Growatt MID 10KTL3-X User manual

Shenzhen Growatt New Energy Technology CO.,LTD
No.28 Guangming Road, Shiyan Street, Bao’an District,
Shenzhen, P.R.China
No.28 Guangming Road, Shiyan Street, Bao’an District,
Shenzhen, P.R.China
[phone]
www.ginverter.comwww.ginverter.com
T
E
W
[e-mail]@ginverter.com
[phone]
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Manual
Growatt New Energy
Installation
Operation Manual
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GR-UM-160-A-00GR-UM-160-A-00

Index
1 Notes on this Manual
2 Introduction
3.1 Appearance overview
3.2 Dimensions
3.3 Storage environment
2.1 Foreword
2.2 Applicable personnel
2.3 Product overview and features
2.4 Safety instructions
1.1 Validity
1.2 Target Group
1.3 Additional information
3 Product Description
4 Unpacking and Inspection
5 Installation
5 1 Basic installation requirements
5.2
5.3
.
Mounting wall mount
Installing the inverter

6.1 Safety
6.2 AC side wiring
6.3 DC side wiring
6.4 Connecting signal line
13 1 Error message
13 2 Syetem error
.
.
14 1 Parameter
14 2 Torque
14.3 Annex
.
.
6 Inverter Wiring
13 Troubleshooting
7 Debugging
14 Specification
8.1 Normal mode
8.2 Failure mode
8.3 Shutdown mode
9.1 Boot display
9.2 OLED display wake up
9.3 Touch operation
11.1 Start the inverter
11.2 Shut down the inverter
8 Operating Mode
15 Contect us
9 OLED Display and Touch
Buttons
11 Start the Inverter
10 Communication and
Monitoring
12 Fan Maintenance
10.1 RS485
10.2 DRM
10.3 USB-A

1.1 Validity
This manual describes the assembly, installation, commissioning and maintenance of the
following Growatt Inverter model:
MID 10KTL3-X
MID 12KTL3-X
MID 15KTL3-X
MID 17KTL3-X
MID 20KTL3-X
MID 22KTL3-X
MID 25KTL3-X
This manual does not cover any details concerning equipment connected to the MID TL3-
X and ( e.g. PV modules). Information concerning the connected equipment
is available from the manufacturer of the equipment.
MID 6KTL3-XL
MID 8KTL3-XL
MID 10KTL3-XL
MID 11KTL3-XL
MID 12KTL3-XL
MID TL3-XL
This manual is for qualified personnel. Qualified personnel 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 Notes on this Manual
1.2 Target Group
1.3 Additional Information
Find further information on special topics in the download area 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, GROWATT NEW ENERGY
TECHNOLOGY CO.,LTD accepts no responsibilities to inform the users.
www.ginverter.com
1.2 Foreword
This manual will provide detailed product information and installation instructions for
users of Shenzhen Growatt New Energy Co., Ltd. (hereinafter referred to as Growatt New
Energy) MID TL3-X series PV inverters. Please read this manual carefully before using this
product. Any changes to this manual by Growatt New Energy will not be notified to the
user.
2.2 Applicable Personnel
The inverter must be installed by a professional electrician qualified by the relevant
department. By reading this manual in detail, the installer can install the MID TL3-X series
inverters correctly and quickly, and can perform troubleshooting and communication
system setup.
If there are any problems during the installation process, the installer can log on to
www.growatt.com to leave a message or call our 24-hour service number: 400-833-
9981.
2.3 Product Overview and Features
2.3.1 Product overview
The Growatt series of photovoltaic inverters are used to convert the direct current
generated by photovoltaic panels into alternating current and deliver them to the grid in
three phases. The Growatt MID TL3-X and MID TL3-XL series inverters can be connected
to two strings and have two maximum power tracking point trackers, so it is suitable for
connecting two different arrays of panels.
position
description
A
Solar panel
B
DC circuit breaker
C
Inverter
D
AC circuit breaker
E
Energy meter
F
Utility grid
As shown in Figure above, a complete PV grid-connected system includes PV modules,
PV inverters, public grids, and other components. In photovoltaic module systems,
photovoltaic inverters are the key component.
Note: If the selected PV module requires the positive or negative grounding, please
contact Growatt for technical support before installation.
2 Introduction
fig2.1 Connecting to the grid
MID 10KTL3-X
MID 6KTL3-XL MID 12KTL3-X
MID 8KTL3-XL MID 15KTL3-X
MID 10KTL3-XL MID 17KTL3-X
MID 11KTL3-XL MID 20KTL3-X
MID 12KTL3-XL MID 22KTL3-X
MID 25KTL3-X

