Triple Power BMS
Parallel Box-II G2
Installation Manual
Version 4.0www.solaxpower.comeManual in the QR code or at http://kb.solaxpower.com/

Safety

General Notice

1. Contents may be periodically updated or revised. SolaX reserves the right to make improvements or changes in the product(s) and the program(s) described in this manual without the prior notice.
2. The installation and maintenance can only be performed by qualified personnel who:
   • Are licensed and/or satisfy state and local jurisdiction regulations;
   • Have good knowledge of this manual and other related documents.
3. Before installing the device, carefully read, fully understand and strictly follow the detailed instruction of the user manual and other related regulations. SolaX shall not be liable for any consequences caused by the violation of the storage, transportation, installation, and operation regulations specified in this document and the user manual.
4. Use insulated tools when installing the device. Individual protective tools must be worn during installation, electrical connection and maintenance.
5. Please visit the website www.solaxpower.com of SolaX for more information.

Safety Instruction
For safety reasons, installers are responsible for familiarizing themselves with the contents of the Manual and all warnings before performing installation.

Descriptions of Labels

	CE mark of conformity
	Caution, risk of danger
	Keep the battery system away from open flames or ignition systems
	Safety glasses must be worn
	The system must be disposed of at a proper facility for environmentally-safe recycling.
	Protective conductor terminal
www.tuv.com	TUV certification
	Caution, risk of electric shock
	Keep the battery system away from children
	Refer to the operating instructions
	Do not dispose of the parallel box together with household waste.

DANGER!
Danger to life due to high voltages in the device!

• All operations of the device relating to electrical connection and installation must be carried out by qualified personnel.
• The device is not to be used by children or persons with reduced physical sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction.
• Children should be supervised to ensure that they do not play with the device.

WARNING!
Risk of electric shock!

• During operation, do not touch any parts other than DC switch and LCD panel of the device.
• Use only attachments recommended or sold by our company. Otherwise, it may result in a risk of fire, electric shock, or injury to person.
• Make sure that the existing wiring is in good condition and that the wire is not undersized.
• Authorized service personnel must use insulated tools when installing or working with this equipment.
• Do not disassemble any parts of the device which are not mentioned in the user manual. The device contains no user-serviceable parts.
• The installation place should be away from humid or corrosive substance.
• Authorized service personnel must disconnect the cables before attempting any maintenance or cleaning or working on any circuits connected to the device.

CAUTION!
Danger of burn injuries due to hot enclosure parts!

• During operation, the upper lid of the enclosure and the enclosure body may become hot.
• Only touch the lower enclosure lid during operation

CAUTION!
Possible damage to health as a result of the effects of radiation!

• Do not stay closer than 0.66 ft/20 cm to the device for any length of time.

CAUTION!

• Pay attention to the weight of the device. Personal injuries may be caused if not handled properly.
• Keep the device away from flammable, explosive materials to avoid fire disaster.

NOTICE!

• Ensure that the installation location meets the following conditions:
  1. The building is designed to withstand earthquakes.
  2. The location is far from the sea to avoid salt water and humidity, over 0.62 miles/997.79 meters.
  3. There are no flammable or explosive materials, at a minimum of 3 ft//0.91 m.
  4. The ambience is shady and cool, away from heat and direct sunlight.
  5. The temperature and humidity remains at a constant level.
  6. There is minimal dust and dirt in area.
  7. There are no corrosive gases present, including ammonia and acid vapor.
  8. Where charging and discharging, the ambient temperature ranges from 32°F/0°C to 131°F/55°C. For Triple power 3.0: -22°F/-30°C to 131°F/55°C (with heating function); 14°F/-10°C to 131°F/55°C (no heating function). For Triple power 5.8: 32°F/ 0°C to 131°F/55°C (no heating function).
  In practice, the requirements of battery installation may be different due to environment and locations. In that case, follow up the exact requirements of the local laws and standards.
• The company’s battery module is rated at IP65 and thus can be installed outdoors as well as indoors.
• If the ambient temperature exceeds the operating range, the battery pack will stop running to protect itself. The optimal temperature range for operation is 59°F/15°C to 86°F/30°C. Frequent exposure to harsh temperatures may deteriorate its performance and lifetime.
• For the first installation, the interval among manufacture dates of battery modules shall not exceed 3 months.
• All the product labels and nameplate on the device shall be maintained clearly visible.
• See Warranty for instructions on obtaining service. Attempting to service the device yourself may result in a risk of electric shock or fire and will void your warranty.

