Sungrow SH4K6 Owner's manual

SH3.6_4.6K -QUEN-Ver12-201710 Version：1.2
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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], [email protected]
Address: No. 1699 Xiyou Rd., New & High Technology Industrial Development
Zone, Hefei, P. R. China.
Zip: 230088
Telephone: [phone]
Fax: [phone]

II
System Overview

III

IV

V

VI

VII
Contents
System Overview............................................................................II
1Installation ...............................................................................1
1.1Location Requirements........................................................................................1
1.2Installing the Inverter...........................................................................................2
1.3Grounding the Inverter........................................................................................3
1.4Installing the Meter...............................................................................................4
2Electrical Connection...............................................................5
2.1Terminal Description ............................................................................................5
2.2Meter Connection..................................................................................................6
2.3Grid Connection.....................................................................................................6
2.4PV Connection ........................................................................................................7
2.5Communication Connection .............................................................................8
2.6Battery Connection............................................................................................ 10
2.7DO Connection....................................................................................................12
2.8Retrofitting the Existing PV System..............................................................13
2.9Connecting to Interface Device for SPI (Italy)...........................................15
3Commissioning ......................................................................16
3.1Button Function ..................................................................................................16
3.2Commissioning Procedure..............................................................................17
3.3Result Verification............................................................................................... 21
4SolarInfo Moni App Configuration .......................................26
4.1App Operation Requirements........................................................................26
4.2Installing the App ...............................................................................................26
4.3Visiting in“Local Access”Mode......................................................................27
4.4Visiting in "[Login]" Mode ................................................................................28
5Operation ...............................................................................29
5.1Main Screen ..........................................................................................................29

VIII
5.2Viewing the Error Codes .................................................................................. 30
5.3LCD Menu.............................................................................................................. 31
5.4Setting the Country Code................................................................................ 32
5.5Setting the Protective Parameters ............................................................... 33
5.6Setting the Communication Parameters ................................................... 34
6Troubleshooting.....................................................................35
6.1Troubleshooting of the Indicator ................................................................. 35
6.2Troubleshooting of the Errors........................................................................ 35
7Appendices.............................................................................44
7.1Inverter Technical Data..................................................................................... 44
7.2Meter Technical Data......................................................................................... 46

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.
The shaded side of the building would be better.

1 Installation Quick User Manual
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Install vertically for sufficient heat dissipation.
Clearance requirements for single and multiple installation:
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.

Quick User Manual 1 Installation
3
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.
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.

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Second PE Connection
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.
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
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 the battery,
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 mm
8 BAT_Com.
(CANH, CANL) Battery communication
9 DO1 Power management
10 DO2 Earth fault alarm
11 BAT+, BAT- Battery Phillips screwdriver

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2.2 Meter Connection
The Sungrow meter should be connected to the distribution board of household
loads behind the main switch.
For details about the cable connections on the Sungrow meter side, see
the Quick Installation Guide for it.
Proceed as follows to connect the RS485 wires to the inverter.
When the length of RS485 cable is longer than 100 m, push the 120ohM (2) switch
to “ON”to ensure stable communication
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.

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2.4 PV Connection
The inverter has two PV inputs and can be configured in independent mode or
parallel mode. Refer to the user manual for mode selection.
Before connecting the PV arrays to the inverter, ensure that the impedances
between the positive terminals of the PV string and Earth, and between the
negative terminal of the PV string and Earth are larger than 200 kOhm.
The inverter will not function properly if the DC polarities are reversed.
Check the positive and negative polarities of the PV cells.
Cable Requirements
Cross-Section Cable
Diameter
Max. Withstand
Voltage
Max. Withstand
Current
4 mm2–6 mm2
AWG12–AWG10 3 mm–6 mm 600 V Same as short-circuit current
Strip the insulation from the cables by 7 mm–8 mm.
Tighten the cable gland with torque of 2.5 Nm–3.0 Nm.

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2.5 Communication Connection
2.5.1 Ethernet Connection
Connect the inverter to the PC through the Ethernet port to set up the Ethernet
communication. The Ethernet connection with a router is shown in the following
figure.

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Use a TIA/EIA 568B standard network cable with a diameter of 3 mm–5.3 mm.
Remove the cable jacket by 8 mm–15 mm, and use the Ethernet crimper to crimp
the cable.
Refer to “4 SolarInfo Moni App Configuration” to use SolarInfo Moin App to view
the inverter information.

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2.5.2 Wi-Fi Connection
1. Unscrew the waterproof lid from the Wi-Fi terminal.
2. Install the Wi-Fi module. Slightly shake it by hand to determine whether it is
installed firmly.
3. Refer to the Quick User Manual delivered with the Wi-Fi module to
configure the Wi-Fi.
2.6 Battery Connection
For the connections on the battery side, see the manuals supplied by the
battery manufacturer.
2.6.1 Connecting the Power Cable
A two-pole DC circuit breaker with over-current protection (specification:
100 V DC / 100 A DC) should be installed between the inverter and the
battery module.
Be sure to adhere to the following screw assembly sequence: screw head, spring
washer, fender washer, OT terminal.