Growatt 750-S User manual

Installation
&
Operation Manual
GR - UM - 033 - A - 04
Growatt 750-S
Growatt 1500-S
Growatt 2000-S
Growatt 2500-S
Growatt 3000-S
Growatt 1000-S
Shenzhen Growatt New Energy Technology CO.,LTD
Building B, Jiayu Industrial Park, #28, GuangHui Road,
Shiyan Street, Baoan District, Shenzhen, P.R.China
T 0755-29515888
F 0755-27472131
E [e-mail]
W www.ginverter.com

About Manual
1.1 Validity
1.2 Target Group
1.3 Additional information
Safety
2.1 Intended Use
Product Description
3.1. Overview
3.2. Type label
3.3. Dimensions and Weight
3.4. Transport and Store
Unpacking
Contents
1
2
3
4
2.2 Qualification of skilled person
1.4 Symbols in this document
1.5 Glossary
2.3 Safety instruction
2.4. Assembly Warnings
2.5. Electrical Connection Warnings
2.6. Operation Warnings
3.5. The advantage of Inverter

Commissioning
6
Installation
5.2. Selecting mounting location
5.4. Connect switch
5.3. Mounting Inverter
5.1. Safety instructions
5
5.5. Grounding
5.6. Connect grid type
5.7. Electrical connection
6.1. Parameters setting
6.2. Independent function option
6.3. LCD display
6.4. Communication
6.5. Commissioning the inverter
6.6. Monitoring tool instructions
Startup and Shutdown
the Inverter
7 7.1. Start up the Inverter
7.2. Shutdown the Inverter
Operation Modes
8 8.1. Waiting mode
8.2. Normal mode
8.3. Fault mode
8.4. Shutdown mode
9.2. Checking the DC switch
9.3. Cleaning the Inverter
9.1. Checking heat dissipation
Maintenance and
Cleaning
9
10.1 Warnings(W)
10.2 Errors(E)
Trouble Shooting
10
Decommissioning
11
11.1. Dismantling the Inverter
11.2. Packing the Inverter
Technical Data
12
12.1. Specification
12.2. DC connector info
12.3. Torque
11.3. Storing the Inverter
11.4. Disposing of the Inverter
PV System Installation
13.2. Multi inverters
13.1. Single inverter
13
14.1. List
14.2. Download address
Compliance Certificates
14
Contact
15

About Manual 1
1.1 Validity.
This installation and user guide describes the assembly, installation,
commissioning, communication, maintenance, operating and failure search of the
following Growatt inverters:
This manual does not cover any details concerning equipment connected to the
Growatt ( e.g. PV modules). Information concerning the connected equipment is
available from the manufacturer of the equipment
1.2. Target group
This manual is for qualified personnel who have received training and have
demonstrated skills and knowledge in the construction and operation of this
device. Qualified Personnel are trained to deal with the dangers and hazards
involved in installing electric devices.
1.3. Additional information
Fin d furth e r inf o r m a t ion on s p e c i a l to p i cs in th e down l o a d ar e a at
The manual and other documents must be stored in a convenient place and be
available at all times. We assume no liability for any damage caused by failure to
observe these instructions. For possible changes in this manual, SHENZHEN
GROWATT NEW ENERGY TECHNOLOGY CO.,LTD accepts no responsibilities to
inform the users.
www.ginverter.com
1
Manual Introduce and Copyright
Copyright © 2010 Shenzhen Growatt New Energy Technology Co., Ltd,
All rights reserved.
No part of this document may be reproduced, stored in a retrieval system,
or transmitted, in any form or by any means, electronic, mechanical,
photographic, magnetic or otherwise, without the prior written permission
of Shenzhen Growatt New Energy Technology Co., Ltd.
Shenzhen Growatt New Energy Technology Co., Ltd makes no
representations, express or implied, with respect to this documentation
or any of the equipment and/or software it may describe, including (with
no limitation) any implied warranties of utility, merchantability, or fitness
for any particular purpose. All such warranties are expressly disclaimed.
Neither Shenzhen Growatt New Energy Technology Co., Ltd nor its
distributors or dealers shall be liable for any indirect, incidental, or
consequential damages under any circumstances.
(The exclusion of implied warranties may not apply in all cases under
some statutes, and thus the above exclusion may not apply.)
Specifications are subject to change without notice. Every attempt has
been made to make this document complete, accurate and up-to-date.
Readers are cautioned, however, that Growatt reserves the right to make
changes without notice and shall not be responsible for any damages,
including indirect, incidental or consequential damages, caused by
reliance on the material presented, including, but not limited to,
omissions, typographical errors, arithmetical errors or listing errors in the
content material.
All trademarks are recognized even if these are not marked separately.
Missing designations do not mean that a product or brand is not a
registered trademark.
SHENZHEN GROWATT NEW ENERGY TECHNOLOGY CO.,LTD
Building B, Jiayu Industrial Park, #28, GuangHui Road, Shiyan Street,
Baoan District, Shenzhen, P.R.China
Growatt 750-S
Growatt 1500-S
Growatt 2000-S
Growatt 2500-S
Growatt 3000-S
Growatt 1000-S