Packing List

For use with T-BAT-SYS-HV-5.8:

Power cable (+) x1 Power cable (-) x1 (6.56ft/200cm)	Power cable (+) x2 Power cable (-) x2 (7.22ft/220cm)
BMS Communication Cable (6.56ft/200cm) x1 CAN/485 Communication Cable (7.22ft/220cm) x2	Series-connected plug x2
Expansion tube x2 Expansion Screw x2 Power Cable Disassembling Tool x1	Rotation Wrench x1
Grounding Terminal x2	Documents

For use with T-BAT-SYS-HV-3.0:

Power cable (+) x1 Power cable (-) x1 (6.56ft/200cm)	Power cable (+) x1 Power cable (-) x1 (7.22ft/220cm)
Power Cable (Heat+) x1 Power Cable (Heat-) x1 (6.56ft/200cm)	RS485 Communication Cable (7.22ft/220cm) x2 BMS Communication Cable (6.56ft/200cm) x1
Expansion tube x2 Expansion Screw x2 Power Cable Disassembling Tool x1	Rotation Wrench x1
Grounding Terminal x2	Documents

BMS Parallel Box-II G2:

Power cable (+) x1 Power cable (-) x1 (6.56ft/200cm)	BMS Communication Cable (6.56ft/200cm) x1 CAN/485 Communication Cable (7.22ft/220cm) x2
Expansion tube x2 Expansion Screw x2 Power Cable Disassembling Tool x1	Rotation Wrench x1
Grounding Terminal x2	Documents

Accessory Kit (For T58):

Power cable (+) x2 Power cable (-) x2 (7.22ft/220cm)	Series-connected plug x2

Accessory Kit (For T30):

Power cable (+) x1 Power cable (-) x1 (7.22ft/220cm)	Power Cable (Heat+) x1 Power Cable (Heat-) x1 (6.56ft/200cm)

* Please refer to the actual delivery for the accessories.

Installation Site

NOTICE!

• For outdoor installation, precautions against direct sunlight, rain exposure and snow accumulation are recommended.
• Exposure to direct sunlight raises the temperature inside the device. This temperature rise poses no safety risks, but may impact the device performance.

Installation Carrier

Fire resistant	Be suitable for the dimension (368 x 334 x 153.5 mm) and weight (25 kg) of the device

Installation Angle

Installation Space

Installation Tools

Additionally Required Materials

No.	Required Material	Type	Conductor Cross-section
1	Additional PE cable	Conventional yellow and green wire	6 mm²

Mechanical Installation

Terminals of the BMS Parallel Box- Ⅱ G2

Object	Mark		Description
I	Slave	HEAT+	Connector “Heat+” of the parallel box to “Heat+” of Slave
II		HEAT-	Connector “Heat-” of the parallel box to “Heat-” of Slave
III		BAT+	Connector “BAT+” of the parallel box to “B+”/”+” of Slave
IV		BAT-	Connector “BAT-” of the parallel box to “B-“/”XPLUG” of Slave
V		S-CAN	Battery module communication of Slave
VI		485	Battery module communication of Slave
VII	Main	BAT+	Connector “BAT+” of the parallel box to “BAT+” of Main
VIII		BAT-	Connector “BAT-” of the parallel box to “BAT+” of Main
IX		M-CAN	Battery module communication of Main
X		/	Air Venue
XI	Inverter	BAT+	Connector “BAT+” of the parallel Box to “BAT+” of inverter
XII		BAT-	Connector “BAT-” of the parallel Box to “BAT-” of inverter
XIII		BMS	Connector “BMS” of the parallel Box to “BMS” of inverter
XIV			GND
XV	ON/OFF		Circuit Breaker
XVI	POWER		Power Button

Overview of Installation

1. Connect with T-BAT-SYS-HV-5.8

Connect with a T-BAT H 5.8 (BMS) and a HV11550 battery module:	Connect with a T-BAT H 5.8 (BMS) and 3 HV11550 battery modules:
Connect with a T-BAT H 5.8 (BMS) and 5 HV11550 battery modules:	Connect with a T-BAT H 5.8 (BMS) and 7 HV11550 battery modules:

2. Connect with T-BAT-SYS-HV-3.0

Connect with a MC0600 (BMS) and 2 HV10230 battery modules:	Connect with a MC0600 (BMS) and 4 HV10230 battery modules:
Connect with a MC0600 (BMS) and 6 HV10230 battery modules:	Connect with a MC0600 (BMS) and 8 HV10230 battery modules:

* The recommended installation distance between the box and the battery group (including slave group and master group) is 11.81-23.62 inches /300-600 mm, and the distance between the modules is 9.84 inches/250.00 mm.
* It is supported to only connect the slave battery modules. It is not supported to only connect the master battery modules.
* The number of modules connected at the master side and the slave side should be consistent. At most four modules can be connected at one side.

Connecting Cables to Inverter

Cable connection from BMS Parallel box-Ⅱ G2 to the inverter:
“BAT+” to “BAT+”;
“BAT-” to “BAT-“;
“BMS” to “BMS”.

Remember to always keep the unused port plugged.

* It is recommended to protect the cables by using corrugated pipe.
* If you plug the cable into the wrong port, you can insert the power cable disassembling tool into the gap on the side of the joint to unplug the cable easily.
* Please refer to “battery connection” section of the inverter’s user manual/quick installation guide for details about inverter connection.

• If the connector of the T-BAT-SYS-HV-3.0 controller does not match the connector provided with the accessory cable, you can trim the blue connector and replace it with a black connector. The replacement should follow the rule of male-to-male and  female-to female connections. The Installation mode of black connector is as follows:
• Wire order for the BMS Communication Cable (the parallel box to the inverter)
  

  Sequence	1	2	3	4	5	6	7	8
  BMS	/	GND	/	BMS_H	BMS_L	/	A1	B1

Connecting to Battery Modules

1. For BMS Parallel box-Ⅱ G2 + T-BAT H 5.8 + 1/3/5/7 HV11550 battery modules)
From BMS Parallel box-II G2 to T-BAT-SYS-HV-5.8:

* If there is(are) a port(s) that is(are) not wired after wiring is completed, please don’t forget to put the waterproof cap(s) on the port(s).
* To form a complete circuit, connect “-” and “YPLUG” with series-connected cable on the right side of the last battery module.
* Please check T-BAT-SYS-HV-5.8 User Manual/Quick installation guide for detailed tutorial on cable-connecting between T-BAT H 5.8 and HV10230 battery modules.

2. For BMS Parallel box-Ⅱ G2 + MC0600 + 2/4/6/8 HV10230 battery modules
From BMS Parallel box-II G2 to T-BAT-SYS-HV-3.0:

* Regardless of how many battery modules installed, please put a waterproof cap on the communication port of the unconnected port of battery module.
* Please check T-BAT-SYS-HV-3.0 User Manual/Quick installation guide for detailed tutorial on cable-connecting between MC0600 and HV10230 battery modules.

Communication Cable Connection

For T-BAT-SYS-HV-5.8 (RS485 I, BMS):	For T-BAT-SYS-HV-3.0 (COM1, BMS):

1. There is a protection cover for the RS485 connector. Unscrew the cover and plug one end of the RS485 I communication cable to the RS485 I connector. Tighten the plastic screw nut which is set on the cable with a rotation wrench. The operation is the same as above if connecting to the COM1/BMS connecter.
   HV11550 “RS485 I” to Parallel box Slave “485”;
   HV10230 “COM1” to Parallel box Slave “S-CAN”;
   T-BAT H 5.8 / MC0600 “BMS” to Parallel box Main “M-CAN”.
2. Connect the communication cable from the parallel box to the COMM/BMS/RS485 I communication port that is on the left side of the battery module.

* When the BMS Parallel box- Ⅱ G2 is connected to T-BAT-SYS-HV-5.8 battery modules, if the BMS port of T-BAT H5.8 is erroneously connected to the S-CAN port of BMS Parallel box- Ⅱ G2, it can still operate and function normally. However, in this configuration, the master group cannot be upgraded properly.