4
3
2.4 Safety Instructions
1) Please read this manual carefully before installation. If the equipment is not installed
according to the instructions in this manual, or if the equipment in the manual is
ignored, the company has the right to not guarantee the quality;
2) All operations and wiring, please operate by professional electrical or mechanical
engineers;
3) When installing, please do not move the other parts inside the chassis except the
terminal block;
4)All electrical installations must comply with local electrical safety standards;
5) If the machine requires maintenance, please contact the local designated system
installation and maintenance personnel;
6) The use of this machine for grid-connected power generation requires the permission
of the local power supply department;
7) When installing PV modules during the day, use opaque materials to cover the PV
modules. Otherwise, in the sunlight, the voltage at the component terminals is high,
which poses a personal danger.
Make sure that the input DC voltage does not exceed 550V under
any circumstances. Higher input voltages may permanently damage
the machine and cause other damage, in which case the company
does not warrant and assumes any responsibility.
During the operation of the machine, the surface temperature of
the outer casing is high. Please carefully touch the outer casing to
prevent burns.
Danger
Warning
2.4.1 Sign convention
Sign
Explanation
High voltage danger
Plammable and explosive
High temperature
Wait 5 minutes after power off to ensure the machine is fully
discharged
Safety ground
DC
AC
Read the manual carefully
2.3.2 Product features
The characteristics of the inverter are as follows:
Dual independent maximum power point tracking
Built-in DC switch
Compatible with RS485/Wifi / GPRS / 4G communication
200V-1000V input voltage range
Maximum efficiency up to 98.65%
OLED display
Touch button
Protection level IP65
Weighs only 23kg
Easy installation

6
5
3 Product description
3.1 Appearance Overview
K
The appearance instructions are as follows:
Numbering
name
A
DC switch
B
PV input terminal
C
COM port
D
COM port(optional)
E
USB port
F
Ground terminal
G
AC output terminal
H
LED indicator
I
OLED display
J
Touch button
K
External fan
Description of the identification on the inverter：
Identification
Description
Explanation
Knock mark
Touch button: we can switch OLED display and
set parameters by touch.
Inverter status
identification
Indicates the current operating state of the
inverter.
red: fault
green: normal operation
Flashing red light: warning
Flashing green light: Update program
3.2 Dimensions
Size and weight:
Model
Height (H)
Width (W)
Depth (D)
Weight
MID 6-12KTL3-XL
525mm
394mm
221mm
23kg
MID 10-25KTL3-X
525mm
394mm
221mm
23kg
3.3 Storage Environment
If you want to store the inverter in the warehouse, you must choose a suitable location
for the inverter.
ØEquipment must be stored in its original packaging.
ØStorage temperature should always be between -25 ° C and + 60 ° C, storage relative
humidity is less than 90%.
ØIf you need to store a batch of inverters, the maximum number of layers in the
original carton is 4.
fig3.1 Appearance overview
figure3.2 Dimensions

78
4 Unpacking and Inspection
Before opening the inverter package, please check the outer packaging for damage.
After unpacking, check the inverter for damage or missing accessories. In the event of
damage or missing accessories, please contact your dealer.
Numbering
Description
Quantity
A
Inverter
1
B
Wall bracket
1
C
quick guide
1
D
AC Waterproof cover
1
E
Collector (optional)
OPT
F
COM port signal connector
2
G
Self-tapping screw
4
H
Plastic expansion tube
4
I
PV+/PV- Terminal (25k model 5/5PCS)
4/4
J
PV+/PV- Metal terminal (25k model 5/5PCS)
4/4
K
Safety screw
1
L
Signal connector unloading tool
1
M
PV Terminal removal tool
1
N
14-6 O-type terminal
6
O
Fixed AC waterproof cover M4*10 screw
4
*
Warranty card
1
*
A copy of the business license
1
*
Certificate
1
*
Packing List
1
*
CQC report and certificate
1
Installation 5
5.1 Basic installation requirements
ØThe wall on which the inverter is mounted must be sturdy and can withstand the
weight of the inverter for a long time (refer to the specifications in Chapter 12 for the
weight of the inverter);
ØThe installation location must match the size of the inverter;
ØDo not install the inverter on a building constructed of flammable or heat-resistant
materials;
ØInstall the inverter in an eye-view orientation to facilitate inspection of the OLED
display and maintenance work;
ØThe machine's degree of protection is IP65 and can be installed indoors and outdoors;
ØIt is not recommended to expose the inverter directly to strong sunlight to prevent
overheating and cause power derating;
ØThe humidity of the installation environment should be between 0 and 90%;
ØThe ambient temperature around the inverter should be between -25 ° C ~ 60 ° C;
ØThe inverter can be mounted on a plane that is tilted vertically or backwards.
Please refer to the following figure:
ØIn order to ensure the normal operation of the machine and the convenience of
personnel operation, please pay attention to provide sufficient clearance for the inverter.
Please refer to the figure below:
Direction
Minimum clearance (mm)
Above
300
Under
500
Both sides
500
Forward
300
fig5.1 Installation diagram
N

