safety and installation guidelines as well as information on tools and wiring.
SAFETY INSTRUCTIONS
WARNING: This chapter contains important safety and operating instructions. Read and
keep this manual for future reference.
Inspection
If missing components or damaged inverter is found after receiving, please do NOT install or operate it.
Otherwise, it may cause human injury or equipment damage.
Installation
1. Before installation, please make sure if the phases and nominal voltage of power sources meet the
requirement.
2. Check if all wires are firmly connected without short circuit. Otherwise, it will cause equipment damage.
3. Do NOT install this inverter under direct sunlight because high temperature may cause equipment damage.
4. Please install the inverter away from inflammable and explosive objectives. Please ensure no liquid can
enter the inverter.
5. Please install the inverter on metal non-combustible surface.
1. CAUTION!! Only qualified personnel can install and operate this inverter.
2. To reduce risk of electric shock, disconnect power source before making wire connection. Otherwise, it may
cause electrical shock.
3. To reduce risk of electric shock, NEVER touch any terminals on electric circuits.

2
Operation
1. Only after wire connection is complete and put cover back to the inverter, it’s ok to do commissioning.
Otherwise, it will cause electric shock
2. If sunlight is sufficient but little water is pumped, maybe the wires on motor connection are reversely
connected. Please reverse any two wires of them.
3. When testing water pump, be sure to install water pump at appropriate water level. Never allow water
pump in dry running. Otherwise, the inverter will activate protection.
Maintenance
1. Only qualified personnel can maintain, repair, inspect the inverter and replace any components.
2. It may still contain energy after disconnecting power source for 10 minutes. Only service the unit after the
bus voltage is within safe range.

3
INTRODUCTION
Interest in renewable energy has increased over the past few years due to solar power becoming more cost
effective and eco-friendly. This is a solar inverter which allows power to be switched from the DC power
obtained from solar panels to the AC power needed to control the pump. This solar inverter is also accepted
manually from the grid or 3-phase generator when solar power is not efficient. With the renewable solar
inverter, pumps can adapt to solar power sources rather than traditional electrical supplies or generators.
This solar inverter is built-in with MPPT solar charger to maximize solar power. Besides, it is easy to install with
low maintenance cost. It becomes an eco-friendly solution for the rural areas where grid power is expensive
and unreliable.
Features
Built-in MPPT solar charger
Supports three-phase asynchronous motor
Compatible to utility or generator input
Built-in full protection and self-diagnosis
Soft start function prevents water hammer effect and extends system lifecycle
Comprehensive LCD and LEDs display real-time system status
Remote monitoring through RS-485
Basic System Architecture
This solar inverter is specially designed to power water pump. The following illustration shows basic application
for this inverter. It also includes following devices to have a complete running system:
3-phase generator or Utility.
PV modules

4
Product Overview
1. PV input
2. AC input
3. AC output
4. RS-485 communication port
5. RS-232 communication port
6. Signal control slot
7. Display screen (Refer to Operation and Display Panel for the details)
8. LED indicators (Refer to Operation and Display Panel for the details)
9. Operation buttons (Refer to Operation and Display Panel for the details)

5
INSTALLATION
Unpacking and Inspection
Before installation, please inspect the unit. Be sure that nothing inside the package is damaged. You should
have received the following items inside of package:
The unit x 1
User manual x 1
RJ45 cable x 1
RS-232 cable x 1
Preparation
Before connecting all wirings, please take off bottom cover by removing two screws as shown below.
Mounting the Unit
Consider the following points before selecting where to install:
Do not mount the inverter on flammable construction
materials.
Mount on a solid metal surface.
Avoid direct sunlight. Be sure the environment is shady and
cool.
Be sure to install the inverter into a box with waterproof and
dustproof.
Install this inverter at eye level in order to allow the LCD
display to be read at all times.
The recommended installation position is to be adhered to
the wall vertically.
Be sure to keep other objects and surfaces as shown in the
diagram to guarantee sufficient heat dissipation and to
have enough space for removing wires.
SUITABLE FOR MOUNTING ON CONCRETE OR
OTHER NON-COMBUSTIBLE SURFACE ONLY.

