Growatt MAC 30KTL3-X LV User manual

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Installation & Operation Manual
Shenzhen Growatt New Energy Technology CO., Ltd
Growatt Industrial Park, No.28 Guangming Road, Shiyan, Baoan District , Shenzhen, P.R.China.
Service hotline: [phone]
Email: [e-mail]
Website: www.growatt.com
MAC 30KTL3-X LV
MAC 40KTL3-X LV
MAC 50KTL3-X LV
MAC 60KTL3-X LV
MAC 50KTL3-X MV
MAC 60KTL3-X MV
MAC 66KTL3-X MV
MAC 70KTL3-X MV

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Contents
1. Overview...............................................................................................................................................................................4
1.1 Product Overview..............................................................................................................................................4
1.2 Applicable Personnel.........................................................................................................................................4
2. Safety Precautions.................................................................................................................................................................4
2.1 Safety Overview................................................................................................................................................4
2.2 Symbol Conventions .........................................................................................................................................6
2.3 Label Description..............................................................................................................................................6
3. Product Introduction..............................................................................................................................................................7
3.1 Appearance.......................................................................................................................................................7
3.2 Size Description................................................................................................................................................8
3.3 Nameplate.........................................................................................................................................................8
3.4 Working Principle.............................................................................................................................................9
3.5 Inverter Storage.................................................................................................................................................9
3.6 Grid Type..........................................................................................................................................................9
4 Unpacking ............................................................................................................................................................................10
5. Installation........................................................................................................................................................................... 11
5.1 Basic Installation Requirements.......................................................................................................................11
5.2 Installation Environment Requirements ...........................................................................................................13
Moving Requirements...........................................................................................................................................14
5.4 Wall Mount Bracket Installation......................................................................................................................14
Figure 5-8 Wall mount installation ........................................................................................................................15
5.5 Install PV Inverter...........................................................................................................................................16
6. Electrical Connections.........................................................................................................................................................16
6.1 AC Side Connection........................................................................................................................................16
6.2 DC Side Connection........................................................................................................................................18
6.3 Communication Connection ............................................................................................................................20
6.3.1 RS485.............................................................................................................................................................20
6.3.2 USB ................................................................................................................................................................21
6.4 Protective Ground Connection.........................................................................................................................22
6.5 Lightning Protection Grounding ......................................................................................................................23
7. Debugging ...........................................................................................................................................................................24
7.1 Debug Inverter ................................................................................................................................................24

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7.1.1 Set the PV inverter Communication Address .................................................................................................24
7.1.2 Set Inverter Time and Date............................................................................................................................. 26
7.2 Operating Mode ..............................................................................................................................................27
7.2.1 Waiting Mode .................................................................................................................................................27
7.2.2 Operating Mode..............................................................................................................................................27
7.2.3 Failure Mode...................................................................................................................................................27
7.2.4 Shutdown Mode..............................................................................................................................................28
7.3 OLED Display and Touch Buttons ..................................................................................................................28
7.3.1 Boot Display...................................................................................................................................................28
7.3.2 OLED Display Wake Up ................................................................................................................................29
7.3.3 Function Setting..............................................................................................................................................29
8. Monitoring Method .............................................................................................................................................................31
8.1 Remote Data Monitoring.................................................................................................................................31
8.1.1 Mobile APP (ShinePhone) remote monitoring ...............................................................................................31
8.1.2 Server WEB webpage remote monitoring（ShineGPRS-X）.......................................................................35
8.2 Local Data Monitoring ....................................................................................................................................39
8.2.1 Mobile phone app (Shinephone) Local Monitoring........................................................................................40
8.2.2 U Disk Monitoring..........................................................................................................................................46
9. System Maintenance............................................................................................................................................................48
9.1 Routine Maintenance.......................................................................................................................................48
9.1.1 Cleaning Inverter............................................................................................................................................ 48
9.1.2 Fan Maintenance.............................................................................................................................................49
9.2 Trouble Shooting.............................................................................................................................................50
9.2.1 Warning...........................................................................................................................................................50
9.2.2 Error................................................................................................................................................................51
10. Technical Data...................................................................................................................................................................52
11. Decommissioning..............................................................................................................................................................54
12. Quality assurance...............................................................................................................................................................56
13. Contact............................................................................................................................................................................... 57