10
9
fig5.2 Mounting dimensions for an inverter
fig5.3 Mounting dimensions for multiple inverters
ØDo not install the inverter on the TV antenna, other antennas or antenna cables;
ØDo not install the inverter in the living area;
ØDo not install the inverter where children can reach it;
ØThe inverter should be installed in a sheltered and protected location such as cool,
rain-proof;
fig5.4 Installation Environment
ØMake sure that the inverter is installed in a suitable place and is not allowed to be
installed in a closed box;
fig5.4 Closed box
ØIn order to reduce the inverter load and extend the life of the inverter due to direct
sunlight, we recommend installing a awning. The distance between the awning and the
inverter is as follows:
fig5.5 Awning
5.2 Mounting wall mount
5.2.1 Mounting wall mount
To prevent electric shock or other damage, be sure to check the wall
for power or other piping before opening the hole in the wall.
Danger
fig5.6 Wall mount specification

Danger
Warning
12
11
Secure the wall mount as shown, do not let the screws flush with the wall, instead expose
2 to 4 mm.
fig5.7 Wall mount installation diagram
5.3 Installing the inverter
Note: Before installing the inverter, you must first make sure that the wall mount is firmly
fixed to the wall.
steps:
1. Hang the inverter on the wall mount and keep the inverter balanced when hanging.
2. To ensure that the inverter can be securely attached to the wall, secure the side of the
inverter with the M5 safety screw on the left.
fig5.8 Inverter wall hanging diagram
Inverter Wiring 6
6.1 Safety
A high voltage in the conductive part of the inverter may cause an
electric shock. Therefore, when performing any installation work
on the inverter, make sure that the AC and DC sides of the inverter
are powered off.
Static electricity may cause damage to the electronic components
of the inverter. Antistatic measures should be taken during the
replacement or installation of the inverter.
Moisture and dust penetration can damage the inverter.
ØMake sure the cable connector is securely tightened.
If the cable connector is not installed correctly, the inverter
may be damaged by moisture and dust. All warranty claims are
invalid.
Ø
Note
6.2 AC side wiring
Before making electrical connections, make sure that the DC
switch of the inverter is in the "OFF" state and that the AC side is
open, otherwise the high voltage of the inverter may be life-
threatening.
Ø
Ø
Ø
Each inverter must be independently installed with an AC
circuit breaker, and multiple inverters are prohibited from sharing.
Do not use a single core wire at the inverter output.
ØIt is forbidden to use aluminum wire as the output cable.
Please ensure that the output line is well connected before
turning on the inverter. Ignoring the above warnings may damage
the machine or cause other losses. In this case, the company has
the right not to carry out the warranty, or bear any responsibility
and related expenses.
Moisture and dust penetration can damage the inverter.
Make sure the cable connector is securely tightened.
If the cable connector is not installed correctly, the inverter
may be damaged by moisture and dust. All warranty claims are
invalid.
Ø
Ø
Danger
Warning
Note
Residual current protection device:
Since the inverter itself has a high-precision residual current detecting device, it is not
recommended to install a switch with leakage protection in the system. If for some
special reason, it must be installed with leakage protection between the inverter output
and the grid. For the switch, please install the B-type leakage protection switch of
300mA or more. When multiple leakage protection switches are installed in the system,
the zero line sharing is prohibited. Otherwise, the leakage protection function may be
triggered by mistake, causing the switch to trip.

14
Preparation before wiring：
Connect the protective ground wire (PE)
Connect the inverter to the grounding bar through the protective earth (PE) to achieve
grounding protection.
Ø
Ø
Good grounding is good for resisting surge voltage surges and
improving EMI performance. Therefore, before connecting AC, DC,
and communication cables, you need to ground the cable first.
For a stand-alone system, simply ground the PE cable; for a
multi-machine system, connect all the PE cables of the inverter to
the same grounding copper bar to ensure equipotential bonding.
fig6.1 Grounding diagram
ØMeasuring the voltage and frequency of the public grid (voltage: AC 230V;
frequency: 50Hz)
The recommended specifications for the AC output switch are as follows:
Inverter model
Switch specification
Inverter model
Switch specification
MID 6KTL3-XL
25A/127V
MID 8KTL3-XL
32A/127V
MID 10KTL3-XL
40A/127V
MID 11KTL3-XL
40A/127V
MID 12KTL3-XL
50A/127V
MID 10KTL3-X
32A/230V
MID 12KTL3-X
40A/230V
MID 15KTL3-X
40A/230V
MID 17KTL3-X
40A/230V
MID 20KTL3-X
40A/230V
MID 22KTL3-X
50A/230V
MID 25KTL3-X
50A/230V
AC connection steps:
1. The five wires (A, B, C, N, and PE wires) connected to the grid are passed through an
AC shield and then coiled to the O / U terminal.
fig6.2 AC output line crimp terminal
13
1. Lock the AC cable to the corresponding AC terminal.
fig6.3 AC terminal wiring
2. Lock the shield on the inverter frame and finally tighten the shield hole.
fig6.4 AC lock waterproof cover
Recommended line length:
Wire
cross
section
Maximum wire length
MID 6-8K
TL3-XL
MID 10-11K
TL3-XL
MID 12K
TL3-XL
MID 10-15K
TL3-X
MID 17-20K
TL3-X
MID 22-25K
TL3-X
10mm²
50m
40m
30m
50m
40m
30m
16 mm²
60m
50m
35m
60m
50m
35m

