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MITSUBISHI Servo Drive
Brand: MITSUBISHI -
Cat: Servo Drive
Code:MR-S2-40A-E01
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AC Servo Amplifier – MITSUBISHI MR-S2-40A-E01
The MR-S2-40A-E01 is an AC servo amplifier (“AC Servo Amplifier”) from the MR-S2 series manufactured by Mitsubishi Electric, belonging to the MELSERVO family. It is designed for three-phase AC servo motor control in CNC machine tool applications and is documented as a component of Mitsubishi MELDAS CNC systems. The 40A designation indicates a continuous output current rating of 40 A; the E01 suffix identifies a specific product variant or revision. The unit manages the current and speed regulation loops of the servo motor, receiving reference commands from the CNC controller via serial bus or digital interface.
The servo amplifier is the core of the motion control system: it converts position and speed commands from the CNC into controlled three-phase currents that drive the servo motor with precision. Without it, the machine axes cannot move in a controlled manner; any fault causes an immediate machining stop, with consequent risk of damage to the workpiece and tooling.
Mitsubishi Electric is one of the world’s leading manufacturers of industrial automation systems, motion control, and CNC technology, with over a century of history in the sector. The MR-S2 series belongs to the generation of servo drives developed in the 1990s for MELDAS systems; these products are currently legacy / discontinued and available exclusively as used, surplus or through specialist repair services.
Main Technical Specifications
| Type | Three-phase AC servo amplifier (AC Servo Drive) |
| Part number | MR-S2-40A-E01 (MRS240AE01) |
| Brand | Mitsubishi Electric – MELSERVO family |
| Known application | CNC machine tools with Mitsubishi MELDAS control system |
| Function | AC servo motor speed and torque control – current and speed regulation loops |
| Supply voltage | 200–230 V AC three-phase (typical MR-S2 series) |
| Rated output current | 40 A (continuous) |
| Rated power | ~5–11 kW |
| Feedback | Encoder / resolver from AC servo motor (MELSERVO serial interface) |
| Interfaces | MELDAS bus / CN1, CN2, CN3 connectors; digital I/O for axis control signals |
| Variant | Suffix E01 – specific product variant / revision |
| Weight | ~3–6 kg |
| Dimensions | ~150–260 mm × 100–180 mm × 150–250 mm H × W × D |
| Production status | Legacy / discontinued — used/surplus/repair only |