1.4. Symbols in this document
A warning describes a hazard to equipment or personnel. It calls attention to a
procedure or practice, which, if not correctly performed or adhered to, could result
in damage to or destruction of part or all of the Growatt equipment and/or other
equipment connected to the Growatt equipment or personal injury.
1.4.1. Warnings in this document
Symbol description
DANGER
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE
NOTICE is used to address practices not related to personal
injury.
Information
Information that you must read and know to ensure optimal
operation of the system.
1.4.2. Markings on this product
Symbol Explanation
Electrical voltage!
Risk of fire or explosion！
Risk of burns
Operation after 5 minutes
Point of connection for
grounding protection.
Direct Current (DC)
Alternating Current (AC)
The inverter has no transformer.
Read the manual.
Bluetooth communication is enabled.
CE mark.
The inverter complies with the
requirements of the applicable
EC guidelines.
The inverter must not be disposed
of with the household waste.
32

5
4
1.5.Glossary
AC
Abbreviation for "Alternating Current"
DC
Abbreviation for "Direct Current"
Energy is measured in Wh (watt hours), kWh (kilowatt hours) or MWh (megawatt
hours). The energy is the power calculated over time. If, for example, your inverter
operates at a constant power of 1500W for half an hour and then at a constant
power of 1000 W for another half an hour, it has fed 1250 Wh of energy into the
power distribution grid within that hour.
Energy
Power is measured in W (watts), kW (kilowatts) or MW (megawatts). Power is an
instantaneous value. It displays the power your inverter is currently feeding into
the power distribution grid.
Power
Power rate is the radio of current power feeding into the power distribution grid
and the maximum power of the inverter that can feed into the power distribution
Power rate
Power factor is the ratio of true power or watts to apparent power or volt amps.
They are identical only when current and voltage are in phase than the power
factor is 1.0. The power in an ac circuit is very seldom equal to the direct product of
the volts and amperes. In order to find the power of a single phase ac circuit the
product of volts and amperes must be multiplied by the power factor.
Power Factor
PV
Abbreviation for photovoltaic
The external wireless communication technology is a radio technology that allows
the inverter and other communication products to communicate with each other.
The external wireless communication does not require line of sight between the
devices and it is selective purchasing.
wireless communication
Safety 2
2.1. Intended Use
The unit converts the DC current generated by the photovoltaic (PV) modules to
grid-compliant alternating current and performs single-phase feed-in into the
electricity grid. Growatt 750-3000-S series inverters are built according to all
required safety rules. Nevertheless, improper use may cause lethal hazards for
the operator or third parties, or may result in damage to the units and other
property.
Principle of a PV plant with this Growatt XXXX single-phase inverter
The inverter may only be operated with a permanent connection to the public
power grid.
The inverter is not intended for mobile use. Any other or additional use is not
considered the intended use. The manufacturer/supplier is not liable for damage
caused by such unintended use. Damage caused by such unintended use is at the
sole risk of the operator.
PV modules Capacitive Discharge Currents
PV modules with large capacities relative to earth, such as thin-film PV modules
with cells on a metallic substrate, may only be used if their coupling capacity does
not exceed 470nF. During feed-in operation, a leakage current flows from the cells
to earth, the size of which depends on the manner in which the PV modules are
installed (e.g. foil on metal roof) and on the weather (rain, snow). This "normal"
leakage current may not exceed 50mA due to the fact that the inverter would
otherwise automatically disconnect from the electricity grid as a protective
measure.

