Sungrow SG80KTL User manual

1
SG80KTL Quick Installation Guide
This guide provides a general instruction of the installation procedures of SG80KTL.
In no case shall this guide substitute for the user manual or related notes on the
device.
Make sure to read over, fully understand and strictly follow the detailed
instructions of the user manual and other related regulations before installing
the equipment.
Any violation could result in personal death or injury or device damage.
1 Unpacking and Inspection
Step 1 R
emove the backplate and
fasteners from the packaging.
Step 2 Inspect the inverter for visible
damages and check the
completeness of the delivery
contents
according to the
inner packing list.
1110mm
800mm
391mm
Contact your supplier if any of the contents is missing. SG80KTL is
unavailable if any damage is detected.

2
ABC
FG DE
×18
Fig. 1-1 Scope of delivery
Item
Name
Description
A
Inverter
---
B
Backplate
Used to fix the inverter to the installation site.
C Documents
Quality certificate, packing list, test report, CD and quick
user manual
D
Fasten set
Six units to fasten backplate to metal frame.
E Fix screw
Two M4×16 screws to fix the inverter with the
backplate.
F
DC connector
Eighteen pairs MC4 terminals for PV connection.
G AC cable gland
When the external diameter of the AC cable you
selected matches it, replace the original AC cable gland
on the bottom of the device before wiring.

3
2 Mounting Inverter onto the metal
frame
Select the installation location and regulate the clearances of multiple inverters,
referring to the user manual.
Move the inverter to the installation site with the help of another person or the
lifting device by means of the handles.
Install the inverter onto metal frame as following procedures.
Step 1 Remove the backplate and fasteners from the packaging.
Step 2 Place the backplate to the chosen metal frame and adjust it to proper
position and height.
Step 3 Mark the position for holes drilling according to the holes position of the
backplate.
Step 4 Drill holes according to the marks make before. If the shape of the metal
frame does not match the backplate, re-drill holes on the backplate
according to the metal frame chooden.

4
Step 5 Secure the backplate to the metal frame firmly by the supplied fastener.
Torque of the fasten nut is 35 Nm.
Step 6 Lift the inverter above the backplate and then slide down to make sure they
match perfectly.
Step 7 After putting the inverter on the backplate, secure the inverter to the
backplate with two M4×16 screws (fix screw hole has its own nut).
No.
Name
Description
A
Hexagon nut
M10
B
Spring
washer
-
C
Flat washer
-
D
Screw bolt
M10*45
E
Metal frame
-
F
Backplate
-

5
3 Electrical Connection
Death hazards due to high voltage existing inside the inverter!
Make sure that all the DC and AC cables to the inverter are not live before you
start the electrical work.
Do not turn on the AC side or DC side circuit breaker until all inverter electrical
connections have completed.
3-1 Open the Connection Cabinet
Loose the six screws on the front cover of the connection cabinet and remove the
front cover to see the internal layout of the connection cabinet.
Configuration
circuit board
DC switch
DC SPD Cooling fan AC crimping
terminal
Front view
AC cable gland
DC switch
Waterproof
air valve
Communication
cable glands
DC input plug-in
terminal
Bottom view DI/DO cable
gland
AC cable gland for
connecting Tracker
control cabinet

6
3-2 Cables Selection
AC Cable
A
BPE
L1
L2
L3
CD
No.
Description
Remark
A
Protective layer
External diameter of the cable: 30.5-50 mm
B
Length of insulation to be
stripped off
24 mm
C
Insulation layer
-
D Cross section of AC cables
Range: 30-150mm2; recommended value: 70
mm
2
* The external diameter of the AC cable described in A is proper range.
If you select AC cable with the external diameter within the range of 30.5-40
mm, please select the smaller AC cable gland.
If you select AC cable with the external diameter within the range of
40-50mm, please select the larger AC cable gland.
The following table gives the recommended max. length of the AC cables based
on the cross-section of the AC cables.
Cross-section of the AC cable (mm2)
Max. length of the AC cables (m)
35
0-50
50
50-100
70
>100
DC Cables
Cross-sectional
area
Cable
External
diameter
Max.
withstand
voltage
Max. input current for
each PV string
4~6mm2
12AWG~10AWG
6~9mm 1100V 12A
Second PE Cable
The cross-sectional area of the second PE cable shall be exactly the same with
that of the PE cable of the AC cable.
RS485 communication cables

