USER GUIDE UG:110 Mini MegaPAC AC-DC Switcher Contents Page Overview 1 Standard Features 2 Optional Features 2 Mechanical Considerations 2 MegaPAC Dos and Donts 3 Technical Description 3 Configuring and Reconfiguring MegaPACs 5 ConverterPAC Functional Description 6 Part Numbering 8 Overview ConverterPAC Output and The Mini MegaPAC AC-DC switcher allows users to instantly configure high-efficiency, off-line power Connector Pin Identification supplies that operate on either 115 or 230V (47 500Hz) or 260 380V . Although small in size AC DC for the Mini MegaPAC 9 (3.4 x 6.0 x 9.5in 85,8 x 153,4 x 241,3mm ), the Mini MegaPAC provides up to 1,000W of output power. The chassis has five slots and can provide up to ten isolated outputs. Mini MegaPAC Quick Install Instructions 10 A complete power supply is configured at the factory by selecting and inserting up to five same-length, slide-in output assemblies called ConverterPACs. ConverterPACs incorporate one or two PFC MegaPAC Mechanical Drawing 13 VI-200 / VI-J00 and/or Maxi Vicor DC-DC converters and are available in a wide array of output voltages and power levels. The net result is a power supply that offers the advantages of a custom Interface Connections 14 supply but is assembled from standard and modular building blocks. For detailed information about the ConverterPACs, refer to the ConverterPAC data sheets. The ConverterPACs used in the Mini MegaPAC Specifications 20 use VE-2xx and VE-Jxx modules. New Output Studs 21 Manufactured at Vicor, the entire family of MegaPAC power supplies is completely user-configurable. MegaPAC Family Connector Kit If output requirements change, i.e., more power or a different output voltage is needed, upgrading (43075) Listing 21 is easy: simply unlock a single screw and replace the slide-in ConverterPAC assembly with one of the same length and has the desired voltage power rating. For additional flexibility, ConverterPACs can Current Share Boards - be connected in parallel to increase output power (booster ConverterPACs), or in series for higher Optional Feature 22 voltages (total output voltage should not exceed 400V). The driver is to the left of the boosters Current Share Boards - when looking at the output end of the supply. A user-friendly interface provides control and output Optional Feature Diagram 24 sequencing capability, in addition to useful status indicators. Please consult our Applications Engineering Department if you have other special requirements. Low-Leakage Version 25 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:110 Page 1Standard Features nnInput voltage: 90 132V or 180 264V , 47 500Hz, or 260 380V AC AC DC nnOutput power: 1,000W 115V or 230V AC AC nnOutputs: five slots (up to ten outputs) nnFull-power output to 45C half power to 65C nnFan cooled nnConducted EMI meets EN55022 Class A and B nnAC Power OK status signal nnRoHS compliant available nnOutput Sequencing and General Shut Down (Consult Applications Engineering for automatic sequencing circuitry) nnAutosense (refer to pages 11 and 14 for more information on Autosense) nnOvercurrent protection standard on all outputs nnOutput overvoltage protection on all ConverterPAC outputs with VI-200 module nnOutput overtemperature limiting on all ConverterPAC outputs with VI-200 module nnSize: 3.4 x 6.0 x 9.5in 85,8 x 153,4 x 241,3mm nnSafety Agency Approvals: CE Mark, cTVus Optional Features nnDC OK status signal nnReversed fan air-flow direction nnExtended temperature range DC-DC converters nnCurrent share boards (see pages 22 24) nnLow-leakage version (see page 25) Mechanical Considerations The Mini MegaPAC 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 20lb in. The maximum penetration is 0.15in 3,8mm . When selecting a mounting location and orientation, the unit should be positioned so air flow is not restricted. Maintain a 2in 5,1cm minimum clearance at both ends of the Mini MegaPAC and route all cables so air flow is not obstructed. The standard unit draws air in at the fan side and exhausts air out the load side. If air-flow ducting is used, avoid sharp turns that could create back pressure. The fan moves approximately 30CFM of air. Avoid excessive bending of output power cables after they are connected to the Mini MegaPAC. For high-current outputs, use cable-ties to support heavy cables and minimize mechanical stress on output studs. Be careful not to short-out to neighboring output studs. The Mini MegaPAC is supplied with serrated, flanged hex-nuts on all output studs. Therefore, thread-locking compounds or lock washers . are not required. The maximum torque recommended on flanged nuts is 45lb in. Never loosen the inner nut on a ConverterPAC. This nut supports the hardware inside the ConverterPAC and is factory torqued. Avoid applications in which the unit is exposed to excessive shock or vibration levels. In such applications, a shock-absorption mounting design is required. UG:110 Page 2