6
1. Drill four holes in the marked locations with four
screws.
2. Install the unit by screwing four screws. It’s
recommended to use M5 screws.
PV Connection
CAUTION: Before connecting to PV modules, please install separately a DC circuit breaker between inverter
and PV modules. The recommended spec of DC breaker is C8A/2P/1000VDC/25KA for 2.2KW,
C32A/2P/1000VDC/25KA for 7.5KW and C40A/2P/1000VDC/25KA for 11KW.
NOTE: It’s required to install PV combiner box when using several PV modules in parallel and series.
CAUTION: Important
If there is no diode protection for current backfeed protection between PV module and inverter, please do not
turn on AC and DC breakers at the same time. Otherwise, it will cause damage on PV modules.
CAUTION: Important
Before making PV connection, be sure to do the following actions to prevent human injury or machine damage.
1. It’s required to turn off circuit breaker.
2. Make sure connect positive pole (+) of PV input connector in inverter to positive pole (+) of PV modules and
negative pole (-) of PV input connector in inverter to negative pole (-) of PV modules.
3. Make sure AC input power source is disconnected.

7
PV Module Selection:
When selecting proper PV modules, please be sure to consider below parameters:
1. Open circuit Voltage (Voc) of PV modules not exceeds max. DC voltage (800VDC).
2. Accumulated voltage of connected PV panels should be close to 560V for inverter with 380V output voltage.
Take 255Wp PV module as an example. After considering above two parameters, the recommended module
configuration for 7.5KW inverter is listed as below table.
Inverter Model
7.5KW
Rated Output Power (Po)
7.5KW
Calculation:
1. 560V/Vmpp=panel number N
N= 560V/30.4=18.4pcs ≒19
2. Check if Voc: N*Voc < 800V. If not, please
reduce the panel N number to get the value
lower than 800.
19*37.5(Voc)=712.5V < 800V
3. Panel numbers in parallel (M):
M Po/(N*Pmax/Ƞefficiency).
M=7.5KW/(19*255/0.97)=1.6≒2
19 pieces in serial and 2 sets in parallel
Maximum Power (Pmax)
255W
Max. Power Voltage Vmpp(V)
30.4V
Max. Power Current Impp(A)
8.56A
Open Circuit Voltage Voc(V)
37.5V
Short Circuit Current Isc(A)
9.12A
AC Output (Motor) Connection
CAUTION!! There are two terminal blocks with “AC INPUT” and “AC OUTPUT” markings. Be sure to connect
motor with “AC OUTPUT” terminals. Please do NOT mis-connect input and output connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC output
connection. To reduce risk of injury, please use the proper recommended terminal and cable size as below.
Recommended terminal types:
Suggested cable requirement:
Model
Typical
Amperage
Wire size
Terminal
Torque Value
Dimensions
d (mm)
D (mm)
2.2KW
4.8A
18 AWG
4.5
9.5
1.3 ~ 1.4 Nm
7.5KW
15A
13 AWG
4.5
9.5
1.3 ~ 1.4 Nm
11KW
22A
11 AWG
4.5
9.5
1.3 ~ 1.4 Nm
Please follow below steps to implement motor connection:
1. Remove insulation sleeve 10mm for three conductors. And shorten three conductors 3 mm.
2. Insert wires according to polarities indicated on terminal block and tighten the terminal screws.
NOTE: To reverse the direction of motor rotation, reverse any two wires.
US
Black (BLK)
Red (RED)
Yellow (YEL)
Ground (GND)
International
Gray (GRY)
Black (BLK)
Brown (BRN)
Ground (GND)
International standards for motor lead wire

