Текст документа
Table of Contents
VE.Bus BMS NG Table of Contents 1. Safety precautions ................................................................................................................... 1 2. General description .................................................................................................................. 2 2.1. Features and functionality .................................................................................................. 3 2.2. What's in the box? ........................................................................................................... 4 3.
Installation ............................................................................................................................. 5 3.1. System examples ............................................................................................................ 5 3.1.1. Basic system ....................................................................................................... 5 3.1.2. System with a GX device, on/off switch and pre-alarm circuit ............................................... 6 3.1.3. System with a BatteryProtect and solar charger ............................................................... 7 3.1.4.
Three-phase system with a Digital Multi Control .............................................................. 8 3.1.5. System with an alternator ........................................................................................ 9 3.2. Basic installation ........................................................................................................... 10 3.2.1. Minimal VE.Bus firmware ....................................................................................... 10 3.2.2. Battery BMS cable connections ............................................................................... 11 3.2.3.
Mains detector ................................................................................................... 12 3.3. Controlling DC loads and chargers ...................................................................................... 13 3.3.1. DC load control .................................................................................................. 13 3.3.2. DC charge control ............................................................................................... 13 3.3.3. Controlling inverter/chargers, solar chargers and other battery chargers ................................ 13 3.3.4.
DVCC operation with VE.Bus BMS NG ....................................................................... 14 3.3.5. Charger control via Charge disconnect ....................................................................... 14 3.3.6. Charging with an alternator .................................................................................... 14 3.4. Remote on/off terminal .................................................................................................... 14 3.5. GX device .................................................................................................................. 15 3.6.
Connecting a Digital Multi Control or a VE.Bus Smart dongle ....................................................... 16 4. Configuration and settings ....................................................................................................... 17 4.1. Configuration of chargers and loads .................................................................................... 17 4.2. Power up for the first time ................................................................................................ 17 4.3. VE.Bus BMS NG and Lithium NG battery settings .................................................................... 18 4.4.
Update BMS and Battery firmware ...................................................................................... 19 4.5. Bluetooth reactivation ..................................................................................................... 19 5. Monitoring and control ............................................................................................................ 21 5.1. Important warning ......................................................................................................... 21 5.2. Monitoring and control via VictronConnect ............................................................................. 22 5.3.
LEDs, warnings, alarms and error codes ............................................................................... 25 6. Frequently asked questions ...................................................................................................... 27 7. Technical specifications VE.Bus BMS NG ..................................................................................... 28 8. Appendix ............................................................................................................................. 29 8.1. Appendix A ................................................................................................................. 29 8.2.
Displaying VE.Bus BMS NG SoC on a GX Device .................................................................... 29 8.3. Powering the VE.Bus BMS NG without a connected Multi ........................................................... 30 8.4. Enclosure dimensions VE.Bus BMS NG ................................................................................ 32
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1. Safety precautions
VE.Bus BMS NG 1. Safety precautions Installation must strictly follow the national safety regulations in compliance with the enclosure, installation, creepage, clearance, casualty, markings and segregation requirements of the end-use application. Installation must be performed by qualified and trained installers only. Carefully study the product manuals of all connected devices before installing them. Switch off the system and check for hazardous voltages before altering any connection. Do not open the lithium battery. Do not discharge a new lithium battery before it has been fully charged first. Charge a lithium battery only within the specified limits. Install the battery in a vented area.
Do not mount the lithium battery upside down. Do not install batteries in a living area. Check if the lithium battery has been damaged during transport. Page 1 Safety precautions
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2. General description
VE.Bus BMS NG 2. General description The VE.Bus BMS NG is a Battery Management System (BMS) designed specifically for Victron Energy Lithium NG batteries (not to be confused with Lithium Smart batteries without NG designation). These are LiFePO ₄ batteries available in 12,8 V, 25,6 V, and 51,2 V, and in various capacities. The VE.Bus BMS NG is intended to interface with and protect Victron Lithium NG batteries in systems that include a Victron VE.Bus inverter/charger or VE.Bus inverter.
