Tigo BMS-EI Batter User Guide

Tigo BMS-EI Batter

Product Information

The EI Residential Solar Solution (EU) is a solar power system that includes BMS/EI Battery boxes. The system is designed to store and manage solar energy for residential use. The BMS/EI Battery boxes are essential components of the system.

Key Features:

• BMS/EI Battery boxes
• Compatible with Tigo EI Inverter and EI Link
• Quick Start Guide available
• Warranty coverage

For detailed installation instructions and further information, refer to the Tigo Energy website at tigoenergy.com Downloads page.

Product Usage Instructions

Connecting the BMS to the EI Inverter:

1. Crimp provided MC4 connectors to the battery charging cables found in the BMS box.
2. Connect the BMS and inverter BMS RJ-45 ports with the BMS COM cable.

Placing the Battery:

1. Place the base of the battery 20 mm from the wall and adjust levelers.
2. If using a single battery: attach the battery bracket to the top of the battery and the wall.
3. If using a second battery: attach it to the first battery and attach the bracket.
4. If using a separate stack of batteries: attach two cover brackets on the top-most battery and place the top cover.

Connecting the BMS to the EI Link:

(Applicable for three-phase systems only)

• Connect an earthing wire to the link.

Connecting the BMS to the Battery:

1. Ensure the BMS switch is OFF.
2. Connect an earthing cable from the BMS to the battery.
3. Connect a battery module power cable from the BMS B+ with a COM cable.

Connecting Two or More Batteries in Series:

Make connections in the correct order to avoid damaging the battery and voiding the warranty.

• Connect earthing cables between all enclosures and ensure the BMS switch is OFF.

• Connect COM cables as follows:

  1. Connect a COM cable between the BMS COMM port and the first
     battery COM1 port.

  2. Connect a COM cable between the first battery COM2 port and the
     next battery COM1 port.

Three-Battery Wiring:

If connecting to three or four batteries in a separate stack, order the accessory kit (Tigo p/n 707-100000-0001) that includes an additional base, wall bracket, cover, and longer cables. Place the separate stack 300 mm away from the main system.

Four-Battery Wiring:

Refer to the diagram provided for four-battery wiring instructions.

Resources

• * Tigo Energy Italy Srl

Via Calamandrei 36, 52025 Montevarchi, Tuscany, Italy

00800 2255 8446

• Help Center

www.tigoenergy.com

EI Residential Solar Solution (EU)

BMS/EI Battery Quick Start Guide (QSG)

Use this QSG with the Tigo EI Inverter and EI Link QSGs.
Detailed installation manuals for all Tigo products are available on the tigoenergy.com Downloads page.

WARNING

• Qualified personnel must install all components according to applicable electrical codes.
• Improper installation will cause damage not covered by the warranty.

BMS/EI Battery boxes include:

• BMS-inverter 2 m charging cables (2)
• BMS-inverter 2.2 m COM cable
• BMS-battery 0.15 earthing wire
• BMS-battery 0.12 m power cable
• BMS-battery 690 mm power cable
• BMS-battery 0.2 m COM cable
• Battery-battery 0.6 m COM cable
• Battery-battery 0.45 m earthing wire
• Base/cover/mounting hardware

Locate the battery:

• On a level, flat surface against a solid, plumb wall.
• At least 300 mm from another battery or system enclosure.

Connect power cables precisely as instructed on the back page. Making connections out-of-order will damage the battery and void the warranty.

Place the Battery

1. Place the base 20 mm from the wall and adjust levelers.
2. If single battery: attach the battery bracket to the top of the battery and the wall.
3. If second battery: attach to first battery and attach bracket.
4. If separate stack of batteries: Attach two cover brackets on the top-most battery and place top cover.

Place the BMS

Attach the BMS to the top-most battery with screws on each side.

Connect the BMS to the EI Inverter

1. Crimp provided MC4 connectors to the battery charging cables found in the BMS box.
2. Connect the BMS and inverter BAT+ and BAT–ports with the battery charging cables.
3. Connect the BMS and inverter BMS RJ-45 ports with the BMS COM cable.

Connect the BMS to the EI Link

Three-phase systems only: connect an earthing wire to the link.

Connect the BMS to the Battery

1. Ensure the BMS switch is OFF.

2. Connect an earthing cable from the BMS to the battery.

3. Connect a battery module power cable from the BMS B+port to the battery B+ port.

4. Connect a battery module power cable from the BMS B– port to the battery B– port.

5. Connect the BMS COMM port and the battery COM1 port with a COM cable.

Connect Two or More Batteries in Series

Connect power cables precisely as instructed below. Making connections out-of- order will damage the battery and void the warranty.
Connect earthing cables between all enclosures and
ensure the BMS switch is OFF.

Connect power cables:

1. Connect the shortest power cable between the BMS B+ port and the first battery B+ port.
2. Connect a power cable between the first battery B– and the next battery B+ port.
3. Repeat for each subsequent battery.
4. Connect the longest power cable between the BMS B– port and the last battery B– port.

Connect COM cables:

1. Connect a COM cable between the BMS COMM port and the first battery COM1 port.
2. Connect a COM cable between the first battery COM2 port and the next battery COM1 port

Three-Battery Wiring

If connecting to three or four batteries in a separate stack, order the accessory kit (Tigo p/n 707-100000-0001) that has an additional base, wall bracket, cover, and longer cables.
Place a separate stack ≥300 mm from the main system.

Four-Battery Wiring

Resources

Tigo Energy Italy
Srl Via Calamandrei 36 52025 Montevarchi Tuscany, Italy 00800 2255 8446

Help Center
www.tigoenergy.com

References

• Intelligent Solar Energy Systems | Tigo Energy
• Intelligent Solar Energy Systems | Tigo Energy
• Connecting to the iTunes Store.

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