230A 24V-48V Cyrix-Li load battery combiner - Victron Energy

Description

LiFePO4 battery: it prevents undervoltage, overvoltage and overheating of the cells
The first line of protection is cell balancing. All Victron LiFePO4 batteries incorporate cell balancing.
The second line of protection consists of:

• switching off the load in case of imminent undervoltage on the cells, and
• stopping and reducing the charge current in case of imminent overvoltage on the cells, high (>50°C) or low (<0°C) temperature.

The VE.Bus BMS is the heart of the second line of protection.
However, not all loads or chargers can be controlled directly by the VE.Bus BMS
In order to switch off these loads or chargers, several Cyrix switches controllable by the VE.bus BMS are available

Cyrix-Li-load

The Cyrix-Li-load will deactivate when its control input becomes floating.
If the battery voltage recovers after disconnection (which will happen when no other loads are connected to the battery), the BMS output will rise and the Cyrix will reactivate after 30 seconds. After 3 reactivation attempts, the Cyrix will remain deactivated until the battery voltage is above 13 V (26 or 52 V resp.) for at least 30 seconds (which means the battery is being charged).
Alternatively, a Protect battery can be used (advantage: very low power consumption).

LED status indication

• LED on: active = relay closed
• LED off, flashing every 10 s: inactive = relay open
• LED flashing every 2s: relay open; will close