67
This grid-tied inverter system operates only when properly connected to the AC
–distribution network. Before connecting the inverter inverter to the power
distribution grid, contact the local power distribution grid company. This
connection must be made only by qualified technical personnel to connect, and
only after receiving appropriate approvals, as required by the local authority
having jurisdiction.
2.2. Qualification of skilled person
The GROWATT Inverters are designed and tested according to international
safety requirements; however, certainsafety precautions must be observed when
installing and operating this inverter. Read and follow all instructions, cautions
and warnings in this installation manual. If questions arise, please contact
Growatt's technical services at [phone].
2.3. Safety instruction
2.4. Assembly Warnings
Symbol description
WARNING
Prior to installation, inspect the unit to ensure absence of any
transport or handling damage, which could affect insulation
integrity or safety clearances; failure to do so could result in
safety hazards.
Assemble the inverter per the instructions in this manual. Use
care when choosing installation location and adhere to
specified cooling requirements.
Unauthorized removal of necessary protections, improper
use, incorrect installation and operation may lead to serious
safety and shock hazards and/or equipment damage.
In order to minimize the potential of a shock hazard due to
hazardous voltage, cover the entire solar array with dark
material prior to connecting the array to any equipment.
Grounding the PV modules：The Growatt inverter is a
transformerless inverter. That is why it has no galvanic
separation. Do not ground the DC circuits of the PV modules
connected to the inverter. Only ground the mounting frame of
the PV modules. If you connect grounded PV modules to the
Growatt inverters, the error message "PV ISO Low".
Comply with the local requirements for grounding the PV
modules and the PV generator. GROWATT recommends
co n nec t ing the ge nera tor fram e and o t her el e ctr i call y
conductive surfaces in a manner which ensures continuous
conduction with ground these in order to have optimal
protection of the system and personnel.
CAUTION
2.5. Electrical Connection Warnings
Symbol description
DANGER
The components in the inverter are live. Touching live
components can result in serious injury or death.
Do not open the inverter except the wire box by qualified
persons.
Electrical installation, repairs and conversions may only be
carried out by electrically qualified persons.
Do not touch damaged inverters.
Danger to life due to high voltages in the inverter
There is residual voltage in the inverter. The inverter takes
20 minutes to discharge.
Wait 20 minutes before you open the wire box.
Persons with limited physical or mental abilities may only work
with the Growatt inverter following proper instruction and under
constant supervision. Children are forbidden to play with the
Growatt inverter. Must keep the Growatt inverter away from
children.

89
WARNING
CAUTION
Make all electrical connections (e.g. conductor termination,
fuses, PE connection, etc.) in accordance with prevailing
regulations. When working with the inverter powered on, adhere
to all prevailing safety regulations to minimize risk of accidents.
Systems with inverters typically require additional control (e.g.,
switches,disconnects) or protective devices (e.g., fusing circuit
breakers) depending upon the prevailing safety rules.
The Growatt Inverter converts DC Current from PV generator
into AC current. The inverter is suitable for mounting indoors
and outdoors.
You can use the AC current generated as follows:
Energy flows into the house grid. The consumers
connected,for example, household devices or lighting,
consume the energy. The energy left over is fed into the
public grid. When the Growatt is not generated any
energy, e.g., at night, the consumers which are
connected are supplied by the public grid. The Growatt
does not have its own energy meter. When energy is fed
into the public grid, the energy meter spins backwards.
House grid:
Energy is fed directly into the public grid. The Growatt is
connected to a separate energy meter. The energy
produced is compensated at a rate depending on the
electric power company .
Public grid:
2.6. Operation Warnings
WARNING
Symbol description
Ensure all covers and doors are closed and secure during operation.
Although designed to meet all safety requirements, some parts and
surfaces of Inverter are still hot during operation. To reduce the risk
of injury, do not touch the heat sink at the back of the PV-Inverter or
nearby surfaces while Inverter is operating.
Incorrect sizing of the PV plant may result in voltages being present
which could destroy the inverter. The inverter display will read the
error message“PV Voltage High!”
Turn the rotary switch of the DC Disconnect to the Off position
immediately.
Contact installer.
CAUTION
All operations regarding transport, installation and start-up,
including maintenance must be operated by qualified, trained
personnel and in compliance with all prevailing codes and
regulations.
Anytime the inverter has been disconnected from the power
network, use extreme caution as some components can retain
charge sufficient to create a shock hazard; to minimize
occurrence of such conditions, comply with all corresponding
safety symbols and markings present on the unit and in this
manual.
In special cases, there may still be interference for the specified
application area despite maintaining standardized emission
limit values (e.g. when sensitive equipment is located at the
setup location or when the setup location is near radio or
television receivers).In this case, the operator is obliged to take
proper action to rectify the situation.
Do not stay closer than 20 cm to the inverter for any length of
time.

