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MITSUBISHI Servo Drive
Brand: MITSUBISHI -
Cat: Servo Drive
Code:MR-S11-103-E01
| Combination name | Availability | Price |
|---|---|---|
MELSERVO Servo Amplifier – Mitsubishi MR-S11-103-E01
The MR-S11-103-E01 is a compact digital servo amplifier (“Compact Servo Amplifier”) manufactured by Mitsubishi Electric, belonging to the MELSERVO MR-S11 series. Designed for speed and torque control of AC brushless servo motors (HA-SE series and compatible), it is typically used in CNC machine tools equipped with Mitsubishi Electric MELDAS control systems. The suffix E01 identifies the European supply variant (200–230 V AC) at hardware revision 01; the internal stock code is MRS11103E01. The number 103 denotes the power class of the unit.
The servo amplifier closes the speed and current loops on the axis motor: it receives the reference from the CNC controller (±10 V analogue signal or pulse train) and maintains stable, precise rotation by adapting in real time to load variations. If it fails, the controlled axis becomes completely inoperative, causing an immediate machine stop and the inability to perform any CNC machining operation.
Mitsubishi Electric is one of the world’s leading manufacturers of motion control, CNC and industrial automation systems, with the MELSERVO line active since the late 1980s and continuously updated through to the current MR-J5 series. All products in the MR-S11 series are now legacy / discontinued: available only as used parts, NOS surplus, or through specialist repair centres.
Main Technical Specifications
| Type | Compact digital servo amplifier (Compact Servo Amplifier) |
| Part number | MR-S11-103-E01 (MRS11103E01) |
| Brand | Mitsubishi Electric – MELSERVO MR-S11 series |
| Known application | CNC machine tools with MELDAS systems (Mitsubishi Electric); HA-SE brushless motors and compatible |
| Function | Speed and current regulation for AC brushless servo motor |
| Supply voltage | 200–230 V AC, single/three-phase – European variant (E01) |
| Power / Current | ~100 W nominal; peak current ~3 A |
| Reference input | Analogue ±10 V or pulse train from CNC |
| Feedback | Incremental encoder from servo motor |
| Interfaces | CN1 (analogue reference / digital I/O), CN2 (encoder), power terminal strip; RS-422 communication (typical) |
| Weight | ~0.5–1.2 kg |
| Dimensions | ~60–80 × 150–180 × 130–160 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
