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MITSUBISHI Power Supply
Brand: MITSUBISHI -
Code:MDS-C1-CV-300
| Combination name | Availability | Price |
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Regenerative Converter Unit – MITSUBISHI MDS-C1-CV-300
The MDS-C1-CV-300 is a regenerative converter unit (“Regenerative Converter Unit”) manufactured by Mitsubishi Electric, belonging to the MDS-C1 servo and spindle drive series. It converts three-phase mains voltage into a regulated DC bus voltage, supplying the servo amplifier and spindle drive modules connected to the same bus. The CV-300 suffix denotes the power class of the unit (approximately 30 kW). It is documented as a component of machining centres, lathes, and multi-axis CNC machines equipped with Mitsubishi MELDAS M64 / M640 CNC controllers. The main stock part number is MDSC1CV300.
The CV converter unit is the power backbone of the entire MDS-C1 drive system: it supplies the DC bus voltage to all connected servo and spindle modules, and manages regenerative energy recovery during motor deceleration phases, feeding the energy back into the bus rather than dissipating it as heat. A failure of this module renders the entire drive chain inoperative, simultaneously blocking all machine axes and the spindle.
Mitsubishi Electric is one of the world’s leading manufacturers of CNC systems, servo motors, inverters, and industrial automation equipment, with over a century of history in the electrotechnical sector. The MDS-C1 series is a legacy / discontinued product line, now superseded by the more recent MDS-D, MDS-E, and MDS-EJ series: availability is limited to the used, surplus, and specialist repair market.
Main Technical Specifications
| Type | Regenerative converter unit (Regenerative Converter Unit) |
| Part number | MDS-C1-CV-300 (MDSC1CV300) |
| Brand | Mitsubishi Electric |
| Known application | Machining centres and CNC lathes with Mitsubishi MELDAS M64 / M640 controller |
| Function | AC→DC bus conversion; power supply for servo and spindle modules; regenerative energy recovery |
| Input voltage | 3× 200–230 V AC, 50/60 Hz (200 V class) |
| DC bus voltage | ~280–330 V DC |
| Rated power | ~30 kW (CV-300 class) |
| Interfaces/connectors | DC bus to servo/spindle modules; CN control connectors; AC mains terminal strip |
| Weight | ~8–15 kg |
| Dimensions | ~250×350×180 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
