Sungrow SBR HV Battery Parallel Extension Manual

SUNGROW SBR HV Battery Parallel Extension

Manual

Disclaimer

The material in this document has been prepared by Sungrow Australia Group Pty. Ltd. ABN 76 168

258 679 and is intended as a guideline to assist solar installers for troubleshooting. It is not a statement

or advice on any of the Electrical or Solar Industry standards or guidelines. Please observe all OH&S

regulations when working on Sungrow equipment.

Scope

This Manual describes the requirements and installation procedures for SBR battery

parallel configuration.

Note: Maximum 4 batteries can be connected in parallel to compatible inverters.

1.1 Requirement

Hybrid inverter model: SH10RT

Wifi dongle: WiNet

SUNGROW SBR battery combiner box

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1.2 Scope of Delivery

Item

A

B

C

D

E

F

G

H

I

J

K

L

Name

Combiner box

Bracket

Expansion plug set

M4 screw set

COM2 connector

SUNCLIX connector

COM1 connector

Battery connectors

OT terminal

M6 screw set

Mounting ear

Cord-end terminal

Quantity

1

1

3

1

1

1

1

4

1

5

1

18

* Images are for reference only. The actual products received may differ.

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1.3 Mounting the Combiner Box

step 1 Install the wall-mounting bracket and mount the Combiner box to the bracket.

1.4 Terminal Description (Combiner Box)

All electrical terminals are located at the bottom of the combiner box.

figure 1 Terminals at the Bottom of the Combiner Box

* The image shown here is for reference only. The actual product received may differ.

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table 5-1 The label description of Combiner Box terminal

table 2 The label of COM2 terminal

L1

H1

L2

H2

L1

H1

L2

H2

L1

H1

L2

H2

L1

H1

L2

H2

A

B

RS485 BMS1/CAN BMS2/CAN BMS3/CAN BMS4/CAN

table 3 The label description of COM terminal

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1.5 Connection Diagram in Parallel System

• The COMM terminal of the battery is connected to the COM2 terminal of the combiner

box. Signal cable 1 white and orange cable is used as BMS/CAN_H1; signal cable 2 or-

ange cable is used as BMS/CAN_L1; signal cable 5 white and blue cable is used as

BMS/CAN_H2; and signal cable 6 green cable is used as BMS/CAN_L2.

• The grounding terminal of the battery is connected to the PE terminal of the combiner box.

• The COM1 terminal of the combiner box is connected to the PCS. Signal cable 1 white

and orange cable is used as CAN1_H; and signal cable 2 orange cable is used as

CAN1_L.

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1.6 PE Cable Connection

step 1 Prepare an earth cable by shrink tub and lug.

step 2 Remove the screw on the PE terminal and fasten the cable with a screwdriver.

step 3 Apply paint to the grounding terminal to ensure corrosion resistance.

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Page 6 of 18

1.7 Battery Connection (please use only the SUNCLIX connectors

provided in the box)

1.7.1 Assembling the Battery Connectors

step 1 Strip the insulation from each DC cable by 7～8 mm.

step 2 Assemble the cable ends with the crimping pliers.

1: Positive crimp contact

2: Negative crimp contact

step 3 Lead the cable through cable gland, and insert the crimp contact into the insulator until it snaps into

place. Gently pull the cable backward to ensure firm connection. Tighten the ca- ble gland and the insulator

(torque 2.5 N.m to 3 N.m).

step 4 Check for polarity correctness.

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1.7.2 Installing the Battery Connectors

step 1 Connect the Battery connectors to corresponding terminals until there is an audible click.

step 2 Seal the unused Battery terminals with the terminal caps.

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1.8 SUNCLIX Connection

step 1 For the assembly of the SUNCLIX connector, refer to the appendix.

step 2 Remove the waterproof lid from P+ and P– the terminal.

step 3 Plug the connectors into P+ and P– terminals.

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Page 9 of 18

1.9 COM2 Cable Connection

1.9.1 Assembling the COM2 Cable Connector

The BMS3/CAN terminal is used as an example for description.

step 1 Unscrew the swivel nut from the connector.

step 2 Take out the terminal block.

step 3 Remove the seal and lead the cable through the cable gland.

step 4 Strip the cable with a wire stripper.

step 5 Crimp the cord end terminal 。

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step 6 Plug the wires into the corresponding terminal according the labels on the bottom of the

device.

step 7 Pull the wires outward to check whether they are firmly installed.

step 8 Insert the terminal block into the connector until it snaps into place with an audible click.

step 9 Fasten the swivel nut.

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1.9.2 Installing the COM2 Cable Connector

step 1 Remove the waterproof lid from the COM2 terminal.

step 2 Insert the COM2 connector into COM2 terminal on the bottom of the combiner box until

there is an audible click.

step 3 Pull cables outwards to confirm whether they are fastened firmly.

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1.10 COM1 Cable Connection

step 1 For the assembly of the COM1 connector, refer to the appendix.

If the COM1 connector received is G2, please skip this step.

step 2 Insert the COM1 connector into COM1 terminal on the bottom of the combiner box. Tighten the

swivel nut.

The installation method of COM1 connector G1 and COM1 connector G2 is the

same, and here takes G1 as an example.

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1.11 Firmware upgrade

A manual firmware upgrade might be applicable to do the battery parallel configuration.

Please contact Sungrow service team before the commissioning.

There are two ways to do the manual firmware upgrade.

Method 1: Connect the inverter to the iSolarCloud, then ask Sungrow Service team to

upgrade.

Method 2: Request a firmware upgrade package from Sungrow, and do it locally.

1.11.1 Upgrading firmware locally

step 1 Connect to the inverter through local access. Refer to the link

Local Access

Methods Guide

step 2 Change the Wi-Fi network on your mobile phone from your home network

to the Sungrow inverter network (network starting with SG). Open iSolarCloud app

again and click ‘Local Access’ → select WLAN access → enter the ‘user’ for the

account and “pw1111” for the password →click ‘Login’. (Figure 4).

Figure 4 Local Access

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Now click on the ‘More’ button located on the bottom right corner of the iSolarCloud APP

(Figure 7) and Select ‘Update firmware’ (Figure 8).

Figure 5 Local Access

Figure 6 Device Upgrade

Step 3 Select the firmware upgrade package which is received from Sungrow Service

team. Tap “confirm” on the prompt message, and allow 15 minutes for it to finish the

upgrade.

********************END********************

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Appendix

1.

Assembling the SUNCLIX Connector

During assembly, be careful not to contaminate, pull out, or shift, the seal in the ca-

ble gland. A contaminated or shifted seal impairs strain relief and leak tightness.

step 2 Pry the connection open and pull the sleeve and the insert apart.

step 3 Insert the stripped cable into the cable gland up to the stop. The stranded wire can be seen

inside the spring. Press the spring down until it audibly snaps into place.

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step 4 Push the insert into the sleeve and tighten the cable gland (torque 2 N·m).

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2. Assembling the Communication Connector

If the communication connector received is G2, please skip this step.

step 1 Unscrew the swivel nut from the connector.

step 2 Remove the inner rubber gasket.

step 3 Insert the RJ45 plug into the front plug connector until there is an audible click, and install

the rubber gasket.

step 4 Tighten the swivel nut.

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As we continuously improving our services, changes to this document may occur without notice.