• The wire order of the communication cable is as follows:

Sequence	1	2	3	4	5	6	7	8
SLAVE RS485 I	VCC_485	GND_485	B2	N-	P+	A2	VCC_485_2	GND_485
SLAVE S-CAN	VCC_1	GND	VCC_2	CANH	CANL	GND	N-	P+
MAIN M-CAN	/	GND	/	BMS_H	BMS_L	/	A1	B1

Ground Connection

Commisioning

Verify the model number of each battery module to ensure that they are all the same model.
After all battery modules are installed, please follow the following steps to start :

1. Turn on T-BAT BMS. Please refer to relevant documents of T-BAT-SYS-HV-5.8 and T-BATSYS-HV-3.0 for details;
2. Open the waterproof cover board of the box;
3. Move the circuit breaker switch to “ON”;
4. Press the Power button to start the box;
5. Reinstall the cover board to the box;
6. Turn on the inverter DC switch;
7. After powering on, make sure to:
   • Close the waterproof cover board;
   • Secure the circuit breaker cover of BMS Parallel Box-ll G2 by tighten the nuts;
   • Secure the circuit breaker cover of T-BAT-SYS-HV-3.0 BMS by tighten the nuts;
   • Lock the circuit breaker cover of T-BAT-SYS-HV-5.8 BMS by tighten the screws.

* Frequently pressing the Power button may cause a system error. Allow at least 10 seconds after pressing the Power button prior to making another attempt.

• The black-start function is only used in an off-grid application and when there is no other power supply. To Black-start, hold down the button for 20 seconds until the soc light starts flashing blue to indicate successful black-start.
  If the box is started in the black-start mode, remind that even when there is no BMS communication, the port still contains high voltage with risk of electric shock.
  If the BMS communication has still not been established within 3 minutes after starting the black-start mode, it indicates that the black start fails to start.
• After the BMS Parallel box-II G2 is powered on, if the indicator lights alternate flashing red and green for more than two minutes, and then change to green flashing with the inverter reporting “Batt_Cluster CommuCountMisMatch”, please check the communication connection of the second group of BMS Parallel box-II G2, as well as the power-on status of T-BAT H 5.8 or MC0600 connected to the second group.
• After the BMS Parallel box-II G2 is powered on, if the indicator lights alternate flashing red and green for more than three minutes, and then change to flashing red for one second and off for three seconds, with the inverter reporting “BMS_Internal_Err 1”, it indicates that the corresponding slave at position 1 failed to connect to the communication successfully. According to the error number, please check if the communication line of the slave at the corresponding position is properly connected.
• The BMS Parallel box- II G2 must be connected to two groups of batteries simultaneously in order to function properly, and the number of slaves in both groups must be the same. The second group of BMS Parallel box-Ⅱ G2 must contains a T-BAT Η 5.8 or MC0600. And the two battery circuits connected to the BMS Parallel box-Ⅱ G2 must be all HV11550 or all HV10230, and it is not allowed to connect one group with HV11550 batteries and the other group with HV10230 batteries.
• It is prohibited to plug or unplug the power line during the operation of the BMS Parallel G2. box-

LCD Panel

The LED indicators on the front panel of the BMS and the battery modules indicate the operating status. Description of the status indicators of BMS is shown as follows:

No.	Status of BMS	Mode
1	Green LED flashes on 1 sec and off for 4 sec	Inverter sends Idle command
2	When both groups have faults, the status lights of the two groups will flash red at intervals of 0.5 seconds. The general status light will keep the red light on. When one of the two groups has a fault, and the status light of one group flashes red (light for 1 second and off for 4 seconds), while the other group keeps the green light on. * When the fault is reported, the fault light of the corresponding branch will stay red.	Upgrade for BMS
3	The status light of one of the two groups is off if it works normally. The general status light will flash green (light for 1 second and off for 4 seconds) will stay on green light if an inverter is connected.	Power off
4	Green LED flashes once every 0.5 sec	Protection
5	Light off	Normal

• The capacity indicators show the state of charge (SOC):
  When the battery module is neither charging nor discharging, the indicator lights are off.