8
3. Make sure the wires are securely connected.
AC Input Connection
CAUTION!! Before connecting to AC input power source, please install a separate AC breaker between
inverter and AC input power source. This will ensure the inverter can be securely disconnected during
maintenance and fully protected from over current of AC input. The recommended spec of AC breaker is
D10A/3P/400VAC/25KA for 2.2KW, D25A/3P/400VAC/25KA for 7.5KW and D32A/3P/400VAC/25KA for 11KW.
CAUTION!! There are two terminal blocks with “AC INPUT” and “AC OUTPUT” markings. Be sure to connect
motor with “AC OUTPUT” terminals. Please do NOT mis-connect input and output connectors.
WARNING! All wiring must be performed by a qualified personnel.
WARNING! It's very important for system safety and efficient operation to use appropriate cable for AC input
connection. To reduce risk of injury, please use the proper recommended terminal and cable size as below.
Suggested terminal types:
Suggested cable requirement:
Model
Typical
Amperage
Wire
Terminal
Torque Value
Dimensions
d (mm)
D (mm)
2.2KW
5.4A
17 AWG
4.5
9.5
1.3 ~ 1.4 Nm
7.5KW
18.5A
12 AWG
4.5
9.5
1.3 ~ 1.4 Nm
11KW
27.1A
10 AWG
4.5
9.5
1.3 ~ 1.4 Nm
Please follow below steps to implement AC input connection:
1. Before making AC input connection, be sure to open AC protector or disconnector first.
2. Remove insulation sleeve 10mm for three conductors. And shorten three conductors 3 mm.

9
3. Insert wires according to polarities indicated on terminal block and tighten the terminal screws.
WARNING:
Be sure that AC power source is disconnected before attempting to hardwire it to the unit.
4. Make sure the wires are securely connected.
If sunlight is not sufficient or the weather is raining or cloudy, please be sure to manually switch AC input power
source to utility or backup AC power source (generator) to guarantee water pump running all the time.
Final Assembly
After connecting all wirings, please put bottom cover back by screwing two screws as shown below.
CAUTION: Important
Only one input power source is connected to the inverter anytime. Otherwise, it will cause inverter damage or
human injury.

10
Control Signal Connection (Optional)
This control signal ports are to detect water level to prevent water pump from dry running and water tank from
overflow/underflow.
Water level detector:
It’s to prevent the water pump dry running by connecting to water level probe. The length of connecting wire
should not longer than 50m. If the water level is normal in the well, please keep the water level detector in
normal closed status. If the water level is low in the well, the water level detector will be open status. If this
port is not connected to water level probe, be sure to connect COM1 and DI3 together. It’s default setting from
factory.
Remote float switch:
It’s to prevent water tank overflow or underflow by sensing a remote float switch in water tank. When water
tank is full, it will receive “full-water” signal (open status on DI1 and closed status on DI2 & COM2) from float
switch and stop the inverter. When water tank is in low level, it will receive signal (closed status on DI1 &
COM2 and open status on DI2) from float switch and start up the inverter. This action is only available when
the auto turn-on function is enabled. If the water level is normal, DI1 and COM2 are normally in open status.
COMMISSIONING
Step 1: Check the following requirements before commissioning:
Ensure all wires are firmly and correctly connected
Use a megger to check insulation of motor and wires
Check if the open circuit DC voltage of PV module meets requirement
Step 2: Switch on DC breaker and provide power to the inverter. Then, LCD screen will show 0.00. Please set up
the parameters of the inverter such as rated power, rated frequency, rated current and rated voltage. For the
detailed setting, please check “Parameter setting” section in Operation chapter.
Step 3: Press “RUN” button to activate the inverter. If the output frequency or water yield is low, it may be
wrong for output wire connection. Please exchange any two wires connected to the motor. Please be sure the
output frequency and water yield are normal. It means the wire connection is correct and complete.

