Page 1
SG8KTL-EC/SG10KTL-EC/
User Manual
SG12KTL-EC
PV Grid-Connected Inverter
SG8_10_12KTL-ECV11-UEN-Ver15-201508 Version：1.5
Page 2
About This Manual
This manual is for the inverters SG8KTL-EC, SG10KTL-EC, and SG12KTL-EC
(hereinafter referred to as the inverter unless specif ied otherwise). They are
grid-connected, transformer-less, robust inverters with high conversion efficiency.
The devices will bring you profit for PV power system.
Aim
The manual contains information about the inverter, which will provide you
guidelines to connect the inverter into the PV power system and to operate the
inverter.
Related Documents
The manual cannot include complete information about the PV system. You will get
the addit ional information about other devices at www.sungrowpower.com or via
webpage of device manufacturer.
Target Group
The manual is targeted to technical personnel who is responsible for inverter
installation and commissioning in the PV power system and inverter owner who will
perform daily LCD operat ion.
How to Use This Manual
Read the manual and other related documents before any work on the inverter.
Documents must be stored carefully and available at all times.
The contents of the manual will be periodically updated or revised due to product
development. It is probably that there are changes of manual in subsequent inverter
edit ion. The latest manual can be acquired via www.sungrowpower.com.
I
Page 3
Symbols Explanation
WARNING indicates a hazard with a medium level of risk which, if not
Important instructions contained in this manual should be followed during
installation, operation and maintenance of the inverter. And they will be highlighted
by the following symbols.
DANGER indicates a hazard with a high level of risk which, if not avoided, will
result in death or serious injury.
avoided, could result in death or serious injury.
CAUTION indicates a hazard with a low level of risk which, if not avoided,
could result in minor or moderate injury.
NOTICE indicates a situation which, if not avoided, could result in equipment
or property damage.
NOTE indicates addit ional informat ion, emphasized contents or tips to
help you solve problems or save t ime.
II
Page 4
Symbols on the Inverter Body
Disconnect the inverter from mains and PV generator before
service!
Do not touch any inner live parts until 10 minutes after
disconnection from the utility grid and the PV input.
Hot surface! In order to reduce the risk of burns, do not touch the
hot surface when the device is running.
Look over the user manual before any operation on the inverter!
The installation and service of the inverter unit can only be
performed by qualified personnel.
III
Page 5
Contents
About This Manual ................................................................... I
1 Safety Instructions ............................................................ 1
2 Product Introduction ......................................................... 6
2.1 Intended Usage ............................................................................... 6
2.2 Product Description ......................................................................... 7
2.2.1 Inverter Appearance.......................................................................... 7
2.2.2 Inverter Dimensions .......................................................................... 8
2.2.3 LCD Display Panel ............................................................................. 8
2.3 Technical Description ...................................................................... 9
2.3.1 Circuit Descript ion ............................................................................ 9
2.3.2 Functions Descript ion ..................................................................... 10
3 Unpacking and Storing .................................................... 12
3.1 Unpacking and Inspecting .............................................................. 12
3.2 Moving the Inverter........................................................................ 12
3.3 Ident ifying Inverter ........................................................................ 13
3.4 Delivery Contents .......................................................................... 14
3.5 Storing the Inverter ........................................................................ 15
4 Securing Inverter to the Wall ............................................ 16
4.1 Selecting Installation Locat ion ...................................................... 16
4.2 Moving Inverter to Installat ion Site ................................................ 19
4.3 Installing the Inverter ..................................................................... 20
5 Electrical Connection ...................................................... 24
5.1 Overview of Electrical Connection ................................................. 24
5.2 Terminals Descript ion ................................................................... 26
5.3 Meter Connect ion (optional) ......................................................... 26
5.4 Connect ing Inverter to Grid ............................................................ 27
5.4.1 AC Side Requirements ..................................................................... 27
IV
Page 6
5.4.2 Assembling AC Cables to Connector ................................................ 29
5.5 Connecting Inverter to PV Arrays ...................................................30
5.5.1 PV Inputs Configuration ................................................................... 31
5.5.2 Assembling DC Cable to Connector .................................................. 33
5.5.3 DC Wiring Procedure ....................................................................... 35
5.6 Grounding the Inverter ...................................................................38
5.6.1 Grounding System Overview ........................................................... 38
5.6.2 Second Protective Earth Terminal ................................................... 39
5.7 Communicat ion Connection ......................................................... 40
5.7.1 Interfaces Overview ........................................................................ 40
5.7.2 RS485 Communication Connect ion ................................................. 41
5.7.3 Ethernet Communication Connect ion ............................................. 44
5.7.4 Power Control Conf igurat ion .......................................................... 47
6 Visiting and Configuring the Webserver ............................. 53
6.1 User and Authority ......................................................................... 53
6.2 Login Interface ............................................................................... 53
6.3 Main Interface ............................................................................... 54
6.3.1 Summary Information .................................................................... 54
6.3.2 Detailed Informat ion ...................................................................... 55
6.4 Parameter Sett ings ....................................................................... 56
6.4.1 System Parameters ........................................................................ 56
6.4.2 Operating Parameters .................................................................... 56
6.4.3 Protection Parameters ................................................................... 58
6.4.4 Communication Parameters ........................................................... 59
6.5 History Record .............................................................................. 60
6.5.1 Running Record .............................................................................. 60
6.5.2 Fault Record ................................................................................... 60
6.5.3 Event Record .................................................................................. 61
6.6 Power Control Configurat ion .........................................................61
6.7 Output Node ................................................................................. 62
6.8 System Information ...................................................................... 62
V
Page 7
7 Commissioning ............................................................... 63
7.1 Inspect ion before Commissioning .................................................. 63
7.2 Commissioning Procedure ............................................................. 63
8 Disconnecting, Dismantling and Disposing of the Inverter .. 67
8.1 Disconnecting the Inverter ............................................................. 67
8.2 Dismantling the Inverter ............................................................... 68
8.3 Disposing of the Inverter ............................................................... 68
9 Troubleshooting and Maintenance ................................... 69
9.1 Troubleshooting ........................................................................... 69
9.1.1 Troubleshooting of LED Indicator .................................................... 69
9.1.2 Troubleshooting of Faults in LCD Screen ......................................... 69
9.2 Maintenance .................................................................................. 75
9.2.1 Routine Maintenance ..................................................................... 75
9.2.2 Maintenance Instruct ion ................................................................. 76
10 Operating the LCD Menu ................................................. 77
10.1 Description of Button Function ...................................................... 77
10.2 Inverter Menu Structure ................................................................. 78
10.3 Main Screen ................................................................................... 79
10.4 Adjust ing Contrast ......................................................................... 81
10.5 Viewing Detailed Running Informat ion .......................................... 81
10.6 History Running Information .......................................................... 83
10.6.1 Fault Records ................................................................................ 83
10.6.2 History Event Records ................................................................... 83
10.6.3 Running Informat ion Records ........................................................ 84
10.7 Starting and Stopping the inverter ................................................. 85
10.8 Entering Password ......................................................................... 85
10.9 Button Operation for Parameters Setting ..................................... 86
10.10 Sett ing System Parameters .......................................................... 86
10.10.1 Sett ing the Time ......................................................................... 86
10.10.2 Energy Ad justment ..................................................................... 87
10.10.3 Load Default ............................................................................... 87
VI
Page 8
10.10.4 System Conf igurat ion ................................................................. 88
10.10.5 Firmware Version ........................................................................ 89
10.11 Setting Running Parameter ........................................................... 90
10.11.1 Main Screen of Run-param ........................................................... 90
10.11.2 Reactive Power Regulat ion ......................................................... 91
10.11.3 Save P/Q-set ................................................................................ 93
10.12 Sett ing Protective Parameters ...................................................... 94
10.13 Setting Communicat ion Parameters .............................................. 97
10.14 Setting PV Configurat ion Mode .................................................... 98
10.15 Special Settings for Austria and Vorarl berg .................................... 98
10.15.1 Over-frequency Setting for Austria and Vorarlberg ....................... 98
10.15.2 Reactive Power Regulat ion for Austria and Vorarlberg ................. 99
10.15.3 Protective Parameters Setting for Austria and Vorarlberg ........... 101
10.16 Special Sett ings for Italy .............................................................. 104
10.16.1 Over-frequency Derating Setting for Italy .................................. 104
10.16.2 Reactive Power Regulation for Italy ............................................ 105
10.16.3 Protective Parameters Setting for Italy ...................................... 107
11 Viewing PV Plant Information ........................................ 110
11.1 SolarInfo Bank Connection ........................................................... 110
11.1.1 For Common User ......................................................................... 110
11.1.2 For Professional User .................................................................... 111
11.2 Registration and Adding PV Plant ................................................ 114
11.3 Viewing Information via the APP .................................................. 118
11.3.1 Acquisition and Installat ion of the APP ......................................... 118
11.3.2 SolarInfo Home APP Online Registrat ion ......................................120
11.3.3 Visit in “Remote [Login]”mode ..................................................... 121
12 Appendix ...................................................................... 122
12.1 Technical Data ............................................................................. 122
12.2 Exclusion of Liability .................................................................... 124
12.3 About Us ...................................................................................... 125
VII
Page 9
1 Safety Instructions
by qual if ied
and other related
IMPORTANT SAFETY INSTRUCTIONS
The inverters have been designed and tested strictly according to the internat ional
safety regulations. As electrical and electronic equipments, safety instructions
related to them must be complied with during installat ion, commissioning,
operat ion and maintenance. Incorrect operation or work may result in damage to
the life and well-being of the operator or a third party, or
the inverter and other properties that belong to the operator or a third party.
Therefore, the following general safety instructions must be read and always kept in
mind prior to any work. All detailed work-related safety warnings and notes will be
specif ied at the critical points in corresponding chapter.
All installat ion and electrical work must be performed only
personnel. They have
been trained specially;
already read through and understood the manual
documents;
been famil iar with safety requirements for electrical system.
Technical personnel mentioned above may perform the following work:
Install the inverter onto the wall.
Connect the inverter into the PV power system.
Connect other devices into the PV power system.
Commission the inverter.
Maintain and service the inverter.
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1 Safety Instruct ions User Manual
, the inverter can be
Before Installation
There is a risk of injury due to improperly handl ing the device!
Always fol low the instructions contained in the manual when moving and
positioning the inverter.
The weight of the equipment can cause injuries, serious wounds, or bruise if
improperly handled.
The device is thoroughly tested and strictly inspected before del ivery. Damage
may stil l occur during shipping.
If there is visible damage to the packaging or the inner contents, or anything
missing, contact the device d ea ler.
During Installation
Prior to installing the inverter onto the wall, it is crucial to make certain that
the inverter is not electrically connected.
System performance loss due to bad vent ilat ion!
The device requires good ventilation during operation. It is essent ial to keep
the device upright and nothing covering the heat sink to ensure that the
device interior is well cooled down.
During Electrical Connection
All electrical connections must be conducted in accordance with local and
national standards.
Only with the permission of the local energy sector
connected into the ut ility grid.
2
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User Manual 1 Safety Instruct ions
All cables must be firmly attached, undamaged, properly insulated and
Always keep in mind that the inverter is power supplied by dual power
Lethal voltage!
PV arrays wil l produce electrical energy when exposed to sunlight and thus
can create an electrical shock hazard.
Wiring of the PV arrays should be performed only by qual ified personnel.
adequately dimensioned.
During Inverter Operat ion
Do not open the enclosure when the inverter is under voltage. There is a highly
unlikely risk of explosion in very specific cases of fault. The enclosure will protect
persons and property from such an explosion, only if it is correctly sealed.
There is a risk of inverter damage or personal injury!
DO NOT disconnect DC connectors while the inverter is under AC load! First
de-energize the device from dual power sources and then verify that there is
no voltage present.
There is a risk of burn!
DO NOT touch the device hot parts (such as heat sink) during operat ion. Only
LCD display panel and DC switch can be touched during inverter operation.
Maintenance and Service
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1 Safety Instruct ions User Manual
sources: PV arrays and ut ility grid.
electrical connection and
Any fault that may impair the inverter safety functions must be repaired
There is a risk of inverter damage or personnel injury due to incorrect service
work!
Before any service work, you should obey the fol lowing procedures.
Disconnect inverter from the utility grid first and then PV arrays;
Wait at least 10 minutes unt il the inner capacitors discharge completely;
Verify that no voltage and current present with appropriate test ing device.
Keep non-related persons away!
A temporary warning sign and barrier must be posted to keep non-related
persons away for any period while performing
service work.
immediately before the inverter is restarted.
Inverter contains no owner serviceable parts inside. Please contact local
authorized personnel if any service work is required.
Servicing of the device in accordance with the manual should never be
undertaken in the absence of proper tools, test equipments or more
recent revision of the manual which is clearly and thoroughly understood.
Only qualif ied personnel are allowed to open the top cover!
There is a risk of inverter damage if it is improperly serviced.
Use only accessories and spare parts approved by the inverter manufacturer.
Never modify the inverter or its components. Otherwise, it wil l cause loss of
any or all warranty rights.
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User Manual 1 Safety Instruct ions
There is a risk of inverter damage due to electrostat ic discharge!
The printed circuit boards contain components sensitive to electrostatic
discharge. Wear a grounding wrist band when handl ing the boards. Avoid
unnecessary touch with the boards during replacement.
Others
The selected country settings can be changed only by service personnel!
Unauthorized alternation of the country sett ings is prohibited. Otherwise it
may cause a breach of the type-certificate marking.
All safety instruct ions, warning labels and nameplate on the inverter body:
Must be clearly visible;
Must not be removed, covered or pasted.
These regulations should also be fol lowed:
The regulations related to the electricity fed into grid;
The safety instructions related to the PV arrays;
The safety instructions related to other electrical devices.
