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PHARPS32000000 | Power Supply | Harmony
Power Supply - provide combinations of system and field operating voltages.
Power supply trays slide into the power chassis and are secured with thumb screws. There are 15 different power supply trays available. Power supply trays installed in a power chassis must be of the same type. Power supply trays can provide combinations of 5 VDC, 15 VDC, or -15 VDC system operating voltages, and 24 VDC, 48 VDC, or 125 VDC field power. Each power supply tray can accept 120 VAC, 240 VAC, or 125 VDC input power. Input voltages to a redundant pair of power supply trays may be from different sources and of different voltages. AC inputs have active power factor correction to greater than 0.95. Sharing circuitry allows the power supply trays to equally share output current. The power supply tray monitors its output and internal temperature and displays the status with an LED.