15 16
6.3 DC side wiring
Ø
Ø
Ø
When the sun shines on the panel, voltage will be generated.
The high voltage after the connection may cause life-threatening.
Therefore, before connecting the DC input line, the panel should be
shielded with opaque material before operation, and the inverter is
ensured. The DC switch of the unit is in the "OFF" state, otherwise
the high voltage of the inverter may be life-threatening.
To avoid electric shock, do not touch the live parts and carefully
connect the terminals.
Make sure the AC switch is disconnected before wiring.
Please ensure that the following conditions are met, otherwise it may
cause fire hazard or damage to the inverter. In this case, the company
does not carry out warranty and assumes any responsibility.
ØThe maximum open circuit voltage of each string of PV modules
shall not exceed 1100Vdc under any conditions.
ØThe PV modules connected in series in the PV string are all of
the same specification type.
ØThe maximum short-circuit current of each PV string shall not
exceed 25A under any conditions.
ØThe total output power of all PV strings must not exceed the
maximum input power of the inverter.
ØIn ord e r to op t i mize the s ystem configurati o n , i t is
recommended to connect the same number of PV modules with two
inputs.
ØIf the inverter output is directly connected to the grid (ie the
output side is not connected to the low frequency isolation
transformer), make sure that the PV string is not grounded.
ØIf the inverter is for a specific model of the thin-film battery
pack (PV-ground), please turn on the low-frequency isolation
transformer after the output is connected, otherwise the inverter will
be damaged.
Ø If it is measured that there is a stable non-zero DC voltage
between the positive pole and the ground of the PV string, it
indicates that an insulation fault has occurred at a certain position in
the PV string, and it is necessary to ensure that the fault is repaired
before continuing the wiring.
Moisture and dust penetration can damage the inverter.
Make sure the cable connector is securely tightened.
If the cable connector is not installed correctly, the inverter may
be damaged by moisture and dust. All warranty claims are invalid.
Ø
Ø
Danger
Warning
Note
The MID series inverter has two independent inputs, as shown below:
fig6.5 PV terminal
AC
Note: MID 25KTL3-X model MPPt2 is 3 sets of PV input.
The selection of PV modules should pay attention to the following points:
The PV modules of each PV string are of the same specification.
The PV modules of each PV string are connected in series by the same number.
Ø
Ø
Ø
Ø
Before connecting the panel, please make sure that the DC input
polarity is correct, that is, the positive pole of the PV module is connected
to the DC input terminal of the inverter marked “+”, and the negative pole
is connected to the DC input terminal marked “-”.
The maximum DC input current and voltage of the inverter must not
exceed the following limits:
Model
Single maximum input
current
Maximum input voltage
MID 6-12KTL3-XL
25A
1100V
MID 10-22KTL3-X
25A
1100V
MID 25KTL3-X
25A/37.5A
1100V
Note
Connecting DC terminal:
Cables
Cables
Positive metal terminal Positive connector
Negative connector
Negative metal terminal
4~6mm²
4~6mm²
fig6.6 Quick installation instructions

17 18
6.4 Connecting signal line
The MID series inverter has an 8Pins signal connector, and the client signal line port is as
follows:
fig6.7 Quick installation instructions
1.Strip the cable 10mm through the waterproof gland, thread the sleeve, and tighten the
screws. Make sure the cable is well connected.
fig6.8 Quick installation instructions
2.Push the threaded sleeve into the socket and tighten the waterproof gland.
fig6.9 Quick installation instructions
Ka
3.Dock the client to the inverter plug until both are tightly locked to the inverter.
The inverter side
Ka
fig6.10 Quick installation instructions
Disassemble the signal connector
1.Press the fastener and pull it out of the inverter.
fig6.11 Quick installation instructions
The inverter side
2.Insert the H-tool and pull it out of the socket.
fig6.12 Quick installation instructions