10 11
3 Product Description
The Growatt inverters are grid-tied inverters which convert DC current generated
by PV modules into AC current and feed it into the public grid.
3.1. Overview
Symbol on the inverter
3.2. Type label
The type labels provide a unique identification of the inverter (The type of product,
Device-specific characteristics, Certificates and approvals). The type labels are
on the left-hand side of the enclosure.
Information
As the grid standards of many countries are in the process
of improving or upgrading, please refer to the label on the
machine for reference of the newest certificate.
Symbol Description Explanation
Tap symbol Setting the display operation
by tapping the LCD
Inverter status symbol Indicates inverter operation
status
U
xxxHz
Model Name
UDC max
IDC max
DC range
V
AC norm
f
AC norm
P
AC norm
I
AC norm
PF
Protection Degree
Operation Ambient
Temperature
xxxxxx
xxxV
xxxV
xxxxW
xxxA
xxxx
xxxx
xxx ~ xxx°C °C
xxxV~xxxV
xxxA
IEC62109 VDE0126-1-1 G83
GWaterproof breathable valve
Position
F
E
D
C
B
A
AC Output
PV input terminals
DC switch
State LED
LCD
The front enclosure lid
Description
G
H
ED
C
A
B
F
HRJ 45 Port

12 13
More details about the type label as the chart below:
Model Name
Max input DC voltage
Max input DC current
PV voltage range
AC grid frequency
Nominal AC output power
AC normal output current
Power factor
Environmental Protection
Rating
OperationAmbient
temperature
3.4. Transport and Store
3.4.1. Transportation
The inverter is thoroughly tested and inspected strictly before delivery. Our
inverters leave our factory in proper electrical and mechanical condition. Special
packaging ensures safe and careful transportation. However, transport damage
may still occur. The shipping company is responsible in such cases. Thoroughly
inspect the inverter upon delivery. Immediately notify the responsible shipping
company if you discover any damage to the packaging which indicates that the
inverter may have been damaged or if you discover any visible damage to the
inverter. We will be glad to assist you, if required. When transporting the inverter,
the original or equivalent packaging should be used, and the maximum layers for
original carton is seven as this ensures safe transport.
3.4.2. Storage of Inverter
If you want to storage the inverter in your warehouse, you should choose an
appropriate location to store the inverter.
AC nominal voltage
Growatt 750-S
450V
10A
50V-450V
50Hz/60Hz
750W
3.3A
0.8leading-0.8lagging
Ip65
-25...+60℃
230V
Growatt 1000-S
450V
10A
70V-450V
50Hz/60 Hz
1600W
6.9A
Ip65
-25...+60℃
230V
3.3. Dimensions and Weight
The unit must be stored in original package and desiccant must be left in the
package.
The storage temperature should be always between -25℃ and +60℃. And
the storage relative humidity can achieve to 100%.
If there are a batch of inverters needs to be stored, the maximum layers for
original carton as follow.
The maximum layers is 11 for Growatt 750-S-3000-S
After long term storage, local installer or service department of GROWATT
should perform a comprehensive test before installation.
3.5. The advantage of Inverter
Maximum efficiency of 97.6%.
Wide input voltage range from 50-550Vdc.
Integrated DC switch.
Sound control.
Multi communication pattern.
Easy installation.
Growatt 1500-S
450V
11A
70V-450V
50Hz/60 Hz
2000W
8.7A
Ip65
-25...+60℃
230V
Types
Height (H)
Width (W)
Depth (D)
Weight
Growatt 750-S
299 mm
271 mm
141 mm
6.4 kg
Growatt 1000-S
299 mm
271 mm
141 mm
6.4 kg
Growatt 1500-S
299 mm
271 mm
141 mm
6.4 kg
Growatt 2000-S
299 mm
271 mm
141 mm
6.4 kg
Growatt 2500-S
359 mm
271 mm
141 mm
9.1 kg
Growatt 3000-S
359 mm
271 mm
141 mm
9.1 kg
Model Name
Max input DC voltage
Max input DC current
PV voltage range
AC grid frequency
Nominal AC output power
AC normal output current
Power factor
Environmental Protection
Rating
OperationAmbient
temperature
AC nominal voltage
Growatt 2000-S
450V
11A
50V-450V
50Hz/60Hz
2000W
8.7A
0.8leading-0.8lagging
Ip65
-25...+60℃
230V
Growatt 2500-S
500V
12A
70V-500V
50Hz/60 Hz
2500W
10.9A
Ip65
-25...+60℃
230V
Growatt 3000-S
550V
13A
70V-550V
50Hz/60 Hz
3000W
13A
Ip65
-25...+60℃
230V