11
OPERATION
Power ON/OFF
Once the unit has been properly installed, simply press “RUN” button (located on the button area) to turn
on the unit.
Operation and Display Panel
The operation and display panel, shown in below chart, is on the top case of the inverter. It includes four
indicators, six function buttons and a display screen, indicating the operating status and input/output
power information.
LED Indicator
LED Indicator
Messages
Hz
Green
Solid On
Output frequency value is displayed on the LCD screen.
A
Green
Solid On
Output current value is displayed on the LCD screen.
V
Green
Solid On
Output voltage value is displayed on the LCD screen.
A and V
Green
Solid on
Output power value is displayed on the LCD screen.
STOP/RUN
Green
Solid on
The inverter is running.
Green
OFF
The inverter stops.
Function Buttons
Function Button
Description
Esc/PROG
To enter or exit setting mode.
ENTER
To confirm the selection/value in setting mode.
RUN
To turn on the unit, press this button for at least 1 second.
Display screen
Function buttons
LED indicators

12
STOP/RST
To turn off the unit, press this button for at least 1 second.
To reset fault message, press this button for at least 1 second.
To increase the setting value.
To decrease the setting value.
and ENTER
Press these two buttons at the same time to move cursor location.
Parameter Setting
The entire display setting program structure is demonstrated as below chart.

13
Currently, parameter setting is not authorized for end user to modify. Please check local dealer or installer for
the details.
〇: This parameter can be modified no matter the inverter is in operation or off status.
◎:This parameter can not be modified when inverter is in operation.
Program #
Description
Setting Range
Unit
Default Value
Note
P0 Parameter settings for the motor
P0.00
Nominal power
factor
10-11000
W
7500
◎
P0.01
Nominal
frequency
50/60
Hz
50
◎
P0.02
Nominal voltage
323-506
V
380
◎
P0.03
Nominal current
0.1-60
A
15
◎
P0.04
Upper limit for
frequency
10 –setting
value in P0.01
Hz
50
◎
P0.05
Low limit for
frequency
10 –setting
value in P0.04
Hz
10
◎
P1 Over-current device on the motor and torque increasing
P1.00
Maximum
current limit
10-200
%
110
A multiple of
nominal current
〇
P1.01
Kp for max.
current control
50-6000
None
1000
〇
P1.02
Ki for max.
current control
5-1000
None
100
〇
P1.03
60S overload
protection
110-250
%
150
◎
P1.04
Overload
protection on
motor
110-250
%
200
◎
P1.05
Voltage for
torque
increasing
0-10
%
0
Percentage of
nominal voltage
P2 DC battery voltage setting
P2.00
Over DC voltage
protection
Setting value in
P2.01 - 800
V
800
◎
P2.01
Under DC
voltage
protection
320 –Setting
value in P2.00
V
320
◎
P2.02
PV reference
voltage
Setting value in
P2.01 –setting
value in P2.00
V
530
〇

14
CAUTION: Please be sure to set up Program P4.01 correctly. Otherwise, it will cause the inverter malfunction.
Program #
Description
Setting Range
Unit
Default Value
Note
P3 Protection setting for the inverter of the water pump
P3.00
Sleep mode while PV
energy is weak
10-3600
S
120
〇
P3.01
Sleep mode for dry
running
10-7200
S
1200
〇
P3.02
Over temperature fault
on inverter
60-100
℃
85
◎
P3.03
Over temperature
warning on inverter
10 –setting value
in P3.02
℃
75
〇
P3.04
Acceleration time for
motor
5-3600
S
20
◎
P3.05
Deceleration time for
motor
5-3600
S
20
◎
P4 Inverter operation mode setting
P4.00
MPPT function
enable/disable
0：Disable.
Control PV
voltage in setting
value of P2.02
1：Enable
None
1
◎
P4.01
Input source
0：PV input
1: AC input
None
0
◎
P4.02
Auto turn-on
0：Disable
1：Enable
None
0
◎
P5 User password setting and restore to default setting
P5.00
User password setting
0-9999
None
0
〇
P5.01
Restore to default setting
0：No
1：Yes
None
0
◎

