{"product_id":"siemens-6se7031-7hg84-1ja1-simovert-power-supply-module","title":"Siemens 6SE7031-7HG84-1JA1 SIMOVERT Power Supply Module","description":"\u003cp\u003eThe Siemens 6SE7031-7HG84-1JA1 is a dedicated PSU1 Power Supply Module engineered for the legacy SIMOVERT MASTERDRIVES variable frequency drive (VFD) and inverter product families. This module functions at the hardware tier to support larger chassis configurations (Designs E through H). It accepts a wide range of three-phase AC input voltages or direct DC bus potentials, converting raw input power into stable, regulated low-voltage internal DC rails to feed the drive's primary control boards, firing circuits, and auxiliary logic systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e6SE7031-7HG84-1JA1 (6SE70317HG841JA1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Series\u003c\/td\u003e\n\u003ctd\u003eSIMOVERT MASTERDRIVES (Chassis Designs E, F, G, H)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Typology\u003c\/td\u003e\n\u003ctd\u003eInternal Power Supply Module (PSU1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e1.81 lbs (0.82 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Phase Configuration\u003c\/td\u003e\n\u003ctd\u003e3-Phase AC or Direct DC Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC Voltage Input Range\u003c\/td\u003e\n\u003ctd\u003e380-460 VAC \/ 660-690 VAC (at 50\/60 Hz nominal frequency)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Voltage Input Range\u003c\/td\u003e\n\u003ctd\u003e510-620 VDC \/ 890-930 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eInternal logic and control voltage regulation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Lifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDrive Power Supplies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIndustrial Control \u0026amp; Drive Communications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Source Input Adaptation and Internal Power Routing\u003c\/strong\u003e The PSU1 module features an adaptable internal transformer and rectification matrix that operates parallel to the drive's main power cycles. It can draw power directly from the 3-phase AC mains or tap into the high-voltage DC bus ($DC+$ and $DC-$ links). This dual-input capability ensures that internal control microprocessors and communication interface options remain powered up and ready to report diagnostics even during an AC line drop or primary mains brownout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Matching and System Logic Protection\u003c\/strong\u003e Built specifically for the physical and electrical configurations of large MASTERDRIVES frames (Sizes E through H), this 1.81 lbs module provides galvanic isolation between the high-potential supply inputs and the low-voltage internal backplane. It protects the drive's central memory registers, processor chips, and communication modules from line-side voltage transients, tracking ripples, and common-mode electrical noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What programmatic or operational errors manifest on the MASTERDRIVES operator panel if the PSU1 module fails completely?\u003c\/p\u003e\n\u003cp\u003eA: A total failure of the PSU1 module cuts internal control power to the drive's processing core. The PMU (Parameterization Unit) display window will blank out entirely, all external fieldbus communication channels will time out, and the host PLC or automation network will log an immediate communication loss or device node failure.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 6SE7031-7HG84-1JA1 module be hot-swapped while the primary drive system is energized?\u003c\/p\u003e\n\u003cp\u003eA: No, unseating or installing this internal power supply card while the primary AC mains line is connected or while the VFD's high-voltage DC bus capacitors remain charged is strictly prohibited. Attempting an energized replacement risks severe inductive electrical arcing, board-level short circuits, and permanent destruction of the drive's main control interface electronics.\u003c\/p\u003e","brand":"SIEMENS","offers":[{"title":"Default Title","offer_id":45121625194611,"sku":"6SE7031-7HG84-1JA1","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-06-22_16-29-20_3fd178f5-a00e-4454-8c3b-283db540d11b.png?v=1782119086","url":"https:\/\/www.dcssupplier.com\/products\/siemens-6se7031-7hg84-1ja1-simovert-power-supply-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}