All electrical installations shall be done in accordance with the local and
national electrical codes. Do not remove the casing. Inverter contains no user
serviceable parts. Refer servicing to qualified service personnel. all wiring
and electrical Installation should be conducted by a qualified service
personnel .
Carefully remove the unit from its packaging and inspect for external damage.
If you find any imperfections, please contact your local dealer.
Be sure that the inverters connect to the ground in order to protect property
and personal safety.
The inverter must only be operated with PV generator. Do not connect any
other source of energy to it.
Both AC and DC voltage sources are terminated inside the PV Inverter.
Please disconnect these circuits before servicing.
This unit is designed to feed power to the public power grid (utility) only. Do
not connect this unit to an AC source or generator. Connecting Inverter to
external devices could result in serious damage to your equipment.
When a photovoltaic panel is exposed to light, it generates a DC voltage.
When connected to this equipment, a photovoltaic panel will charge the DC
link capacitors.
1Growatt inverter A
1AC connection plug B
2Mounting screws
C
1Installation & Operation Manual
D
Item Number Description Remarks
14 15
4 Unpacking
Thoroughly inspect the packaging upon received. If any damage to the carton is
visible, or if you find that the inverter unit is damaged after unpacking, please
notify the shipping company and SHENZHEN GROWATT NEW ENERGY
TECHNOLOGY CO.,LTD immediately.
Meanwhile please check the delivery for completeness and for visible external
damages of the inverter. If there are anything damaged or missing, please contact
your dealer. Don't dispose its original package. If you want to transport the
inverter, it is better to store the inverter into the original package.
After opening the package, please check the contents of the box. It should contain
the following, Please check all of the accessories carefully in the carton. If
anything missing, contact your dealer at once.
Installation 5
5.1. Safety instructions
Danger to life due to fire or explosion
Risk of burns due to hot enclosure parts
Mount the inverter in such a way that it cannot be touched inadvertently.
Despite careful construction, electrical devices can cause fires.
Do not install the inverter on easily flammable materials and where
flammable materials are stored.
Information
Though the packaging box of Growatt inverter is durable, please
treat the packing box gently and avoid dispose the packing box.
In this package, there are inverter, cystosepiment and carton
from inside to outside.
For the accessories, there are two kinds of configuration,
please refer to the inverter you receive.
Energy stored in this equipment's DC link capacitors presents a risk of
electric shock. Even after the unit is disconnected from the grid and
photovoltaic panels, high voltages may still exist inside the PV-Inverter. Do
not remove the casing until at least 5 minutes after disconnecting all power
sources.
Although designed to meet all safety requirements, some parts and surfaces
of Inverter are still hot during operation. To reduce the risk of injury, do not
touch the heat sink at the back of the PV-Inverter or nearby surfaces while
Inverter is operating.
C
BD
A

1716
5.2. Selecting mounting location
This is guidance for installer to choose a suitable installation location, to avoid
potential damages to device and operators.
The installation location must be suitable for the inverter's weight and
dimensions for a long period time. (Refer to section 3.3)
Do not install the inverter on structures constructed of flammable or
thermolabile materials.
Never install the inverter in environment of little or no air flow, nor dust
environment. That may derate the efficiency of the cooling fan of the inverter.
The Ingress Protection rate is IP65 which means the inverter can be installed
outdoors and indoors.
Do not expose the inverter to direct sunlight, in order to avoid the power and
efficiency derating caused by excessive heating.
The humidity of the installation location should be 0~100% without
condensation.
The ambient temperature should be below 40℃ to ensure optimal operation.
The installation location must be freely and safely to get at all times.
Vertically installation and make sure the connection of inverter must be
downwards. Never install horizontal and avoids forward and sideways
tilt.(Refer to drawings below)
Do not install the inverter near television antenna or any other antennas and
antenna cables.
Do not install the inverter in living area, the noise caused by the machine
may affect on daily life.
For security reasons, don’t install the inverter in place where the children
can reach.
Don't put any things on the inverter.Do not cover the inverter.
Inverter requires adequate cooling space. Providing better ventilation for
the inverter to ensure the heat escape adequately.
Do not expose the inverter to direct sunlight, as this can cause excessive
heating and thus power reduction.
Observe the minimum clearances to walls, other inverters or objects as
shown in the diagram below in order to guarantee sufficient heat dissipation.
Ambient dimensions of one inverter

18 19
Ambient dimensions of series inverters
There must be sufficient clearance between the individual inverters to
ensure that the cooling air of the adjacent inverter is not taken in.
If necessary, increase the clearance spaces and make sure there is enough
fresh air supply to ensure sufficient cooling of the inverters.
The inverter can’t install to solarization,drench,firn location. We suggest
that the inverters should be installed at the location with some cover or
protection
Please make sure the inverter is installed at the right place。The inverter
can’t install close to trunk
5.3. Mounting Inverter
5.3.1. Mounting bracket
DANGER
In order to avoid electrical shock or other injury, inspect existing
electronic or plumbing installations before drilling holes.
1.According to the following distance to drill two holes on the wall;
WARNING
Falling equipment can cause serious or even fatal injury, never
mount the inverter on the bracket unless you are sure that the
mounting frame is really firmly mounted on the wall after
carefully checking.
2.Install the explosion screw into the wall;