5
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2 Product Introduction
Grid Dispatch Center
K
Control signal
Household Load
A B
C D
E
F
Item
Description
Remark
A
PV strings
Monocrystalline silicon, polycrystalline silicon, and
B
Inverter
SG8KTL-EC, SG10KTL-EC and SG12KTL-EC.
C
Metering device
Meter cupboard with power distribution system.
2.1 Intended Usage
The inverters, which are 3-phase string inverters without transformer, are crucial
units between the PV strings and utility grid in the small-scaled PV power system.
Inverter is dedicated to converting the DC power generated by the PV modules into
AC power, which conforms to the parameters of local ut ility grid, and feeds the
alternating current into the utility grid. The intended usage of the inverter is
illustrated in Fig. 2-1.
By sett ing the upper limit of feed power, the inverter will run with power derat ing
once the meter detects that the output power is greater than the set value.
Any other or addit ional usage is not permitted except the intended usage.
Where the posit ive or negat ive terminal of PV strings needs to be grounded,
inverter cannot be connected to PV modules.
Fig. 2-1 PV Power System
thin-film of protection class II without grounding.
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User Manual 2 Product Introduct ion
Item
Description
Remark
D
Smart energy
Three-phase electronic energy meter, used to measure
via RS485 port.
E
Utility grid
TT, TN-C, TN-S, TN-C-S.
F
Household load
Household appliances.
3
1
2
MPPTs parallel
configuration!
4
10
6
5
7
8
9
No.
Name
Description
1
LCD display panel
Human-computer interaction interface for looking up
running information and configuring parameters.
2
Side grips
The side grips are designed for holding the unit when
3
PV input parallel lid
(SG12KTL-EC)
There are two parallel blocks for PV input mode
configuration under the lid.
4
Ventilation holes
Ensure sufficient heat dissipation.
5
Handles
The handles are designed for transporting, installing
and dismantling the inverter.
6
AC connection
terminal
Inverter feeds power to utility grid via this terminal.
7
DC terminals
There are four pairs of DC terminals for PV input on
the bottom of the inverter.
8
DC switch
During normal operation it is in “ON” position. It can
meter (optional)
the active power output. Communicate with the inverter
2.2 Product Description
2.2.1 Inverter Appearance
Fig. 2-2 Inverter Appea rance
mounting, moving or servicing the inverter.
7
shut down the inverter immediately in “OFF” position.
Page 16
2 Product Introduct ion User Manual
No.
Name
Description
9
Communication
connection terminals
They are RS485 communication ports, Ethernet
communication ports and DI/DO ports.
10
Second PE terminal
As specified in EN 50178
Type
W(mm)
H(mm)
D(mm)
Net weight(kg)
SG8KTL-EC
535
710
220
36
SG10KTL-E
C
535
710
220
36
SG12KTL-E
C
535
710
220
45
2.2.2 Inverter Dimensions
Fig. 2-3 Outline Dimensions
Tab. 2-1 Dimension Values
2.2.3 LCD Display Panel
As a human-computer interaction interface, LCD display panel is on the front panel
and comprises LED indicators, buttons and LCD screen.
LED indicators indicate the working status of the inverter.
By pressing the buttons user can look up information and configure parameters.
LCD screen shows the current running informat ion.
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User Manual 2 Product Introduct ion
No.
Name
Description
1
LED indicators
“RUN” and “FAULT”. The current state can be known from
the two indicators. Detailed definition is shown in Tab. 2-2.
2
Buttons
User can operate the LCD menu of the inverter via the two
3
LCD Screen
LCD screen can display the current state, current running
set.
Name
State
Description
The inverter is feeding power to the utility grid or in derating
Blinking
The inverter is in the process of startup.
Off
Other states.
On
Communication error, permanent fault, or upgrade failure.
Blinking
Other faults (alarms excluded).
Off
No fault occurs.
Fig. 2-4 LCD Display Panel
buttons. Detailed function is shown in Tab. 10-1.
information, historical information, and parameters to be
Tab. 2-2 Description of LED Indicators
On
“RUN”
“FAULT
”
operation.
2.3 Technical Description
2.3.1 Circuit Description
Fig. 2-5 shows the main circuit of inverter.
The boost circuits raise the input DC voltage. Two string MPP trackers can be ut ilized
to ensure the maximum power from PV arrays. Then the inverter circuit converts DC
power to AC power. Three-level inverter circuit converts the DC power into AC power,
which will be fed into the utility grid via AC terminal. Meanwhile inverter is equipped
with protective circuit to guarantee its safety operation which can trigger the AC
relay if required.
Addit ionally, a DC switch is integrated for safe disconnection of DC current. The
inverter provides RS485 ports and NET ports for communication. Users can look up
running data and set parameters through LCD display panel.
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2 Product Introduct ion User Manual
+
DC Switch
DC
EMC
Filter
+
+
Three-level
Inverter Circuit
L1
L2
L3
N
PE
AC Relay
Grid
AC
EMC
Filter
AC
Reactor
+
-
-
MPPT1
(Boost)
MPPT
2
(Boost)
DC
EM
C
Filter
DC 1
DC 2
LCD Display Panel
Communication Interface RS485/Etherent
DC2
DC1
Fig. 2-5 Main Circuit Diagram of Inverter
2.3.2 Funct ions Description
Inverter functions can be grouped as the following:
Conversion function
Inverter converts the DC power into the AC power, which conforms to the grid
requirements of its installat ion country.
Data storage and display
Inverter archives essential data including running information and fault records,
and displays them on the integrated LCD display.
Parameters configuration
Inverter provides various parameters configuration for optimal operation.
Communication interfaces
RS485 serial communicat ion with RJ45 ports (RS485-1 and RS485-2), Ethernet
communication with RJ45 ports (Net-1 and Net-2), DI and DO terminals.
Earth fault alarm
With the standard Ethernet interface equipped, the inverter can be connected to
the router via a network cable. Then both the inverter information and alarm
signals will be uploaded to the cloud server SolarInfo Bank. When the server
receives an earth fault signal, it will automatically send warning e-mail to the
registered user. Inverter also provides a dry-contact (DO1 relay) for the local alarm
of earth fault.
Zero export (0% feed-in funct ion, opt ional)
At the grid-connect ion point, the three-phase SUNGROW Energy Meter is used
for measuring the feed-in p ower. Enable the feed sett ing and set the limit value
via the LCD menu. Then the inverter will run with power derating once the meter
detects that the feed-in power is above the set value.
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User Manual 2 Product Introduct ion
Protect ion functions include:
− Short circuit protection
− Insulation resistance detect ion and alarm
− Inverter output voltage monitoring
− Inverter output frequency monitoring
− Residual current monitoring
− DC injection of AC output current surveillance
− Anti-islanding protection
− DC over-voltage protection
− DC Over-current protection
− Power module over-temperature protect ion
11
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3 Unpacking and Storing
When moving the inverter, please follow the symbol instructions on the
3.1 Unpacking and Inspecting
The device is thoroughly tested and inspected before delivery. Although sturdy
packaging is used, damage may still occur during shipping.
If there is visible damage to the packaging or the inner contents, or anything missing,
contact the device dealer.
Do not dispose of the original packaging. It is the best choice to store the inverter in
the original packaging.
During unpacking, cut the green plast ic straps and lift the full upper-part of the
carton box. Do not cut the sticky tape.
Fig. 3-1 Single Inverter in Original Packaging Carton(unit: mm)
3.2 Moving the Inverter
In order to avoid damage to the inverter during moving, it is better to move inverter
in the original carton.
Pay attention to the weight. Proper device that can bear the weight is needed to
avoid inverter damage or person injury when moving.
packaging box.
12
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User Manual 3 Unpacking and Storing
SUNGROW POWER SUPPLY CO
.
, LTD.
WWW.SUNGROWPOWER.COM
MADE IN CHINA
1
2
4
3
max. Input current
Type
S/N
SG12KTL-EC
DC-Input
200V
DC1:24A/DC2:12A
900V
1000V
19.3A
50Hz
12000W
Ⅰ
IP65
-25°C…+60°C
III[MAINS],II[PV]
AC-Output
3/N/PE, 230/400V
max. Input voltage
max. MPP voltage
min. MPP voltage
Rated output power
Rated output voltage
Rated output frequency
Max. Output current
Safety Class
Enclosure
Ambient temperature
Overvoltage Category
GRID-CONNECTED INVERTER
Grid Monitoring: VDE 0126-1-1 VDE-AR-N 4105
Max. apparent power SEmax
Displacement factor
Range adjustable
13330VA
0.8 under-excited to
0.8 over-excited
100923004
12000W
Max. Active power PEmax
DC1:30A/DC2:15A
Isc PV
SUNGROW POWER SUPPLY CO., LTD.
WWW.SUNGROWPOWER.COM
MADE IN CHINA
1
2
4
3
max. Input current
Type
S/N
SG10KTL-EC
DC-Input
200V
DC1:22A/DC2:11A
900V
1000V
15.3A
50Hz
10000W
Ⅰ
IP65
-25°C…+60°C
III[MAINS],II[PV]
AC-Output
3/N/PE, 230/400V
max. Input voltage
max. MPP voltage
min. MPP voltage
Rated output power
Rated output voltage
Rated output frequency
Max. Output current
Safety Class
Enclosure
Ambient temperature
Overvoltage Category
GRID-CONNECTED INVERTER
Grid Monitoring: VDE 0126-1-1 VDE-AR-N 4105
Max. apparent power SEmax
Displacement factor
Range adjustable
10526VA
0.8 under-excited to
0.8 over-excited
100923002
10000W
Max. Active power PEmax
DC1:28A/DC2:14A
Isc PV
SUNGROW POWER SUPPLY CO., LTD.
WWW.SUNGROWPOWER.COM
MADE IN CHINA
1
2
4
3
max. Input current
Type
S/N
SG8KTL-EC
DC-Input
200V
DC1:22A/DC2:11A
900V
1000V
11.6A
50Hz
8000W
Ⅰ
IP65
-25°C…+60°C
III[MAINS],II[PV]
AC-Output
3/N/PE, 230/400V
max. Input voltage
max. MPP voltage
min. MPP voltage
Rated output power
Rated output voltage
Rated output frequency
Max. Output current
Safety Class
Enclosure
Ambient temperature
Overvoltage Category
GRID-CONNECTED INVERTER
Grid Monitoring: VDE 0126-1-1 VDE-AR-N 4105
Max. apparent power SEmax
Displacement factor
Range adjustable
8000VA
0.8 under-excited to
0.8 over-excited
100923004
8000W
Max. Active power PEmax
DC1:28A/DC2:14A
Isc PV
Item
Description
Item
Description
1
SUNGROW logo and product
type
3
Marks of certification institutions
2
Technical data
4
Company name, website and
origin
Icon
Description
CE mark of conformity.
The inverter is in compliance with directives of CE.
3.3 Identifying Inverter
Two nameplates are attached to the side of the inverter and the carton respect ively.
They provide information about the inverter type, the most important specifications,
marks of cert ification inst itutions, website and serial number which are available
and identified by SUNGROW.
Fig. 3-2 Nameplates of Inverters
*Image shown here is for reference only. Actual product you receive may differ.
Tab. 3-1 Descript ion of Icons on the Nameplate
Do not dispose of the inverter with the household waste.
Refer to the corresponding instructions.
TUV mark of conformity.
The inverter is in compliance with directives of TUV.
13
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3 Unpacking and Storing User Manual
A
B
C D
G
E
F
J
IH
K L
MPPTs parallel configuration!
Item
Description
A
Inverter.
B
Wall bracket used to mount inverter onto the wall.
C
Expansion bolts for fastening wall bracket onto concrete wall.
D
Fastener set for installing wall bracket onto metal frame.
E
Theft-proof device used to lock the inverter to the wall bracket.
F
PV input connectors, including positive and negative connectors.
G
Four-pole plugs for DI connection.
H
Three-pole plugs for DO connection.
I
Five M4 screws for second PE connection and spare.
J
Two pairs. Seal the unplugged PV connectors with sealing caps.
K
AC connector.
L
Related documents, including quality certificates, quick user manual, CD,
packing list and product test reports.
3.4 Delivery Contents
Fig. 3-3 Deli very Contents
*Image shown here is for reference only. Actual product you receive may differ.
14
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User Manual 3 Unpacking and Storing
-30℃+85
℃
Relative Humidity:
0~
100%
3.5 Storing the Inverter
If you do not install the inverter immediately, choose an appropriate location to store
it.
The device must be stored in original packaging and the desiccant must be left in
the packaging.
The device must be stored in a clean and dry place to protect against dust and
moisture.
The storage temperature should be always between -30°C and +85°C. And the
storage relative humidity should be always between 0 and 100%.
It is very important to keep the packing away from chemicals. Otherwise it will
lead to corrosion.
During the storage time, check periodically for visible damages by rodents.
Replace the packaging if necessary.
If there is more than one inverter to be stored, the maximum layers for original
paper packaging are three.
After long-term storage, local installer or Service Dept. of SUNGROW should
perform a comprehensive test before connecting the inverter into PV power
system.
Fig. 3-4 Example for Inverter Storage
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4 Securing Inverter to the Wall
3. Do not install the unit on wall of flammable
Flammable wall
material
4. Do not install the inverter where contains
Flammable material or
gas near the installation
4.1 Selecting Installation Location
Select ing an opt imal installat ion location for the inverter is decisive for its operating
safety as well as its expected efficiency and service life.
1. Take the load capacity of the wall into account. The wall (such as concrete wall and
metal structure) should be strong enough to hold the weight of the inverter over a
long period.
2. Install the device where is accessible for installing, electrical connect ion or service.
materials.
flammable materials or flammable gas in the
vicinity of the installat ion site.
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User Manual 4 Securing Inverter to the Wall
5. Install the device at eye level for easy buttons
6. It is suggested that the inverter be installed
Forward tilt Backward tilt Horizontally
Upside down
operation and display reading.
vertically with upside up for good heat
dissipation.