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1. Overview
1.1 Product Overview
This manual is aimed at providing sufficient information and installing instruction for consumers buying Shenzhen Growatt
New Energy Technology Co.,Ltd (short as Growatt) MAC Series solar inverters. Please read this manual carefully before
using the MAX series inverters and store the manual in a reachable place for an authorized technician. No further notice if
there is any change in this manual.
1.2 Applicable Personnel
Only qualified electrical technicians are allowed to install Max series inverter. With reading through this manual and
following all the precautions, qualified electrical technician can properly install Max serial inverter, finish trouble shooting
and communication settings.
If there is any problem during the installation, the installer can either log on www.ginverter.com and leave a message or call
24 hours consumer service hotline [phone]
2. Safety Precautions
2.1 Safety Overview
1. Before installation please make sure reading through this manual, any damage caused by improper installation, Growatt
reserve the right to disclaim any warranty.
2. All the operations and connections must be done by trained qualified electrical technician.
3. During installation except for terminals, do not touch any inside part of the inverter
4. All the electrical connections must meet local country’s safety regulations
5. If you need maintenance for this inverter, please contact our local authorized installing and maintenance technician.
6.You must get the local power supplier’s permit before connecting this inverter to the grid.
7. When installing PV modules during the day, use opaque materials to cover the PV modules. Otherwise, the voltage at the
component terminals is high in the sun, which may cause personal danger.
Handling Process
WARNING
●The inverter is heavy, please treat with care while handling, in case of crushing injury.
Installation：

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NOTICE
Before Installation, please read through this manual, any damage caused by improper
installation, Growatt reserve the right to disclaim any warranty.
DANGER
Ensure that the MAX is not connected to a power supply and is not power on before
installation.
WARNING
Please follow this installation manual as installation condition environment, space and so
on.
Please install the inverter in a dry and ventilated environment, otherwise may affect the
performance of the inverter.
Please follow the installation procedures in this manual.
Electrical Connections：
DANGER
Before electrical connection, please ensure the inverter DC switch is at ‖OFF‖ also
disconnect AC switch, otherwise the high voltage from inverter may cause life risk.
Only trained authorized electrical technician can do the electric connection also please
follow the connection procedures in this manual along with local country’s regulations.
High voltage may cause electric shocks and serious injury please do not touch the inverter.
Please do not store inverter in area with flammable and explosive material.
WARNING
Each inverter must install oneAC breaker; AC breaker is forbidden to share with other
inverters.
It is forbidden to add load between inverter and breaker.
If the cable is thick, after tightening the cable do not shake it and ensure the cable is
well-connected and then start the inverter. Loose connection may cause overheat.
Before connecting between PV panels and inverter please ensure the positive and negative
poles are correct connected.
Maintenance and replacement:
DANGER
Must be installed by trained and authorized electrical technician and accurately follow this
manual.
Please disconnect the PV and AC switch for at least five minutes, all the operations should be
carried after power disconnection.
If there is PV isolation low alarm, the inverter case may be ungrounded, please do not touch the
inverter case.
High voltage of inverter may result in electric shock.
WARNING
For better cooling purpose, please regularly clean the fans.
Do not use air pump to clean the fans, cause it may damage the fans.
Other：