20 21
5.3.2. Mounting Inverter
Connecting the Second Protective Conductor
If the installation requires, the earth terminal can be used to connect a second
protective conductor or as equipotential bonding. This prevents touch current
if the original protective conductor fails.
Cable requirement:
Earthing cable cross-section: 3.332 mm² at maximum
5.4. Connect switch
Separate the Growatt inverter securely from the grid and the PV generators using
DC and AC Switch. You must provide an AC circuit breaker. If Growatt DC Switch
is included in the delivery of the Growatt inverter, it must be used for operating the
inverter.
5.5. Grounding
The Growatt 750-S-3000-S series are transformerless inverters. That is why it has
no galvanic separation. Do not ground the DC circuits of the PV modules
connected to the inverter. Only ground the mounting frame of the PV modules. If
you connect grounded modules to the inverter, the error message "PV ISO Low".
The inverter must be connected to the AC grounding conductor of the power
distribution grid via the ground terminal (PE)
WARNING
Because of the transformerless design, the DC positive pole and
DC negative pole of PV arrays are not permitted to be grounded.
5.6. Connect grid type
TN-C grid suitable
TN-S grid suitable
TN-C-S grid suitable
TT grid suitable
Referring to the following figure, make the inverter and explosion screw
matching,
Hang the inverter on the explosion screw

22 23
5.7. Electrical connection
5.7.1. Safety
DANGER
Danger to life due to lethal voltages!
High voltages which may cause electric shocks are present in the
conductive parts of the inverter. Prior to performing any work on
the inverter, disconnect the inverter on the AC and DC sides.
WARNING
Danger of damage to electronic components due to electrostatic
discharge.
Take appropriate ESD precautions when replacing and installing
the inverter.
5.7.2. Connection to the grid(AC)
Please connect AC cable obey the following procedures:
1.Switch off AC breaker and secure against being inadvertently switched back on.
About the AC breaker,please refer to the below form .
Types Max current output Suggested AC switch spec
4.Insert the stripped and bared conductors L,N,PE into the screw terminals with
sign L,N,PE on the socket element and tighten the screws firmly.
5.Push the threaded sleeve into the socket element; screw the pressure screw
tightly onto the threaded sleeve;
2. The grid connection is made using 3 conductors (L, N, and PE),We recommend
the following requirements for Growatt 1000-S/ Growatt 1500-
S/Growatt 2000-S/Growatt 2500-S/Growatt 3000-S.
Growatt 750-S
Model
Growatt 750-S
Growatt 1500-S
Area(mm2)
3.332
3.332
_(mm)
_2.05
_2.05
AWG no.
12
12
MAX.cable length(m)
124
50
6.Finally, insert the AC connection plug into the AC connection receptacle on the
inverter.
400Vac/10A
Growatt 1000-S 4.7A
Growatt 1500-S 400Vac/16A
7.8A
Growatt 2000-S 400Vac/16A
9.5A
Growatt 2000-S 3.332
_2.05 12 42
Growatt 3000-S 400Vac/16A
14.3A
Growatt 3000-S 3.332
_2.05 12 28
WARNING
You must install a separate single-phase circuit-breaker or other
load disconnection unit for each inverter in order to ensure that the
inverter can be safely disconnected under load.
NOTE: The inverter is equipped with integrated RCM(Residual
current operated monitor)and RCD(Residual current and protective
device) which are used for preventing from being electric shock. An
external built RCD in fact is not necessary .
If the network operator stipulate an external built RCD,you must
choose a residual-current protective device that triggers in the
event of residual current more than 300mA.
3.Remove the parts of the AC connection plug from the accessory bag.Guide the
pressure screw, sealing ring, threaded sleeve over the AC cable
Lock the housing Unlock the housing
Close the connector
Connect the connector
socket element threaded sleeve sealing ring pressure screw
Growatt 2500-S 400Vac/16A
11.9A
Growatt 2500-S 3.332
_2.05 12 34
400Vac/10A
Growatt 750-S 3.4A
Growatt 1000-S 3.332
_2.05 12 86

