Growatt 750TL2-HV User manual

Solar Pump Inverter
750W-4000W
Version: 1.3
User Manual

Table of contents
Information on this Manual ............................................................................................................... 1
Validity.................................................................................................................................................1
Scope ..................................................................................................................................................1
Target Group........................................................................................................................................1
Safety Instructions................................................................................................................................1
Symbols ...............................................................................................................................................2
Introduction....................................................................................................................................... 3
Features...............................................................................................................................................3
Product Overview .................................................................................................................................4
Installation ........................................................................................................................................ 5
Unpacking and Inspection .....................................................................................................................5
Mounting the Unit.................................................................................................................................5
Wiring Introduction ........................................................................................................................... 7
Terminal Introduction ...........................................................................................................................7
Assemble DC Connector ........................................................................................................................8
Assemble AC Output Connector .............................................................................................................8
Assemble AC Input Connector .............................................................................................................10
Assemble sensor Connector.................................................................................................................11
Wiring of Water Level Sensor ..............................................................................................................12
Recommended Diameter of Wire .........................................................................................................13
Operation ......................................................................................................................................... 14
Display Panel......................................................................................................................................14
Boot model selection...........................................................................................................................15
LCD Display Information .....................................................................................................................16
Debugging guidance ...........................................................................................................................17
Parameters Setting .............................................................................................................................19
Function Parameters........................................................................................................................ 22
Troubleshooting ............................................................................................................................... 25
Specifications................................................................................................................................... 27

1
Information on this Manual
Validity
This manual is valid for the following devices:
750TL2-HV, 1500TL2-HV, 2200TL2-HV, 4000TL2-HV
Scope
This manual describes the assembly, installation, operation and troubleshooting of this unit.
Please read this manual carefully before installations and operations.
Target Group
This document is intended for qualified persons and end users. Tasks that do not require any
particular qualification can also be performed by end users. Qualified persons must have the
following skills:
Knowledge of how a pump inverter works and is operated
Training in how to deal with the dangers and risks associated with installing and using
electrical devices and installations
Training in the installation and commissioning of electrical devices and installations.
Knowledge of the applicable standards and directives
Knowledge of and compliance with this document and all safety information
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 voltage range of PV panel meets 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.

2
3. To reduce risk of electric shock, NEVER touch any terminals on electric circuits.
4. If connection cable between inverter and water pump is more than 50m, please be sure to install a
three-phase AC reactor. Inductance value for each phase is about 1mH. Otherwise, water pump would be
easily to be damaged.
Operation
1. Only after wire connection is complete and put cover back to the inverter, it’s Enter 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 within 5 minutes. Only service after the bus
voltage is within safe range.
Symbols
Grounding Wire of Equipment
AC Value
DC Value
Phase
Before operating inverter, please read the instruction.
5 minutes
In order to avoid electric shock, break off machine with PV
terminal and AC terminal for at least 5 minutes, then contact
the wire of machine output terminal and input terminal
Warning: when machine works, the temperature of metal shell
may be very high.

3
Pump
Introduction
Solar Pumping System
This is a solar pump inverter which allows power to be switched from the AC/DC power obtained from solar panels
and gird to the AC power needed to control the pump.
This series solar pump inverters are built-in with Boost circuit for MPPT solar charger to maximize solar power,and
able to set the priority of PV and utility grid input. The inverter is suitable for submersible pumps, ground pumps,
swimming pool pumps and other pumps using asynchronous motors.
Features
Rated power 750W to 4000W
Inbuilt MPPT solar controller
Inbuilt BOOST circuit for broaden PV voltage range
Automatic selection of photovoltaic and AC power
IP65 protection level
Built-in full protection and self-diagnosis
Soft start function
Comprehensive LCD and LEDs display real-time system status
Remote monitoring through GPRS /WIFI（optional）

4
Product Overview
1. LCD display
2. LED indicators
3. Function buttons
4. AC input
5. PV input
6. Water level sensor port
7. AC output
8. GPRS/WIFI communication port

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
Attachment x 1
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
waterproofand 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.
750w-2.2kw 4kw
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE ONLY.
Install Safety Nut