19 20
7 Debugging
1) Close the DC switch on the inverter. As long as the input DC voltage is greater than
250V, the inverter display will display the following message: There is no AC connection
error, the inverter LED will turn red.
If other information is displayed, please refer to Chapter 9. If you encounter problems
during the debugging process, please contact customer service.
2) Close the circuit breaker or switch between the inverter and the grid. The inverter
starts the self-test countdown. After the self-test is normal, it will be connected to the
grid.
3) In normal operation, the leaves of the inverter indication window will turn green.
4) Complete debugging.
8 Operating Mode
8.1 Normal mode
In this mode, the inverter works normally.
When the DC voltage is greater than 250V, the energy is sufficient and the grid
voltage frequency meets the requirements of grid connection, the inverter converts the
energy of the solar panel into an AC input grid, and the green LED lights up.
When the DC voltage is lower than 180V, the inverter will automatically disconnect
from the grid and exit the normal operation mode. When the input voltage reaches the
requirement again and the grid voltage returns to normal, the inverter will automatically
connect to the grid.
Ø
Ø
8.2 Failure mode
The inverter control chip monitors and adjusts the status of the system in real time. When
the inverter monitors any unexpected conditions, such as system failure and inverter
failure, the fault information will be displayed on the display. In the fault mode, the
inverter indicates The leaves of the window turn red and the inverter output is
disconnected from the grid.
When the light is weak or there is no sunlight, the inverter will automatically stop
running. When in the shutdown mode, the inverter basically does not consume the
energy of the grid or solar panels, and the inverter display and LED lights are turned off.
8.3 Shutdown mode
The OLED display can display the operating status of the inverter and various parameter
information. The touch panel can be used to switch the display interface of the inverter
and set the inverter parameters.
OLED Display and Touch Buttons 9
9.1 Boot display
9.1.1 The inverter information interface is as follows
(The dark blue arrow is click--the next page, the red arrow is the double-click--the sub-
menu enters, the blue arrow is the triple-click--back)
POWER
54.6w
Daily
0.8kwh
Total
54.6w
AC
225.7V 50.0Hz
PV1
3.0V 0.0W
PV2
3.0V 0.0W
Energy storage
information
Parameter
settings
More
information
General/Advanced
settings
Model：
A0B1D0T0PFU8M6S1
Firmware Version
Vaaa33
9.1.2 Parameter setting (general settings)
General
settings
Language
settings
Chinese
Address
setting
001
Date setting
16:39:50
Date setting
2019-06-12
Address
setting
001
Date setting
2019-06-12
Date setting
2019-06-12
Date setting
2019-06-12
Date setting
16:39:50
Date setting
16:39:50
Date setting
2019-06-12

21 22
9.1.3 Parameter setting (advanced setting)
Advanced
settings
Password
111
Password
111
Password
N11
Password
111
Password
1N1
Password
111
Password
11N
Voltage level
Anti-backflow
function
OFF ON
dynamometer
OFF ON
Factory
settings
0
1
2
Anti-backflow
function
OFF ON
Anti-backflow
function
OFF ON
Electric
CT
Zero ground
detection
Prohibited
Off-grid
setting
Prohibited
Energy storage
setting Grid charging
Time period
setting
Manual off-grid
Prohibited
dynamometer
OFF ON
dynamometer
OFF ON
Zero ground
detection
Prohibited
Zero ground
detection
Open
Off-grid
setting
Prohibited
Manual off-grid
Prohibited
Manual off-grid
Enable
Password
111
Password
111
Password
N11
Password
111
Password
1N1
Password
111
Password
11N
Prohibited
Enable
Gridprio 09-
13
Time1:Enable
Loadprio 09-
13
Time1:Enable
Batprio 09-13
Time1:Enable
Gridprio 09-
13
Time1:Enable
Gridprio 09-
13
Time1:Enable
Gridprio 09-
13
Time1:Enable
Gridprio 09-
13
Time1:Disable
Gridprio 09-
13
Time2:Enable
Loadprio 09-
13
Time2:Enable
Batprio 09-13
Time2:Enable
Gridprio 09-
13
Time2:Enable
Gridprio 09-
13
Time2:Enable
Gridprio 09-
13
Time1:Enable
Gridprio 09-
13
Time1:Disable
Time OutRang!
Wrong
Password
In
settings...
Successful
setup
Electric
CT
Off-grid
setting
Enable
Country/Region
VDE0126
Country/Region
VDE0126
Country/Region
G99
Country/Region
N4105
Country/Region
G98
Country/Region
Ireland
Country/Region
EN50438
Country/Region
Belgium
Country/Region
Demark
Country/Region
Sweden
Country/Region
Norway
Country/Region
France
NO
YES
NO
YES
The main settings are as follows:
General settings
Setting item
Language settings
Address setting
Date setting
Time setting
Advanced settings(requires password)
Setting item
Country/Region
Voltage level
Anti-backflow
function
Zero ground
detection
Off-grid setting
Manual off-grid
Energy storage
setting
Other function
settings
Reset
After the inverter works normally for 5 minutes, the OLED display will be automatically
turned off. At this time, the OLED has no display, indicating that the leaf of the window is
green, and it is necessary to view the display data or perform setting to enable the OLED
to be redisplayed by touch operation.
9.2 OLED display wake up
9.3 Touch operation
The machine has a touch button and functions as follows:
① Touch once: switch function, turn to the next page or select the switch option in the
setting item;
② Touch twice in succession: Confirm function, enter setting item or confirm setting;
③ Touch three times in succession: return/exit function, return to the previous menu or
exit the current setting item;
④ Long press 5S: power-up country selection; data clear initial value;