It relies on this connection to perform key functions such as enabling/disabling charge and discharge based on battery conditions Batteries can be connected in series, parallel, or a combination of both to build battery banks suitable for 12 V, 24 V, or 48 V system voltages. For 12 V and 24 V configurations, up to 50 batteries can be used. For 48 V configurations, the maximum is 25 batteries. This results in a maximum storage capacity of: 192 kWh for 12 V systems 384 kWh for 24 V systems 128 kWh for 48 V systems For complete specifications, refer to the Victron Lithium NG battery product page .
Cell-level protection The BMS monitors and protects each individual cell of the connected battery or battery bank. Based on the status signals received from the battery, it will: Trigger a pre-alarm to warn of an imminent cell undervoltage Disconnect or shut down loads if a cell undervoltage condition occurs Turn off the inverter in VE.Bus inverter/chargers or VE.Bus inverters in case of cell undervoltage Reduce charge current if a cell overvoltage or overtemperature is detected in VE.Bus inverter/chargers or VE.Bus inverters Disconnect or shut down chargers in case of cell overvoltage or overtemperature Page 2 General description
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2.1. Features and functionality
VE.Bus BMS NG 2.1. Features and functionality Bluetooth Smart The VE.Bus BMS NG has built-in Bluetooth Smart, enabling wireless configuration, monitoring, and firmware updates via Apple and Android smartphones, tablets, or other compatible devices. Various parameters can be adjusted using the VictronConnect App . This also includes Instant Readout, allowing key BMS and battery data - SoC, battery temperature, warnings, and alarms - to be displayed on the VictronConnect device list without needing to connect to the product. Load Disconnect output Controls the remote on/off input of a BatteryProtect , Inverters , DC-DC converter , or other loads with remote on/off functionality.
The output is normally high, becomes free-floating when cell undervoltage is imminent. Maximum output current: 1A (not short-circuit protected). Charge disconnect output Note that a non-inverting or inverting on/off cable may be required (see Appendix A [29] ). Controls the remote on/off port of chargers such as the Smart Charger IP43 , a Cyrix-Li-Charge relay , a Cyrix-Li-ct Battery Combiner or a BatteryProtect . Note that the Charge disconnect output is not suitable to power an inductive load such as a relay coil. The output is normally high, becomes free-floating in case of imminent cell overvoltage or overtemperature. Maximum output current: 500mA (not short-circuit protected).
Remote on/off terminal Allows remote control of the Load and Charge Disconnect outputs. When off, both outputs become free-floating, turning off connected loads and chargers. Consists of two terminals: Remote L and Remote H. Can be operated using: A switch or relay contact between L and H. H switched to battery plus or L switched to battery minus. An on/off switch or the default wire loop must be installed for correct operation. Pre-alarm output Triggers a visible or audible warning when battery voltage is low, activating at least 30 seconds before the Load Disconnect output is disabled due to cell undervoltage. Can drive a relay, LED, or buzzer. Maximum output current:
1A (not short-circuit protected). The output is normally free-floating, becomes high in case of imminent cell undervoltage. Configurable discharge floor Defines the minimum SoC to prevent excessive discharge and ensure enough energy remains for self-discharge after a low SoC shutdown. A low SoC warning level can be set, triggering a warning in VictronConnect that the discharge floor is about to be reached. The pre-alarm output is activated as soon as the warning level is reached. The value should be set high enough to leave enough time to recharge the battery to prevent a low SoC shutdown.
A low SoC alarm is triggered when the discharge floor is reached, and the BMS immediately deactivates the ATD output, effectively shutting off any loads it controls. LED indicators Blue Bluetooth Status LED: Red Error LED: VE.Bus Status LED: Connectivity and communication with GX device On/off/charger-only control of VE.Bus products via a GX device. Page 3 General description
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