7. Never install the inverter horizontally, or with a forward tilt or with a backward tilt
or even with upside down.
8. The inverter with IP65 can be installed indoors or outdoors.
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4 Securing Inverter to the Wall User Manual
9. The ambient temperature should
Max. ambient temperature:
+60°C
Min. ambient temperature:
-25°C
Max. relative humidity:
+100%
Snow
accumulation
Direct rain fall
Direct sunlight
12. Take enough space for convection into
range from -25°C to 60°C. The power
output will reduce when the ambient
temperature exceeds 45°C.
10. The maximum relat ive humidity
of chosen installat ion site can reach
100%.
11. Avoid exposing the inverter to direct sunlight, rain or snow to extend its service
life despite of IP65 rating. Shaded site of the building would be better.
considerat ion during installat ion.
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User Manual 4 Securing Inverter to the Wall
13. For mult iple inverters installation, posit ion
Closed Cabinet
the inverters side by side. For multi-row
inverters installat ion, position the inverters in a
staggered arrangement.
14. Do not install the inverter in an enclosed space. Otherwise, the inverter will not
operate normally.
15. Do not install inverter where children can reach.
16. Do not install the inverter in resident ial area. Noise can be produced during the
inverter running and may affect your daily life.
4.2 Moving Inverter to Installation Site
If the inverter is to be installed, remove the device from the packaging and move it to
the chosen installation site. During the moving process, the instruct ions below
should be obeyed.
1. Beware of the weight of the inverter.
2. Grasp the equipment with both hands by means of the side grips.
3. Move the inverter with the help of another person or the lift ing device.
4. Do not release the equipment unless it has been firmly secured to the wall.
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4 Securing Inverter to the Wall User Manual
585
300
553.3
240
65 15
M10
45
M10
4.3 Installing the Inverter
Inverter is installed onto the wall by means of wall bracket in the packaging.
Fig. 4-1 Dimensions of wall bracket(unit: mm)
There are two sets of stainless fasteners supplied to attach the wall bracket to the
concrete wall and metal frame respect ively.
Fig. 4-2 Dimensions of Expansion Bolt Set for Concrete Wall(unit: mm)
Fig. 4-3 Dimensio ns of Fastener Set for Metal Frame(unit: mm)
For Concrete Wal l
1. Remove wall bracket and fasteners from the packaging.
2. Place the wall bracket onto the chosen concrete wall and adjust it until it is in
a horizontal posit ion.
3. Mark the positions to drill holes using the wall bracket as the template.
4. Drill holes according to the marks you have made.
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User Manual 4 Securing Inverter to the Wall
when mounting the
No.
Description
1
Concrete wall
2
Expansion cylinder (M10x80)
3
Wall bracket
4
Washer
5
Spring washer
6
Hexagonal socket nut
In order to avoid electrical shock or other injury, inspect if there is electricity or
plumbing installations before drilling holes.
5. Attach the wall bracket to the wall with the supplied expansion bolt set. The
torque for fastening the nut should be at least 35 Nm.
Fig. 4-4 Fasten the Wall bracket against Concrete Wall
6. Lift up the inverter above the wall bracket with the help of other people and
then slide down. Make sure that the lag screws on the back of the inverter and
grooves on the wall bracket engage perfectly.
The Instal lers must wear gloves to avoid scratches
inverter.
7. To protect the inverter from theft, you can lock it to the wall bracket with a
theft-proof device and a padlock.
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4 Securing Inverter to the Wall User Manual
No.
Description
Remark
1
Hexagonal socket nut
M10
2
Spring washer
------
3
Washer
------
4
Hexagonal bolt
M10x45
5
Metallic wall
------
6
Wall bracket
------
On Metal Frame
If the chosen mounting locat ion is metal frame, please proceed as follows to mount
the inverter.
1. Remove the supplied wall bracket from the packaging.
2. Choose the best installation site according to above requirements. Place the
wall bracket onto the chosen metal frame and adjust it until it is in a
horizontal position.
3. Mark the positions to drill holes by using the wall bracket as the template.
4. Drill holes according to the marks you have made.
If the shape of the metal frame does not f it the holes on the wall bracket,
you need to re-drill holes on the wall bracket at appropriate position
according to the chosen frame.
5. Fasten the wall bracket against the metal frame with bolts and nuts. The
dimensions of fasteners used in the following diagram are recommended.
The torque for fastening the nut is 35 Nm.
6. Lift up the inverter above the wall bracket with the help of other people and
then slide down. Make sure that the lag screws on the back of the inverter and
22
Fig. 4-5 Fasten Wall bracket against Metal Frame
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User Manual 4 Securing Inverter to the Wall
when mounting the
grooves on the wall bracket engage perfectly.
The Instal lers must wear gloves to avoid scratches
inverter.
7. To protect the inverter from theft, you can lock it to the wall bracket with a
theft-proof device and a padlock.
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5 Electrical Connection
operation during the wiring process can cause fatal injury to
Once the inverter is firmly attached to the appropriate location, it can be connected
into the PV power system.
Improper
operators or unrecoverable damages to the inverter.
Only qualif ied personnel can perform the wiring work.
Prior to any electrical connect ion, keep in mind that the inverter has dual power
supplies. It is mandatory for technical personnel to wear personal protective
equipments during the electrical work: helmet, footwear and gloves.
5.1 Overview of Electrical Connection
Connect ing inverter to the exist ing PV system includes connect ing inverter to local
grid and connecting inverter to PV arrays. There may be communication connection
for monitoring if necessary.
All electrical connect ions should follow the National Wiring Rules of Standard
AS/NZS 3000. The requirements in AS 4777.1 and AS/NZS 3000 indicate that a DC
isolator must be used before the inverter.
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User Manual 5 Electrical Connect ion
MPPTs parallel configuration!
-
A
B
C
E G
- - -
PE
Webserver Explorer
SolarInfo Bank Explorer
Internet
D
RS485
Ethernet
Internet
Webserver Explorer
F
Item
Description
Remark
A
PV arrays
The maximum open-circuit voltage of each PV string is
1000 V.
B
SolarInfo logger
It can be ordered from SUNGROW. Or use compatible
C
Remote PC
User uses this device to monitor the whole PV system.
D
Router/Switch
Used as data transferring device between inverter and
monitor the whole PV
system
E
AC circuit breaker
Used as a protective device during electrical
maximum output voltage and current.
F
Smart energy
Three-phase electronic energy meter, used to measure
output. Communicate with the
inverter via RS485 port.
G
Utility Grid
Rated AC voltage is 230 V.
Fig. 5-1 Electrical Connect ion Diagram
logger from Meteo-Control, Solar-Log or Papendorf SE
the Internet/Webserver, to
meter (optional)
connection. User equips this device according to the
the active power
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MPPTs parallel
configuration!
1
2
3
4
5
Item
Description
1
AC connector: Amphenol C16_L
2
DC1/DC2: DC connectors, MC4
3
Integrated DC switch
4
Communication waterproof connectors
5
Second PE Terminal
5.2 Terminals Description
All electrical terminals are located at the bottom of the inverter. Fig. 5-2 shows the
connect ion area.
Enough space around the inverter should be kept for electrical connect ion
when choosing the installat ion site.
Fig. 5-2 Terminals Description
5.3 Meter Connect ion (optional)
The smart energy meter is installed between the air breaker and the grid. It measures
the feed-in power and communicates with the inverter through RS485 connect ion.
This sect ion describes the power cables connect ion of the meter.
The following figure shows the cable requirements and connection.
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User Manual 5 Electrical Connect ion
Only after receiving prior approval from the local grid company as
Inverter Type
Specification for AC Circuit Breaker
SG8KTL-EC
30A
SG10KTL-EC
30A
SG12KTL-EC
32A
The recommended cross-sect ion area of conductor is 16 mm2.
The length of insulation to be stripped off is 10 mm~13 mm.
*Image shown here is for reference only. For the detailed informat ion, see the user
manual of meter.
5.4 Connecting Inverter to Grid
5.4.1 AC Side Requirements
required, should you connect the inverter to the grid.
The grid should meet the following requirements. Otherwise the inverter will
not work.
Gri d Vol t age 180~276V
Grid Frequency 45~55Hz
AC Side Circuit Breaker
An independent three or four-pole circuit breaker for the inverter must be installed at
the output side to ensure that the inverter can be securely disconnected under load.
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It is not al lowed for several inverters to use the same circuit breaker.
230 235 240 245
250 255 260
0
0.5
1
1.5
2
Max. allowable grid impedance [Ohm
]
Grid voltage w
ithout load[V]
265
2.5
It is not allowed to connect loads between the inverter and circuit breaker.
Residual Current Device
With an integrated universal current-sensitive residual current monitoring unit inside,
the inverter is able to distinguish the fault currents from normal capacitive leakage
currents. The inverter will disconnect from mains as soon as a fault current with value
exceeding the limit has been detected.
However if an external RCD or residual current breaker is mandatory, the switch must
be triggered at a failure current of 300 mA or higher.
Requirements of Multiple Inverters in Parallel Grid Connection
If several inverters are operated in parallel connection to grid, different requirements
should be obeyed (See technical information “Technical notes for
multiple-paralleled grid-connected inverters” in the download area of SUNGROW
website).
AC Cable Requirements
The grid is connected to the inverter via 5 wires (L1, L2, L3, N and PE). Feed-in power
is always three-phase via AC terminal at the bottom of the device.
Consider the following facts when selecting AC cables specif ications and types:
The grid impedance of the AC cable must correspond to the specification to avoid
unintended disconnect ion from the grid or derat ing of the output power.
The maximum length of the cables depends on the cable cross-sect ion area, as
shown in the following table. Note that the power loss of the cables should be
within 1% of the nominal power.
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User Manual 5 Electrical Connect ion
Type
Single Conductor Cross
Section
Total Outer cable
diameters
Maximu
Range
Recommen
ded
Range
Recommended
SG8KTL-EC/
SG12KTL-EC
4…10 mm²
WG7)
4…10 mm²
WG7)
All AC cables should be equipped with correctly colored cables for
1. Unscrew the water-proof terminal in the
m Cable
Length
SG10KTL-EC/
Withstand ambient temperature;
Layout type (inside wall, underground, free air etc.);
UV resistance and so on.
(AWG11…A
(AWG11…A
11…20
mm
mm 100 m
15
5.4.2 Assembling AC Cables to Connector
The inverter is equipped with water-proof connector for AC connection, which
matches with the AC terminal at the bottom of the inverter.
Danger to human l ife due to high voltage inside the inverter!
Make sure that al l the AC cables to the inverter are not live before the
electrical work.
Do not turn on the AC circuit breaker until all electrical connections are
completed.
Prior to connecting to the ut ility grid, verify whether the grid voltage and frequency
are within the range of inverter output parameters, referred to “12 Appendix”.
Consult local grid company for solution, if otherwise.
dist inguishing. Please refer to related standards about wiring color.
AC Wiring Procedure
following direct ion.
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2. Insert appropriate size AC cables into the
n is
12
43
1：N 2：L1 3：L2
4：L3
：PE
5. Pull cables outwards to confirm whether they are installed firmly.
by qualif ied
water-proof terminal.
3. Strip off insulat ion layer of all AC cables.
The length of strip insulat io
approximately 10 mm.
4. Fix all cables ends to the corresponding
terminals with the torque of 1 Nm
according to markings on the connector,
especially “PE” cable. If a phase wire is
connected to the “PE” terminal, the
inverter will not function properly.
6. Combine the two front-end parts together with the torque of 2 Nm.
7. Tighten the water-proof terminal with the torque of 5 Nm in opposite
direct ion.
8. Make sure the AC and DC circuit breakers are disconnected.
9. Connect phase cables and “N” cable to AC circuit breaker.
− Plug AC connector to corresponding AC terminal.
− Screw AC cables except the “PE” cable to the AC circuit breaker.
10. Connect AC circuit breaker to the ut ility grid.
11. Make sure all AC cables are firmly installed.
5.5 Connecting Inverter to PV Arrays
Lethal voltage exists!
PV arrays produce electrical energy when exposed to light and thus can create
an electrical shock hazard. Wiring should be performed only
personnel.
Make sure that the maximum parasit ic capacitance of the inverter is less than
(0.12 uf/kW) * 8 kW/10 kW/12 kW, otherwise the inverter will not funct ion
properly.
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User Manual 5 Electrical Connect ion
Before connect ing the PV arrays to the inverter, make sure that the
MPPT2MPPT1
Inverter Inside
PV Input 1
PV Input 2
impedances between the positive terminal of the PV string and Earth and the
impedances between the negative terminal of the PV string and Earth are
larger than 200 Kohm.
There is a risk of inverter damage! The fol lowing requirements should be met,
otherwise they will lead to loss of any or al l warranty rights.
Make sure that the maximum short circuit current of each DC input is less than
the inverter allowable limit.
Make sure that the maximum open voltage of each string is less than 1000 V.
Voltage over 1000 V can damage the inverter.
If the input line is changed, such as input line falls off, panels
configurat ion modif ied, etc. Yo u need to reset the work mode.
5.5.1 PV Inputs Conf iguration
The inverter has two PV input areas DC1 input and DC2 input, each with its MPP
tracker. The two PV inputs can be configured in independent mode or parallel mode.
PV Conf iguration Mode-Independent Mode
For independent mode, the two PV inputs work independently, each with its own
MPPT. Therefore the two PV inputs can be different from each other in PV module
types, numbers of PV panels in PV strings, tilt angles and orientation angles of PV
modules.
As shown in the following f igure, the inverter should work in independent mode due
to different orientat ion angles between the two PV inputs.