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After you receiving the inverter please check the packing materials for damage, if there is any
damage please contact your supplier.
WARNING
The Max. PV input voltage should not exceed 1100V.
For the disposed inverter, the consumer should dispose it according to local disposal rules for
electrical equipment waste.
2.2 Symbol Conventions
Symbol
Description
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in serious injury or death.
WARNING
Indicates potentially hazardous situation which, if not avoided, will result in serious injury or death.
CAUTION
Indicates potentially hazardous situation which if not avoided, will result in minor or moderate injury.
NOTICE
Indicates certain hazardous situation which, if not avoided, will result in property damage.
Reminds operator to read installation manual before operating or installing inverter.
2.3 Label Description
Symbol
Name
Meaning
High Voltage Electric
Shock
Inverter operating with high voltage, any operation regarding inverter need
to be done by trained and authorized electrical technician.
Burn Warning
Do not touch a running inverter cause it generates high temperature on the
case.
Protective Grounding
Connect inverter to grounding bar.
Delay discharge
Residual voltage exists after the inverter is powered off, it takes 5 minutes
for the inverter to discharge to the safe voltage

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Read the installation
manual
Reminds operator to read installation manual before operating or installing
inverter.
DC
Means this terminal is for DC side.
AC
Means this terminal is for AC side
3. Product Introduction
3.1 Appearance
Front view:
Mark
Description
Mark
Description
A
DC switch
G
485 Waterproof connector
B
Fan
H
AC Waterproof connector
C
PV input terminal
I
LED Indicator light
D
Breathable valve
J
OLED Screen
E
Safety ground terminal
K
Touch button
F
USB interface
HMI operation introduction：

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3.2 Size Description
Model
Size（unit：mm）
Weight (unit: kg)
width
high
Deep
MAC 30-70KTL3-X PV inverter
680
508
281
52
MAC 30-70KTL3-X PV Inverter with packaging
730
650
350
60
3.3 Nameplate
Note: The MAC series inverter nameplate is similar to the nameplate shown above, but the product model and specific
parameters are different. See Chapter 10 Product Specifications for specific parameters.
Identification
Description
Explanation
Touch mark
Touch button to switch OLED display and set parameters by
touch
Inverter status
identification
Indicates the current operating status of the inverter:
1. Red: Fault
2. Green: normal operation
3. Red light flashes: warning
4. Green light flashes: update program

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3.4 Working Principle
Mac inverter’s working principle is like following:
1. The PV panels gather solar to generate DC power to inverter.
2. With input current detection circuit, it can monitor all the PV panels’ working status and use MPPT to track the
maximum power point.
3. With inverter circuit change DC power to AC power, and feed power back to grid per grid reuqirement.
4. With output isolation relay can isolate AC output and grid, if anything goes wrong on either inverter side or grid side,
isolation relay can disconnect inverter immediately.
On-grid connection system diagram:
3.5 Inverter Storage
1. Do not unpack the Inverter and store it in a ventilation dry place
2. Keep the storage temperature at -25℃~+60℃and humidity at 0-95%.
3. A maximum of four inverters with package can be stacked.
4. If the inverter has been long-term stored, inspections and tests should be conducted by qualified personnel before it is
put into use.
3.6 Grid Type
In the MAC series, the MAC 30-60KTL3-X LV model grid connection method is shown in Figure (1), and the MAC
50-70KTL3-X MV model grid connection method is shown in Figure (2).
ABCD E F
A
Photovoltaic module
D
AC circuit breaker
B
DC circuit breaker
E
Meter
C
PV inverter
F
Grid

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4 Unpacking
Checking before installation
1. Before unpacking the inverter, check the outer packing materials for damage.
2. After unpacking the inverter, check that the contents are intact and complete. If any damage is found or any component
is missing, contact your supplier.
The MAC series inverter accessories are as follows:：
No.
Name
Quantity
A
PV inverter
1
B
AC Protective cover
1
C
Wall mount
1
D
User manual
1
E
Data collector / manual
(optional)
1/1
F
Self-tapping screw
5
G
Plastic expansion tube
5
A B CD E
JIH
G
F
K L M N O

