Sungrow SH3K6 Owner's manual

SH3.6_4.6K-QUEN-Ver14-201805 Version：1.4
Quick User Manual
SH3K6 / SH4K6
Grid-Connected Hybrid Inverter

I
All Rights Reserved
No part of this document can be reproduced in any form or by any means
without the prior written permission of Sungrow Power Supply Co., Ltd.
Trademarks
and other Sungrow trademarks used in this manual are
owned by Sungrow Power Supply Co., Ltd.
All other trademarks or registered trademarks mentioned in this document are
owned by their respective owners.
Notice
In no case shall this manual substitute for the user manual or related notes on
the device.
Contents will be periodically updated or revised due to product development.
The information in this manual is subject to change without advance notice!
Make sure to read over, fully understand and strictly follow the detailed
instructions in the user manual and other regulations before installation. Any
violation could result in personal death, injury or damage to the device.
The latest manual can be acquired at www.sungrowpower.com.
Contact Information
Should you have any questions about this product, please contact us:
Company:
Sungrow Power Supply Co., Ltd.
Website:
www.sungrowpower.com
E-mail:
[email protected], s[email protected]
Address: No. 1699 Xiyou Rd.,
New & High Technology Industrial
Development Zone, Hefei, P. R. China.
Zip:
230088
Telephone:
[phone], [phone]
Fax: [phone]

II
System Overview
Fuse (optional)
※Installation of the copper is required in case of parallel PV input.
L
A
PV1 PV2
B
LN
N PE
PE bar Neutral bar Home appliance
Main Switch
SUNGROW meter
Utility Grid
Copper A2 B2
1-phase sensor
Li-ion
battery
※
Circuit breaker
Wiring diagram for a single-phase system with a Li-ion battery (CAN communication)
Inverter inside
The CT clamp of 1-phase sensor can be placed before or after the main switch.
CANH CANL
BAT_Com.

III
Wiring diagram for a three-phase system with a Li-ion battery (CAN communication)
※Installation of the copper is required in case of parallel PV input.
L3
N
PE
PE bar Neutral bar Home appliance
Main Switch AC circuit breaker
Utility Grid
Copper ※
L1
L2
IN
OUT
A2 B2
Fuse (optional)
Li-ion
battery
CANH
CANL
SUNGROW
meter
A
B
Load side
Grid side
Inverter inside
PV1 PV2
CANH CANL
BAT_Com
.

IV
Wi-Fi
Ethernet
Monitoring Earth Fault Alarm
NO2
COM2
Router/Switch
Direct mode
SolarInfo Moni APP SolarInfo Bank Server
SolarInfo Bank Webserver Explorer
SolarInfo WiFi
Light
Buzzer
240V AC
2. The buzzer inside the inverter will beep if an earth fault occurs.
Notice:
Inverter inside
DO1
COM1 NO1 DO2
COM2 NO2
1. The earth fault alarm can also be sent to your email by the SolarInfo Bank server.

V
Copper
A2 B2
※
Fuse (optional)
※Installation of the copper is required in case of parallel PV input.
L
A
PV1 PV2
B
LN
N PE
PE bar Neutral bar Home
appliance
Main Switch
Utility Grid
1-phase sensor
Li-ion
battery
PV
inverter
Circuit breaker
Retrofitting the existing PV system at a single-phase system
Inverter inside
The CT clamp of 1-phase sensor can be placed before or after the main switch.
CANH
CANL

VI
※Installation of the copper is required in case of parallel PV input.
Inverter inside
L3
N
PE
PE bar Neutral bar Home appliance
Main Switch AC circuit breaker
Utility Grid
Copper ※
L1
L2
A
B
A2 B2
Fuse (optional)
Sungrow
battery
CANH
CANL
Retrofitting the existing PV system at a three-phase system
PV
inverter
IN
OUT
SUNGROW
meter
Load side
Grid side
PV1 PV2

VII
Contents
System Overview.....................................................................II
1Installation .........................................................................1
1.1 Location Requirements .............................................................1
1.2 Installing the Inverter.................................................................2
1.3 Grounding the Inverter ..............................................................3
1.4 Installing the Meter....................................................................4
2Electrical Connection........................................................5
2.1 Terminal Description..................................................................5
2.2 Meter Connection......................................................................6
2.3 Grid Connection ......................................................................10
2.4 PV Connection ........................................................................ 11
2.5 Communication Connection ....................................................12
2.6 Battery Connection..................................................................13
2.7 DO Connection........................................................................15
2.8 Retrofitting the Existing PV System.........................................16
2.9 Connecting to Interface Device for SPI (Italy) .........................17
3Commissioning ...............................................................20
3.1 Button Function.......................................................................20
3.2 Commissioning Procedure ......................................................21
3.3 Result Verification....................................................................25
4SolarInfo Moni App Configuration .................................30
4.1 App Operation Requirements..................................................30
4.2 Installing the App.....................................................................30
4.3 Visiting in “Local Access” Mode...............................................31
4.4 Visiting in "[Login]" Mode.........................................................32
5LCD Operation.................................................................33
5.1 Main Screen............................................................................33
5.2 Viewing the Error Codes .........................................................34

