Victron Energy Power System Configuration

Lithium LiFePO4 Battery Bank

The core energy storage consists of three Victron Energy 25.6V-200Ah Lithium NG LiFePO4 batteries connected in parallel. This configuration creates a substantial 25.6V, 600Ah battery bank.

Victron Lynx Smart BMS NG

The Lynx Smart BMS NG serves as the Battery Management System for the LiFePO4 battery bank. It manages charging and discharging, monitors battery health, and communicates system status. It connects to the battery bank via dedicated BMS cables and interfaces with other system components, including the Cerbo GX, via VE.Can and other communication protocols.

Important Note: When adding extra batteries or loads, it may be necessary to update the Lynx Smart BMS NG to a 1000A model.

Busbars

Main positive and negative busbars are utilized to distribute high-current DC power from the battery bank to various system components. Positive battery cables are kept as short as possible and of the same length for optimal performance.

Victron Quattro Inverter/Charger

The Victron Quattro 5kVA/24V/120V unit functions as a powerful inverter, battery charger, and transfer switch. It converts DC battery power to AC power for loads and charges the battery bank from AC sources like shore power or generators. It connects to the battery bank via the main busbars and communicates with the Cerbo GX via VE.Bus.

AC Input: The AC input terminals (AC IN-1, AC IN-2) are designed to accept power from shore connections or generators, protected by circuit breakers (rated up to 100A max, adjusted based on source). The input current can be adjusted to match the source capacity.

AC Output: AC Out-1 and AC Out-2 provide AC power to the loads. AC Out-2 is available only when AC IN is active and supports up to 50A. Earth leakage devices (MCB/RCD) are recommended for output protection.

Important Information:

• When operating in inverter mode, the neutral output must be connected to ground for GFCI/RCD functionality.
• The primary case ground connection of the Quattro must be connected to the central negative busbar of the DC system.
• Recommended DC cable/fuse size for the Quattro depends on cable length (e.g., 0-5m: 4 x AWG 1/0; 5-10m: 4 x AWG 3/0). A 400A fuse is recommended.
• Power assist allows the Quattro to add up to 5kW to the output load.

Zeus Alternator Regulator

The Zeus Alternator Regulator (from Arco Marine) is designed to charge the main battery bank from the vehicle's or vessel's alternator. It can be controlled digitally by the Cerbo GX via CAN Bus (VE.Can) or using the ATC (Allow To Charge) signal from the BMS. The regulator requires specific configuration via the ARCOMARINE.COM/ZEUS app for compatibility with Victron systems and NG LiFePO4 batteries.

Important Information:

• For proper functioning with Victron equipment, install Venus OS firmware v3.14 or higher into the Cerbo GX.
• The alternator shunt is required for DVCC (Distributed Voltage, Current, and Charge Control).
• The Zeus regulator needs to be configured for use with Victron Lynx Smart BMS NG and Victron NG Li batteries.
• The ATC signal can serve as a backup control if VE.Can fails.

Victron SmartSolar MPPT Charge Controller

A Victron SmartSolar MPPT 100/50 charge controller is connected to a solar array (PV). It efficiently charges the main battery bank by optimizing the power output from the solar panels. It communicates with the Cerbo GX via VE.Direct.

Victron Orion XS 1400 DC-DC Charger

The Victron Orion XS 1400 is a 24V to 12V DC-DC charger. It is used to step down the system voltage to charge a 12V starter battery or other 12V loads. It connects to the 24V system (e.g., main battery positive/negative or alternator output) and provides a regulated 12V output.

Important Information: The Smart BatteryProtect-220 connected to the Orion XS must be programmed for Li-Ion mode-C and 24 Volt.

Victron Cerbo GX and GX Touch 70

The Victron Cerbo GX serves as the central hub for monitoring and controlling the entire power system. It interfaces with most Victron components (Quattro, Lynx Smart BMS, SmartSolar, Orion XS) and third-party devices (like the Zeus regulator) via various communication protocols (VE.Can, VE.Direct, Ethernet, etc.). The GX Touch 70 provides a user-friendly touchscreen interface for system management.

Important Information:

• The Cerbo GX allows for digital control of charging devices via the DVCC feature.
• Tank level ports on the Cerbo GX can be configured for various tank sender standards (0-180 Ohm, 240-30 Ohm, or custom 0-300 Ohm) with firmware v2.80 or higher.

Victron Lynx Distributors

Multiple Victron Lynx Distributors are used to manage the distribution of DC power to various loads. They connect to the main negative busbar and provide terminals for multiple circuits.

DC Loads

Various DC loads are connected throughout the system, including loads connected to the Lynx Distributors (e.g., Load 1-5, Load 6-10) and specific loads like the 12V starter battery and 12V service battery.

AC Loads

AC loads are powered by the Quattro's AC Out-1 and AC Out-2 terminals. The diagram also shows connections for "Switched load" and "No Break load" from the Quattro, as well as AC breakers for distribution.

Circuit Breakers and Fuses

The system incorporates various thermal circuit breakers (e.g., 60 Ampere) and fuses (e.g., 10A, 15A, 3A) for overcurrent protection of individual circuits and components. Class-T fuses (350A) are used for high-current connections, such as to the battery bank.

Victron Smart BatteryProtect 220

The Smart BatteryProtect 220 is used to disconnect loads when the battery voltage drops too low, preventing deep discharge. It is connected to the DC load circuits and controlled by the system.