6

7
Wiring Introduction
There is AC input,DC input, water level sensor connection terminal, GPRS (optional), and AC output terminal.
Terminal Introduction
Socket
Terminal Introduction
Wiring Introduction
PV
PV+
Connect with the positive pole of solar array
PV-
Connect with the negative pole of solar array
AC Input
L
Connect with power grid L phase
N
Connect with power grid N phase
PE
Connect with protective ground wire
AC Output
(3 PH motor connect 1，2，L)
(1 PH motor connect 1，L)
1
Connect with motor U phase
2
Connect with motor V phase
L
Connect with motor W phase
PE
Connect with protective ground wire
COM terminal
1
Connect with Sensor 2 of water tank
2
Connect with Sensor 2 of water tank
3
/
4
/
5
Connect with Sensor 1 of water well
6
Connect with Sensor 1 of water well
GPRS connection terminal
1
+5V
2
TXD-232
3
RXD-232
4
GND
Warning: The places of input sockets of DC positive pole and negative pole of different models are different.
Warning: The signal marshalling sequence of AC output sockets of different models are different.

8
Assemble DC Connector
Strip the cable 6-8mm,then connect the bare wire core into core tube of connector.
Crimp contact barrel by using a hex crimping die. Put the contact barrel with striped cable in the corresponding
crimping notch and crimp the contact. Insert the core tube into slot of connection until hear the sound
indicating fit in place.
Tighten the nuts to finish the wiring.
Warning: Risk of electric shock! Before shifting solar panel, disconnect the pump inverter AC and DC.
Besides, allow 5-minute internal capacitance discharging.
Assemble AC Output Connector
Connection to the AC output side terminal for the solar pump inverter，there are two types of AC connector
mode.
For type I of 3 phase AC output connector：AC connector 1,2,L,PE gets connection with the pump through 4
wires (U wire, V wire, W wire and PE wire)
For type II of 1 phase AC output connector：AC connector L, 1,PE gets connection with the pump through 3
wires (L wire, N wire and PE wire)

9
type I type II
Remove the parts of the AC connection plug from the accessory bag. Guide the pressure screw sealing right,
threaded sleeve over the AC cable.
Socket element threaded sleeve sealing ring pressure screw
Insert the stripped and bared conductors U, V, W, PE in to screw terminals with sign U, V, W, PE on the socket
element and tighten the screws.
Connect the conductors
Push the threaded sleeve in to the socket element. Screw the pressure screw tightly onto the threaded sleeve.
Close the connector
Insert the AC connection plug into the AC connection receptible on the inverter.
Lock the housing Unlock the housing

10
Assemble AC Input Connector
Remove the parts of the AC connection plug from the accessory bag. Guide the pressure screw sealing right,
threaded sleeve over the AC cable.
Socket element threaded sleeve sealing ring pressure screw
Insert the stripped and bared conductors L, N, PE in to screw terminals with sign L, N, PE on the socket
element and tighten the screws.
Connect the conductors
Push the threaded sleeve in to the socket element. Screw the pressures crew tightly onto the threaded sleeve.
Close the connector
Insert the AC connection plug into the AC connection receptible on the inverter.
Lock the housing Unlock the housing

11
Assemble sensor Connector
The series inverter has one 8 Pin signal connector, signal cable ports：
Pin number
Wiring Introduction
1
Connect with sensor of tank
2
Connect with sensor of tank
3
/
4
/
5
Connect with sensor of well
6
Connect with sensor of well
7
/
8
/
Insert the stripped and bared cable through pressure screw，sealing，threaded sleeve in sequence，insert
cables into connection terminal according to number indicates on it and tighten the screws firmly .Please try to
pull out the wire to make sure the it is well connected.
Push the threaded sleeve into the socket .Tighten up the cap on the terminal.
Push the threaded sleeve to connection terminal until both are locked tightly on the inverter

12
Press the fasteners and pull it out form the inverter.
Wiring of Water Level Sensor
Notice: connect water level sensor 1 and detect water shortage. Respectively connect two signal lines of
sensor with 5 and 6 of COM terminal. When water level sensor 1 detects that the water level of well is lower
than the level set by sensor, the pump inverter will delay for 5s, then turn off output protection pump. The
water level recovers. Wait for 20s, then the pump inverter re-works normally.
Notice: connect water level sensor 2 to defect whether water is full. Connect two signal lines of sensor
with 1 and 2 of COM terminal. When water level sensor 2 detects that the water level of water tank exceeds
the level set by sensor, the pump inverter delays for 5s and turns off output; when water level is lower than set
level, wait for 20s, then pump inverter re-starts to work normally.
Utility Grid
Connect 1 and 2
Water Tube
AC Output
Connect 5 and 6
Water Level Sensor 2
Water Pump
Water Level Sensor 1
Water Tank
Solar Panel
Water Well

