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Dual-Axis Servo Drive – Mitsubishi MDS-A-V2-3535
The MDS-A-V2-3535 is a dual-axis digital AC servo amplifier (“Dual-Axis AC Servo Amplifier”) manufactured by MITSUBISHI Electric, belonging to the MDS-A series (Mitsubishi Drive System – Series A). The designation 3535 denotes a rated output current of 35 A per axis (2 axes). The unit is designed for Mitsubishi CNC systems of the M64, M65, M700 series and compatibles, communicating with the CNC controller via the proprietary SSCNET serial bus (Serial Servo Communication Network). It integrates two independent servo drive channels in a single rack, reducing cabinet space compared to two separate modules. Feedback is provided by serial/absolute encoders from Mitsubishi HF, HC and HA series servo motors.
The MDS-A-V2-3535 servo drive is the power module that converts position and speed commands from the CNC into three-phase current for the machine axis servo motors, closing the position, speed and current loops in real time. It ensures the positioning accuracy and dynamic response essential during machining operations. A failure of this module disables both served axes, completely halting the machine and requiring urgent replacement or repair to restore production.
MITSUBISHI Electric is one of the world’s leading manufacturers of CNC systems, servo drives and motors for machine tools, with over 50 years of experience in industrial automation and motion control. The MDS-A series has been progressively superseded by the newer MDS-B, MDS-C, MDS-D and MDS-EJ series; the MDS-A-V2-3535 is therefore legacy / discontinued, available only as used, surplus or through specialist repair services.
Main Technical Specifications
| Type | Dual-axis digital AC servo amplifier |
| Part number | MDS-A-V2-3535 (MDSAV23535) |
| Brand | MITSUBISHI Electric |
| Known application | Mitsubishi CNC machining centres and lathes, M64, M65, M700 series and compatibles |
| Function | Dual-axis digital servo drive – position, speed and torque control |
| Rated current | 35 A continuous per axis (2 axes × 35 A) |
| Input supply | 3× 200–230 V AC, 50/60 Hz |
| CNC bus interface | SSCNET (Serial Servo Communication Network) – Mitsubishi proprietary serial bus |
| Feedback | Serial / absolute encoder from Mitsubishi HF, HC, HA series servo motors |
| Connectors | SSCNET connectors, motor power connectors, auxiliary signal terminal strip |
| Weight | ~8–12 kg |
| Dimensions | ~450 × 90 × 300 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |