Growatt 2500MTL User manual

Installation
&
Operation Manual
GROWATT NEW ENERGY TECHNOLOGY Co.,LTD
No.12 Building, Xicheng Industrial
Zone, Bao’an District, Shenzhen, P. R.China
+ 86 755 2747 1900
+ 86 755 2749 1460
[e-mail]
www.ginverter.com
T
F
E
W
GR - UM - 009 - 04
Growatt 2500MTL
Growatt 3000MTL

Introduction
1.1 Validity
1.2 Target Group
1.3 Product Overview
Unpacking
2.1 Unpacking and Inspection
Mounting
3.1 Selecting Mounting Location
3.2 Dimensions and Required Clearances
3.3 Mounting the Bracket
3.4 Mounting Growatt MTL
Electrical Connections
4.1 Wiring AC Output
4.2 Wiring DC Input
Directory
1
2
3
4
2.2 Information of Label
1.4 Safety
Country Selecting and
Commissioning
5
5.1 Country Selecting
5.2 Commissioning

The Growatt MTL series inverters are grid-tied inverters which convert DC current
generated by PV modules into AC current and feed it into the public grid. The
Growatt MTL series inverters are multi-string inverters with multi-MPP trackers,
which meant they are able to connect to different PV module arrays.
Introduction 1
1.1 Validity
1.2 Target Group
1.3 Product Overview
This installation guide contains installation, commissioning, communication, trouble
shooting and information of Growatt MTL series inverters:
Growatt 2500MTL
Growatt 3000MTL
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.
Contact
Display and Messages
7.1 LCD display
7.2 LCD control
7.3 Parameters Setting
8.1 ShineNet
8.2 ShineVision
8.3 Shine Pano
Communications
9.1 General question
9.2 Error Messages displayed on LCD
Trouble Shooting
Specifications
Growatt Factory
Warranty
7
8
9
10
11
12
With this installation guide, users are able to install and operate the Growatt MTL
inverters easily. This manual does not cover any details concerning about equipments
connected to the Growatt MTL. Store this manual where accessible at all times.
Notes
responsibilities to inform the users.
: For possible changes in this manual, Growatt New Energy Co., Ltd accepts no
1
Operation Modes
6.2 Normal Mode
6.4 Shutdown Mode
6.3 Fault Mode
6.1 Waiting Mode
6
8.4 ShineWebBox

Inverters Overview:
Front and Bottom Overview:
Fig 1.1
Fig 1.2
Grid-tied PV System Overview:
As the drawing shown above, a complete Grid-tied PV system consists of PV modules,
PV inverters, distribution, grid and other components. Moreover, PV inverters always
act as key components.
Fig 1.3
When designing a PV system contains Growatt MTL series inverters or any other
Growatt inverters, the system designing software Shine Design (please download
from Growatt FTP. ftp://113.106.58.169, user name: ftpguest, password: ftpguest)
will provide adequate supports.
Notes
capacity relative to ground of the modules is large, please contact Growatt New
Energy for technical support before installation.
: If PV modules of the PV system require POSITIVE or NEGATIVE GROUND, or the
1.4 Safety
Growatt MTL is designed for global consumers, and is in accordance with most of the
safety standards of various countries and regions.
Below is the brief introduction of GFCI function and isolation function.
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.
Input A
Input B
DC Breaker
DC Breaker
AC Breaker
GROWATT MTL Inverter
Energy meter Public grid
CE / TUV, EN50178, EN61000-6-2, EN61000-3-2, EN61000-6-3, EN61000-3-3,
VDE0126-1-1, IEC-62109, G83, VDE-AR-N4105, CEI 0-21 , AS4777, AS/NZS3100

