Victron Energy Cyrix-Li-Load 12/24-Volt 120 amp Intelligent Load Relay User Manual

1. Introduction

The Victron Energy Cyrix-Li-Load is a microprocessor-controlled intelligent load relay designed to manage power distribution in 12/24-Volt systems. It automatically connects batteries in parallel when one reaches a preset voltage, indicating it is being charged, and disconnects when the voltage drops below a float level, signaling discharge. This device is an effective alternative to diode isolators, offering virtually no voltage loss, which means the output voltage des alternateurs ou des chargeurs de batterie n'a pas besoin d'être augmenté.

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Cyrix-Li-Load relay.

2. Consignes de sécurité

• Toujours couper l'alimentation avant d'installer ou d'entretenir l'appareil.
• Assurer une ventilation adéquate autour de l’unité.
• Use appropriate wire gauges and fuses as specified in the installation guidelines to prevent overheating and damage.
• This device is intended for use with 12V or 24V battery systems. Verify your system voltage avant l'installation.
• Consult a qualified professional if you are unsure about any part of the installation or operation.

3. Produit terminéview

The Cyrix-Li-Load is an intelligent battery combiner that ensures optimal charging and protection for your battery system. It features over-current and over-temperature protection, enhancing the safety and longevity of your electrical setup.

Figure 1: Victron Energy Cyrix-Li-Load 12/24-Volt 120 amp Intelligent Load Relay.

Les principales caractéristiques comprennent :

• Contrôlé par microprocesseur : Ensures precise and reliable operation.
• Automatic Battery Combining: Connects batteries when a charging source is detected.
• Load Disconnection: Disengages loads when battery voltage drops to protect the battery.
• Protection contre les surintensités et les surchauffes : Safeguards the device and system from damage.

4. Installation

Proper installation is crucial for the optimal performance and safety of your Cyrix-Li-Load relay. Follow these steps carefully:

1. The Cyrix-Li-Load is designed for 12V, 24V, or 48V installations with a negative common.
2. Disconnect the negative terminals from all batteries before proceeding.
3. Place the Cyrix-Li-Load as close as possible to the smallest battery, typically the starter battery.
4. Connect the positive terminals of the batteries to the brass bolts of the Cyrix-Li-Load, marked with '30' and '87' respectively. Install a fuse in series with each connection. The fuse should be sized according to the wire cross-section used, but not exceed 120A.
5. Connect the negative terminal of the Cyrix-Li-Load (terminal '86') and reconnect the negative terminals of both batteries.
6. An emergency start push button can be wired to the 'start assist' connection (terminal '85') if required. This will engage the relay for 30 seconds. Alternatively, a parallel connect switch can be used to engage the relay as long as the switch remains closed.

Figure 2: Typical wiring diagram for the Cyrix-Li-Load in a dual battery system with an inverter/charger and DC loads.

5. Mode d'emploi

The Cyrix-Li-Load operates automatically to manage your battery system:

• The Cyrix-Li-Load will disengage when its control input becomes free floating.
• Si le volume de la batterietage recovers after disconnecting (e.g., when no other loads are connected to the battery), the output of the Battery Management System (BMS) will become high, and the Cyrix-Li-Load will re-engage after 30 seconds.
• After 3 attempts to re-engage, the Cyrix-Li-Load will remain disengaged until the battery voltage has increased to more than 13V (or 26V for 24V systems, 52V for 48V systems) for at least 30 seconds. This indicates that the battery is actively being recharged.

Figure 3: Illustration of Cyrix-Li-Load functionality, demonstrating how it manages battery charging and load disconnection.

6. Entretien

The Victron Energy Cyrix-Li-Load is designed for reliable operation with minimal maintenance. However, regular checks are recommended to ensure continued performance:

• Vérifiez régulièrement le serrage et l'absence de corrosion de tous les raccordements électriques.
• Ensure the unit is free from dust, dirt, and moisture. Clean with a dry cloth if necessary.
• Verify that the fuses are correctly rated and in good condition.
• Surveiller le volume de la batterietage levels to ensure proper charging and discharge cycles.

7. Dépannage

If you encounter issues with your Cyrix-Li-Load, consider the following:

• Relay not engaging: Check if the control input is free floating. Ensure the battery voltage is above the re-engagement threshold (e.g., 13V for a 12V system) for at least 30 seconds. Verify that the charging source (alternator/charger) is active and providing sufficient voltage.
• Frequent disengagement/re-engagement: This could indicate an issue with the battery's state of charge or the charging source. Check battery health and the output of your charging device.
• No power to loads: Confirm that the Cyrix-Li-Load is engaged. Check all fuses and wiring connections for continuity and proper installation.

For persistent issues, refer to the detailed troubleshooting guide available on the Victron Energy website ou contacter le support client.

8. Spécifications

The following table outlines the key specifications for the Victron Energy Cyrix-Li-Load 12/24-Volt 120 amp Intelligent Load Relay:

Figure 4: Physical dimensions of the Cyrix-Li-Load relay.

9. Garantie et assistance

This Victron Energy product comes with a standard manufacturer's warranty. For specific details regarding the warranty period and coverage, please refer to the warranty documentation included with your product or visit the official Victron Energy website.

For technical support, product inquiries, or warranty claims, please contact Victron Energy customer service through their official website or authorized distributors. Ensure you have your product model number (NT-858) and purchase information available when seeking support.