Growatt MAX Series User manual

GR-UM-142-A-02GR-UM-142-A-02
SHENZHEN GROWATT NEW ENERGY TECHNOLOGY CO.,LTD No.28
Guangming Road, Shiyan Street, Bao'an District, Shenzhen, P.R.China
T: [phone]
E :[e-mail]
W :www.ginverter.com
Installation
Operation Manual
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Download
Manual
Growatt New Energy

List
1.1 Product Overview
1.2 Applicable Personnel
1 Overview
2 Safety Precautions
2.1 Safety Overview
2.2 Symbol
2.3 Meaning of Symbol
3 Product Introduction
4 Unpacking
5 Installation
5.1 Basic Installation Requirements
5.2 Installation Environment
Requirements
5.3 Moving Requirements
5.4 Wall Mounted Installation
5.5 Installing the Inverter
3.1 Appearance
3.2 Dimensions
3.3 Nameplate
3.4 Working Principle
3.5 Inverter Storage
3.6 Grid Types
. AFCI Detection Function
. Anti-PID Function
3 7
3 8

6.1 Connection on AC side
6.2 Connection on DC side
6.3 Connection of Communication
Cables
6.4 Connecting the Ground Cables
6 Connecting Cables 11 Decommissioning
7 System Commissioning
12 Quality Assurance
7.1 Inverter Commissioning
7.2 Modes
7.3 LED display
8.1 Remote Data Monitoring
8.2 Local Data Monitoring
9.1 Routine Maintenance
9.2 Trouble Shooting
8 Monitoring 13 Contact Us
9 Maintenance
10 Product Specification

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)
MAX 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 consumer service hotline +86 755
27471942.
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.
H a n d l e P r o c e s s：
Installation：
Electrical Connections:
Maintenance and replacement:
•The inverter is heavy,please treat with care while handling,in case of
crushing injury.
•
cause by improper installation,Growatt reserve the right to disclaim
any warranty.
Before installation,please read through this manual,any damage
•Ensure that the MAX is not connected to a power supply and is not
power on before installation.
•
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.
Before electrical connection, please ensure the inverter DC switch is
•
accurately follow this manual.
•Please disconnect the DC 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.
Must be installed by trained and authorized electrical technician and
•Each inverter must install one AC 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.
•
•Do not use air pump to clean the fans, cause it may damage the fans.
For better cooling purpose, please regularly clean the fans.
1
2
•Please follow this installation manual as installation condition
environment,space and so on.
• P l e a s e i n s t a l l t h e i n v e r t e r i n a d r y a n d v e n t i l a t e d
environment,otherwise may affect the performance of the inverter.
•Please follow the installation procedures in this manual.
WARNING
WARNING
DANGER
DANGER
DANGER
NOTICE
WARNING
WARNING

2.2 Symbol Conventions
Symbol
Description
Indicates an imminently hazardous situation which,if not
will result in serious injury or death.
avoided,
Indicates potentially hazardous situation which,if not avoided,will
result in serious injury or death.
Indicates potentially hazardous situation which,if not avoided,will
result in minor or moderate injury.
Indicates certain hazardous situation which,if not avoided,will
rusult in property damage.
Reminds operator to read installation manual before operating or
installing inverter.
2.3 Lable Description
Symbol
Name
Meaning
High Voltage
Electric Shock
Inv erter operating with h igh 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.
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.
CE Mark
The inverter complies with the requirements of
the applicable CE guidelines.
4
3
Other：
•
damage,if there is any damage please contact your supplier.
After you receiving the inverter please check the packing materials for
•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.
CAUTION
NOTICE
WARNING
WARNING
DANGER

3 Product Introduction
3.1 Appearance
Front view:
Bottom view(Termial):
Side view:
A
B
Fig 3.1
A
M
N
Fig 3.3
6
5
FGHL
C
DEIJ
K
80~100K models add
one PV terminal block
777
13 14
Fig 3.2
Mark
Description
Mark
Description
A
Ring
H
USB_B port( )optional
B
LED
I
RS 485 cable waterproofe head
C
DC switch
J
Outside CT port( )optional
D
Vent valve
K
Antenna port(optional)
E
PV terminal board
L
AC cable waterproof head
F
Safety ground screw
M
Fan
G
USB_A port
N
Heatsink
Notice: For inverters with 90-100K capacity, need add another string of PV terminal.
3.2 Basic Data
Model
Size（mm)
Weight
(kg)
Width
Height
Thickness
50-80K Inverters
860
600
300
82
50-80K Inverter with package
1035
735
465
98
3.3 Nameplate
Note: Other models of MAX series share the same label design with MAX50KTL3 LV,
only with different model name and parameters, detail parameter please refer to
specification in Chapter 10.
Made in China
PV voltage range
PV Isc
Max. input current
Max. apparent power
Nominal output voltage
Power factor range
Safety level
Max. output power
Max output current
Nominal output
Frequency
Ingress Protection
Model name
PV Grid Inverter
Max. PV voltage
3W/N/PE
230/400 a.c.V
Operation Ambient
Temperature
1100 d.c.V
88800 VA
MAX 80KTL3 LV
Class I
IP65
80000 W
0.8leading~0.8lagging
128.8 a.c.A
-25 +60°C - °C
200-1000 d.c.V
50/60 Hz
26 d.c.A 7
32 d.c.A 7