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DC Power
Limit for
Total Input
Open-circuit
Each Input
Short-circuit
Current Limit
for Each Input
DC1
28 A
DC2
14 A
DC1
28 A
DC2
14 A
DC1
30 A
DC2
15 A
To make sure the maximum DC power, PV strings connected to individual
input area should have a homogenous structure, i.e. the same type, the
same number, the same ident ical tilt and ident ical orientat ion.
Prior to connecting inverter to PV inputs, the following specif ications should be met:
Type Area
SG8KTL-EC
SG10KTL-EC
SG12KTL-EC
8440 W 1000 V
10550 W 1000 V
12650 W 1000 V
Voltage Limit for
In independent mode, when there is only one PV input, the other input may
produce induced voltage. DO NOT touch the unused DC terminals.
Configuration of Independent Mode for SG12KTL-EC
Both the default configurat ion modes of the hardware and LCD screen are parallel.
If you want to configure it to independent mode, please remove the copper bars
between the two terminal blocks and t ighten the screws.
Refer to “10.14 Setting PV Conf iguration Mode” for LCD sett ing modif ication.
Keep the copper bars in a convenient place for future use.
Tighten the PV input parallel lid to the inverter with all 4 fasten screws.
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User Manual 5 Electrical Connect ion
PV input 1
PV input 2
MPPT
Inverter inside
Total DC Power
Open-circuit
Voltage Limit for
Short-circuit
Current Limit for
SG8KTL-EC
8440 W
1000 V
42 A
SG10KTL-EC
10550 W
1000 V
42 A
SG12KTL-EC
12650 W
1000 V
45 A
PV Configurat ion Mode-Parallel Mode
For parallel mode, all PV strings with the same type, the same number of PV panels,
ident ical t ilt and ident ical orientat ion in series can be connected to the same single
input area. Two trackers are configured in parallel by Y-type cable connector terminal
to handle power and/or current levels higher than those a single tracker can handle.
As shown in the following figure, the inverter may choose parallel mode since there
is no difference between the two PV inputs.
Prior to connecting the inverter to PV inputs, the following electrical specif ications
must be met simultaneously:
Type
Limit for Inverter
Each Input
Total Input
Configuration of Parallel Mode for SG8/10KTL-EC
Both the default configuration modes of the hardware and LCD screen are
independent.
If you want to configure it to parallel mode, the terminals in DC1 input and DC2 input
must be short-circuited by Y-type cable connector.
Refer to“10.14 Setting PV Conf iguration Mode” for LCD setting modif ication.
5.5.2 Assembl ing DC Cable to Connector
All DC cables are equipped with water-proof direct plug-in connectors, which match
with the DC terminals at the bottom of the inverter.
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Type
Cross-Section
Outer Cable
Max.
Voltage
Max.
Current
Same with
current.
Same with
current.
Same with
current.
1. Strip off 7 mm insulation layer from
7mm
2. Assemble cable ends with crimp
Positive Crimp Contact
Negative Crimp Contact
3. Lead cable through the cable gland.
Insert the crimp contact into the
insulator unt il it snaps into place.
ly to check if it is
Crimp Contact
Positive Insulator
Cable Gland
The posit ive and negative connectors are marked with polarity symbols
and should be equipped with correctly colored cables.
e.g. Red cable should be connected to DC posit ive terminal while the
blue one should be connected to the negat ive.
DC Cable Requirements
SG8KTL-EC
SG10KTL-EC
SG12KTL-EC
Area Range
4...6 mm
2
11AWG-9AWG
4...6 mm
2
11AWG-9AWG
4...6 mm
2
11AWG-9AWG
Diameters
6…9 mm 1000 V
6…9 mm 1000 V
6…9 mm 1000 V
DC Connector Assembl ing Procedure
all DC cables.
contacts by crimping pliers.
Withstand
Withstand
short-circuit
short-circuit
short-circuit
4.
Then pull gent
correctly engaged.
5. Screw the cable gland to the front
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User Manual 5 Electrical Connect ion
insulator with tightening torque
Negative Insulator
Crimp Contact
Cable Gland
, please visit the
ON
OFF
ON
OFF
RS485-1/RS485-2
NET-1/NET-2
DC1
DC2
AC
DI
DO
2.5…3 Nm.
For further assembly and connection instruction
webpage of the device manufacturer.
5.5.3 DC W iring Procedure
Make sure that none of the DC or AC cables connected to the inverter is live
before the electrical work.
Make sure that the open circuit voltage does not exceed inverter input l imit of
1000 V, even under the lowest operat ing temperature.
PV Connection of Independent Mode
Connect the inverter to PV arrays according to the following procedures:
1. Rotate the DC switch at the bottom to the “OFF” position.
2. Remove the copper bars between the two terminal blocks before any PV
string connect ion.(For SG12KTL-EC)
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480.
0
+
-
reverse connect ion of a single string is prohibited. A
3. Check the cable connection of PV strings for the correct polarity and that the
open-circuit voltage does not exceed the inverter input limit 1000 V, even
under the lowest operating temperature. Refer to module specification
supplied by module manufacturer for detailed information.
The inverter wil l not function properly if the DC polarit ies are reversed.
Check the positive and negative polarity of the PV cel ls. After confirmat ion, you
can insert the DC connectors into the input terminals on the bottom of the
inverter.
For the same MPPT,
permanent failure of the system or inverter may follow if otherwise.
4. Plug the positive and negative DC connectors into corresponding terminals
unt il there is an audible click.
Connect the same PV string to terminals of the same input areas. For example,
connect the positive pole of a string to DC1+ and the negative pole to the
DC1-.
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User Manual 5 Electrical Connect ion
ON
OFF
ON
OFF
RS485-1/RS485-2
NET-1/NET-2
DC1
DC2
AC
DI
DO
* Image shown here is for reference only. Actual product you receive may differ.
5. Connect other PV strings as the same procedures if necessary. Seal unused DC
terminals with the terminal caps.
PV Connection of Parallel Mode
Connect the inverter to PV arrays according to the following procedures:
1. Rotate the DC switch at the inverter bottom to the “OFF” posit ion.
2. Check the cable connect ion of PV strings for the correct polarity and that the
open-circuit voltage does not exceed the inverter input limit 1000 V.
3. Plug the positive and negative DC connectors into corresponding terminals
unt il it click-locks into place.
4. One pair of DC terminals in DC1 input and DC2 input must be short-circuited
by Y-type cable connector terminal. (For SG8KTL-EC and SG10KTL-EC)
5. Connect other PV strings in the same procedures if necessary. Unused DC
terminals should be sealed with the terminal caps.
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Grounding of Inverter AC Side
PV Arrays 1
PV Arrays 2
PV Arrays n
Inverter 1
Inverter 2
Inverter n
Grounding Electrode
Copper Busbar
Mounting Frame of PV arrays
Grounding of PV Power System
PE
Inverter
AC Grounding Electrode
L1
L1
N
AC Circuit Breaker
L2 L3
N
L2
L3
PE
PE
PE
PE
PE
PE
MPPTs parallel
configuration!
MPPTs parallel
configuration!
MPPTs parallel
configuration!
5.6 Grounding the Inverter
Because of the transform-less design of the inverter, DC posit ive pole and DC
negative pole are not permitted to be grounded. The inverter wil l not funct ion
properly if otherwise.
5.6.1 Grounding System Overview
All non-current carrying exposed metal parts of the equipment and other enclosures
in the PV power system should be grounded (e.g., PV arrays frame and inverter
enclosure).
Where there is only one inverter in the PV power system, connect the “PE” cable to
the installation ground.
Where there are mult iple inverters in the PV power system, connect the “PE” cables
of all inverters and mounting frame of PV arrays to the same copper bus bar. In this
way, they are in equipotent ial connect ion.
38
Fig. 5-3 Grounding of Inverter
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User Manual 5 Electrical Connect ion
MPPTs parallel configuration!
M4
Yellow-green
cable
6 mm2-10mm2 copper wire or 10
mm2-16mm2 aluminum wire
5.6.2 Second Protective Earth Terminal
The inverters are equipped with second protective earth terminal as specif ied in EN
50178.
Second PE Terminal
There is a PE terminal on the right side of the inverter. You may choose to connect
the PE.
Second PE Connection
Fig. 5-4 Second PE Terminal
Item Description Specification
A Screw
M4×12 mm
B Spring washer -
C Washer -
D Cable socket -
E
Fig. 5-5 Connect ion of the Second PE Connection
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DI
DO
OFF2 ON2
OFF
1 ON1 COM1
COM2
DI4_N DI4_P DI3_N DI3_P
DI2_N DI2_P DI1_N DI1_P
232 converter or SolarInfo Logger, which
5.7 Communication Connection
5.7.1 Interfaces Overview
All communication terminals are located on the bottom of the inverter.
There are two kinds of optional connection ports on the communication circuit
board: RS485 serial communication with RJ45 ports (RS485-1/2) and Ethernet
communication with RJ45 ports (NET-1/2).
Fig. 5-6 Communication Terminals
For RS485 serial communication, the inverter operation informat ion can be
transferred via RS485 ports to a PC with query software, or to data logging device
(such as MC Logger).
For Ethernet communication, the inverter operation information can be
transferred via NET ports to a PC with query software, or Webserver, or to
SolarInfo Bank via the router.
Before communication connection, prepare communication cables and RJ45 plug.
Cable requirements to ensure qual ity of communication:
Shielded network cable
DI and DO connection cable
A converter such as RS485converts 485 signal to 232 signal, is needed between the inverter and PC.
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Pin 3
Pin 6
RX+
RX-
TX+
TX-
RS232
RS485
Inverter
RS485-1 RS485-2
Communication of single inverter
RS485-232 converter
RS232
PC
RS232
RS485
SolarInfo Logger
RS485
SolarInfo Logger
RS485
PC
RS232
5.7.2 RS485 Communication Connect ion
If the communication system is equipped with SolarInfo Logger, inverters
may be remotely monitored via SolarInfo Bank.
SolarInfo logger and RS485-232 converter are optional parts and can be
ordered from SUNGROW.
For Single Inverter
Where there is only one inverter, Network cable with RJ45 plugs enables connect ion
between the inverter and PC.
Fig. 5-7 Single inverter RS485 communicat ion connection
For Multiple Inverters
Where there is more than one inverter, all inverters can be connected in a “daisy
chain”. The very first and last inverters in the chain must be terminated with a
resistor of 120Ω. The shielding layer of network cable should be single-point
grounded.
The maximum number of inverters connected in the daisy chain depends on
converter, data logging device and other factors. Please refer to converter’s or data
logging device’s manual to obtain the limit.
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Shielding layer is grounded
120
Ω
Inverter 1
RS485-1
Inverter 2
Inverter n
Multiple inverters in daisy chain
120Ω
RS485-232 converter
RS232
PC
RS232
RS485
RS485-2 RS485-1 RS485-2 RS485-1 RS485-2
SolarInfo Logger
RS485
PC
RS232
SolarInfo Logger
RS485
1 2 3 4 5 6 7 8
RS485+ A
RS485- B
Pin 3 and Pin 6 are used
for communication.
- Pin 3 to RS485- B
- Pin 6 to RS485+ A
Corresponding Relationship Between
Cables and Pins:
Pin 1: White-orange; Pin 2: Orange;
Pin 3: White-green; Pin 4: Blue;
Pin 5: White-blue; Pin 6: Green;
Pin 7: White-brown; Pin 8: Brown.
RJ45 Port
RJ45 plug
1
----
8
3
6
Fig. 5-8 Multiple inverters RS485 communicat ion connection
RS485 Connection Procedure
1. Loosen all 6 fasten screws on the communication terminal lid and remove the
lid.
2. Unscrew Thread-Lock Sealing Nut, pull out the Waterproof Sealing Insert
from the port.
3. Lead the network cables through the Thread-Lock Sealing Nut, and the cable
gland.
4. Remove the Clamping Claw and two Seal ing Plugs from the Waterproof
Sealing Insert.
5. Use the Ethernet crimper to crimp the cables and connect cables to RJ45
plugs accord ing to TIA/EIA 568B.
6. Insert the network cables into the Waterproof Sealing Insert. Connect the
RJ45 plugs to the RS485 ports on the communication configuration circuit
board until it makes a clicking sound.
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7. Push the Waterproof Sealing Insert into the cable gland and make sure that all
unused cable openings are sealed with dustproof plugs.
8. According to the position of the inverter, repeat step 6 to connect the other
network cables to the RS485-1 /RS485-2. Network cables with RJ45 plugs can
be directly used to connect between the inverters and form a communication
daisy chain.
9. Pull cables outwards to confirm whether they are fastened firmly.
10. As for the wires which connect to the terminating resistor or logging devices,
use a Network cable crimping plier to strip the insulation layer and connect
the RS485 A and B cables (6 and 3) to terminat ing resistor or data logging
device or RS 485-232 converter.
11. Connect the other devices. Refer to the device manual for the definit ion of
the communication port. The following f igure shows the RS485 connect ion
to the three-phase smart energy meter.
The length of insulation to be stripped off is 5 mm~7 mm.
The wires 3 and 6 are connected to terminals A and B respect ively.
12. Verify the communication connection and configure the communication
parameters.
If there is more than one inverter to communicate with a PC or a data
logger, it is crucial to configure the communication parameters of each
inverter. See “10.13 Setting Communication Parameters ”.
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Inverter
Webserver
Explorer
Webserver
Explorer
Inverter nInverter 2Inverter
1
Router/Switch
SolarInfo
Bank Explorer
Webserver
Explorer
Inverter
Internet
13. If you don’t need to connect other cables, fix all fasten screws to the
communication terminal lid, push the Waterproof Sealing Insert back to
communication ports and tighten the Thread-Lock Sealing Nut firmly to the
cable gland.
5.7.3 Ethernet Communication Connection
You can connect the inverter to PC through NET ports to set up Ethernet
communication. Network cable with RJ45 plugs enables connect ion between the
inverter and PC.
The Ethernet communication can be connected either in single, daisy chain or star
topology.