Danger to life due to high voltages in the inverter!
All work on the inverter may be carried out by qualified personnel only.
The appliance is not to be used by children or persons with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction.
Children should be supervised to ensure that they do not play with the appliance.
Possible damage to health as a result of the effects of radiation!
DANGER!
CAUTION!
Image1
Image2
Possible damage to the PV modules as a result of Identification of String Failure!
The Growatt MTL Inverter is equipped with a system which recognizes total failure of
individual strings or part-strings.
CAUTION!
Comply with the local requirements for grounding the PV modules and the PV
generator.
Grounding the PV generator
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 5Mohm.
The simplified principle of the isolation resistance measurement is described as
Image1 and Image2.
Do not stay closer than 20 cm to the inverter for any length of time.
Growatt recommends connecting the generator frame and other electrically
conductive surfaces in a manner which ensures continuous conduction and ground
these in order to have optimal protection of the system and personnel.
Notes
and regulation.
: Operation and installation is required to be in compliance with the local laws
5
4

Unpacking 2
2.1 Unpacking and Inspection
Notes
packing box softly and avoid disposing the packing box.
: Though the packaging box of Growatt MTL is durable, please treat the
Before opening the packing box of Growatt MTL, please note that whether there are
any visible external damages.
Once open the packing box, please check the delivery for completeness and for any
visible external damages of the inverter. If there are anything damaged or missing,
please contact your dealer. Complete delivery should contain items as follow:
Item
A
B
C
D
E
F,G
Number
1
1
4
6
6
1
Description
Growatt MTL inverter
Mounting frame
Mounting screws
Safety-lock screws
Mounting frame screw sleeves
Installation & Operation Manual
2.2 Information of Label
The label contains information as below:
The inverter type/model (Model Name);
The certificates and approvals (Certificate Number and Logos at the bottom of the
label);
Specifications of the inverter (From UDCmax to Operation Ambient Temperature).
3Mounting
3.1 Selecting Mounting Location
This is guidance for installer to choose a suitable installation location, to avoid
potential damages to devices and operators.
Fig 2.1
Fig 2.2
67
B
E
C
D
A
The wall selected to install the inverter must be strong and firm
enough to support and bear the weight of the inverter for a long
period time. (Refer to Chapter 10 Specifications).
The location selected must be suitable for dimensions of Growatt
MTL. (Refer to 3.2 Dimensions and Required Clearances).
A
B
Model Name
GROWATT
PV G ri d In verter
UDC max
IDC max
UDC range
V
AC norm
f
AC norm
P
AC norm
I
AC norm
PF
Protection Degree
Operation Ambient
Temperature
**************
***V
**A/**A
***V~***V
***V
**Hz
****W
**A
1.0
IP65
-30~+60°C
G83
IEC62109 N4105
Model Name
GROWATT
PV G ri d In verter
Certificate Number
UDC max
IDC max
UDC range
V
AC norm
f
AC norm
P
AC norm
I
AC norm
PF
Protection Degree
Operation Ambient
Temperature
************
***V
**A/**A
***V~***V
***V
**Hz
****W
**A
1.0
IP65
-30~+60°C
AS 4777 & AS 3100
************

F
G
H
I
J
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, or
environment of dust. That may derate the efficiency of heat
dissipation, which will derate the conversion efficiency of inverters.
The Ingress Protection rate (IP level) is IP65 which means Growatt
MTL can be installed both indoors and outdoors.
Do not expose the inverter to direct sunlight, in order to avoid the
power and efficiency derating caused by excessive heating.
The humidity of location should be within 0~95% and without
condensation.
The ambient temperature of installation should be within -30℃
+60℃.
The installation location must be freely and safely to get for
operators or electricians at all times.
Vertically installation and make sure the connection of inverter is
downward. Never install horizontal and avoids forward and
sideways tilt, refer to drawing below.
K
L
M
Notice the minimum clearances of the inverter. (Refer to 3.2
Dimensions and Required Clearances).
Do not install Growatt MTL near television antenna or any other
antennas and antenna cables, for possible interferences of
inverter or cables.
Do not install Growatt MTL in living area, the noise caused by
inverter might affect on daily life.
For security reasons, DO NOT install Growatt MTL in place where
the children can reach.
N
3.2 Dimensions and Required Clearances
Dimensions and weight :
Types Height(H) Width(W) Weight/kg
2500MTL
3000MTL
152
152
360
360
15.6
15.6
Depth(D)
However, additional clearances are required to guarantee running and operation of
Growatt MTL inverters. Especially when several inverters are installed together, the
clearances between inverters and objects are necessary.
421
421
Fig 3.1
89
Table 3.1
E
C
D