13
Recommended Diameter of Wire
Model
Recommended
output
current(A)
Output
voltage(V)
length≤
30m
length≤
60m
length≤
90m
length≤
120m
length≤
150m
length≤
180m
length≤
210m
750TL2-HV
4.2A (3PH) /
5.1 (1PH)
220V
1
1.5
2.5
4
4
4
6
1500TL2-HV
7.5A (3PH) /
10.2A (1PH)
220V
1.5
2.5
2.5
6
6
6
6
2200TL2-HV
10A (3PH) /
14 (1PH)
220V
2.5
2.5
4
6
6
6
6
4000TL2-HV
16A (3PH) /
25 (1PH)
220V
4
4
6
8
8
8
8
Units: mm2
Notice: The environment temperature for the above recommended wire dimension should ≤50°C.
Notice: Large-power wall-mounted model uses multiple-channel DC input. The dimension of DC wire of each
channel shall be selected according to the above table.

14
Operation
Display Panel
Solar pump inverter uses LCD operation panel. The operation panel is shown in the figure, including 3 LED lights,
LCD display and 5 keys.
Indicator and Key
Name
Function Introduction
POWER
System running
indicator
Green
LED on, inverter is running
ALARM
Warning
indicator
Yellow
LED on, warning or LED flashing in
auto operation mode
FAULT
Failure indicator
Red
LED on, system failure
Operation /
Stop Key
1.Press for a short time, then the inverter starts
control;
2. Press for 2s, then inverter stops control.
Confirm /
Programming
Key
1.Press for a short time to enter programming
mode. After altering parameter, “press for a
short time” to confirm the alteration
2. Press for 2s to enter the programming menu.
Increment Key
1.When control parameter displays state,
increase parameter number or parameter value;
2. When operation displays data state, according
to operation mode, increase output frequency or
display current operation data.
Decrement Key
1.When control parameter displays state, press
for a short time to decrease parameter number
or parameter value.
2. When operation shows data state, according
to operation mode, decrease output frequency
or display current operation data.
Return Key
Return the initial display

15
Boot Model Selection
Connect PV and AC
power on to enter the
model setting
Click enter
again
Model Set
3PH: Three plase motor
Model Set
1PH:Single phase motor
Long press 3s to set
OK
Press up and down to select motor
type
Model Set
Set OK
Freq Run
50.00HZ
The machine will
start up and run
Model Set
1PH

16
LCD Display Information
The LCD display information includes operation data, control parameters, and historical parameters.
The information on the display will be switched in turns by pressing UP/DOWN key. The selectable information
will be switched as below.
Inverter
temperature
Freq Run
50.00HZ
Output frequency of the
inverter
Freq Set
50.00HZ
Set frequency of the
inverter
PV Volt
350V
Input voltage of
the inverter
PV Power
2000W
Input power of
inverter
Output Volt
220V
Output Curr
0.7A
Output current
of the inverter
Capacity
+79.1%
The relative value
of rated power
Run time
20h
Inverter
running time
Temperature
28.9C
Iverter model
2.2KW
Inverter type
number
Output voltage
of the inverter

17
Debugging Guidance
Before setting the parameters, please make sure all the wiring is correct.
a. Set P00.01=0, to set as manual operation mode .
b. Set the motor type through P00.02:0 indicates 3PH motor and 1 indicates 1PH motor.
c. Set water pump nameplate parameters: P02.01 motor rated power value; P02.02 motor rated
frequency value; P02.04 motor rated voltage value; P02.05 motor rated current value.
d. Water output test of pump
Click the run button to observe the running frequency and water output.Under the normal strong light
condition,if the operation frequency of three-phase motor is low or the water volume is small,it
indicates that the motor line may be connected reversely,so it is necessary to set function code
P00.13=1 or exchange the wiring of two motor lines.
e. After finishing parameter setting of water pump, set P00.01=1. The operation code channel is altered
as original automatic mode instruction .
Notice: If the inverter fails,set P00.18 to restore the factory settings.

18
Debugging Flow Chart
Yes
No
Yes
Yes
No
No
Yes
Yes
No
start
Power on the inverter after
confirm correct wiring
P00.1=0
P02.00=1
P02.00=0
Setting motor name
plate parameters
Setting motor name
plate parameters
P15.29=2
P15.29=1
Automatic switching of
photovoltaic input and AC
input:P15.29=0
Click the run key
on the keyboard
P00.13=1
P00.01=1
End
Single phase motor?
Three phase motor?
PV input only?
AC input only?
Is the water
output normal?
Automatic operation?