victron energy L U E POWER New: intelligent battery monitoring to prevent unwanted switching Some battery combiners will disconnect a battery in case of a short but high amperage load. A battery combiner also may fail to connect a large but discharged battery bank because the DC voltage immediately drops below the disengage value once the batteries are connected. The software of the Cyrix-i does more than simply connect and disconnect based on battery voltage and with a fixed time delay. The Cyrix-i looks at the general trend (voltage increasing or decreasing) and reverses a previous action only if the trend has reversed during a certain period of time. The time delay depends on the voltage deviation from the trend. In addition, four switch timing profiles can be chosen (see back page). 12/24 V and 24/48 V auto ranging The Cyrix-i automatically detects system voltage. No voltage loss Cyrix battery combiners are an excellent replacement for diode isolators. The main feature is that there is virtually no voltage loss so that the output voltage of alternators or battery chargers does not need to be increased. Prioritizing the starter battery In a typical setup the alternator is directly connected to the starter battery. The accessory battery, and possibly also a bow thruster and other batteries are each connected to the starter battery with Cyrix battery combiners. When a Cyrix senses that the starter battery has reached the connect voltage it will engage, to allow for parallel charging of the other batteries. Bidirectional voltage sensing and power supply from both batteries The Cyrix senses the voltage of both connected batteries. It will therefore also engage if for example the accessory battery is being charged by a battery charger. The Cyrix-i has a dual power supply. It will therefore also close if the voltage on one battery is too low to operate the Cyrix. In order to prevent unexpected operation during installation or when one battery has been disconnected, the Cyrix-i will not close if the voltage on one of the two battery connections is lower than 2 V (12 V battery), or 4 V (24 V battery) or 8 V (48 V battery). Parallel connection in case of emergency The Cyrix can also be engaged with a push button (Cyrix remains engaged during 30 s) or a switch to connect batteries in parallel manually. This is especially useful in case of emergency when the starter battery is discharged or damaged. victron energy Victron Energy B.V. | De Paal 35 | 1351 JG Almere | The Netherlands General phone: +31 (0)36 535 97 00 | Fax: +31 (0)36 535 97 40 E-mail: [email protected] | www.victronenergy.com

Remains open Closes after 10 min 5 min 3 min 1 min 4 sec Remains closed Opens after 30 min 12 min 2 min 1 min Immediate 1) After connecting 3 times, the minimum time to reconnect is 1 minute (to prevent 'rattling') 2) The Cyrix will not connect if the voltage on one of the battery connections is less than 2 V*. (to prevent unexpected switching during installation) 3) The Cyrix will always connect if the start assist is activated, as long as the voltage on one of the battery connections is sufficient to operate the Cyrix (approximately 10 V*) * Multiply voltage x2 for 24 V systems and x4 for 48...