24
23
10.1 RS485
Serial
number
Function
Serial
number
Function
1
DRY contact +
2
DRY contact -
3
RS485A1+
(Signal for monitor)
4
RS485B1-
(Signal for monitor)
5
AntiReFlux-A
(RS485A for meter)
6
AntiReFlux-B
(RS485B for meter)
10.2 DRM
Don't disconnect the DC connector while the inverter is connected to the
grid.
10 Communication and Monitoring
This series of inverters provides two RS485 ports. You can monitor one or more inverters
via RS485. Another RS485 port is used to connect to a smart meter (single machine anti-
backflow function). The function of each pin is as follows:
10.3 USB-A
In addition to RS485 communication function, this series of inverters also have DRM
communication function. The hardware interface is the same as 485. The functions of
each pin are as follows:
USB-A port is mainly used to connect monitoring module or firmware update：
We can connect the external optional monitoring modules,
such as Shine WIFI-X, Shine 4GX, Shine LAN-X, etc. to
the USB interface for monitoring.
Steps for installing the monitoring module: Make sure △ is on the front side, then insert
the collector and tighten the screws.
Serial
number
Function
Serial
number
Function
1
DRM1/5
(Communication signal)
2
DRM2/6
(Communication signal)
3
DRM3/7
(Communication signal)
4
DRM4/8
(Communication signal)
5
REF
6
COM
The inverter side
The inverter side
The inverter side
The inverter side
Remove
▲up
Install
1. Close the inverter AC circuit breaker.
2. Close the DC switch, when the input PV voltage is higher than 250Vdc, and the
inverter will start automatically.
Start and Shut Down the Inverter 11
11.1 Start the inverter
11.2 Shut down the inverter
Steps to turn off the inverter:
1. Disconnect the AC circuit breaker to prevent the inverter from starting again;
2. Turn off the DC switch;
3. Check the operating status of the inverter;
4. Wait until the LED and OLED display are off, indicating that the inverter is turned off.
Danger
Fan Maintenance 12
●Must be operated by the relevant electrical professional and
follow the instructions.
●Be sure to disconnect the DC and AC switches for at least 10
minutes before operating to avoid danger.
●Please perform all operations after power off.
●Do not use a gas pump to clean the fan, as this may cause
damage to the fan.
Danger
Warning
When the MID 10-25KL3-X series inverters work in high
temperature environment, good ventilation and heat dissipation can effectively reduce
the probability of load reduction. The inverter is equipped with a cooling fan. When the
external temperature is too high, the fan works to reduce the external temperature. If the
inverter has low output due to excessive external temperature, the following are possible
causes and countermeasures.
●The fan is clogged or there is too much dust on the heat sink. under this circumstance ,
please clean the fan, fan cover or heat sink.
●The fan is damaged and the fan needs to be replaced.
●Poor ventilation of the inverter installation position, according to the basic installation
requirements, choose the appropriate installation location.
MID 6-12KL3-XL and

25 26
Fan cleaning replacement steps
1. Before cleaning or replacing the fan, please make sure that the DC side and AC side of
the inverter are disconnected.
1) Turn off the DC side switch.
2) Remove the DC side terminal (user needs to use the tool to disconnect the DC
connection terminal).
3) Disconnect the AC side switch.
2. First remove the fan fixing plate screw with a screwdriver.
fig12.1 Remove the fan
3. Disconnect the fan connector, remove the fan fixing plate screw with a screwdriver,
and finally remove the fan.
fig12.2 Remove the fan
4. Clean the fan, fan net and heat sink or replace the fan.
1) Clean the heat sink with a gas pump and clean the fan and fan net with a brush or a
damp cloth.
2) Remove the fan and clean it separately if necessary.
3) Use a Phillips screwdriver to remove the fan that needs to be replaced.
4) Replace with a brand new fan.
5.Reinstall the fan mounting plate and inverter.
Troubleshooting 13
PV inverters sometimes do not work properly, we recommend the following solutions to
eliminate common faults. The table below helps the technician understand the problem
and take action.
13.1 Error message
When a failure occurs, an error message will be displayed on the OLED screen. Faults
include system faults and inverter faults.
In some cases, you may be advised to contact Growatt, please provide the following
information.
Information about the inverter:
Serial number
Model
Error message on OLED
a short description of the problem
Grid voltage
DC input voltage
Have you ever had this problem in the past?
What are the environmental conditions at the time of the problem?
Information about photovoltaic panels:
The manufacturer name and model number of the PV panel
Output power of the panel
Open circuit voltage of the panel
Vmp of the panel
Maximum current per string
Number of panels in each string
If you need to replace the device, please ship it to the original box.