Fig. 5-9 Direct network connection of single inverter
Fig. 5-10 Direct network connect ion of inverters
Fig. 5-11 Single inverter network connection
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Router
/Switch
SolarInfo
Bank Explorer
Webserver
Explorer
Inverter nInverter
2Inverter 1
Router/Switch
Inverter 1
SolarInfo
Bank Explorer
Webserver
Explorer
Inverter 2
Inverter n
The Network cable should be less than 100 m.
Fig. 5-12 Inverters network connection in daisy chain topology
The network communication of the daisy chain is done via the inverter in-built
switching chip. Therefore, when the inverter is damaged or enters the low power
consumption status, the switching chip cannot work normally and the daisy chain
communicat ion will be interrupted.
Fig. 5-13 Inverters network connect ion in star topology
The star topology network connect ion is recommended for optimal operation.
The maximum number of inverters connected depends on switch, router and other
factors. Please refer to switch’s or router’s manual to obtain the limit.
By logging into the Webserver explorer you can view and set the operation
parameters of a single inverter. Please refer to “6 Visiting and Configuring the
Webserver” for detailed operat ion of the Webserver.
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The related parameters settings can be changed only by qualified
RS485 and Ethernet communicat ion connect ion cannot be used
simultaneously due to their different communicat ion protocols,
Corresponding Relationship Between
Cables and Pins:
Pin 1: White-orange; Pin 2: Orange;
Pin 3: White-green; Pin 4: Blue;
Pin 5: White-blue; Pin 6: Green;
Pin 7: White-brown; Pin 8: Brown.
RJ45 Port
RJ45 plug
1
----8
personnel!
communicat ion abnormal will occur if otherwise.
Ethernet Connection Procedure
1. Loosen all 6 fasten screws on the communication terminal lid and remove the
lid.
2. Unscrew Thread-Lock Sealing Nut, pull out the Waterproof Sealing Insert
from the port.
3. Lead the network cables through the Thread-Lock Sealing Nut, and the cable
gland.
4. Remove the Clamping Claw and two Sealing Plugs from the Waterproof
Sealing Insert.
5. Use the Ethernet crimper to crimp the cables and connect cables to RJ45 plug
according to TIA/EIA 568B.
6. Insert the network cables into the Waterproof Sealing Insert. Connect the
RJ45 plugs into the NET ports on the Communication Configurat ion Circuit
Board unt il it makes a clicking sound.
7. Push the Waterproof Sealing Insert into the cable gland and make sure that all
46
unused cable openings are sealed with dustproof plugs.
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User Manual 5 Electrical Connect ion
Item
Type
Description
DI: 5 cores cable(5×0.94 mm²)
Total diameter: 12~13.5 mm
2
Stripping plier
--
3
Three-pole and four-pole plugs
Within the scope of delivery.
4
Screwdriver
--
8. Repeat step 1 to step 7 to connect the other inverters with Network cables.
9. Pull cables outwards to confirm whether they are fastened firmly.
10. Plug the other end of network cables into the sockets of the switch or rout er,
connect the switch or router to a PC. Refer to the device manual for the
definition of the communicat ion ports.
11. Verify the communication connection and configure the communication
parameters.
If there is more than one inverter to communicate with a PC, it is crucial
to conf igure the communication parameters of each inverter. See “10.13
Setting Communication Parameters ”.
12. If you do not need to connect DI and DO cable, f ix all fasten screws to the
communication terminal lid, push the Waterproof Sealing Insert back to
communication opening and t ighten the Thread-Lock Sealing Nut firmly to
the cable gland.
5.7.4 Power Control Configuration
There are two terminals located on the bottom of the inverter for power control
configurat ion: DI and DO.
Prior to DI/DO connection, please prepare addit ional materials:
1 DI/DO connection cable
Power Control Settings
The inputs of DI can be used to connect a ripple control receiver for active power
control, it set as active power control by default. Please refer to “6.6 Power Control
Configuration” for DI programming.
Each state has seven functions to choose from, different statues of four digital inputs
are the configurat ion functions of corresponding actions:
Active power limitat ion setting (0-100%)
Reactive power rat io setting (0-100%)
Power factor sett ing (0.800-1.000)
Total diameter: 7.5~8.5 mm
DO: 4 cores cable(4×2.5
47
mm²)
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Inverter nInverter 2Inverter 1
1
2
3
4
5
6
Start
Sto p
Active power limitat ion and reactive power ratio sett ing
Active power limitat ion and power factor setting
Where there is only one inverter, users can perform default active power limitat ion
function by connecting the inverter to the ripple control receiver.
Where there are several inverters, set the inverter directly connected to the ripple
control receiver via LCD display or Webserver as the master inverter (communication
role). Select proper communication interface in Webserver according to the
communication cables among the inverters.
If the RS485 communication is adopted, close al l other monitoring devices that
use this RS485 communication during grid dispatch.
Default function conf iguration of DI is act ive power limitat ion: 0%, 30%, 60%, 100%.
To change this sett ing, please login to the Webserver.
The abovementioned sett ings are needed only during inverter initial ization or
after the load defaul t operat ion.
The inverter can be linked via Ethernet/RS485 so that the inverter connected to the
power grid dispatch device (ripple control receiver) can transmit the information
received to other inverters.
In the Ethernet communicat ion connect ion, only one inverter can be set
as master inverter, others shall be set as slave inverters.
Fig. 5-14 Connect the ripple control receiver for inverters with RS485 connect ions
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Item
Description
Item
Description
1
Master inverter
4
5-conductor connection at digital input
2
Slave inverter
5
Ripple control receiver
3
RS485 connection
6
Grid
Item
Description
Item
Description
1
Master inverter
5
5-conductor connection at digital input
2
Slave inverter
6
Ripple control receiver
3
Ethernet cable
7
Grid 4 Router
-
-
4.5cm
Fig. 5-15 Connect the ripple control receiver for inverters with Ethernet connect ions
Connect the cables to DI terminal block according to the terminal assignment.
1. Strip approximately 4.5 cm of protective layer off the DI cables.
2. Lead the DI connect ion cables through water-proof terminal and the
communication terminal lid.
3. Strip approximately 6 mm of insulat ion off the insulated wires.
4. Release the sockets of the four-pole plug with a screwdriver and insert
individual insulated conductors into corresponding pins of the four-pole plug
according to markings shown below:
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DI
4
_
N
DI4_P
DI3_N
DI3_P
DI2_N
DI2_P
DI1_N
DI1_P
Ripple control
receiver
DI4_N
DI2_N
DI4_P
DI2_P
DI1_P
DI3_P
DI1_N
DI3_N
5. Pull cables outwards to confirm whether they are installed firmly.
6. Connect the four-pole plug to the DI connection socket.
7. Connect the ripple control receiver to the inverter according to the terminal
assignment.
The four negative input terminals is equipotent ial, you can choose any
one to connect.
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Once the inverter receives the signal of
exceeds the
for grid
Relay is activated when the inverter
hen the set duration is
not run
4
cm
DO Relay Configuration
The inverter has two DO relays, with functions as follows:
− DO1: Grounding fault alarm (not conf igurable)
− DO2: Consumer load control
The relays are conf igured as NO (Normally Open) contact by default. The DO2
contact can be used in two different operating modes that can be set via the LCD
menu of the inverter. You can refer to “10.10.4 System Configuration” for detailed
relay conf iguration.
Relay Trigger condition Description
Grounding
fault alarm
Consumer
load control
The grounding fault
occurs.
The output power of the
inverter
threshold set
connection for a while.
grounding fault, the relay closes the
contact. The relay remains triggered
until the fault is removed.
output power exceeds the threshold for
a while. W
reached or inverter does
normally during the set period, the
relay will disconnect and re-measure
the output power.
Connect all cables to the corresponding terminals:
1. Strip approximately 4 cm of protective layer off the DO cable.
2. Lead the DO connect ion cables through water-proof terminal and the
communication terminal lid.
3. Str ip approximately 6 mm of insulation off the insulated wires.
4. Release the sockets of the three-pole plug with a screwdriver and insert
individual insulated conductor into corresponding pin of the three-pole plug
according to markings shown below.
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OFF
2
ON
2
COM
2
OFF
1
ON
1
COM1
5. Pull cables outwards to confirm whether they are installed firmly.
6. Connect the three-pole plug to the DO connect ion sockets.
The DO2 relay can be conf igured as NO (by connect ing COM and OFF) or NC (by
connect ing COM and ON) contact. The DO1 relay is not conf igurable.
You must install an external load relay between the inverter and the consumer
load. Do not connect any consumer load d irectly to the switch output.
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6 Visiting and Configuring the
If there is no operation for 10 minutes, system will automatically return to
Webserver
6.1 User and Authority
The Webserver provides user permission and installer permission. To avoid two or
more persons to change the inverter configurations at the same time, only one
person can login to Webserver at a time.
Therefore, once a person logs in and does not exit, other person cannot log in
anywhere else. Close the web page when logging out. After logging out, it will take at
most 4s unt il the user log in again.
6.2 Login Interface
Query the inverter IP address displayed on the LCD main screen. Open the browser
and input the inverter’s IP address.
User should select username user after signing in with the default sign in password of
1111. User can change the password after signing in.
After inputting the username and password, press “Sign in” or “Enter” to log in.
the login interface.
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4
2
3
1
No.
Name
Description
1
Status bar
Language selection and user login info
2
Device info
The serial number of the inverter.
Operation information, parameter setting, history
output node, system
record have their second level menus.
4
Display area
Detailed information of the selected navigation bar
6.3 Main Interface
3 Navigation bar
Fig. 6-1 Webserver-user interface
record, grid dispatching,
information, in which, parameter setting and history
6.3.1 Summary Informat ion
The default interface after login displays the read-only information: current status,
CO
reduction, total run time, daily energy, monthly energy, total energy, daily
2
power curve, monthly energy histogram, yearly energy histogram, and total energy
histogram. You can use the “Export” button to export data as a csv file.
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Icon
Name
Description
Total energy yields since the inverter connects to the
grid
2
3
1
No.
Name
Description
PV1 and PV2 voltage, PV1 and PV2 current, and total
2
AC information
AC side information
Temperature
information
Tab. 6-1 Explanation of the icons
: Inverter is not in the fault state.
Current status
: The inverter is in fault state (DSP and LCD
communication fault, or fault of the inverter.)
CO2 reduction CO2 reduction due to the use of inverter
Total runtime Inverter total running time
Daily energy Energy yields of the present day
Monthly energy Energy yields of the present month
Total energy
6.3.2 Detailed Information
The detailed read-only informat ion is shown below:
1 DC information
3
input power and so on.
Inverter internal temperature
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6.4 Parameter Sett ings
Parameter settings include system parameters, operating parameters, protection
parameters, and communication parameters.
6.4.1 System Parameters
This interface is to set t ime and total energy adjustment.
6.4.2 Operating Parameters
This interface is for Austria and Vorarlberg to set the standby t ime, recovery t ime,
insulation resistance, active power settings and reactive power regulation. For
detailed informat ion, please refer to “10.15 Special Settings for Austria and
Vorarlberg”.
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To set the Q(P) or Q(U) parameters, please contact SUNGROW to get the
This interface is for Italy to set the standby time, recovery time, insulation resistance,
active power settings and reactive power regulation. For detailed informat ion,
please refer to “10.16 Special Settings for Italy”.
This interface is for Germany and others to set the standby t ime, recovery t ime,
insulation resistance, active power settings and react ive power regulation. For
detailed informat ion, please refer to “10.11 Setting Running Parameter ”.
installer authority first.
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6.4.3 Protection Parameters
This interface is for Australia to select the company, single protect stage or multiple
protect stage.
This interface is for Austria and Vorarlberg to select the grid codes such as voltage,
country, single protect stage or multiple protect stage. For detailed informat ion,
please refer to “10.15 Special Sett ings for Austria and Vorarlberg”.
This interface is for Italy to select the grid codes such as voltage, country, single
protect stage or multiple protect stage. For detailed informat ion, please refer to
“10.16 Special Sett ings for Italy”.
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To set the abovementioned protect ion parameters, please contact
This interface is for Germany and others to select the grid codes such as voltage,
country, single protect stage or multiple protect stage. For detailed information,
please refer to “10.12 Setting Protect ive Parameters ”.
SUNGROW to get the installer authority first.
6.4.4 Communication Parameters
This interface is to set the related communication parameters. The newly set
parameters will not be effect ive immediately. System will adopt the new
communication parameter after re-login. For detailed informat ion, please refer
to ”10.13 Setting Communication Parameters ”.
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6.5 History Record
History record includes the running record, fault record, and event record.
6.5.1 Running Record
This interface is to search the running information of the inverter. The default display
is the running record of the preset day with 10 records in each page. If there is more
than 10 records, system will automatically list them in different pages.
6.5.2 Fault Record
This interface is to view the inverter detailed fault records.
At most 100 fault records can be stored with 10 records in each page.
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In the event of Ethernet connection as shown in Fig. 5-14, inverter can be
6.5.3 Event Record
This interface is to view the inverter event records. At most 100 event records can be
stored with 10 records in each page.
6.6 Power Control Configurat ion
This interface is to set the grid dispatching parameters. The different statues of four
digital inputs are the conf iguration functions of corresponding actions.
Four inputs can be used to connect a power grid dispatch device (ripple control
receiver). A closed relay represents status 1 while open relay is 0.
The default state is 0000, when all four inputs are open. It cannot be applied to
power grid dispatch.
the master or the slave during grid dispatch. If the inverter is the master, it
can dispatch other salve pieces through the NET ports or RS485 ports.
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It is recommended to perform grid d ispatching as per default setting of each
configuration status.
The change of related parameters must be done only by qual if ied personnel.
Any breach may void warranty claims from SUNGROW.
6.7 Output Node
This interface is to set the grounding warning and appliance node parameters. For
detailed information, please refer to “10.10.4 System Configurat ion”.
