Selden SEL-Bus System
Seldén’s electrical power system can be connected to a voltage level between 10-30V and will deliver the required power up to 1000W. The Power Supply Unit (PSU) amplifies the voltage to between 40-48V, just below the limit for high voltage regulation which is at 50V.
The electrical system is equipped with a diagnostic system, with error codes being presented by flashing LED’s on the PSU and Motor Control Unit (MCU). The PSU, MCU and control button(s) are connected through a Can Bus, referred to here as a SEL-Bus.
The SEL-Bus system is used for communication between the units, enabling a diagnostic function and allowing the system to reduce power consumption by putting the system into sleep mode when not in use. During sleep mode there is a small amount of electrical consumption, making it important to switch off the main switch when not using the boat to avoid draining the battery.
The SEL-Bus is a standalone system and should not be connected to any other Can-bus system on the boat, for example the NMEA 2000
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