VIII
5.3 LCD Menu................................................................................35
5.4 Setting the Country Code.........................................................36
5.5 Setting the Protective Parameters ...........................................37
5.6 Setting the Communication Parameters ..................................38
6Troubleshooting.............................................................. 39
6.1 Troubleshooting of the Indicator...............................................39
6.2 Troubleshooting of the Errors...................................................39
7Appendices...................................................................... 48
7.1 Inverter Technical Data ............................................................48
7.2 Meter Technical Data ...............................................................50

1
1 Installation
1.1 Location Requirements
The concrete wall should be suitable for the weight and dimensions of the
inverter.
The location should be convenient for installation, cable connection and
service.
The location should be not accessible to children.
The location should be away from flammable materials or gas, and the
environment should not be enclosed.
Flammable wall Flammable material or
gas near the installation Closed cabinet
The shaded side of the building would be better.
Snow
accumulation
Direct rain fallDirect sunlight

1 Installation Quick User Manual
2

Install vertically for sufficient heat dissipation.
Clearance requirements for single and multiple installation:
300mm
300mm
300mm 300mm
1.2 Installing the Inverter
Install the inverter on the wall by means of the wall-mounting bracket and the
expansion plug sets.
The depth of the holes should be about 70 mm. Be sure to adhere to the
following screw assembly sequence: self-tapping screw, spring washer, fender
washer, wall-mounting bracket.
Mark the positions
1
φ10
Drill the holes
2
D 70 mm
240 mm

Quick User Manual 1 Installation
3
Place the expansion tubes Secure the bracket
4
3
56
Mount the inverter to the bracket Secure the inverter with two
M5 screws and washers
(3.0 N.m)
1.3 Grounding the Inverter
A second protective earth (PE)
terminal is equipped at the side
of the inverter. Be sure to
connect this PE terminal to the
PE bar for reliable grounding.
M5
Fig. 1-1 Second PE Terminal
In no case shall the second PE connection substitute for the PE
connection on the terminal block of AC connector. Be sure to connect
both PE terminals for reliable grounding. The loss of any or all rights
may follow if otherwise.

1 Installation Quick User Manual
4
Second PE Connection
ABCD
E
Item Description Specification
A Cable socket -
B Washer -
C
Spring washer
-
D Screw
M5 x 12 mm (3.0 Nm)
E Yellow-green cable
6–10 mm2copper wire or 10–16 mm2
aluminum wire
1.4 Installing the Meter
The SUNGROW meter should be installed next to the main switch. It supports a
35 mm DIN-rail installation, as shown in the following figure.
Single-phase Energy Meter Three-phase Energy Meter
Fig. 1-2 Installing the Energy Meter to the Rail
The single-phase Energy Meter and the three-phase Energy Meter
are alternative in the delivery. The meter figures in this document
have been created for the three-
phase Energy Meter unless
otherwise specified.

5
2 Electrical Connection
For the TT utility grid, the N line voltage to ground must be less than 30
V.
2.1 Terminal Description
Connection terminals on the inner configuration circuit board are shown below:
Fig. 2-1 Configuration Circuit Board Inside the Inverter
No.
Label
Connection
Tool Requirements
1
Copper
PV (for parallel mode)
Phillips screwdriver
2
Ethernet
Communication
-
3 DRM
Local control for SPI
(Italy)
Flat-head screwdriver
with an open end of 2
mm
4
DI
Reserved
-
5 RS485
A1, B1 for external
device,
A2, B2 for the meter
Flat-head screwdriver
with an open end of 2
mm
6
120 Ohm
RS485
-
7 BAT_Temp.
Temperature sensor
PT1000
Flat-head screwdriver
with an open end of 3