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H
Safety screw
1
I
485 terminal (3PIN)
1
J
485 terminal (6PIN)
1
K
PV+/PV- terminal
8/8(MAC 30KTL3-X LV)
9/9（MAC 40KTL3-X LV）
10/10（MAC 50KTL3-X LV/MV）
12/12（the others）
L
PV+/PV- metal terminal
8/8(MAC 30KTL3-X LV)
9/9（MAC 40KTL3-X LV）
10/10（MAC 50KTL3-X LV/MV）
12/12（the others）
M
PV Removal tool
1
N
RNBS14-6
1
O
SC50-10
5
*
Warranty card
1
*
Copy of the business license
1
*
Certificate
1
*
CQCC ertificate/report
1/1
*
Packing list
1
Note: The MAC series comes standard with 50-10 copper crimp terminals. If you have copper and aluminum terminals,
please contact the supplier.
5. Installation
CAUTION
●To prevent device damage and personal injury, keep balance when moving the inverter because
it is heavy.
●Do not place the inverter with its wiring and signal terminals at the bottom contacting with
floor or any other object because the terminals are not designed to support the weight of inverter.
●When placing inverter on the floor, put foam or paper under the inverter to protect its cover.
5.1 Basic Installation Requirements
A. Ensure that the installation wall is solid enough to bear the inverter.(Inverter weight please refer to installation manual
Chapter3, 3.2 )
B. There must be enough installation space to fit the size of inverter..
C. Do not install inverter on flammable or heat-intolerant buildings.
D. This inverter is IP 65 protection, you can install it indoor or outdoor.
E. Install the inverter in the eye for easy viewing of the OLED display and maintenance work.
F. To avoid inverter performance de-rate due to the over heat, please do not expose the inverter under direct sunlight.
G. The installation humidity should be from 0-95%.
H. The surrounding temperature of inverter should be from -25℃~+60℃.
I. Inverter should be installed in a vertically or rear tilted surface, please refer to following drawings.

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When the equipment is placed horizontally, the height from the ground
must be more than 1 meter.
Figure 5-1 Installation diagram
J. To ensure the inverter can work smoothly and easy for personnel to operate, please notice there is sufficient space for
inverter, refer to following drawing：
Figure 5-2 Install an inverter
≥500mm
≥500mm
≥500mm
≥500mm

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Figure 5-3 Install multiple inverters
K. Do not install inverter close to strong electromagnetic signal.
L. Install the inverter out of children’s reach.
5.2 Installation Environment Requirements
A. Although the inverter’s protection level is IP 65, to extent inverter lifespan you still need to avoid rain and snow, please
refer to following drawings.
Figure 5-4 install environment
B. To reduce the de-rate performance of the inverter and extend inverter’s life span, we strongly recommend you install an
awning, for the distance between an awning and inverter, please refer to following drawing.
Min 50cm Min 50cm Min 50cm
Min 50cm Min 100cm Min 100cm
Min 100cm
Min 50cm Min 50cm
Min 50cm
Min 50cm Min 50cm Min 50cm
Min 50cm
Min 50cm

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Figure 5-5 Awning
C. Do not install inverter into an enclosed space like following drawing：
Figure 5-6
5.3 Moving Requirements
WARNING
●The inverter is heavy, please move it with care and keep balance to avoid personnel injury.
●Do not place the inverter with its wiring and signal terminals at the bottom contacting with floor
or any other object because the terminals are not designed to support the weight of inverter.
1. 2-3 people put their hands into the package, lift the inverter out of the package, and move to the designated installation
location.
2.When you are moving the inverter, please keep the balance.
Notice: There is front and bottom mark on the package.
5.4 Wall Mount Bracket Installation
Before install the inverter you need install the wall mount bracket so that the inverter can be firmly installed on the wall.

