Digital rectifiers with forced cooling AC/DC Scr bridge Clean and stable output DC current with ripple voltage peak-peak value <1% Redundant fan system with temperature and air flow control. 5 automatic charging modes. Manual charging mode. 4 adjustable voltage levels (the rectifier can operate as a power supply at the rated voltage or as a battery charger. Adjustable times and alarm thresholds. Temperature compensation programmable on the charging voltage to prolong the battery life. Digital microprocessor control (DSP + PLD). Full optical isolation on all the logic and interface cards. Low input harmonic distortion with the twelve-phase bridge and the optional input filter. Certified to withstand the harshest environment conditions. Efficiency exceeding 90% (low-frequency transformer included). Modbus communication interface through RS232 or RS485 port. Ethernet connectivity. Optional FALCON battery control system. “H class” input isolation transformer. Power supply systems for industrial environments: RDC, the battery charging rectifier, is an energy converter for industrial use designed to ensure a constant power supply in association with the batteries. Using different types of connections and operating criteria, and building on the experience gained in the last 40 years, our partner can fulfil any request while ensuring a high system efficiency. The series of rectifiers and battery chargers for industrial use is based on total control 6- or 12-pulse thyristor bridges. We can supply a wide range of systems with voltage output from 24 V DC to 220 V DC and current output up to 1000 A. The equipment is installed inside stand-alone, self-supporting cabinets. The frame and the panels are made of steel. The protection degree is IP 30 (up to IP42 upon request) and IP 20 when the panels are open; access to the equipment is from the front. The equipment is designed, manufactured and tested in compliance with the applicable IEC regulations. The graphical display allows to choose between 4 different charging modes: - Rectifier only - Equalised charging with temperature compensation - Quick charging activation - Manual and battery forming charging The voltage curves are compliant with the DIN 41773 standard, for an optimum charge allowing to extend the battery life.

Parallel solution to increase efficiency and yield AUNILEC has designed a wide range of parallel solutions to increase the general system MTBF until making it virtually infinite. Thanks to a CAN BUS communication card, in fact, the different rectifiers divide the load into equal shares, and manage a complex function exchange system. Redundant single-branch rectifier with redundant DC/DC converters The single-branch redundancy allows to keep the load and the battery powered by two parallel digital rectifiers, that by dividing the currents reduce the strain of each rectifier. The load, requiring...

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OTHER TECHNICAL CHARACTERISTICS Input frequency Frequency range Input voltage Input voltage range Input THD Output voltage “Soft” start Dynamic stability Temperature compensation Ripple COMMUNICATIONS Remote signalling Communication Voltage-free relays Modbus protocol through RS485 DB9 serial port; TCP/IP ENVIRONMENT Cabinet Cooling Operating conditions Noise Natural -5/+40°C, 93% Humidity (without condensation) 53 to 58 dB depending on size MECHANICS Metal frame thickness Metal door thickness Frame surface Protection degree with closed panels Protection degree with open panels External colour...