6.8 System Information
This interface is to change the login password, perform load default and check
system information.
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7 Commissioning
1. Connect the external AC circuit breaker.
sufficient sunlight and
enough DC power. PV arrays initialize and
Commissioning is a critical part for a well-installed PV system, which can protect
against fires, injury and electrical shock.
7.1 Inspect ion before Commissioning
Before start ing the inverter, you should check the following items.
1. The inverter is accessible for operation, maintenance and service.
2. Re-check that the inverter is firmly installed onto the wall.
3. Space for ventilat ion is sufficient for one inverter or more than one inverter.
4. Nothing is left on the top of the inverter.
5. Inverter and accessories are correctly connected.
6. Cables are routed in safe place or protected against mechanical damage.
7. The select ion of AC circuit breaker is optimal.
8. Terminals not used underneath the inverter are sealed.
9. Warning signs & labels are suitably aff ixed and durable.
7.2 Commissioning Procedure
If all checking items ment ioned above meet the requirements, proceed as follows to
start up the inverter for the first time.
2. Rotate DC the switch to “ON” posit ion.
Suppose there are
supply DC power to inverter.
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7 Commissioning User Manual
3. Country selection screen will prompt. Perform
Countries
GB
DE
FR
IT
ES
BE
NL
AT
DK
PT
AU
GR_L
CHN
CZ
GR_IS
VB(DE)
SE
Other
If the country code is not set correctly during commissioning, reset the
local protective parameters that have been
War ni ng
!
Only qual i f i ed per sonnel a re
al l owed t o adj ust f ol l owi ng
paramet ers.
I mpr oper set t i ngs may cause
damage t o the i nvert er !
Countries
Country
：
[ AU ]
Grid Standard
AG EE
EG
PN PC
WP
Manual
Default
country settings with the right two buttons.
Detailed button functions can be found in “
Description of Button Funct ion
”. Press to
10.1
choose country code. Confirm the sett ings by
Pressing ENTER.
Refer to “10.12 Sett ing Protective Parameters ” for country code explanation. If the
inverter is installed where the country code is not included, please choose item
“Other” and manually set the protective parameters.
protective parameters as dictated in “10.12 Setting Protect ive Parameters ”.
There may be faults if otherwise.
4. Each country code represents corresponding
preset before delivery. After country setting,
there is the warning screen.
5. (Opt ional) When the country code “AU” is selected, Press ENTER to enter
/
the “Grid Standard” interface. Press
to choose the correct grid standard.
Press ENTER to confirm the choice.
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6. (Optional) When the country code “AU” and the grid standard “Manual” are
/
Countries
Country：
[ AU ]
Grid Standard
AG EE EG
PN PC
WP
Manual
Default
Pro-Stage
Single-stage
Multi-stage
Vgrid-min 210.0V
Vgrid-max 260.0V
Fgrid-min 47.00Hz
Fgrid-max 52.00Hz
type select ion screen and then
menu will come up. For
Pro-Stage
Single-stage
Multi-stage
he protection parameters for each grid
8. According to the actual PV strings conf iguration
PV conf i g mode
I ndepende nt mode
Paral l el mode
selected, Press ENTER to enter the “Pro-Stage” interface. Press
choose the correct stage. Press
to move cursor and Press to scroll up
time value. Confirm the sett ings by Pressing ENTER. The following f igure
shows the settings of single-stage protection parameters.
7. For other countries except “AU”, after
configuring the country code, there will be a
“Pro-Stage”
corresponding subdetailed informat ion, please refer to “10.12
Setting Protect ive Parameters “.
Single-stage protect ion: There is only one protect ion threshold range
for each grid voltage protection parameter.
Mult i-stage protection: T
voltage protection can be set with two threshold ranges.
to
mode, choose the same mode in the inverter by
the LCD display menu (see “
10.14 Setting PV
Configuration Mode ”).
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9. Configure time according to the local time.
T i me
Dat e : 12/ 01/ 31
T i me : 10: 30: 55
. Cancel by
Setting confirmation
Country Other
Grid code LV
LVRT OFF
Pro-Stage Single-stage
Date 2012/01/31
kW
h
kW
h
15.6
2012/01/31 10:30
4.000
497600
kWh
kWh
100%
P(%)
110
50
0
5 8 11 14 2017 23
t
001 IP:192.168.1.100
P-ac
Run
E-day
E-tot
State
B
Time setting is very important, which directly
affects data logging. Press
and Press
to scroll up time value. Confirm the
to move cursor
settings by Pressing ENTER. The date format is
YY/MM/DD. YY, MM, and DD stand for year,
month, and day respect ively. The time format is
hh/mm/ss. hh, mm, and ss stand for hour,
minute, and second respect ively.
10. After configuring all parameters, there will be a
“sett ing conf irmation” screen. Check whether
all above-ment ioned parameters are correct.
Confirm by Pressing ENTER
Pressing ESC and reset.
11. Inverter will enter into startup process. Observe
the status of LED indicators and the LCD main
screen. If inverter‘s commissioning succeeds,
the “RUN” indicator will be lit and “RUN” will be
displayed on the “State” area.
If inverter’s commissioning fails, the “FAU LT” indicator will be lit and “fault” will
occur on the display. Press
to view “current fault” information. Remove the
existing malfunction and then repeat starting up inverter as the above procedures.
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8 Disconnecting, Dismantling and
Press the ribbing
Pull outwards Disconnect DC connectors
Disposing of the Inverter
8.1 Disconnecting the Inverter
For maintenance or other service work, the inverter must be switched off. In normal
operation, switching off is not necessary.
In order to disconnect the inverter from the AC and DC power sources, proceed as
follows. Lethal voltages or damages to the inverter will follow if otherwise.
1. Stop the inverter through operating the LCD menu. For details, see “10.7
Starting and Stopping the inverter”.
2. Disconnect the external AC circuit breaker and prevent it from reconnecting.
3. Rotate the DC switch to the “OFF” posit ion.
Please strictly follow the above procedures. Otherwise the inverter will not
function properly.
4. Wait for about ten minutes unt il the capacitors inside the inverter have
discharged.
5. Measure to confirm the AC output at the AC circuit breaker is voltage free.
6. Refer to “5.4.2 Assembling AC Cables to Connector” to release AC connector
out of the inverter in reverse steps.
7. Release the locking part of DC connectors by pressing on the ribbing of the
locking hooks with nipper pliers and pull it outwards.
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8 Disconnect ing, Dismantling and D isposing of the Inverter user manual
ductor reconnect ion instruct ion,
For further disconnection and con
please visit the webpage of device manufacturer.
8.2 Dismantling the Inverter
Refer to Chapter 4 and Chapter 6 for the inverter dismantling in reverse steps. If
necessary, remove the wal l bracket from the wall.
There is a risk of burn injuries and electric shock!
Wait at least 10 minutes after disconnecting the inverter from the utility grid
and the PV input before touching any inner live parts.
If the inverter wil l be reinstalled in the future, please refer to Chapter 4 and
Chapter 4.1 for a proper conservat ion.
8.3 Disposing of the Inverter
Users should take the responsibility for the disposal of the inverter.
Some parts and devices of the inverter, such as, LCD displayer, batteries,
capacitors, may cause environment pollution.
Users must comply with the related local regulat ions to avoid the potent ial
pollution.
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9 Troubleshooting and Maintenance
Fault type
Troubleshooting
ED indicators and LCD
1. Disconnect AC circuit breaker.
“RUN” indicator goes out
1. Disconnect AC circuit breaker.
SUNGROW.
“Fault” indicator is lit
1. A fault is not removed.
3. If it cannot be solved, please contact SUNGROW.
Fault code
Specification
Troubleshooting
The grid voltage has
exceeded inverter
1. Check the voltage of the grid.
2. If the grid voltage exceeds the
3. If the grid voltage is within the
Service Dept..
Inverter has checked that
the instantaneous
1. This is a short-term fault due to grid
condition. Wait a moment for inverter
9.1 Troubleshooting
9.1.1 Troubleshooting of LED Ind icator
See “Tab . 2-2 Descript ion of LED Indicators” for the definit ion of indicator states.
L
screen cannot be lit
2. Rotate the DC Switch to the “OFF” position.
3. Check the polarity of DC input.
2. Rotate the DC Switch to the “OFF” position.
3. Check the correctness of electrical connection of
inverter. See “Fig. 5-1Electrical Connection Diagram”.
4. Check whether DC input voltage exceeds the inverter
start voltage.
5. If all above conditions are OK, please contact
2. Perform troubleshooting according to fault type in
LCD screen. See “9.1.2 Troubleshooting of Faults in
LCD Screen”.
9.1.2 Troubleshooting of Faults in LCD Screen
When faults occur, “Fault” state will be shown on the main screen. Press to view
mult iple “current fault” informat ion pages.
permissible range of inverter protective
002
allowable upper limit.
parameters, ask utility grid company for
solution.
permissible range, contact SUNGROW
003
69
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9 Troubleshoot ing and Maintenance User Manual
Fault code
Specification
Troubleshooting
sample value of the grid
voltage exceeds the
time.
recovery.
The grid voltage has
allowable lower limit.
1. Check the voltage of the grid.
2. If the grid voltage exceeds the
ge is within the
1. The inverter will resume if the output
SUNGROW Service Dept..
The grid frequency has
exceeded inverter
1. Check the frequency of the grid.
2. If the grid frequency exceeds the
is within the
Service Dept..
fallen below inverter
1. Check whether AC circuit breaker is
occurs in the LCD screen, contact
SUNGROW Service Dept..
The DC component of
inverter limit.
Inverter has detected
that there is a failure
current.
The average grid voltage
within the
over 10 minutes.
1. Check whether the grid is operating
3. Contact SUNGROW if the fault reoccurs.
Grid impedance has
1. Check whether the grid is operating
allowable limit for some
004
005
007
008
009
010 Islanding
fallen below inverter’s
The grid voltage is too
low.
Inverter has detected AC
overcurrent temporarily.
allowable upper limit.
The grid frequency has
allowable lower limit.
2. If the fault still exists, please contact
SUNGROW Service Dept..
permissible range of inverter protective
parameters, ask utility grid company for
solution.
3. If the grid volta
permissible range, contact SUNGROW
Service Dept..
current falls below the protective value.
2. If the fault still exists, please contact
permissible range of inverter protective
parameters, ask utility grid company for
solution.
3. If the grid frequency
permissible range, contact SUNGROW
triggered.
2. Check whether AC cables are all firmly
connected.
3. Check whether grid is not on service.
4. If all conditions are OK and this fault still
011
012
014
015
70
AC current has exceeded
is not
permissible range for
exceeded inverter’s limit
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. Check the PV strings for ground fault.
2. Contact SUNGROW if the fault reoccurs.
normally.
2. Wait a moment for inverter recovery.
normally.
2. Check AC cables for inappropriate size.
3. Wait a moment for inverter recovery.
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User Manual 9 Troubleshoot ing and Maintenance
Fault code
Specification
Troubleshooting
4. Contact SUNGROW if the fault reoccurs.
The inverter has
ed that there is
(Only valid in Austria.)
The bus voltage is
temporarily high.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
Inverter has checked that
PV1 input.
Inverter has checked that
PV2 input.
Inverter has checked the
1. Inverter will recover if the deviation
There is high Bus
1. This is a short-term fault. Wait a
SUNGROW Service Dept..
1. Check whether AC output power
with SUNGROW.
Relay fails.
Relay is in poor contact.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
A fault is detected during
DC-AC conversion fails
PV auto-detection fault.
PV2 boosted circuit
The PV configuration
connection cabinet.
1. Disconnect inverter.
Connecting Inverter to PV Arrays”.
048
Phase-R current
1. Wait a moment for inverter recovery.
017
019
021
022
024
026
037
038
detect
unbalance between the
three phase voltages.
there is overcurrent of
there is overcurrent of
deviation of neutral point
voltage.
fluctuation voltage.
Enclosure
over-temperature.
The ambient
temperature of the
enclosure exceeds the
threshold.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
Check the layout and the wiring of PV1
input.
Check the layout and the wiring of PV2
input.
value falls below the protective limit.
2. Contact SUNGROW if the fault reoccurs.
moment for inverter recovery.
2. If the fault still exists, please contact
exceeds nominal power too much.
2. Check whether fans work normally and
whether there are some abnormal fans.
Please replace broken fan, if necessary.
3. Clean air grills of outlet.
4. If the fault still exists, please contact
042 Current imbalance.
044
045,046*
inverter self-detection.
1
Faults detected in PV1 or
mode set on the display
047
is not in accordance with
the configuration in the
71
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
2. Re-select PV configuration mode and
re-connect PV strings. For more detailed
information please refer to “5.5
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9 Troubleshoot ing and Maintenance User Manual
Fault code
Specification
Troubleshooting
sampling channel fault.
2. Contact SUNGROW if the fault reoccurs.
Phase-S current
sampling channel fault.
Phase-T current
Inverter overcurrent
the hardware limit.
exceeds the
is within the
Grid under-frequency.
Grid voltage
The grid voltage
slave DSP.
Grid frequency
The bus voltage
The bus voltage drops
during grid connection.
PV1 or PV2 current
The PV input voltage
1. Check the functionality of the PV
2. Contact SUNGROW if the fault reoccurs.
The temperature of
the cabinet is too high.
1. Check the functionality of the fans;
3. Clean air grills of outlet.
049
050
100
101
102
103
104
200
201
sampling channel fault.
hardware protection.
AC current has exceeded
Grid over-frequency.
Grid frequency is outside
the permissible range.
Grid frequency is outside
the permissible range.
synchronization fault.
sampling differences
between the master and
synchronization fault.
The grid frequency
sampling differences
between the master and
slave DSP.
exceeds the set value of
the hardware.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. Check the frequency of the grid.