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Wall mount plane drawing：
Figure 5-7
DANGER
To avoid electric shock or other damage, be sure to check the wall for power lines or other piping before
opening the wall.
Steps:
1. Use the wall mount plate as a template drill holes on the wall and put in expansion bolts.
2. Follow the following drawing put the bolt to install the wall mount plate on the wall.
Figure 5-8 Wall mount installation

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5.5 Install PV Inverter
1. Before installing the inverter on the wall mount, please make sure that the wall mount is firmly fixed to the wall:
2. Hang the inverter on the wall mount and fix it with bolts. Keep the inverter balanced when hanging.
3. Check the inverter if it is firm enough and lock all the screws.
图5-9 Fixed the safety screw
6. Electrical Connections
6.1 AC Side Connection
DANGER
Before electrical connection, please ensure the inverter DC switch is at ‖OFF‖ also disconnect AC
switch, otherwise the high voltage from inverter may cause life risk.
Only trained authorized electrical technician can do the electric connection also please follow the
connection procedures in this manual along with local country’s regulations.
High voltage may cause electric shocks and serious injury please do not touch the inverter.
Please do not store inverter in area with flammable and explosive material.
Each inverter must install oneAC breaker, AC breaker is forbidden to share with other inverters.

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DANGER
It is forbidden to add load between inverter and breaker.
If the cable is thick, after tightening the cable do not shake it and ensure the cable is well-connected
and then start the inverter. Loose connection may cause overheat.
Preparation before connection:
1. Disconnect inverter DC switch and AC breaker or switch
2. When theAC wire is tightened, the torque of the PE grounding is 35kgf.cm, and the other torque is 50kgf.cm.
3. Measure the grid voltage and frequency. For detailed parameters, please refer to Chapter 10 Product Specifications.
AC circuit breaker specifications:
PV inverter model
Circuit breaker specifications
MAC 30KTL3-X LV
63A/400Vac
MAC 40KTL3-X LV
80A/400Vac
MAC 50KTL3-X LV
100A/400Vac
MAC 60KTL3-X LV
100A/400Vac
MAC 50KTL3-X MV
80A/ 480Vac
MAC 60KTL3-X MV
100A/480Vac
MAC 66KTL3-X MV
100A/480Vac
MAC 70KTL3-X MV
100A /480Vac
Cable specifications refer to the following table:
PV inverter
Cross-sectional area（mm2）
Recommended value（mm2）
Copper wire
Aluminum wire
Copper wire
Aluminum wire
MAC 30KTL3-X LV
10-35
25-50
16
25
MAC 40KTL3-X LV
25-35
35-50
30
35
MAC 50KTL3-X LV
25-35
35-50
35
50
MAC 60KTL3-X LV
25-35
35-50
35
50
MAC 50KTL3-X MV
25-35
35-50
30
35
MAC 60KTL3-X MV
25-35
35-50
35
50
MAC 66KTL3-X MV
25-35
35-50
35
50
MAC 70KTL3-X MV
25-35
35-50
35
50
Notice: The cable must be unbroken.
AC terminal wiring steps:
A. The following figure shows the AC terminal on the inverter. L1, L2, and L3 are three fire channels, and N is a nature
channel.
Note: The screws are matched with M8 screws.
B. Determine the stripping length according to the specifications of the crimping terminal (recommended 16-18mm), crimp
the wire and terminal with the crimping pliers, then pass the cable through the protective casing, lock it on the
corresponding AC terminal, and tighten the terminals Screw.
PC

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C. Connect the MP cable of the AC terminal with the matching M4 screw. After the RS485 is connected, lock the protective
casing on the inverter frame.
D. Lock the protective casing on the inverter frame and block the waterproof joint with fireproof mud to prevent water
ingress
.
NOTICE
Waterproof joints must be blocked with fireproof mud to prevent
water ingress.
6.2 DC Side Connection
DANGER
Before electrical connection, please ensure the inverter DC switch is at ‖OFF‖ also disconnect
AC switch, otherwise the high voltage from inverter may cause life risk.
Only trained authorized electrical technician can do the electric connection also please follow
the connection procedures in this manual along with local country’s regulations.
High voltage may cause electric shocks and serious injury please do not touch the inverter.
Please do not store inverter in area with flammable and explosive material.
Notice: The sunlight will generate voltage on the solar panels, after serial connection, the high voltage may injure personnel,
so before connect DC input cable you need cover solar panels with light-tight materials and make sure the inverter DC

