{"product_id":"6se7028-6ec85-0aa0-siemens-simovert-master-drives-infeed-unit-module","title":"6SE7028-6EC85-0AA0 Siemens SIMOVERT Master Drives Infeed Unit Module","description":"\u003ch3\u003ePower Infeed Architecture \u0026amp; Overview\u003c\/h3\u003e\n\u003cp\u003eThe Siemens \u003cb\u003e6SE7028-6EC85-0AA0\u003c\/b\u003e is a high-capacity power infeed unit engineered explicitly for the modular \u003cb\u003eSIMOVERT MASTERDRIVES\u003c\/b\u003e multi-axis drive lineup. Operating as a robust front-end rectifier module, it accepts a three-phase utility supply ranging from 380V to 480V AC (50\/60 Hz) at a 74A input rating, converting it into a stabilized DC bus voltage of 510V to 620V DC capable of delivering up to 86A of continuous output current.\u003c\/p\u003e\n\u003cp\u003eElectrical engineers deploy the \u003cb\u003e6SE7028-6EC85-0AA0\u003c\/b\u003e in heavy industrial common-bus architectures where continuous energy flow and regenerative stability are vital. Weighing 9.21 kg (net module weight approx. 20.31 lbs \/ shipping weight up to 20.3 kg), its robust IP20 enclosed chassis ensures reliable protection against accidental contact and dust ingress inside high-voltage electrical enclosures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBrand Manufacturer:\u003c\/b\u003e Siemens\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProduct Line:\u003c\/b\u003e \u003cb\u003eSIMOVERT MASTERDRIVES\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number \/ Model:\u003c\/b\u003e \u003cb\u003e6SE7028-6EC85-0AA0\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eUPC Identification:\u003c\/b\u003e 662643430066\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComponent Type:\u003c\/b\u003e Three-Phase Rectifier Infeed Unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInput Power Range:\u003c\/b\u003e 380V to 480V AC, 3-Phase, 50 Hz \/ 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eContinuous Input Current:\u003c\/b\u003e 74 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDC Bus Output Voltage:\u003c\/b\u003e 510V to 620V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eContinuous Output Current:\u003c\/b\u003e 86 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnclosure Protection Class:\u003c\/b\u003e IP20 rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Ambient Temperature:\u003c\/b\u003e 0°C to +40°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStorage Temperature Range:\u003c\/b\u003e -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRelative Humidity Tolerance:\u003c\/b\u003e 5% to 95% RH (non-condensing operation and storage)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating Environment:\u003c\/b\u003e Clean indoor environments completely free from corrosive gases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB's Insight\u003c\/h3\u003e\n\u003cp\u003eAccording to Global PLC Spare HUB's Insight, maintaining a stable DC bus via reliable front-end units like the \u003cb\u003e6SE7028-6EC85-0AA0\u003c\/b\u003e prevents cascading overvoltage or undervoltage trips across linked inverter sections. Field technicians note that pre-charging circuit checks are critical during routine maintenance; verifying the pre-charge contactors and resistors on the infeed module prevents high inrush currents from damaging sensitive DC-link electrolytic capacitors during cold startups.\u003c\/p\u003e\n\u003ch3\u003eTarget Industrial Equipment \u0026amp; Application Scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMulti-Axis Converters:\u003c\/b\u003e Serves as the primary DC bus power supply for complex multi-motor manufacturing lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh-Speed Printing Presses:\u003c\/b\u003e Supplies stable DC bus voltage to synchronized servo and vector drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLarge Material Handling Cranes:\u003c\/b\u003e Manages steady power rectification for heavy hoisting and trolley travel drives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIndustrial Extrusion Systems:\u003c\/b\u003e Powers continuous-duty compounding lines requiring high dynamic stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMetal Processing Lathes:\u003c\/b\u003e Regulates main spindle and feed axis power supply buses under heavy cyclic loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostic Capabilities \u0026amp; Fault Monitoring\u003c\/h3\u003e\n\u003cp\u003eThe \u003cb\u003e6SE7028-6EC85-0AA0\u003c\/b\u003e coordinates with the central Master Drives control rack to monitor grid stability and internal power stage parameters:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eF006 \/ F008 (DC Link Overvoltage \/ Undervoltage):\u003c\/b\u003e Detects abnormal fluctuations on the 510V–620V DC bus rails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eF011 (Phase Loss \/ Asymmetry):\u003c\/b\u003e Identifies missing input phases or severe voltage imbalances on the 380V–480V AC utility supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOvertemperature Trips:\u003c\/b\u003e Monitors internal heatsink thermal thresholds to prevent semiconductor breakdown.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePre-charge Circuit Faults:\u003c\/b\u003e Flags failures in the DC bus pre-charging sequence before main line contactors close.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExpress Logistics \u0026amp; 12-Month Warranty Coverage\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWarranty Terms:\u003c\/b\u003e Backed by a comprehensive 12-month replacement warranty covering material defects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDispatch Lead Time:\u003c\/b\u003e Express order processing and fulfillment within 24 to 48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eGlobal Shipping Network:\u003c\/b\u003e Secure worldwide transport handled via FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProfessional Frequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ1: Can the 6SE7028-6EC85-0AA0 infeed unit be used in applications with fluctuating 220V power supplies?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA1: No, this unit requires a three-phase input of 380V to 480V AC. Operating it on a 220V grid will cause severe DC bus undervoltage faults and prevent the drive group from starting.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ2: What is the primary function of an infeed unit compared to a standard inverter drive?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA2: The \u003cb\u003e6SE7028-6EC85-0AA0\u003c\/b\u003e acts as a front-end rectifier, converting incoming AC line power into a shared DC bus voltage (510V–620V DC) that powers multiple inverter motor control modules in a common-bus setup.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ3: How do I handle storage and humidity protection if the unit is kept as a spare part?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA3: Store the unit within its specified -25°C to +60°C temperature range in a dry environment where relative humidity remains strictly between 5% and 95% non-condensing, free from corrosive vapors.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ4: What routine maintenance checks prevent unexpected pre-charge failures on this unit?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA4: Inspect internal pre-charge resistors and contactor contacts annually for signs of thermal wear or arcing to ensure smooth DC bus energization during startup.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ5: What purchasing advice applies when replacing legacy SIMOVERT MASTERDRIVES infeed modules?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA5: Always cross-reference the exact part number index and current rating (74A input \/ 86A output) to match your system's total connected motor load capacity accurately.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":67613502963894,"sku":"6SE7028-6EC85-0AA0","price":215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/6SE7028-6EC85-0AA0-1.jpg?v=1791613784","url":"https:\/\/www.plcsparehub.com\/products\/6se7028-6ec85-0aa0-siemens-simovert-master-drives-infeed-unit-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}