2. If the grid frequency
permissible range of inverter protective
parameters, ask utility grid company for
solution.
3. If the grid frequency
permissible range, contact SUNGROW
Service Dept..
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
202
203
300-301
72
exceeds the set value of
the hardware.
exceeds the bus voltage.
some components inside
connection terminal；
2. Clean the air inlet and outlet;
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User Manual 9 Troubleshoot ing and Maintenance
Fault code
Specification
Troubleshooting
4. If the fault still exists, please contact
SUNGROW.
1. Check whether the PV connection cables
5. Contact SUNGROW if the fault reoccurs.
Deviation between the
PV input power and
output power.
Open circuit voltage of
range.
1. Check whether the configuration of PV
3. Contact SUNGROW if the fault reoccurs.
Accessary processor
edundant fault
detected.
Voltage and current
sampling fault before
Leakage current CT
self-detection fault.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. If there are no other problems and the
2. Contact SUNGROW if the fault reoccurs.
SPD or FUSE warning
(Displayed only in
Inverter internal
communication failure.
Temperature sensor
warning.
1. Check the input mode on the LCD
screen, the default input mode is PV
are intact.
2. Check whether the ambient humidity of
PV components is too high.
3. Check whether the “PE” cable and the N
cable are well-connected;
302
PV1 and PV2 insulation
resistance to the ground
exceeds the set value.
4. Wait until the inverter reverts to normal;
306
the PV array is too high,
307
leading the input power
exceeds the permissible
308
fault.
R
309-318
grid connection.
2
320*
401-409 Permanent fault.
500
optional version).
Surge protection device
damaged or FUSE blown
out.
501-502
503-508
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
array exceeds the permissible range of the
inverter.
2. Wait a moment for inverter recovery.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
inverter is required to keep operating,
restart the inverter immediately.
If necessary, please contact SUNGROW
Service Dept. to replace the SPD or FUSE.
Contact SUNGROW if the fault reoccurs.
Contact SUNGROW if the fault reoccurs.
509
configuration under DC
mode fails.
Input mode
73
mode.
2. Contact SUNGROW if the fault reoccurs.
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9 Troubleshoot ing and Maintenance User Manual
Fault code
Specification
Troubleshooting
The PV panel
configuration exceeds
the optimum operating
range of the inverter.
1. Check whether the configuration of PV
2. Contact SUNGROW if the fault reoccurs.
1. Wait a moment for inverter recovery.
2. Contact SUNGROW if the fault reoccurs.
Communication failure
1. Inverter can be connected to the grid
Boost short circuit
warning.
510
512-513*
514
515
3
Fans are defective.
between the meter and
the LCD.
array exceeds the permissible range of the
inverter.
normally.
2. Contact SUNGROW if the fault reoccurs.
Contact SUNGROW if the fault reoccurs.
Note: *1 Fault code here is for SG8KTL-EC and SG10KTL-EC; while for SG12KTL-EC,
the fault code is 304 and 305.
2
Fault code here is for SG8KTL-EC and SG10KTL-EC; while for SG12KTL-EC, the
*
fault code is 041.
3
Fault code here is for SG8KTL-EC and SG10KTL-EC; while for SG12KTL-EC, the
*
fault code is 070-071.
Should you have any problems in operating the inverter, please contact
us:
Service hotline: +86 551 6532 7817
Email: [email protected]
We need the following informat ion to provide you the best assistance:
Type of the inverter
Serial number of the inverter
Fault code/name
Brief descript ion of the problem
74
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User Manual 9 Troubleshoot ing and Maintenance
Items
Methods
Period
Save data
Save the running data, parameters and log
to a disk or a file.
Once 100 days
Visual check for any damage or
Check each parameter of inverter
normal. Monitor the system using the
thermal imager.
System clean
Check the temperature and dust of the
Check the humidity and dust of the
necessary.
Six months to a year (it
depends on the dust
Electrical
Check whether cable connections are
the wrap belt of the
connection terminals is strip-off.
months after
commissioning and
Fans
Check whether there is crack of the fan
Once a year
Check the LCD stop and emergency stop
Check the warning labels, and replace
them if necessary.
Once or twice a year
Software optimization.
Check the setting of every parameter.
9.2 Maintenance
9.2.1 Routine Maintenance
deformation of the inverter.
Check there is any abnormal noise during
General state
of system
the running of the inverter.
Every 6 months
operation.
Check if the temperature of the housing is
inverter. Clean the inverter enclosure.
environment. Meanwhile check whether
the filter function of the air inlet is ok.
Clean the air inlet and outlet, when
connection
Safety
function
Software
loose. Tighten the loose connections.
Check whether there is damage to the
cables, especially the surface in contact
with metal.
Check whether
blade
Check whether there is any abnormal noise
when the fan is turning.
Clean or replace the fans.
circuit of the system.
Simulate shutdown and check stop signal
communication.
75
contents in air.)
Six
then once or twice a
year.
Once or twice a year
Page 84
9 Troubleshoot ing and Maintenance User Manual
Disconnect the inverter from the grid first and then PV arrays before any
9.2.2 Maintenance Instruction
Disconnect the inverter from the grid first and then PV arrays before any
maintenance work.
Lethal voltage still exists in the inverter. Please wait at least ten minutes and
then perform maintenance work.
Replacing Fan
Fans are wear and tear component of the inverter. To ensure that the inverter works
well, the internal fans should be replaced every 10 years or when a failure occurs.
If there is overheat and abnormal noise, please wait a moment for the fan recovery. If
the abnormal noise still exists after a moment, please contact SUNGROW Service
Dept. to replace the fan.
maintenance work.
Fans’ maintenance work may only be performed by qualified electricians.
Air Inlet and Outlet Cleaning
To have a good heat exchange with the environment, clean the heat sink every one
to two years or when necessary.
Clean the air inlet and outlet with soft brush or vacuum cleaner if necessary.
Battery Maintenance
There is a button battery on the inner LCD PCB board. Contact SUNGROW Service
Dept. to replace the battery when it is end of service life.
76
Page 85
10 Operating the LCD Menu
Button
Operation
Description
Press less than one
second
Move upwards or downwards, or increase setting
value. Hereinafter, it is referred to as “Press ”.
Press more than
Return to the previous menu or cancel the
ESC”.
Press less than one
second
Move left or right, or turn pages. Hereinafter, it is
referred to as “Press ”.
Press more than
Enter into the submenu or confirm the command.
10.1 Description of Button Function
Inverter offers two buttons for the user to look up the running information and
configure parameters. The two buttons have multiple funct ions. Please refer to Ta b.
10-1 before any operat ion onto inverter.
Tab. 10-1 Button Function
one second
command. Hereinafter, it is referred to as “Press
one second
The background illumination of the LCD screen will go out to save power
if there is no button operation for one minute. React ivate it by pressing
any button.
77
Hereinafter, it is referred to as “Press ENTER”.
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10 Operat ing the LCD Menu User Manual
Sys-param
Time
Energy-adj
Load default
Firmware version
50%
Menu
Run-inform
His
-inform
Start
/Stop
Set-param
ESC
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
Main screen
His-inform
Run-record
Flt
-record
Start/Stop
Start
Stop
Countries
GB DE FR IT
ESBENL
ATDKPT
AU
GR_L
CHN
CZ
GR_
IS
VB(DE)
SE
Set-
param
Sys-param
Run-param
Pro-param
Com-param
PV config mode
His-event
Sys-config
Run-param
Standby time 020s
Recovery time 030s
P
-W limits 100.0%
Run
-param
PF +
1.000
Q-
Var limits +000.0%
Q-Var switch [OFF
]
Run-
param
Save P-W Setting
[OFF]
Save Q-Var Setting[OFF]
Com-
param
DNS1 000
.000
.000
.000
DNS2 000.000
.000.000
Com
-param
Addr 001
DHCP [
ON]
Port 00502
IP
000.000.000.000
Sub-Net
000.000.000.000
Gateway 000.000.000.000
kW
hkWh
15.6
2012/
01/31 10:30
4.000
497600
kWh
kWh
100%
P(%)
110
50
0
5
8 11 14
2017 23
t
001 IP:
192.168.1.100
P-ac
Run
E-day
E
-tot
State
Other
B
ISO-protect 0200kohm
SolarInfobank [ON]
DNS [ON]
MAC ac-
19-9
f-00
-07-d
2
Run-param
Feed Power 100.0%
Feed Setting [OFF]
10.2 Inverter Menu Structure
*The menu tree of SG12KTL-EC doesn’t have the submenu “ISO-protect”.
78
Fig. 10-1 Menu Tree-English
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User Manual 10 Operat ing the LCD Menu
1
2
7
6
5
4
3
kW
h
kW
h
15.6
2012/01/31 10:30:00
4.000
497600
Run
kWh
kWh
kW
日电量
总电量
状态
100%
P-ac
E-day
E-tot
State
001 IP:192.168.1.100
P(%)
110
50
0
5 8 11 14 2017 23
t
B
No.
Description
1
Power curve. x-axis: time in hours; y-axis: output power yield P in %.
2
Icons (refer to the Tab. 10-3) and the Inverter active power limits (P-W limits).
3
Current output power.
4
Energy generation during this day until now.
5
Total energy generation since initial commissioning.
6
Inverter state.
7
Date (year/month/date) and time.
Inverter State
Description
After being energized, the inverter tracks the PV arrays’ maximum
normal mode.
In this mode the inverter will wait for sufficient sunlight and the DC
voltage to recover. The PV voltage is more than 230V.
The inverter will stop operation by manual “stop” through LCD
menu.
The state when inverter is power-on for the first time. The PV
10.3 Main Screen
If the inverter succeeds in commissioning, LCD display will enter into the main screen,
as shown in Fig. 10-2.
Fig. 10-2 Main Screen Description
The energy yields displayed by the LCD panel are indicative only.
For the actual yields, please refer to the electric energy meter.
Tab. 10-2 Inverter State Descript ion
Run
power point (MPP) and feeds AC power to grid. This mode is the
Standby
Key-stop
Ini-standby
Startup The inverter is initializing and synchronizing with the grid.
Com-err Inverter internal communication failure.
voltage is less than 230V.
79
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10 Operat ing the LCD Menu User Manual
Inverter State
Description
If a fault occurs, the inverter will automatically stop operation,
resume running.
If the device is in standby mode for more than 10 minutes, please check if
Current fault P1/1
1 Grid 008
Fault pages
Fault code
Fault type
Icon
Description
B
trigger the AC relay and show “Fault” on the LCD with the
Fault
“FAULT” indicator on.
Once the fault is removed in recovery time (set by user, see “10.11
Setting Running Parameter
”), the inverter will automatically
Upd-fail The master DSP program online upgrade failure.
the insolation is sufficient and the PV connection is correct.
If no anomaly is found, please disconnect DC switch and grid switch to
restart.
If it st ill does not work, contact SUNGROW.
If inverter is in “Fault” state, Press to view mult iple “Current fault” information
pages. For specific fault information, please refer to “
9.1.2 Troubleshooting of
Faul ts in LCD Screen”.
Tab. 10-3 Description of icons
DSP or LCD is in IAP update process.
Fan inside is working.
The Ethernet communication cable is active.
Inverter is in warning state.
LCD and Bank server are successfully connected.
Inverter is in power reduction state.
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User Manual 10 Operat ing the LCD Menu
50
%
Main Screen (Press ENTER)→Menu→Run-inform (Press ENTER)
LCD screen will show detailed running information. Scroll pages by pressing /.
Power curve during this day until now.
10
60
110
14
23
P(%)
t
31/01/12
Power Curve
5
Power curve of yesterday.
10
60
110
14
23
P(%)
t
30/01/12
Power Curve
5
10.4 Adjusting Contrast
ESC to enter into the contrast adjustment screen.
1. Press
2. Press
to increase the sett ing value and press to decrease the value.
ENTER to confirm the contrast sett ing.
3. Press
The contrast value ranges from 0 to 100. The recommended value is 50 or
60.
10.5 Viewing Detailed Running Informat ion
On the main screen, there is some basic information about the inverter. For more
detailed running informat ion, please operate as follows.
81
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10 Operat ing the LCD Menu User Manual
Energy generated each day in this month.
t
E(
kWh
)
200
120
40
31
16
1
Daily energy histogram
01
/
2013
Energy generated every month in this year.
t
E(kWh)
1200
Jan
Nov
Oct
Sep
Aug
Jul
Jun
May
Apr
Mar
Feb
now
3600
6000
Monthly energy histogram
2013
Total annual generating capacity in the past
t
E
(KWh)
60000
2000
2007
2014
36000
12000
Annual energy histogram
DC power input: The total input power of PV1 and
√
: The corresponding input is at work.
DC power i nput
Vdc[
V] 0000. 0 0000. 0
I dc[ A] 000.0 000. 0
Pdc[ W] 00000 00000
PV1 PV2
I ndep mode
√
√
Vac: Phase voltage.
Vac [ V] 000. 0 000. 0 000. 0
I ac[ A] 000. 0 000. 0 000. 0
Pac [ W] 0000 0000 0000
F[ Hz ] 00. 00 00. 00 00. 00
L1 L2 L3
CO2-reduce: Total CO2 emission reduction due to
Peak-Power: Daily peak power value.
CO2- r educe
00000kg
E-mont h 00000k Wh
h- Tot al 0000h
T- t oday 0000mi n
Temp 000. 0°C
Peak Power 0000W
fifteen years.
PV2.
Vdc: DC voltage of each input.
Idc: DC current of each input.
Pdc: DC power of each input.
Indep mode: PV configuration mode of the two
PV inputs.
Iac: Phase current.
Pac: AC output power of each phase.
F: Frequency of each phase.
the inverter.
E-month: The energy generated in this month.
h-Total: Total running hours of the inverter.
T-today: Daily running time of the inverter.
Temp: Internal temperature of the inverter.