Fig 3.7
78
500V 500V
500V
The MAX series inverter works as follows:
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.
3.4 Working Principle
3.5 Inverter Storage
3.7 AFCI Detection Function
3.8 Anti-PID Function
3.6 Grid Types
On-grid connection system diagram:
A B C D
Fig 3.4
symbol
A
B
C
D
PV string
Inverter
Electric meter
Gird
symbol
Description Description
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.
After being stored for a month or longer, the inverter's time and date
could be wrong, you need set the time and date before using, for
more details please refer to Chapter 7.1 inverter commissioning.
The MAX series, 50-80KTL3 LV inverters connect to the grid like following drawing
3.5,60- 80KTL3 MV inverters connect to the grid like following drawing3.6.
400V
400V 400V
230V
230V 230V
480V
4 80V
480V
Fig 3.5Fig 3.6
AFCI (Arc Fault Circuit Interrupter) is a kind of circuit protection device, the main
function is to prevent the fire caused by fault arc.The electrical insulation aging,
breakage, loose connection, air breakdown caused by air humidity and so on, all of these
may cause an electric spark,which is called arc.
The AFCI function of the MAX series inverter is optional, and the detection equipment is
assembled inside the inverter. When an arc-drawing condition is detected on the PV
input side, the arc current could be detected by the CT assembled on the PV input-side
wire. Then the inverter will shut down. Meanwhile, the inverter will display the
corresponding fault message and the buzzer will sound, which could help to avoid harm
and economic loss to the user.
The full name of PID is Potential Induced Degradation. Since the PID effect, a large
amount of charge could accumulate on the surface of the photovoltaic module, which
makes the surface passivation of the module worse. Eventually, the fill factor, open-
circuit voltage, and short-circuit current of the module are reduced, and the power of the
photovoltaic module is attenuated.
The Anti-PID function uses the principle of reversible PID changes. MAX series inverters
rectify AC voltage at night and boost it to generate a DC voltage. The DC voltage is
connected to PV + and the ground respectively. When add a positive bias voltage to the
module to make the PID effect reverse,the Anti-PID function could repair the
photovoltaic modules at night and prolong the service life of photovoltaic modules.
NOTE: Anti-PID function is optional.
NOTE: AFCI function is optional.

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.
Package contents:
Mark
Descriptions
Number
A
Inverter
1
B
Wall mount
1
C
PV+ terminal,PV- terminal
12/12 (6 MPPT)
14/14 (7 MPPT)
D
SC50-10
5
E
Installation manual
1
F
Warranty card
1
G
Antenna(opt)
1
H
Removal tool of PV terminals
1
I
Removal handle(opt)
2
J
Wall mount screw
5
K
Rs485 terminal
2
*
AC waterproof joint fastening ring(opt)
1 /2
Installation 5
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. To avoid inverter performance de-rate due to the over heat, please do not expose the
inverter under direct sunlight.
F. The installation humidity should be from 0-95%.
G. The surrounding temperature of inverter should be from -25℃ - +60℃.
H. Inverter should be installed in a vertically or rear tilted surface, please refer to
following drawings.
Fig 5.1
I. 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.
Fig 5.2
10
9
•
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.
To prevent device damage and personal injury, keep balance when
CAUTION
1000mm
1000mm
1000mm
1000mm
Fig 4.1
PASSPORT
A B CD
EFGHIJK
0~90°
90°
90°
≥1000mm

J. Do not install inverter close to strong electromagnetic signal.
K. 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.
Fig 5.3
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.
500mm
306mm 500mm
2000mm
Fig 5.4
C.When you install multiple inverters on one surface, inverters should be installed as
following drawing.
D. Do not install inverter into an enclosed space like following drawing.
Fig 5.6
12
11
5.3 Moving Requirements
•
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.
The inverter is heavy, please move it with care and keep balance to avoid
Plan 1：
1>As shown in Fig5.7, use a rope to tie at ring and handle, lift the inverter from package
and move to installation position.
2>When you are moving the inverter, please keep the balance.
Notice: There is front and bottom mark on the package.
Fig 5.5
1000
mm
1000mm
1000mm
1000mm
WARNING

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.
Wall mount plan:
Fig 5.7Fig 5.8
Fig 5.9
Fig 5.10
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.
Fig 5.11
Notice: Do not install inverter unless you have confirmed the wall mount plate has been
firmly installed on the wall.
Notice：Expansion bolt should be installed on solid walls with at least 100mm thickness.
5.5 Installing The Inverter
After the wall mount bracket has been firmly installed on the wall , put the inverter on
that plate.
1>Use the rope(must meet the weight requirement of the inverter) through two rings
and lift the inverter up, just as following Figure.
2>Before hanging the inverter on the wall mount bracket use screws to fix the inverter
and please keep the inverter balance.
3>Check the inverter if it is firm enough and lock all the screws.
1413
Plan 2(Optional):
1>As shown in Fig5.8, 4-6 persons lift the inverter out of package, swap the ring to
moving handles.
2>When you are moving the inverter, please keep the balance.
Notice: There will be front and bottom mark on the package.
780.0
340.0
420.8
50*14=700.0
50*14=700.0
25.0
12.0