24 25
5.7.3. Connecting the PV array
5.7.3.1. Conditions for DC connection
The inverter has 1 independent string input.
The diagram drawing of DC side is shown as below, notice that the connectors are
in paired (male and female connectors). The connectors for PV arrays and
inverters are H4 connectors;
Requirements for the PV modules of the connected strings:
Same type
Same quantity of PV modules connected in series
CAUTION
If the inverter is not equipped with a DC switch but this is mandatory
in the country of installation, install an external DC switch.
The following limit values at the DC input of the inverter must not be
exceeded:
5.7.3.2. Connecting the PV array (DC)
DANGER
Danger to life due to lethal voltages!
Before connecting the PV array, ensure that the DC switch and AC breaker
are disconnect from the inverter.Never connect or disconnect the DC
connectors under load.
WARNING
Improper operation during the wiring process can cause fatal injury to
operator or unrecoverable damage to the inverter. Only qualified personnel
can perform the wiring work.
Risk of damage to the inverter.
If the voltage of the PV modules exceeds the maximum input voltage of the
inverter, it can be destroyed by the overvoltage. This will void all warranty
claims.Do not connect strings to the inverter that have an open-circuit
voltage greater than the maximum input voltage of the inverter.
WARNING
Check the connection cables of the PV modules for correct polarity and make sure that the
maximum input voltage of the inverter is not exceeded. At an ambient temperature over 10
℃, the open circuit voltage of the PV modules should not exceed 90% of the maximum input
voltage of the inverter. Otherwise, the maximum inverter input voltage may be exceeded at
low ambient temperatures.
T y p es
M ax c u r re n t i n p u t
G r ow a tt 7 5 0- S
1 0A
G r ow a tt 1 0 00 -S
1 0A
G r ow a tt 1 5 00 -S
1 0A
G r ow a tt 2 0 00 -S
11 A
G r ow a tt 2 5 00 -S
1 2A
G r ow a tt 3 0 00 -S
1 3A
5.7.4 Inverter demand response modes (DRMs,only for Australia)
This series inverter has the function of demand response modes,moreover, We
use RJ45 socket as inverter DRED connection.
5.7.4.1 RJ45 socket pin assignment
5.7.4.2 Method of asserting demand response modes
MODE
Rj45 socket
Asserted by shorting pins Requirement
DRM0
DRM5
DRM6
DRM7
DRM8
56Operate the disconnection device
Do not generate power
Do not generate at more than 50% of rated power
Do not generate at more than 75% of rated power
AND Sink reactive power if capabie
Increase power generation (subject to constraints
from other active DRMs)
15
25
35
45
Assignment for inverterscapable of
both charging and discharging
PIN
1DRM5
2DRM6
3DRM7
4DRM8
5RefGen
6COM/DRM0
7/
8/
1 → 8
Pin Assignments Front View
RJ45 Socket
12345678
RJ45 Plug

26 27
6 Commissioning
6.1. Parameters setting
Users can use sound control function to change the display language and
luminance of the display, enable auto-test function and choose utility model.
6.1 .1. Language setting
Before entering the ‘Set Language’ interface, you need to enter a password as
below:
6.1.2. Set luminance of LCD display
1. If you want to set luminance of LCD display, repeat the steps as described in
section 6.1.1.
2. When LCD displays ‘INPUT 123:123’, triple knock to enter the setting interface.
6.1.3. Set communication address
1. If you want to set communication address, repeat the steps as described in
section 6.1.1.
2. When LCD displays ‘INPUT 123:123’, triple knock to enter the setting interface.
6.1.4. Set Queensland grid voltage range
1. If you want to set Queensland grid voltage range , repeat the steps as
described in section 6.1.1.
2. When LCD displays ‘INPUT 123:123’, triple knock to enter the setting interface.
6.1.5. Run auto test function(only for Italy)
Single knock to make the display become bright → Single knock to “Enable Auto
test” →Double knock to enter “Waiting to start” →Single knock to start auto test. and
then waiting several minutes for the test result.
Setting…
INPUT 123:XXX
According to the LCD display,you need to input three numbers: 123.You should
finish several steps as below:
1. When the LCD stays bright, single knock to ‘Setting…’,and then double knock to
enter ‘INPUT 123:xxx’interface.
2. Double knock to make the first number flash, single knock to change the
number, and the first number you need to input is ‘1’. Double knock to enter the
second number while the first number was ‘1’.
3. When the second number is flashing ,single knock to change the number,and
the second number you need to input is ‘2’. Double knock to enter the last number
while the first number was ‘2’.
4. When LCD displays ‘INPUT 123:123’, triple knock to enter the setting interface.
Set Language
5. Single knock to “set language” →Double knock enter “language: English”
→ Single knock to select the language. After setting, you need to wait a few
seconds until the display becomes dark, then the setting will be saved.
Set LCD contrast
3. Single knock to “set LCD contrast” →Double knock to enter “LCD contrast 2”
→ Single knock to select the luminance. You also need to wait a few seconds
after selecting. When the display becomes dark, the change is saved.
COM Address:xx
3. Single knock to “COM Address: xx” →Double knock change the address to set
model →Single knock to set address. After selecting, you need to wait a few
seconds until the display becomes dark, then the change is saved.
Model: GTXXXXXX
3. Single knock to item “Model: GTXXXXXX” -> Double knock to enter “Normal
Volt range” -> Single knock to change it to “Qld Vmax 255V” -> wait until the
display become dark, then the inverter saved change.
NOTICE
This function is only for Ergon Energy area, Queensland, Australia.
Enable Auto test

