{"product_id":"mitsubishi-electric-mds-dh-cv-370-mds-dh-series-power-supply-unit","title":"Mitsubishi Electric MDS-DH-CV-370 MDS-DH Series Power Supply Unit","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003ePower distribution within demanding multi-axis CNC machine tools is managed directly by the \u003cstrong\u003eMitsubishi Electric MDS-DH-CV-370\u003c\/strong\u003e, a high-capacity MDS-DH Series Power Supply Unit. Engineered for the \u003cstrong\u003e400V AC class\u003c\/strong\u003e architecture, this converter unit rectifies incoming 3-phase utility power into a stable DC bus voltage to feed coordinate servo drives and high-speed spindle amplifiers. With a robust \u003cstrong\u003e30.0kW continuous rated output\u003c\/strong\u003e and a \u003cstrong\u003e37.0kW 30-minute transient peak capacity\u003c\/strong\u003e, it ensures reliable energy delivery under severe dynamic loading and rapid deceleration cycles.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eOptimized for 400V high-voltage drive topologies, minimizing line current and wiring cross-sections.\u003c\/li\u003e\n  \u003cli\u003eDual-rated power output structure supporting 30kW continuous operation and 37kW short-term overload demands.\u003c\/li\u003e\n  \u003cli\u003eSlim 150mm physical width profile to optimize control cabinet spatial density.\u003c\/li\u003e\n  \u003cli\u003eRegenerative power capabilities designed to feed braking energy back into the power system when used with specified line components.\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct coordination with dedicated AC reactors and magnetic contactors to suppress harmonic distortion and manage inrush currents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eHeavy-duty CNC milling and turning centers requiring synchronized multi-axis servo coordination.\u003c\/li\u003e\n  \u003cli\u003eHigh-speed industrial spindle drive systems with regenerative braking needs.\u003c\/li\u003e\n  \u003cli\u003eAutomated automotive powertrain manufacturing cells and metal fabrication equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eMitsubishi Electric\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eMDS-DH-CV-370\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eSeries\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eMDS-DH Series\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eInput Voltage Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e400V Class\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eContinuous Rated Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e30.0 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003e30-Minute Rated Output\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e37.0 kW\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003ePower Facility Capacity\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e53 kVA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eUnit Width\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e150 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCompatible AC Reactor\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eDH-AL-37K\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCompatible Contactor\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eS-T65-AC400V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCompatible Circuit Protector\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e32 K\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e10.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eShipping Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e12.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold; text-align: left;\"\u003eTerminal \/ Connector\u003c\/th\u003e\n        \u003cth style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold; text-align: left;\"\u003eFunction \/ Circuit Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eL1, L2, L3\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003e3-Phase 400V AC Input Terminals (via AC Reactor \u0026amp; Magnetic Contactor)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eL+, L-\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eHigh-Voltage DC Bus Output to Drive Modules\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCN1A \/ CN1B\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eSystem Communication Bus Links (Daisy-chain to CNC \/ Drives)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0; font-weight: bold;\"\u003ePE (Ground)\u003c\/td\u003e\n        \u003ctd style=\"padding: 8px; border: 1px solid #e2e8f0;\"\u003eProtective Earth Ground Connection\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe MDS-DH-CV-370 is designed exclusively for 400V class MDS-DH systems and cannot be interchanged with 200V class MDS-D-CV systems. It requires compatible firmware integration matching the connected host CNC system (such as M700\/M800 or M70\/M80 controllers). When replacing older revisions, verify the total drive load matching parameters to ensure the sum of the connected servo and spindle ratings does not exceed the 53 kVA system capacity.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eUnder heavy deceleration cycles of high-inertia spindle motors, the system relies on line regeneration to dissipate energy back into the network. This process absolutely requires the installation of the matching DH-AL-37K AC reactor. Omitting this reactor or substituting a generic alternative will lead to severe overvoltage (F1 ALM) errors, degradation of internal capacitor banks, and potential thermal breakdown of the input rectifying diodes.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eEnsure that control power cable routing is physically isolated from the high-voltage DC bus (L+\/L-) and AC input lines to minimize EMI noise. Connect the daisy-chained CNC communication bus using high-performance shielded cables, ensuring proper termination at both ends. Verify that the MC (Magnetic Contactor) feedback circuit is properly integrated into the emergency stop loop to safely interrupt AC supply power in the event of an internal system fault.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Hazardous voltages remain present on the high-voltage DC bus (L+\/L-) and internal capacitor banks for up to 15 minutes after main AC power is disconnected. Prior to performing any wiring, inspection, or maintenance work, de-energize all power sources, wait for the physical charge LED indicator on the unit front panel to turn completely off, and verify using a calibrated voltmeter that the DC bus voltage has dropped below 50V DC.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eMount the MDS-DH-CV-370 vertically on a flat, vibration-free back panel, ensuring standard ventilation clearance rules are met on all sides.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eEstablish solid Protective Earth (PE) grounding directly from the module chassis to the central system ground bar.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eConnect the 3-phase 400V AC power lines through the recommended DH-AL-37K AC reactor and S-T65-AC400V magnetic contactor.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eRoute the high-voltage DC bus links (L+ and L-) securely to adjacent servo\/spindle drive modules using the original short-bar bus bridges.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem;\"\u003e5\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eInterface the CNC communication bus cables (CN1A\/CN1B) and check terminal terminations before executing the primary system power-on sequence.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102131052907,"sku":"MDS-DH-CV-370","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/mds-dh-cv-370-gebtzos3rtx.png?v=1776137810","url":"https:\/\/www.plcprotech.com\/pt\/products\/mitsubishi-electric-mds-dh-cv-370-mds-dh-series-power-supply-unit","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}