7
Shielded twisted pair cables or Shielded twisted pair Ethernet cables.

8
3-3 AC Connection
High voltage inside the inverter!
Ensure all cables are voltage-free before electrical connection.
Do not connect the AC circuit breaker until all inverter electrical connections
are completed.
Step 1 Disconnect the AC circuit breaker and ensure it will not reconnect
accidentally.
Step 2 Unscrew the 6 bolts on the front cover of the
lower junction box.
Step 3 Peal the cables as shown below.
For flexible cables (stranded wires), use cold pressing terminal lugs.
The cross-section of the AC cable must be selected carefully in order to prevent
accidentally disconnections of the inverter from the grid due to high impedance of
the cable.
A
BPE
L1
L2
L3
CD
Step 4 Select the adaptive wire diameter of AC cable gland according to actual AC
cable diameter. Remove or install the two AC cable glands on the bottom of
the device by torque of recommended value.
Remove or install the smaller AC cable gland by torque of 12…13 Nm.
Remove or install the larger AC cable gland by torque of 16…17 Nm.
Peel the plastic film on one end of the AC cable protection with proper
tools before AC cable connection. Only the AC cable protection itself
needs to be replaced; other accessories (packing nuts) can still be used.
Step 5 Fix the AC cable to the corresponding terminals with torque shown in the

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follow two tables.
Cable section(mm2)
Screw tightening torque(Nm)
Min
Max
26.7~42.3
9.8
13.6
53.5~67.4
11.9
16.3
70~107
15.8
22.6
127~177
19.8
29.4
The table values are used for the following cable type:
1. Copper stranded(including sector);
2. aluminum solid(including sector);
Cable section(mm2)
Screw tightening torque(Nm)
Min
Max
26.7~42.3
7.9
10.8
53.5~67.4
9.5
13.0
70~107
12.7
18.1
127~177
15.8
23.5
The table values are to used for the following cable type:
1. aluminum stranded;
Step 6 Pull the cable gently to make sure it is secured.
L1 L2 L3 PE
* Pictures here are indicatively only. Product in kind prevail.

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If the cross-
section of the AC cable is sectorial, please place the apex(A) of
sector upside and then fix the AC cable to the corresponding terminals..
90°
A(apex)
Observe the AC terminal layout. Device will not work normally if the phase
cable is connected to the PE terminal.
Do not squeeze or press the cable insulation layer. Improper connection
may affect the normal operation of the inverter.
Step 7 Seal the gaps between the AC cable and the gland inside the lower part of
the cabinet by fireproofing mud.
3-4 DC Connection
Step 1 Strip off 7mm insulation layer from
all DC cables.
7mm
Step 2 Assemble cable ends with crimp
contacts by crimping pliers.
Positive Crimp Contact
Negative Crimp Contact

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Step 3 Lead the cable through the cable
gland.
Step 4 Insert the crimp contact into the
insulator until it snaps into place.
Then pull gently to make sure it is
secured.
Step 5
Screw the cable gland to insulator
with tightening torque 2.5…3 Nm.
Crimp Contact
Positive Insulator
Cable Gland
Negative Insulator
Crimp Contact
Cable Gland
For more assembly and connection instruction, please visit the webpage
of the device manufacturer.
Step 6 Check to make sure the polarities of PV strings are correct.
The inverter will not function properly if the DC polarities are reversed.
Step 7 Disconnect the DC switch.
ON
OFF
Step 8 Check the connection cable of PV string for the correct polarity and that
the open-
circuit voltage does not exceed the inverter input limit 1100V,
even under the lowest operating temperature.
880.0
+
-

12
•Check the positive and negative polarity of the PV cells. After
confirmation, you can insert the DC connectors into the input
terminals on the bottom of the inverter.
•
For the same MPPT, reverse connection of a single string is
prohibited. A permanent failure of the system or inverter may follow
if otherwise.
Step 9 Connect the DC input strings following the sequence of silk-screen
number 1 to number 18 on the bottom of the cabinet.
Bottom view
1+
1-
3+
3-
5+
5-
7+
7-
9+
9-
13+
13-
11+
11-
15+
15-
17+
17-
2+
2-
4+
4-
6+
6-
8+
8-
10+
10-
12+
12-
14+
14-
16+
16-
18+
18-
Step 10Insert the positive and negative DC connectors into the input terminals
on the bottom of the inverter until there is an audible sound.
+
-
+
DC
-
+
DC
-
+
-
Step 11Seal the unused DC terminals with waterproof plugs.
3-5 Second Protective Earth Terminal
There is a second PE terminal on one side of the inverter and it should be grounded.

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M6
Fig. 3-1 Second PE terminal
The ground connection of this second PE terminal cannot replace the
connection of the PE terminal of the AC cables. Make sure the two PE
terminals are all grounded reliably. Sungrow shall hold no liability for any
possible consequences caused by ignorance of this warning.
Cable Connection
Fig. 3-2 Second PE connection
* Connection parts are not within the scope of delivery
3-6 Communication Connection
There are two communication waterproof connection terminal on the bottom of the
inverter. RS485 A/B terminals and RS485 interface are provided on the configuration
circuit board of the junction box. A 120Ωterminating resistor can be connected
between the A and B communication cable through the dip switch.
Item
Name
Description
A
Screw
M6×12mm
B
Lock washer
-
C
Washer
-
D
Cable socket
-
E
Yellow-green
cable*
-

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Configuration circuitboard
COM NC NO
Emergency Stop
COM
Fault Alarm
COM NC NO
COM RS485 RS485
120Ωterminating
resistor switch
Default
OFF
ON
RJ45 interface
For RJ45 Connection the pins definitions are shown below.In Ethernet cable, Pin 3
white-green cable defines RS485- B while Pin 6 green cable defines RS485+ A.
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
3-7 Completing Installation
Seal the gaps between the cables and the glands inside the lower part of the
cabinet by fireproofing mud. Inspect before commissioning and reassemble the
front cover of the connection cabinet.