6.2.1. Country selecting
6.2. Independent function option
Country/Regulation Name options
VDE0126-1-1 // 0
Germany //1
UK_G83 //2
Italy //3
France //4
Denmark //5
Belgium //6
Spain //7
Greece //8
Turkey //9
If the country you want to select is not in the above list, please
directly select VDE0126-1-1.
Netherlands select VDE0126-1-1.
NOTICE
Please finish the country selecting according to the following steps
A The LCD will quickly switch to and stay at the 'Please select' interface after
power on, as below:
B Single knock on the LCD, countries will vary from one to another along the
above list order. below acts as an example, and Germany is the second
selection.
C When you need to select any of these countries, you can Double knock to
enter the next interface. Here we select Italy as an example, as below:
D When the country arrives at Italy, Double knock to enter the two options 'YES'
and 'NO', and the cursor stays at 'NO' in default, as below:
E Single knock to select 'YES', as below:
F Double knock to confirm your selection, LCD will display 'Select OK' with the
country name in the below, as below:
28 29
Information
If you have ordered the inverter with specific country settings, the
parameters have been preset in factory and you don't need to
operate this step any more.
This series inverter in Hungary market has not country settings.
When the PV panels are connected and their output voltage is greater than 70Vdc
but the AC grid is not yet connected, inverter will start up automatically. If it is the
first time to power on the inverter after installation, you may need to select a
specific country.Otherwise, the interface will stay at the ‘Please Select’ interface
all the time. There are eleven options to select, as the list below.

30 31
if you still single knock at the interface as E, the cursor will go to
'NO' again as D, then if you double knock, the display will switch to
the interface as C.
Information
G When the selection is successful, the inverter will reboot automatically
If you have selected and confirmed an unwanted country neglectful,
please contact Growatt for specific software to clear and reset
again.
Information
6.2.2.Auto test
6.2.2.1.Spec of the CEI 0-21 SPI
SPI function：the integrated SPI consists of 4 voltage level protection and 2
frequency range protection. The protection logic is as follows:
6.2.2.2.Autotest
Connect the Inverter and the PC by RS232;
Power on the inverter, check the inverter com address, and wait the inverter to
connect to grid;
Open the PC software ShineBus, and select page “5 Auto Test”; set the PC com
port(COM) and the inverter com address(Inv Add);
Click button “Test” to test the SPI function;
Wait the test finish, there are 8 levels testing;
The test result data is saved in the “Auto test report of xxxxxx .txt” under the
Software install direction;

32 33
Test fail condition:
Condition Reason Suggestion
Test Stop Communication lose or inverter
occur other fault when testing
Check the communication or
check the inverter state
Test fail The trip value of the test result is
not in the limit of the spec
Check the grid state, make sure
the grid is stable, and retest
6.2.3. GFCI function
GFCI is short for Ground-Fault Circuit Interrupter which is used for preventing
from being electric shock. The inverter is equipped with integrated RCD (Residual
Current Protective Device) and RCM (Residual Current Operated Monitor). The
current sensor will detect the volume of the leakage current and compare it with
the pre-set value. If the leakage current is above the permitted range, the RCD will
disconnect the inverter from the AC load.
6.2.4. PV isolation detection
The ISO function a protection mechanism. The inverter measures the resistances
between both the positive pole and negative pole of PV panel and earth.
Either of the measured value is lower than the limit, the PV inverter will not
connect to grid, the output relay will stay open, and show 'PV isolation low'. The
limited value is determined by the standards. The firmware setting of our PV
inverters is 500Kohm.
The simplified principle of the isolation resistance measurement is described as
below:
6.3. LCD display
In the lower center of inverter there is the LCD display. We can check inverter
running status, etc. on the LCD screen. Items displayed can be changed by knock;
you can also change some inverter parameters by knock.
6.3.1. General LCD display
Starting-up display sequence , once the PV power is sufficient , inverter displays
information as shown in the flow chart as follow:
Power on LCD display
6.3.1.1. The first line of LCD
Standby When the input voltage falls to 70V,inverter
will display standby.The inverter will shut
down when input voltage is lower than 60V.
Connect in xxS System checking
Reconnect in xxS System checking
Power: xxxx.xW Inverter output power in normal mode.
DISPLAY CONTENT REMARK STATUS
Waiting When the input voltage is between 70V and
80V during start up, inverter will display
‘waiting’
Waiting
Connect OK Connecting to the gridNormal
Error: xxx System fault
Fault
Auto Testing Protecting function
Auto Test
Programming Programming Firmware update