15
Fault and Warning Code
All fault and warning codes can be reset by pressing “RST” button except for A07 and A11. When faults or
warning occur, press “RST” button and the inverter will enter standby mode. Please press “RUN” button to turn
on the inverter for operation again.
After A02 or A03 warning occurs, the inverter will auto restart operation after a period of sleep mode. If
pressing “RST” button during sleep mode, please be sure to press “RUN” button again for operation.
Fault Reference Code
Fault code
Fault type
Possible Cause
E01
Zero-crossing detection loss on output
voltage.
1. There is something wrong with the
zero-crossing detection circuit.
2. There is something wrong with driver circuit.
3. PV input power is low.
E02
Time out for BUS soft start
The resistor of soft start is broken.
E03
Relay fault
The Relay is broken.
E04
Over voltage in output
1. Inverter control is abnormal.
2. Detection is interfered.
E05
Over current in output
1. Output short circuited.
2. The motor is suddenly locked.
3. The motor is abnormal.
E06
Output voltage RMS High
Inverter control is abnormal.
E07
High PV voltage
1. PV input voltage is too high.
2. There is something wrong with voltage
detection circuit.
E08
Current unbalance
1. Output phase loss
2. Output wire is short to the earth.
3. The motor is abnormal.
E09
Fan Locked
The fan is locked.
E10
Over Temperature
1. IGBT temperature is too high
2. The wire of IGBT temperature detection is not
connected.
E11
Over current.
1. Output short circuited.
2. The motor is suddenly locked.
3. The motor is abnormal.

16
Warning Reference Codes
Warning code
Warning type
Possible Cause
A01
PV input voltage is too low.
1. PV input voltage is too low.
2. Sunlight is too weak.
A02
Weak sunlight
Sunlight is too weak
A03
Dry running
Water level in the well is low.
A04
Overload
1. The motor is suddenly locked.
2. The pump head is too high.
3. Wrong current setting on the motor.
A05
Over current
1. The motor is suddenly locked.
2. Wrong current setting on the motor.
A06
EEPROM error
There is something wrong with EEPROM circuit.
A07
IGBT over temperature warning
Over temperature on IGBT.
A08
Over temperature warning
Over temperature warning
A09
Over temperature
1. Environment temperature is beyond the upper
limit.
2. The wire of environment temperature
detection is not connected.
A10
Wrong parameter setting in the
motor.
Wrong parameter setting in the motor.
A11
Water tank is full.
Water tank is full.
A12
Water tank is dry.
No water or water in low level in the water tower.
A13
Well is dry.
No water or water in low level in the well.

17
SPECIFICATIONS
MODEL
2.2KW
7.5KW
11KW
Maximum PV Array Power
3500 W
12000 W
17600 W
Rated Output Power
2200 W
7500 W
11000 W
PV INPUT (DC)
Maximum DC Voltage
800 VDC
Start-up Voltage
350 VDC
MPPT Voltage Range
500 VDC ~ 600VDC
Number of MPP Trackers
1
OPTIONAL AC INPUT
Input Voltage
3 x 380VAC/400VAC/415VAC/440VAC
Maximum Input Current
5.8 A
20.5 A
27 A
Apparent Power
4000 VA
11000 VA
16500 VA
OUTPUT
Nominal Voltage
3 x 380/400/415/440 VAC
Efficiency
> 97%
Output Current
5.1 A
17 A
26 A
Motor Type
Three-phase asynchronous motor
Frequency Precision
± 0.2%
PROTECTION
Full Protection
Over-voltage, under-voltage, over-current, surge, over-temperature and
short circuit protection
PHYSICAL
Dimension, D X W X H (mm)
110 x 230 x 342
Net Weight (kgs)
5.5
6
6.5
Type of Mechanical Protection
IP20
INTERACE
Communication Port
RS-232/RS-485
ENVIRONMENT
Humidity
< 95% RH (No condensing)
Operating Temperature
-20°C~45°C at 100% full load, 46°C~60°C power derating