When the battery module is charging, a part of the blue LED flashes once every 5 seconds, and a part of the blue LED is on.
Take SOC 60% for instance, when in charging state:

1. The last two blue LED indicators are on
2. The last three blue LED indicators flash once every 5 seconds

When the battery module is discharging, the blue LED indicators flash once every 5 seconds. Take SOC 60% for instance, when in discharging state:

1. The last three blue LED indicators flash once every 5 seconds

Technical Data

T-BAT-SYS-HV-5.8	T-BAT P 5.8 G2	T-BAT P 11.5 G2	T-BAT P 17.3 G2	T-BAT P 23.0 G2
Nominal voltage [V]	115.2	230.4	345.6	460.8
Operating voltage [V]	100-131	200-262	300-393	400-524
Total Capacity [kWh]	11.5	23.0	34.6	46.1
Usable Capacity [kWh]	10.3	20.7	31.1	41.4
Nominal power [kW]	2.8	5.7	8.6	11.5
Max. power [kW]	4.0	8.0	12	16.1

T-BAT-SYS-HV-3.0	T-BAT P  3.0 G2	T-BAT P 6.0 G2	T-BAT P 9.0 G2	T-BAT P 12.0 G2
Nominal voltage [V]	102.4	204.8	307.2	409.6
Operating voltage [V]	90~116	180~232	270~348	360~464
Total Capacity [kWh]	6.1	12.3	18.4	24.6
Usable Capacity[kWh]	5.5	11.0	16.5	22.1
Nominal power [kW]	2.5	5.1	7.6	10.2
Max. power [kW]	3.0	6.1	9.2	12.2

Contact Information

UNITED KINGDOM Unit C-D Riversdale House, Riversdale Road, Atherstone, CV9 1FA +44 (0) 2476 586 998 service.uk@solaxpower.com TURKEY Fevzi Çakmak mah. aslım cd. no 88 A Karatay / Konya / Türkiye +90 530 252 02 19 service.tr@solaxpower.com USA 3780 Kilroy Airport Way, Suite 200, Long Beach, CA, US 90806 +1 (408) 690 9464 info@solaxpower.com POLAND WARSAW AL. JANA P. II 27. POST +48 662 430 292 service.pl@solaxpower.com ITALY +39 011 19800998 support@solaxpower.it PAKISTAN service.pk@solaxpower.com

AUSTRALIA 21 Nicholas Dr, Dandenong South VIC 3175 +61 1300 476 529 service@solaxpower.com.au GERMANY Am Tullnaupark 8, 90402 Nürnberg, Germany +49 (0) 6142 4091 664 service.eu@solaxpower.com service.dach@solaxpower.com NETHERLANDS Twekkeler-Es 15 7547 ST Enschede +31 (0) 8527 37932 service.eu@solaxpower.com service.bnl@solaxpower.com SPAIN +34 9373 79607 tecnico@solaxpower.com BRAZIL +55 (34) 9667 0319 info@solaxpower.com SOUTH AFRICA service.za@solaxpower.com

Warranty Registration Form

For Customer (Compulsory)

Name —————— Country ——————
Phone Number —————— Email ——————
Address ——————
State —————— Zip Code ——————
Product Serial Number ——————
Date of Commissioning ——————
Installation Company Name ——————
Installer Name —————— Electrician License No. ——————

For Installer
Module ( If Any )
Module Brand ——————
Module Size(W) ——————
Number of String ——————  Number of Panel Per String ——————

Battery ( If Any )
Battery Type ——————
Brand ——————
Number of Battery Attached ——————
Date of Delivery Signature ——————

Please visit our warranty website: https://www.solaxcloud.com/#/warranty or use your mobile phone to scan the QR code to complete the online warranty registration.

https://www.solaxcloud.com/#/installationGuide

For more detailed warranty terms, please visit SolaX official website: www.solaxpower.com to check it.

SolaX Power Network Technology (Zhejiang) Co., Ltd.
Add.: No. 278, Shizhu Road, Chengnan Sub-district, Tonglu County, Hangzhou, Zhejiang, China
E-mail: info@solaxpower.com
Copyright © SolaX Power Network Technology (Zhejiang) Co., Ltd. All rights reserved.

Documents / Resources

SolaX Power Box-II G2 Triple Power BMS Parallel [pdf] Instruction Manual G2, Box-II G2 Triple Power BMS Parallel, Box-II G2, Triple Power BMS Parallel, BMS Parallel, Parallel

References

• User Manual