15
4 Commissioning
Before starting SG80KTL, make sure all installation and connections are completed
and verified.
Step 1 Close the AC circuit breaker.
Step 2 Rotate DC switch to “ON” position.
Step 3 Suppose there are sufficient sunlight and enough DC power. PV arrays
initialize and supply DC power to inverter. The LCD display is activated
when DC voltage exceeds inverter startup votlage. If there is a defect on the
display, contact Sungrow.
Button
Operation
Description
Press for less
than 2 seconds
Move upwards or downwards or scroll among set
values. Hereinafter, it is referred to as “Press ”.
Press for more
than two
seconds
Return to the previous menu or cancel the command.
Hereinafter, it is referred to as “Press ESC”.
Press for less
than 2 seconds
Move left or right, or turn pages. Hereinafter, it is
referred to as “Press ”.
Press for more
than two
seconds
Enter into the sub-menu or confirm the command.
Hereinafter, it is referred to as “Press ENTER”.
Step 4 Press to choose country code.
Confirm the settings by Pressing
ENTER.
Countries
GB DE FR IT
ES
BE NL
AT
DK
PT
AU
GR
CN
CZ
Other
SE RO
TH TK US
Step 5 Select the country code according
to the installation country of the
inverter. Each country code
represents corresponding local
protective parameters that have
been preset before delivery. Before
country setting, there is warning
screen. Operate according to the
warning information and press
ENTER.
Warning!
Only qualified personnel rare allowed to
adjust following parameters. Improper
settings may cause damage to the
inverter!

16
Refer to “Protection Parameter Setting” in User Manual for country code explanation.
If the inverter is installed where the country code is not included, please choose
item “Other” and manually set the protection parameters.
Step 6 If the country code set as GR, a Grid codes
page as shown in the right will appear. Press

to select grid code and press ENTER to
confirm.
Grid codes
GR_L
GR_IS
GR
If the country code set as DE, a Grid codes page as
shown in the right will appear, where LV signifying
low-voltage grid; MV signifying medium-voltage
grid. Press

to select grid code and press ENTER to
confirm.
Grid codes
LV
MV
DE
If the country code set as TK, a Grid codes page as
shown in the right will appear. Press

to select grid
code and press ENTER to confirm.
Grid codes
AG
YG
TK
If the country code set as TH, a Grid codes page
special for Thailand will appear. Press

to select
grid code and press ENTER to confirm.
Grid codes
380V
400V
TH
After setting the Country parameter, please proceed to set other
parameters of the
inverter in accordance with the specific requirements
of the local grid. Before commissioning, please check thoroughly if the
set parameters meet the local grid requirement.

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If the country code set as Other, a Grid codes page as
shown in the right will appear. Press

to select grid
code and press ENTER to confirm.
Grid codes
50Hz
60Hz
Other
If the country selected is not the abvementioned 5 countries, enter the next step
directly.
Step 7 After selecting the Grid Code, there will be a
“Pro-stage” type selection screen and then
corresponding sub-menu will come up. For
detailed information, please refer to
“Protection Parameter Setting”
in User
Manual.
Pro-Stage
Single-stage
Multi-stage
Step 8 Set the inverter time as per local time.
Incorrect time setting will affect the data
logging. Press

to move the cursor and
Press

to set the specific time and date.
Press ENTER to confirm setting.
Time
Time: 10:30:55
YY/MM/DD
Date: 17/01/31
Step 9
Set the inverter modbus parameter.Press 
to move the cursor and Press

to set the
modbus parameter. Press ENTER to confirm
setting.
Modbus param
Addr 001
Step 10After configuring all parameters, there will be
a “setting confirmation”
screen. Check
whether all above-mentioned parameters are
correct. Confirm by Pressing ENTER. Cancel
by Pressing ESC and reset.
Setting confirmation
Countries Other
Pro-stage Single-stage
Grid codes MV
Date 2017/01/31
Confirm above settings?

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Step 11Inverter will enter into startup process.
Observe the status of LED indicators and the
LCD main screen. If commissioning succeeds,
the “RUN” indicator will be on and “Run” will
be displayed on the “State” area.
kW
h
kW
h
15.6
497600
Run
kWh
kWh
kW
100.0%
P(%)
110
50
05 8 11 14 2017 23t
001
P-ac
E-day
E-tot
State
2015/01/31 10:30
60.000
If commissioning fails, the “FAULT” indicator will be on and “Fault” will
occur on the display. Press

to view “current fault” information.
Remove the existing fault and then repeat the commissioning
procedures.