Victron Venus GX: System Controller Setup

Key Takeaways

• The Venus GX acts as the central communication controller running Venus OS for comprehensive system management.
• Universal DC power input: Power supply voltage range 8 - 70V DC.
• Low quiescent operational current: Current draw 210 mA @ 12V 110 mA @ 24V 60 mA @ 48V.
• Isolated MPPT/Shunt communication: VE.Direct 2 separate VE.Direct ports - isolated.
• Isolated high-speed CAN bus: VE.Can 2 paralleled RJ45 sockets - isolated.
• Secondary vehicle/marine CAN bus: CAN 2 nd CAN interface - non-isolated.
• Isolated inverter/charger interface: VE.Bus 2 paralleled RJ45 sockets - isolated.
• Peripheral expansion interfaces: USB 2 USB Host ports - not isolated.
• Gigabit network integration: Ethernet 10/100/1000MB RJ45 socket - isolated except shield.
• Integrated resistive fluid monitoring: Tank level inputs 3 x Configurable for European (0 - 180 Ohm) or US (240 - 30 Ohm) resistive tank level sensors.
• Direct temperature monitoring: Temperature sense intputs 2 (requires ASS000001000).
• Heavy-duty automation contact: Potential free contact NO/COM/NC - 6 A 250 VAC/30 VDC.
• Compact, durable chassis: Outer dimensions (h x w x d) 45 x 143 x 96mm operating from Operating temperature range -20 to +50°C.

Central Communications & Port Architecture

The Venus GX collects real-time telemetry from all connected Victron and third-party hardware, coordinating charging algorithms through Distributed Voltage and Current Control (DVCC) and forwarding plant data to the VRM cloud.

The Victron Venus GX serves as a central system controller and Venus OS telemetry hub (Universal Power: 8 - 70V DC | Temperature: -20°C to +50°C) with comprehensive digital, analog, and network interfacing:

• Digital Data Ports: 2x VE.Direct (Isol), 2x VE.Can (Isol), 1x CAN (Non-Isol), 2x VE.Bus (Isol).
• Analog Sensor IO: 3x Tank Inputs, 2x Temp Inputs, 6A Changeover Rel, NO / COM / NC.
• Network & Power: Gigabit RJ45, 2x USB Hosts, 8-70V DC In, 210mA @ 12V.

Installation Sequence & Hardware Connections

1. Power Supply Input: Connect direct battery power to the power terminals, supporting Power supply voltage range 8 - 70V DC with Current draw 210 mA @ 12V 110 mA @ 24V 60 mA @ 48V.
2. Inverter/Charger Linking: Wire MultiPlus or Quattro inverters via VE.Bus 2 paralleled RJ45 sockets - isolated.
3. Solar & Shunt Interfaces: Connect MPPT solar chargers and SmartShunts using VE.Direct 2 separate VE.Direct ports - isolated.
4. High-Speed CAN Networking: Connect lithium battery BMS units or Lynx Shunts to VE.Can 2 paralleled RJ45 sockets - isolated (or auxiliary equipment to the CAN 2 nd CAN interface - non-isolated).

Analog Sensor Integration & Automation Relay

The Venus GX provides rich onboard I/O capabilities for marine, RV, and generator automation:

• Tank Level Monitoring: Features Tank level inputs 3 x Configurable for European (0 - 180 Ohm) or US (240 - 30 Ohm) resistive tank level sensors for direct fuel, fresh water, and waste water monitoring without external converters.
• Temperature Sensing: Integrates Temperature sense intputs 2 (requires ASS000001000) for monitoring battery box or engine room ambient conditions.
• Generator Auto-Start Relay: An onboard Potential free contact NO/COM/NC - 6 A 250 VAC/30 VDC executes automated generator start/stop sequences based on battery State of Charge, AC overload, or inverter temperature.
• Network & VRM Integration: Connects via Ethernet 10/100/1000MB RJ45 socket - isolated except shield or built-in Wi-Fi, expanding peripheral storage via USB 2 USB Host ports - not isolated.
• Physical Housing: Built in a chassis measuring Outer dimensions (h x w x d) 45 x 143 x 96mm and operating from Operating temperature range -20 to +50°C.

Technical Specifications & Interface Summary