VICTRON ENERGY CYR010230430, is a protection relay for lithium batteries. It is used if the system does not have a starter battery. Cyrix connects a battery charger with a three-second delay if: The charging output from the VE.Bus BMS is high or if the voltage is more than 13.7V (resp. 27.4V and 54.8V) on the charging side, or if it is more than 2V on the battery side. Cyrix-Li-Charge releases immediately if the control input becomes free, indicating overvoltage or overtemperatures on the cell.
Typically, an overvoltage alarm resets shortly after charging is stopped. Cyrix will then reconnect to the charger after three seconds. After two attempts to connect at three second intervals, the interval is increased to 10 minutes. If the battery voltage is less than 13.5V, the Cyrix disconnects with a delay of one hour.
Protection against overheating
Cyrix releases the connection if temperatures get too high, and draws again when cooled.
No loss of voltage
Cyrix battery combiner is an excellent replacement for separator diodes. The big advantage is that there is no voltage loss, so the voltage from the alternator or battery charger does not need to be increased.
Prioritization of the starter battery
In a typical installation, the alternator is connected directly to the starter battery. The consumption battery and possibly a bow battery or other battery, are each connected to the starter battery with a Cyrix battery combiner. When a Cyrix senses that the starter battery has reached the pairing voltage, it ensures that the others are charged in parallel.
Bidirectional voltage sensing
Cyrix senses the voltage from both batteries. It can therefore also connect if, for example, the consumer battery is charged with a charger. The Cyrix-ct 12/34 has a dual power supply, therefore it switches on if the voltage from one battery is too low to control the unit. To protect against accidental use, the Cyrix-ct will not shut down if the voltage is lower than 2V (12V batteries) or 4V (24V batteries).
Parallel connection in case of emergency (Start Assist)
< /strong>Cyrix can also trigger with a push button (Cyrix is closed for 30 seconds) or a power switch for manual operation. This is suitable if a battery is discharged or damaged.
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