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User Manual 10 Operat ing the LCD Menu
P-W: Inverter output active power.
P
- W
00000W
Count ry DE
Flt-record (Press ENTER)
Inverter shows fault record pages.
Flt-record P 1/1
001 01/31/2013 10:16:10 008
(Press ENTER)
Inverter shows history event record pages.
Hi s - event P 1/ 1
001 01/ 31/ 2013 10: 16: 10 Fl t
Country: Inverter selected country code.
The power value indicated by each column of the histogram represents
the average value of the power during the related unit interval.
10.6 History Running Informat ion
10.6.1 Fault Records
Main Screen (Press ENTER)→Menu (Press )→His-inform (Press ENTER)→
Scroll pages by pressing .
The inverter can only store at most 100 latest fault records.
10.6.2 History Event Records
Main Screen (Press ENTER)→Menu (Press )→His-inform (Press )→His-event
Scroll pages by pressing .
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10 Operat ing the LCD Menu User Manual
→
Run-record (Press ENTER)
On the “Run-record”
view. Confirm by
Hi s-
r ecor d
Run- r ecor d
Fl t - r ecor d
Run- r eocr d P1/ 2
21/ 01/ 2012( 30)
20/ 01/ 2012( 30)
19/ 01/ 2012( 30)
18/ 01/ 2012( 30)
17/ 01/ 2012( 30)
Hi s- event
001
002
003
004
005
Run - r eocrd T14 2012/ 01/ 21 P001/ 003
2012/ 01/ 21 12: 05
2012/ 01/ 21 12: 00
2012/ 01/ 21 11: 55
2012/ 01/ 21 11: 50
2012/ 01/ 21 11: 45
0001
0002
0003
0004
0005
Inverter shows history
running information
pages by pressing
Vac [ V] 000. 0 000. 0 000. 0
I ac[ A] 000. 0 000. 0 000. 0
Pac [ W] 0000 0000 0000
F[ Hz ] 00. 00 00. 00 00. 00
L1 L2 L3
DC power i nput
Vdc [ V] 0000. 0 0000. 0
I dc[ A] 000. 0 000. 0
Pdc [ W] 00000 00000
PV1 PV2
I ndep mode
√ √
P-W 00000W
Count ry DE
CO
2
- r educe 00000kg
E-mont h 00000k Wh
h- Tot al 0000h
T- t oday 0000mi n
Temp 000. 0°C
Peak Power 0000W
The inverter can only store at most 100 latest history event records.
10.6.3 Running Information Records
Main Screen (Press ENTER)→Menu (Press )→His-inform (Press ×2)
display, you can scroll
pages by pressing ,
and press to select
the date you want to
pressing ENTER.
pages. Scroll among
/.
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User Manual 10 Operat ing the LCD Menu
Press to choose “Start”/”Stop” and press ENTER to
St a r t
/ St op
St a r t
St op
Restar t
Start
/Stop
Start
Stop
Restart
Press ENTER to confirm your choice.
Confi rm start the
i nvert er ?
Conf i rm st op t he
i nver t er ?
Confi r m r estar t the
i nvert er ?
10.7 Start ing and Stopping the inverter
Main Screen (Press ENTER)→Menu (Press ×2)→Start/Stop (Press ENTER)
confirm the choice.
The Restart item will appear only when a permanent fault occurs.
10.8 Entering Password
The parameter settings are password-protected. You can see the inverter’s
parameters or set the parameters if you input a default password A (111111).
You can set all parameters of the inverter if you input a dedicated password B. Please
ask SUNGROW or your dealer for this password.
1. Press ENTER to enter into “Menu” screen.
2. Press
to move the cursor to “Set-param” menu item and confirm by
pressing ENTER.
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10 Operat ing the LCD Menu User Manual
3. A password confirmat ion screen will occur.
Set
- param
Password:
111111
4. Press ENTER to conf irm the password and
Set - par am
Sys - par am
Run - par am
Pr o- param
Com- param
PV conf i g mode
Switching Mode Editing Mode
Press to navigate .
Press
Press to add one step value.
Press to confirm all the
settings or scroll pages.
ENTER
Press or
ESC ENTER
Press to move cursor right and Press
to
input the password A.
enter the “Set-param” submenu.
10.9 Button Operation for Parameters Setting
The button functions for parameter setting in submenus may differ from that in
other menus.
Proceed as follows to perform the parameter settings.
10.10 Setting System Parameters
10.10.1 Setting the Time
If there is deviat ion between the t ime on inverter main screen and your local t ime,
you should adjust the time on the inverter to the local time. Otherwise the inverter
data logging will fail. Clock is in 24-hour format.
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User Manual 10 Operat ing the LCD Menu
Time (Press ENTER)
On the “Time” screen, Press to move the cursor
T i me
Dat e: 12/ 01/ 31
T i me : 10:30: 55
On the “Energy-adj” screen, Press to move the
reading value).
Ener gy-
adj
+0000k Wh
Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press
ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER)→
right and Press to set the correct date and time.
Confirm settings by pressing ENTER. The date format
is YY/MM/DD. YY, MM, and DD stand for year,
month, and day respectively. The time format is
hh/mm/ss. hh, mm, and ss stand for hour, minute, and
second respectively.
10.10.2 Energy Adjustment
If the accumulative value of “E-total” in the inverter is different from the value in the
external metering device, you should adjust the “Energy-adj” sett ing.
Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press
ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER,
Press )→Energy-adj (Press ENTER)
cursor right and Press to set the correct offset
value.
Confirm settings by pressing ENTER.
The positive symbol “+” can be changed to the
negative symbol “-” by pressing
The adjustment range is from -9999 kWh to +9999
kWh.
(Energy-adj value)= (Real measured value) - (E-tot
.
10.10.3 Load Default
All history information will be unrecoverable cleared and all parameters will
return to the default value except the protective parameters and time once
the “load defaul t” operat ion is performed.
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Load def aul t
Confi r m resume set t i ng?
On the “Sys-config” screen,
to set the
ENTER.
Sys-
config
Sys-
config
Maintain time 1
h
Stable time 10min
Wake power 08.4kW
Electri wake [OFF]
Grounding Alarm [ON]
Buzzer [OFF]
Role
[S]
Interface [RS485]
Low Power
[OFF]
Item
Description
Buzzer
OFF (reserved)
Low Power
OFF (reserved)
M (master inverter) or S (slave inverter).
Settings”.
RS485 or ETH (Ethernet), but not simultaneously.
after interface setting.
Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press
ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER,
Press ×2)→Load default (Press ENTER)
Press ENTER to confirm “load default”.
10.10.4 System Conf iguration
Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press
ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER,
Press ×3)→Sys-config (Press ENTER)
scroll pages by Pressing
ENTER and Press
to
select one item.
For each item setting, Press
to move the cursor right
and Press
appropriate value.
Confirm settings by Pressing
Role
This is to set the communication role in power control. For the
cable connection and role definition, see “
The interface settings of master and slave inverters must be the
Interface
same.
This setting is enabled only when the Role is set to be M (master).
So, for slave inverters, you should reset the Role to be S (slave)
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Power Control
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User Manual 10 Operat ing the LCD Menu
Item
Description
ON: Activate the DO1 relay in the case of an earth fault.
More information about DO1, see “DO Relay Configuration”.
ON: Activate the DO2 relay, when the inverter output power is
OFF: Disable the load control function.
The lowest power of the inverter to activate the Electri wake
SG12KTL-EC: range: 4 kW...12 kW, default: 8.4 kW.
The time needed before the relay receives drive signal.
Range: 1 min...60 min, Default: 10 min.
The time duration of relay drive signal.
Inverter shows detailed firmware information,
LCD_SGS 2TL- EC_V11_V1_A_M
MDS P _SGS 2TL- EC_V11_V1_A
Ver ：
SN： 130809001
Fi rmware ver si on
SDSP_SGS 2TL- EC_V11_V1_A
Grounding Alarm
connected to the DO1 terminal, the relay is closed to complete the
circuit to trigger the external alarm.
higher than the set value of Wake power and the duration of this
With an audible and/or visual alarm such as buzzer or light indicator
Electri wake
state is longer than the set value of Stable time. The time duration
of DO relay signal can be set via Maintain time.
More information about DO2, see “DO Relay Configuration”.
function.
Wake power
SG8KTL-EC: range: 2.4 kW...8 kW, default: 5.6 kW.
SG10KTL-EC: range: 3 kW...10 kW, default: 7 kW.
Stable time
Maintain time
Range: 1 hour...4 hour, Default: 1 hour.
10.10.5 F irmware Version
Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press
ENTER)→Enter password 111111 (Press ENTER)→Sys-param (Press ENTER,
Press ×4)→Firmware version (Press ENTER)
including LCD version and DSP version.
The firmware version information is read only.
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10 Operat ing the LCD Menu User Manual
ENTER)
On the “Run-param”
croll pages by
Confirm settings by
Run-param
Feed Setting [OFF]
Feed Power 100
.0%
Run-
param
Standby time 020
s
Recovery time 030
s
P-
W limits 100.0%
Run-param
Q-Var switch [OFF]
PF +1.000
Q-Var limits +000.0%
ISO-protect
0200kohm
Run-param
Save P-W setting [OFF]
Save Q-Var setting [ON]
Parameter
Explanation
Default
Range
Standby
The time from
to inverter feeding
power to grid.
Austria and
Others: 20s
20s…255s
Recover
The time from the
Austria, Italy, and
30s…900s
P-W limits
Inverter active
power limits.
100.0%
0...100%
ISO-protect
Protection value of
resistance.
200kohm
10kohm...1000kohm
PF
Power factor.
+1.000
-1.000…-0.800/+0.800
…+1.000
Q-Var limits
Inverter reactive
power limits.
0.0%
0...+100%/0…-100%
Q-Var switch
Whether to start
inverter reactive
power adjustment
function.
[Pf]
[Pf]/[Qt]/[Off]/[Q(P)]/[
10.11 Sett ing Running Parameter
10.11.1 Main Screen of Run-param
Main Screen (Press ENTER)→Menu screen (Press ×3)→Set-param (Press
ENTER)→Enter password 111111 (Press ENTER, Press )→Run-param (Press
screen, s
pressing ENTER and press
to select one item.
For each item setting, Press
to move the cursor right
and Press
appropriate value.
Pressing ENTER.
Tab. 10-4 Specif ication of Running Parameters
to set the
time
time
90
inverter initialization
fault is cleared to
inverter feeding
power to grid.
the insulation
Vorarlberg:
30s
Vorarlberg: 300s
Others: 30s
Q(U)]
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User Manual 10 Operat ing the LCD Menu
Parameter
Explanation
Default
Range
Feed Setting
Enable/disable the
the feed power.
For Australia: ON
ON/OFF
Feed Power
The upper limit value
For Australia:
For others: 100.0%
0...100%
Regulation Mode
Explanation
The reactive power can be regulated by the parameter PF
(Power Factor).
The reactive power can be regulated by the parameter Q-Var
limits (in %).
The PF is limited to +1.000, and the “Q-Var limits” is limited to
Q(P)
The PF changes with the output power of the inverter.
Q(U)
The reactive power ratio changes with the grid voltage.
(Italy), after
Run-param
Upper PF Cap 1.000
Lower Power 050.0%
Lower PF Ind 0.900
Upper Power 100.0%
function of limiting
of feed power.
For others: OFF
092.0%
10.11.2 Reactive Power Regulation
The inverter provides reactive power regulation funct ion. Use the “Q-Var switch”
parameter to activate this function and select proper regulation mode.
Pf
Qt
Off
“Pf” Mode
The reactive power can be regulated by the parameter PF on the Run-param screen.
“Qt” Mode
The reactive power can be regulated by the parameter Q-Var limits (in %) on the
Run-param screen.
0.0%.
“Off” Mode
The PF is limited to +1.000, and the Q-Var limit is limited to 0.0%.
“Q(P)” Mode(when the country selection is not “IT”)
The PF changes with the inverter output power.
If the country selection is not “IT”
selecting Q(P) Mode, Press ENTER to enter the
“Run-param” submenu.
For each item setting, Press to move cursor right
and Press
to set the appropriate value. Confirm
settings by Press ENTER.
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Parameter
Explanation
Default
Range
Upper PF
Power factor of point P1 in the Q(P) mode
Lower
Power*
Output power of point P1 in the Q(P)
mode curve (in %)
Power factor of point P2 in the Q(P) mode
curve
Upper
Power*
Output power of point P2 in the Q(P)
mode curve (in %)
50%...100
%
COS Ф
Lower
PF Ind
Lower Power
Power
P/Pn
1
Upper Power
Upper PF
Cap
Capacitive
Inductive
P1
L2
COS Ф
Lower PF Ind
=0.9
Power
P/Pn
Upper Power
=100%
Upper PF Cap
=1
General Q(P) Curve
Default Q(P) Curve
Lower Power
=50%
P2
P1
P2
If the country selection is not “AT” (Austria), “VB(DE)”
Run-param
U1 Limit 095.0%
U2 Limit 105.0%
Hysteresis 3.0%
Run-param
Lower Q/Sn Ind 025.0%
Upper Q/Sn Cap 025.0%
Lower U Limit 080.0%
Upper U Limit 115.0%
Tab. 10-5 “Q(P)” Mode Parameters Explanat ion
Cap
curve
1 0.9…1
50% 0%...50%
Lower PF Ind
0.9 0.9…1
100%
*Lower Power <Upper Power
Fig. 10-3 React ive Power Regulation Curve in Q(P) Mode
“Q(U)” Mode(when the country selection is not “AT”, “VB(DE)”, or “IT”)
The reactive power ratio changes with the grid voltage.
(Vorarlberg), or “IT” (Italy), after selecting Q(U) mode,
Press ENTER to enter the “Run-param” submenu. Press
to set the appropriate value.
Confirm settings by Pressing ENTER.
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