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MITSUBISHI Power Supply
Brand: MITSUBISHI -
Cat: Power Supply
Code:MDS-C1-CV-260
| Combination name | Availability | Price |
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DC Bus Converter Unit – Mitsubishi MDS-C1-CV-260
The MDS-C1-CV-260 is a DC bus converter unit (“DC Bus Converter Unit”) from the MDS-C1 series, manufactured by Mitsubishi Electric. It is part of the MELSERVO MDS-C1 drive system, designed for Mitsubishi CNC controllers of the M640, M64 and compatible series, used on machining centres, lathes and CNC milling machines. The unit converts three-phase AC mains voltage into a stabilised DC bus voltage, which in turn powers the servo (SV) and spindle (SP) amplifier units connected in parallel on the same internal bus. The suffix 260 denotes the nominal capacity; other ratings are available within the MDS-C1-CV family.
The MDS-C1-CV-260 converter is the heart of the drive system power plant: without it, neither the servo axes nor the spindle can receive power, leaving the machine completely inoperable. In addition to supplying the DC bus to the connected amplifiers, the unit manages regenerative braking, returning to the mains the kinetic energy generated by the axes during deceleration and reducing overall energy consumption. A fault in the CV unit immediately triggers a DC bus alarm and a total loss of motion across all machine axes.
Mitsubishi Electric is one of the world’s leading manufacturers of CNC systems, drives and industrial automation, active in the machine tool sector with the MELDAS / MELDASMAGIC line and the MDS drives. The MDS-C1 series has been superseded by the MDS-D2 and MDS-EJ / EX families; all C1 series products are therefore legacy / discontinued and available exclusively as used, surplus or through specialist repair services.
Main Technical Specifications
| Type | DC bus converter unit (DC Bus Converter Unit) |
| Part number | MDS-C1-CV-260 (MDSC1CV260) |
| Brand | Mitsubishi Electric |
| Series | MDS-C1 (Motor Drive System C1) |
| Known application | Mitsubishi CNC M640, M64, M6x controllers; machining centres, lathes and CNC milling machines |
| Function | Three-phase AC → DC bus conversion; power supply to SV and SP amplifier units; regenerative braking |
| Input voltage | 3~ 200 V AC ±10 % – 50/60 Hz (typical 200 V series) |
| DC bus output voltage | ~280 V DC (typical, 200 V series) |
| Nominal capacity | 260 A (DC bus peak current – see Mitsubishi technical documentation) |
| Interfaces / connectors | Three-phase mains terminal strip (R/S/T); DC bus to SV/SP amplifiers; CN connectors for control signals and communication |
| Weight | ~5–15 kg |
| Dimensions | ~300–450 × 150–250 × 200–300 mm |
| Production status | Legacy / discontinued — used / surplus / repair only |
