MITSUBISHI Power Supply

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Power Supply Converter Module – MITSUBISHI MDS-C1-CV-150

The MDS-C1-CV-150 is a power supply converter module (“Power Supply Converter Unit”) manufactured by Mitsubishi Electric, belonging to the MDS-C1 servo drive family for MELDAS CNC systems (series M64, M65, M66). The module operates as an AC–DC rectifier/converter: it receives three-phase AC mains power and generates a shared DC bus voltage for the MDS-C1-V axis servo drives and MDS-C1-SP spindle drives connected in cascade on the same bus. It incorporates regenerative braking circuits to return energy to the supply during deceleration phases. The numeric suffix 150 denotes the nominal power class of the converter.

The power supply converter unit is the heart of the drive system power architecture: without it, no servo axis or spindle controlled by the MDS-C1 family can be energised. A converter failure causes the immediate and total shutdown of the machine tool: all axes and the spindle lose DC bus power and the CNC immediately raises a power supply alarm. Its functional integrity is therefore an absolute prerequisite for commissioning and normal machining operation.

Mitsubishi Electric is one of the world’s leading manufacturers of CNC systems, servo drives, and industrial automation components, present in the sector for over half a century through its MELDAS product line. The MDS-C1 series is a legacy / discontinued family: it has been progressively replaced by the MDS-D, MDS-EJ, and MDS-E series, which remain in active production and support.

Main Technical Specifications