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switch is at ‖OFF‖ status, otherwise high voltage may injure personnel.
WARNING
Each string’s maximum open circuit voltage cannot exceed 1100Vdc, otherwise it could lead to
fire or damage the inverter.
If the inverter was damaged by higher maximum open circuit voltage (higher than 1100Vdc)
product warranty will be forfeited and Growatt will not take any responsibility.
A．Each string solar panels should be same brand and same model.
B．The total panels power should not exceed 1.25 times of inverter input power.
C. According to the specification of the crimping terminal, determine the stripping length (recommended 8-10, mm), crimp
the wire and terminal with the crimping pliers, and connect them to the corresponding connector housings separately, and
hear the click sound to ensure the connection is good. The picture shows the connection of the DC terminal.
Notice: Connectors need to be fit with male and female terminals, before connecting panels with inverter please make sure
the positive pole and negative pole, namely the solar panels’positve pole connect to‖+‖ negative pole connect to‖-‖.
C．C. The positive and negative terminals of the panel are connected to the corresponding terminals of the inverter. For
the maximum input current value of each MPPT of different types of inverters, please refer to the following table.：
PV inverter
Maximum input current per MPPT
MAC 30KTL3-X LV
12.5A*3/12.5A*3/12.5A*2
MAC 40KTL3-X LV
12.5A*3/12.5A*3/12.5A*3
MAC 50KTL3-X LV
12.5A*4/12.5A*3/12.5A*3
MAC 60KTL3-X LV
12.5A*4/12.5A*4/12.5A*4
MAC 50KTL3-X MV
12.5A*4/12.5A*3/12.5A*3
MAC 60KTL3-X MV
12.5A*4/12.5A*4/12.5A*4
MAC 66KTL3-X MV
12.5A*4/12.5A*4/12.5A*4
MAC 70KTL3-X MV
12.5A*4/12.5A*4/12.5A*4
D.Panel component configuration recommendation table:
MPPT
PVA
PVB
PVC
12 Strings
●●●●
●●●●
●●●●
11 Strings
●●●●
●●●●
●●●○
10 Strings
●●●●
●●●○
●●●○
9 Strings
●●●○
●●●○
●●●○
8 Srings
●●●○
●●●○
●●○

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NOTICE
When there is a hanging string in each MPPT, it is necessary to add a
dust plug for waterproof treatment.
D．Cable specification requirements:
PV inverter model
Cross-sectional area
（mm2）
Recommended value
（mm2）
Line outer diameter
range（mm2）
MAC 30KTL3-X LV
4-6
4
4.5-7.8
MAC 40KTL3-X LV
4-6
4
4.5-7.8
MAC 50KTL3-X LV
4-6
4
4.5-7.8
MAC 60KTL3-X LV
4-6
4
4.5-7.8
MAC 50KTL3-X MV
4-6
4
4.5-7.8
MAC 60KTL3-X MV
4-6
4
4.5-7.8
MAC 66KTL3-X MV
4-6
4
4.5-7.8
MAC 70KTL3-X MV
4-6
4
4.5-7.8
Notice：1. Under any circumstance, the total current of all strings cannot exceed the inverter’s maximum current.
2. Do not touch any working solar panels.
3. Make sure the cable is unbroken.
6.3 Communication Connection
6.3.1 RS485
The MAC series comes standard with two RS485 interfaces, and you can monitor one or more inverters via RS485.
Another RS485 port is used to connect the smart meter (single machine anti-backflow function). When connecting the
RS485 communication line to a single unit, please follow the instructions below.
1) Loosen the AC protective cover and remove the protective cover;
2) Pass the RS 485 communication cable through the waterproof rubber plug and connect to the RS485 interface;
3) 3) The inverter is connected hand-in-hand through the RS 485 communication line. The RS485A1 and RS485B1 (4/5/6
port or 7/8/9 port) at the end of the 485 cable are connected to the ShineMaster for remote server monitoring.
4) Lock the protective casing on the inverter frame to prevent water ingress.
Figure 6-5 RS485 schematic diagram
No.
definition
description
1
RS485B2
RS485A2 / B2：Anti-backflow