USER GUIDE UG:119 TM PFC MegaPAC-EL TM PFC MegaPAC-HPEL Power Factor Corrected AC-DC Switchers Contents Page Overview 1 Standard Features 2 Optional Features 2 Mechanical Considerations 3 MegaPAC Dos and Donts 3 Technical Description 4 Configuring and Reconfiguring MegaPACs 5 ConverterPAC Functional Description 7 Part Numbering 8 Overview ConverterPAC Output and Connector Pin Identification 10 The PFC MegaPAC-EL and PFC MegaPAC High Power Low Noise (HPEL) combine power factor PFC MegaPAC-EL and -HPEL correction (PFC) with the configurability of the MegaPAC family of power supplies. The Quick Install Instructions 11 PFC MegaPAC-EL and PFC MegaPAC-HPEL provide up to 1,600W and 2,400W of output power 3 3 respectively and have power densities of 4.3W/in and 6.5W/in respectively. The chassis has eight slots PFC MegaPAC-EL and PFC and can provide as many as 16 outputs. The PFC MegaPAC-EL and PFC MegaPAC-HPEL have the same MegaPAC-HPEL input and output connections, mounting points and the same dimensions: 3.4 x 6.0 x 15.6in Mechanical Drawing 14 85,6 x 152,4 x 396,2mm . Note that length of older units were 15.5in 393,6mm . Interface Connections 15 A complete power supply is configured at the factory by selecting and inserting up to eight (four six Specifications 22 for the PFC MegaPAC-HPEL depending on ConverterPACs used) same length slide-in output assemblies called ConverterPACs. ConverterPACs incorporate one or two VI-200 / VI-J00 and / or Maxi Vicor Output Studs 23 DC-DC converters and are available in 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 Output Power Derating 24 and modular building blocks. PFC MegaPAC-EL/HPEL Manufactured at Vicor, the entire family of MegaPAC power supplies is completely user-configurable. Connector Kit (19-130040) If output requirements change, i.e., more power or a different output voltage is needed, upgrading Listing 24 is easy: simply unlock a single screw and replace the slide-in ConverterPAC assembly with one that is Connector Kit for of the same length and has the desired voltage power rating. For additional flexibility, ConverterPACs Dual Outputs only - can be connected in parallel to increase output power (booster ConverterPACs), or in series for MegaPAC Family 19-130042 24 higher voltages (total output voltage should not exceed 400V). 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 Current Share Boards - output sequencing capability (see Page 16 for more information about this capability), in addition to Optional Feature 25 useful status indicators. Please consult our Applications Engineering Department if you have other Current Share Boards - special requirements. Optional Feature Diagram 27 Output Sequencing 28 Note: This user guide contains references to parts and products that are no longer available for new designs. They remain included for reference only. UG:119 Page 1Standard Features n Power Factor Correction 0.99 at 115V , 0.95 at 230V AC AC n Universal Input: 85 264V , 47 500Hz, or 100 380V AC DC n Power Outputs: PFC MegaPAC-EL: 1,600W at 230V PFC MegaPAC-HPEL: 2,400W at 230V AC AC 1,200W at 115V 1,200W at 115V AC AC n Outputs: PFC MegaPAC-EL and HPEL: Up to 16 outputs n Output ripple: 10mV or 0.15% whichever is greater P-P n Fan Cooled n Full-power to 40C half power to 60C n Soft start for limiting inrush current n Conducted EMI meets FCC Class A and EN55022 A specifications (some configurations meet Class B. Contact factory) n Harmonic Distortion to EN61000-3-2 n RoHS compliant available n Output Sequencing and General Shutdown (General Shutdown refer to Page 17. Output sequencing refer to Page 28. Consult Applications Engineering for automatic sequencing circuitry.) n Overcurrent protection on all outputs n Overvoltage protection on all ConverterPAC outputs (not applicable with VI-J00 modules) n Overtemperature limiting on all ConverterPAC outputs (not applicable with VI-J00 modules) n Size: 3.4 x 6.0 x 15.6in 85,6 x 152,4 x 396,2mm n Safety Agency Approvals: CE Mark, cTVus, UL Optional Features n DC OK status signal n Current Share Boards - see Pages 25 27 n Output voltage adjustment range with built-in potentiometer UG:119 Page 2