27 28
Warning Code
Fault Discription
Suggestion
Warning 200
String fault
1. After shutdown,Check the panel is
normal.
2. If error message still exists, contact
manufacturer.
Warning 201
String PID quick connect
terminal detection error
1. After shutdown,Check the string terminal
wiring.
2. If the error message still exists, contact
the manufacturer.
Warning 202
DC SPD function
abnormal
1. After shutdown,Check the DC SPD.
2. If error message still exists,contact
manufacturer.
Warning 203
PV Circuit short
1: Check the PV1 or PV2 wiring is short-
circuited
2: If error message still exists,contact
manufacturer.
Warning 204
Dryconnect function
abnormal
1. After shutdown,Check the dry Dryconnect
wiring.
2. If the error message still exists, contact
manufacturer.
Warning 205
PV Boost driver broken
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Warning 206
AC SPD function
abnormal
1. After shutdown,Check the AC SPD.
2. If error message still exists,contact
manufacturer.
Warning 207
U disk over-current
protection
1: unplug the U disk
2: Re-access U disk after shutdown
3. If the error message still exists, contact
manufacturer.
Warning 208
DC Fuse Open
1. After shutdown,Check fuse.
2. If error message still exists, contact
manufacturer.
Warning 209
The DC input voltage is
exceeding the maximum
tolerable value.
1. Immediately disconnect the DC switch and
check the voltage
2. If the fault code still exists after the
normal voltage is restored, contact
manufacturer
Warning 210
PV Reversed
1: Check PV input terminals
2: If error message still exists,contact
manufacturer.
13.2 Syetem error
13.2.1 Warning code
Warning Code
Fault Discription
Suggestion
Warning 300
No Utility
1. Please confirm grid is lost or not.
2. If error message still exists,contact
manufacturer.
Warning 301
Grid voltage outrange
1. Check the AC voltage is in the range
of standard voltage in specification.
2. If error message still exists,contact
manufacturer.
Warning 302
Grid frequency
outrange
1. Check the frequency is in the range
of specification or not.
2. If error message still exists,contact
manufacturer.
Warning 303
EPS mode, over load
1. Please reduce the load of EPS output.
2. If error message still exists,contact
manufacturer.
Warning 304
CT Open
1: Check if AC current sensor is connected
well.
2: If error message still exists,contact
manufacturer.
Warning 305
SP-CT L N line reversed
or Ground fail
1: Check the L line and N line of SP-CT is
reversed or not.
2: If error message still exists,contact
manufacturer.
Warning 306
Communication fault，
M3 didn't receive SP-CT
data
1: Check communication wire
2: If error message still exists,contact
manufacturer.
Warning 307
Communication fault
1: Check communication wire
2: If error message still exists,contact
manufacturer.
Warning 400
Fan function abnormal
1.After shutdown,Check the fan connection.
2. replace the fan.
3. If the error message still exists, contact
manufacturer.
Warning 401
Meter abnormal
1: Check if the meter is on
2: Check the machine and the meter
connection is normal .
Warning 402
Optimizer and inverter
communication is
abnorma
1. Check if the optimizer is on.
2. Check whether the connection between
the optimizer and the inverter is normal.
Warning 403
String communication
abnormal
1. After shutdown,Check the string panel
wiring.
2. If the error message still exists, contact
manufacturer .

29 30
Warning Code
Fault Discription
Suggestion
Warning 404
EEPROM abnormal.
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Warning 405
DSP and COM firmware
version unmatch
1. Check the firmware version.
2. If error message still exists,contact
manufacturer.
Warning 406
Boost module error
1. Restart inverter
2. If error message still exists, contact
manufacturer.
Warning 407
NTC Temperature too
high or NTC is broken
1. Restart inverter
2. If error message still exists, contact
manufacturer.
Warning 408
NTCBroken
1. Restart inverter
2. If error message still exists, contact
manufacturer.
Warning 409
CT Connect abnormal
1. Check the CT connect Whether it is
correct or not.
2. If error message still exists, contact
manufacturer.
13.2.2 Error code
Error Code
Fault Discription
Suggestion
Error 200
AFCI Fault
1. After shutdown,Check the panel terminal.
2. Restart inverter.
3. If error message still exists,contact
manufacturer.
Error 201
Leakage current too
high
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 202
The DC input voltage is
exceeding the maximum
tolerable value
1. Immediately disconnect the DC switch and
check the voltage
2. If the fault code still exists after the
normal voltage is restored, contact
manufacturer
Error 204
PV Reversed
1. After shutdown,Check the inverter
terminal.
2. Restart inverter.
3. If error message still exists,contact
manufacturer.
Error Code
Fault Discription
Suggestion
Error 300
AC V Outrange
1. Check grid voltage.
2. If the error message still exists despite the
grid voltage being within the tolerable
range, contactmanufacturer.
Error301
AC terminals reversed
1: Check AC terminals
2: If error message still exists, contact
manufacturer.
Error 302
No AC Connection
1. After shutdown,Check AC wiring.
2. If error message still exists,contact
manufacturer.
Error 303
PE abnormal
1. Check PE,to ensure that the PE line
contact good.
2. If error message still exisits,contact
Manufacturer
Error 304
AC F Outrange
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 305
Over Load Fault
1. Check whether output load over range; If
load too large, please reduce load.
2. If error message still exists, contact
manufacturer.
Error 306
CT LN Reversed
1: After shutdown，Check the SP-CT
connection.
2: If error message still exists,contact
manufacturer.
Error 307
Communication
fault,M3 didn't receive
SP-CT data
1: Check communication wire
2: If error message still exists,contact
manufacturer.
Error 308
Communication
fault;Pairing time too
long
1: Restart pairing
2: If error message still exists,contact
manufacturer.
Error 400
DCI bias abnormal
1. Restart inverter
2. If error message still exists, contact
manufacturer.
Error 401
DC Voltage High Fault
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 402
Output DC current too
high
1. Restart inverter.
2. If error message still exists,contact
manufacturer.

