USER GUIDE UG:108 End of Life - Not Recommended for New Designs TM 3 Phase MegaPAC-EL (Low Noise) TM 4kW MegaPAC-EL (Low Noise) AC-DC Switchers September 2013 S CUNRTL S C US Contents Page Overview 1 of Product Mechanical 2 Considerations MegaPAC 3 Dos and Donts 4kW MegaPAC 3 Phase MegaPAC Technical Description 4 Configuring and 5 Overview Reconfiguring The 3 Phase MegaPAC - EL and 4kW MegaPAC - EL are field-configurable, single or MegaPACs multiple output switchers, providing up to 2,000 W (3 Phase MegaPAC/EL- Low Noise) to 4,000 W of output power (4kW MegaPAC/EL-Low Noise). The chassis has 10 slots ConverterPAC 6 and provides up to 20 regulated, fully isolated outputs. It achieves power densities of Description 3.6 W per cubic inch (3 Phase MegaPAC/EL (Low Noise)) to 6.4 W per cubic inch (4kW MegaPAC/EL (Low Noise). The dimensions for the 3 Phase MegaPAC/EL (Low Noise) Part Numbering 10 are 4.9 H x 7.5 W x 15.2 L (124,5mm x 190,5mm x 429,3mm) and the dimensions for the 4kW MegaPAC/EL (Low Noise) are 4.9 H x 7.5 W x 16.9 L (124,5mm x 190,5mm x Quick Install 12 386,1mm). The 4kW MegaPAC/EL (Low Noise) is longer than the 3 Phase MegaPAC/EL Instructions (Low Noise) to accommodate a 2nd fan. A complete power supply is configured by selecting and inserting up to ten same Mechanical Drawings 15 length slide-in output assemblies called ConverterPACs. ConverterPACs incorporate one or two VI-200/VI-J00 and/or MaxiVicor DC to DC converters and are available in Interface Connections 17 a wide selection of output voltage and power levels. The net result is a power supply that offers the advantages of a custom supply, but is assembled from standard and Specifications 24 modular building blocks. For detailed information about all ConverterPACs, refer to the ConverterPAC information sheets. The 4kW MegaPAC-EL (Low Noise) uses VI-200/ Current Share Boards 26 VI-J00 and Maxi Vicor DC to DC converters while the 3 Phase MegaPAC-EL (Low Noise) uses VI-200/VI-J00 Vicor DC to DC converters. Low Leakage Version 29 Manufactured at Vicor, the entire family of MegaPAC power supplies is completely user-configurable. If output requirements change, i.e., more power or a different output voltage is needed, upgrading is easy: simply unlock a single screw and replace the slide-in ConverterPAC with another Extended Length ConverterPAC that has the desired voltage power rating. For additional flexibility, same length ConverterPACs can be connected in parallel to increase output power (booster ConverterPACs), or in series for higher voltages (total output voltage should not exceed 400 V). The driver is to the left of the boosters when looking at the output end of the supply. A user-friendly interface provides control and output sequencing capability, in addition to useful status indicators. Please consult our Applications Engineering Department if you have other special requirements. UG:108 vicorpower.com Applications Engineering: 800 927.9474 Page 1Standard Features n Input: 3 208/240 Vac Wye or Delta, 1 180-264 (47-500Hz) or 260352 Vdc n Power Output: 3 Phase MegaPAC: 2,000 W with 3 input 1,200 W with 1 input 4kW MegaPAC: 4,000 W with 3 input 1,500 W with 1 input n 10 slots (upto 20 outputs) n Fan cooled (4kW MegaPAC-EL has 2 fans) n Full power to 45C half power to 65C n Power Factor Correction - passive - to 0.92 PF (3 input) n Conducted EMI meets EN 55022 Level A n AC Power OK and AC Power Fail status signals n Output Sequencing and General Shutdown (Consult Applications Engineering for automatic sequencing circuitry.) n Auto Sense capability Refer to page 12 and page 16 for more information on Autosense n Overcurrent protection on all outputs n Overtemperature limiting (not applicable with VI-J00) n Overvoltage protection (not applicable with VI-J00 modules) n Size: 3 Phase MegaPAC - EL: 4.9 H x 7.5 W x 15.2 L (124,5mm x 190,5mm x 429,3mm) Extended chassis Size: 4kW MegaPAC - EL: 4.9 H x 7.5 W x 16.9 L (124,5mm x 190,5mm x 386,1mm) Extended chassis n Safety Agency Approvals: cURus, cTUVus, CE Mark Optional Features n DC OK status signal n Output voltage adjustment range with built-in potentiometer n Reversed fan airflow direction n Current Share Boards - see page 25 Mechanical Considerations The 3 Phase MegaPAC - EL and 4kW MegaPAC - EL can be mounted on any of four surfaces using standard 8-32 or 4mm screws. The chassis comes with four mounting points on each surface maximum allowable torque is 20 lb-in. The maximum penetration is 0.15 in. (3,8mm). When selecting a mounting location and orientation, the unit should be positioned so air flow is not restricted. Maintain a 2 minimum clearance at both ends of the 3 Phase MegaPAC - EL and 4kW MegaPAC - EL and route all cables so airflow is not obstructed. The standard unit draws air in at the fan side/AC input side and exhausts air out the load side. If airflow ducting is used, use caution, as sharp turns could present back pressure to the 3 Phase MegaPAC - EL and 4kW MegaPAC - EL. For the 4kW MegaPAC - EL, the fans move approximately 50 CFM of air while for the 3 Phase MegaPAC -EL, the fan moves approximately 30 CFM of air. The 4kW MegaPAC - EL has a second fan for additional cooling. Avoid excessive bending of output power cables after they are connected to the 3 Phase MegaPAC - EL or the 4kW MegaPAC - EL. For high-current outputs, use cable ties to support heavy cables in order to minimize mechanical stress on output studs. Be careful not to short-out to neighboring output studs. The 3 Phase MegaPAC - EL and UG:108 vicorpower.com Applications Engineering: 800 927.9474 Page 2