2 Electrical Connection Quick User Manual
6
No.
Label
Connection
Tool Requirements
8
BAT_Com.
(CANH, CANL)
Battery communication
mm
9
DO1
Power management
10
DO2
Earth fault alarm
11
BAT+, BAT-
Battery
Phillips screwdriver
Terminals at the bottom of the inverter are shown below:
Backup Ctrl
Fig. 2-2 Terminals at the Bottom of the Inverter
Label
Description
AC-Grid
AC terminal to the utility grid.
Backup Ctrl
Reserved.
PV1+, PV1-, PV2+,
PV2-
Terminals for the DC cables.
ON, OFF
DC switch.
Com.
Cable glands for Ethernet, RS485, CAN, AI, DI and DO.
Wi-Fi
Terminal for the Wi-Fi module.
BAT+，BAT- Cable glands for the battery power cables.
2.2 Meter Connection
The Energy Meter must only be connected to the distribution board of
household loads next to the main switch, as shown in the following figure.
Sungrow meter
Home Appliance
PV strings
A
Meter
link
Network
meter
Main
switch
Utility
grid
Solar switch
Inverter

Quick User Manual 2 Electrical Connection
7
2.2.1 For Three-phase Energy Meter
Three-phase energy meter and its terminals are shown in the following figure.
A
D
B
C
Designation Specification
A
L1, L2, L3, N
Output terminals to the load side
B
Active PWR Glowing: 1000 impulse per kWh act
ive power is
detected.
Off: no active power is detected.
Reactive PWR Glowing: reactive power is detected.
Off: no reactive power is detected.
Com.
Flashing: the meter is communicating with the inverter.
Off: no communication between the meter and the
inverter.
C RS485-A, -B RS485 communication terminals
D
L1, L2, L3, N
Input terminals on the grid side.
Proceed as follows to connect the cables.
1. Take out the RS485 cable from the packaging. Connect the ends Aand B
to the corresponding, eponymous terminals A (white wire) and B (black
wire) on the Energy Meter, as shown below.
AB

2 Electrical Connection Quick User Manual
8
2. Strip the insulation from
the power wires by 10
mm. Then connect the
wires to the terminals on
the Energy Meter, as
shown below.
(Cross-section: 10 mm2to
25 mm2)
OUT
IN
Load side
Grid side
The line conductor L1 supplies power to the Energy Meter. At least
the line conductor L1 and the neutral conductor must be connected
to switch on the Energy Meter.
Just connect the line conductor L1 and the neutral conductor, then
the three-phase Energy Meter can be used as a single-phase
meter.
2.2.2 For Single-phase Energy Meter
Single-phase energy meter and its terminals are shown in the following figure.
A
B
E
D
C
Designation Description
A
1, 4
For the 1-phase sensor
B 2, 5
2 is for RS485-A
5 is for RS485-B
C PWR/COM
Stead on: the meter is powered on.
Flashing: the meter is communicating with the
inverter.
Off: no power supply to the meter.

Quick User Manual 2 Electrical Connection
9
Designation Description
1000 imp/kWh
Glowing: 1000 impulse per kWh active power is
detected.
Off: no active power is detected.
D 3, 6
3 is for the line conductor
6 is for the neutral conductor
E
/
CT clamp for the 1-phase sensor
Proceed as follows to connect the cables.
1. Take out the meter (with
1-phase sensor) and the
cables from the
packaging.
L
N
B
A
B2
A2
Power supply cable RS485 cable
2. Connect the cables to the meter.
(a) Tighten the power supply wires to
terminal 3 (L) and terminal 6 (N).
(b) Tighten the RS485-A
wire to
terminal 2and the RS485-B wire to
terminal 5.
(c) Place the 1-phase sensor around
the phase wire (L
) from the main
switch.
The CT clamp of 1-phase sensor can
be placed before or after the main
switch.
N
Grid
Load
L
c
a
b
Make sure that the 1-phase sensor is installed in the right direction: the
arrow on the sensor must point away from the grid towards the load.
2.2.3 For Inverter Side
When the length of RS485 cable is longer than 100 m, push the 120ohM (2)
switch to “ON” to ensure stable communication
Plug the wires into the corresponding terminals on the inverter without tool
tightening.

2 Electrical Connection Quick User Manual
10
123
A2B2
485
a
b
Note:
For reconnection, press the part as shown in the red circle so as to pull out the
cable.
2.3 Grid Connection
Install an AC circuit breaker next to the AC output of the inverter.
Inverter Type
Specification for AC Circuit Breaker
SH3K6
20 A
SH4K6
32 A
Make sure to disconnect the AC circuit breaker and secure it against
reconnection before cable connection.
PE
L
N
8 mm
– 15 mm
40 mm
• Cross -section : 4 mm²
• Cable diameter : 11 mm 14 mm
12
4
3
–
N
N
PE
PE
5
(1.2 N.m)
“Click”
“Click”
Cable gland
Housing
Terminal block