31 32
Error Code
Fault Discription
Suggestion
Error 403
Output current
unbalance
1: After shutdown,Check the output current
is not balanced.
2: If the error message still exists, contact
manufacturer.
Error404
bus sample fault
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 405
Relay fault
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 406
Init model fault
1. Reset mode.
2. If error message still exists,contact
manufacturer.
Error 407
AutoTest failure
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 408
NTC Temperature too
high
1. After shutdown,Check the temperature,
normal restart the inverter.
2. If the error message still exists, contact
manufacturer.
Error 409
Bus voltage abnormal
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 410
Redundant sample
circuit of Insulation
values are different
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 411
Communication fault
1. After shutdown,Check communication
board wiring
2. If the error message still exists, contact
manufacturer
Error 412
Temperature sensor
connection is abnormal
1. After shutdown,Check the temperature
sampling module is connected properly.
2. If the error message still exists, contact
manufacturer.
Error 413
IGBT drive fault
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 414
EEPROM fault
1. Restart inverter.
2. If error message still exists, contact
manufacturer.
Error 415
Internal power test fail
(PV Power low)
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error Code
Fault Discription
Suggestion
Error 416
Over current protected
by software
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error417
Grid voltage sampling is
inconsistent
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 418
DSP and COM firmware
version unmatch
1. Check the firmware version.
2. If error message still exists,contact
manufacturer.
Error 419
Redundant sample
circuit of GFCI values
are different
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 420
GFCI Module damage
1: After shutdown,Check the leakage
current module.
2: If the error message still exists, contact
manufacturer.
Error 421
CPLD is abnormal
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 422
sampling is inconsistent
1. Restart inverter.
2. If error message still exists,contact
manufacturer.
Error 423
Battery Reverse Protect
Fault
1. Restart inverter.
2. If error message still exists, contact
manufacturer.
Error 424
Communication board
and control panel
sampling battery
voltage is inconsistent
1. Restart inverter.
2. If error message still exists, contact
manufacturer.
Error 425
AFCI self-test fault
1. Restart inverter.
2. If error message still exists, contact
manufacturer.

33 34
14.1 Parameter
14 Specification
Specifications
Model
MID
6KTL3-XL
MID
8KTL3-XL
MID
10KTL3-XL
MID
11KTL3-XL
MID
12KTL3-XL
Input data(DC)
Max. recommended PV
power(for module STC)
7800W
10400W
13000W
13000W
15600W
Max. DC voltage
800V
Start voltage
250V
Nominal voltage
360V
MPP voltage range
160-800V
Full-load voltage range
280-640V
No. of MPP trackers
2
No. of PV strings per
MPP trackers
2
Max. input current per
MPP trackers
25
Max. short-circuit
current per MPP
trackers
32
Output data(AC)
AC nominal power
6000W
8000W
10000W
11000W
12000W
Max. AC apparent
6600VA
8800VA
11100VA
12100VA
13300VA
Nominal AC
voltage/range
133V/230V
AC grid
frequency/range
50/60 Hz
45~55Hz/55-65 Hz
Max. output current
16.5A
22.1A
27.8A
30.3A
33.3A
Power factor(@nominal
power)
>0.99
Adjustable power
factor
0.8Leading ...0.8Lagging
THDi
<3%
AC grid connection
type
3W+PE /3W+N+PE
Efficiency
Max. efficiency
98.65%
Euro-eta
98.3%
Specifications
Model
MID
6KTL3-XL
MID
8KTL3-XL
MID
10KTL3-XL
MID
11KTL3-XL
MID
12KTL3-XL
Protection devices
DC reverse-polarity
protection
YES
DC switch
YES
DC Surge protection
typeII
Insulation resistance
monitoring
YES
AC surge protection
typeII
AC short-circuit
protection
YES
Grid monitoring
YES
Anti-islanding
protection
YES
Residual-current
monitoring unit
YES
String Fuse protection
YES
String monitoring
OPT
AFCI protection
OPT
General data
Dimensions (W / H / D)
in mm
525*395*222mm
Weight
23kg
Operating temperature
range
-25°C ... +60°C
(>45°CDerating)
Noise emission (typical)
≤40dB(A)
Altitude
4000m
Internal consumption
at night
1W
Topology
Transformerless
Cooling
Fan cooling
Electronics protection
degree
IP65
Relative humidity
0~100%
DC connection
H4/MC4(OPT)
AC connection
Cable gland+OT terminal
Interfaces
Display
OLED+LED/WIFI+APP
USB/RS485
YES
WIFI/GPRS/4G
OPT