Overview of the Bracket:
Steps:
Drill holes for screws while using the mounting frame as Fig 3.4. 4 holes for
Growatt 2500MTL/3000MTL.
Fix the mounting frame on the wall as Fig 3.4.
Notes
mounting frame is really firmly mounted on the wall after carefully checking.
: Never mount Growatt MTL on the bracket before you are sure that the
3.4 Mounting Growatt MTL
After the bracket is firmly mounted on the wall, then install Growatt MTL onto the
bracket.
Hang Growatt MTL onto the bracket through the match hooks on bracket and
the back of Growatt MTL.
Rise up the Growatt MTL a little higher than the bracket. During the process
please maintain the balance of Growatt MTL.
Fig 3.3
Fig 3.4
Fig 3.5
10
3.3 Mounting the Bracket
To install Growatt MTL on the wall, installers should mount the bracket to the wall
firmly as the first step.
Fig 3.2
11

Cable requirements:
Model _(mm) Area(mm²) AWG no.
2500MTL
3000MTL
_2.05
_2.05
3.332
3.332
12
12
Assemble the connector as figures shown below;
4.2 Wiring DC Input
The open circuit voltage of each sting should never exceed 500 Vdc.
The diagram drawing of DC side is shown as Fig 4.2, note that the connectors
are in paired (male and female connectors). The connectors for PV arrays and
inverters are MC (multi-connector) connectors;
Notes
output, please make sure that the AC breaker has been turned off (open).
: The connector must be screwed firmly. Before you operate and wire the AC
Fig 4.1
12 13
Table 4.1
Connect the positive and negative terminal from the PV panels to positive and
negative terminal on the PV inverter. The maximum string currents are varying
from different inverter types;
4 Electrical Connections
4.1 Wiring AC Output
Measure the public grid voltage and frequency (Voltage: 230 Vac; Frequency:
50Hz/60Hz; in single phase).
Open the breaker or fuse between the PV inverter and utility.
Connect cables to relative bolts shown in figure below, specifications of cables
must meet the requirements shown in the table follows;
Type Max. current
2500MTL
3000MTL
10A/10A
10A/10A
Table 4.2
Fig 4.2

Cable requirements:
Model _(mm) Area(mm²) AWG no.
2500MTL
3000MTL
_2.05
_2.05
3.332
3.332
12
12
Notes:
Current.
Under no circumstances could the total circuit current exceed the Max.
Notes:
treat the terminal carefully.
To reduce the risk of electric shock, avoid touching the live components and
14 15
Table 4.3
Country Selecting and Commissioning 5
When the PV panels are connected and their output voltage is greater than 100Vdc
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.
*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.
Country/Regulation Name options
VDE0126-1-1
Germany
UK_G83
Italy
France
Denmark
Belgium
Spain
Greece
Turkey
Hungary
// 0
// 1
// 2
// 3
// 4
// 5
// 6
// 7
// 8
// 9
// 10
Please finish the country selecting according to the following steps:
The LCD will quickly switch to and stay at the ‘Please select’ interface
after power on, as Fig 5-1-1.
A
Single knock on the LCD, countries will vary from one to another along
the above list order. Fig 5-5-2 acts as an example, and Germany is the
second selection.
B
Fig 5-1-1
Fig 5-1-2
Note: If the country you want to select is not in the above list, please directly select
VDE0126-1-1.
5.1 Country Selecting