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MITSUBISHI Servo Drive
Brand: MITSUBISHI -
Cat: Servo Drive
Code:MDS-C1-V1-90
| Combination name | Availability | Price |
|---|---|---|
Single-Axis Servo Drive – MITSUBISHI MDS-C1-V1-90
The MDS-C1-V1-90 is a single-axis servo amplifier (“Single Axis Servo Amplifier”) from the MDS-C1 series by Mitsubishi Electric, a core component of the axis drive architecture for Mitsubishi M64, M65, and M66 CNC systems. The suffix V1 identifies the single-axis variant, while the value 90 denotes the rated output current (90 A), intended to drive medium-to-high-power servo motors. The unit operates together with the MDS-C1-CV bus power supply and interfaces directly with the CNC control CPU via a dedicated serial bus (SHJ / SSCNET). No publicly documented revision variants are known, though units with updated firmware may exist.
The servo drive is the module that receives position and speed references from the CNC CPU and closes the regulation loop on the axis servo motor: it continuously compares the encoder-detected position with the target, supplying the current required to track the commanded trajectory and torque. A drive failure completely disables the associated axis, bringing the machine to a standstill; at startup it typically triggers position alarms, trajectory deviations, or emergency stops.
Mitsubishi Electric is one of Japan’s largest industrial automation groups, headquartered in Tokyo; its Mitsubishi CNC division has designed numerical control systems and drives since the 1970s. The MDS-C1 series dates from the late 1990s and is now legacy / discontinued: available exclusively as used/surplus or through specialist repair services.
Main Technical Specifications
| Type | Single-axis servo amplifier (Single Axis Servo Amplifier) |
| Part number | MDS-C1-V1-90 (MDSC1V190) |
| Brand | Mitsubishi Electric |
| Known application | Mitsubishi CNC systems M64, M65, M66; machining centres and lathes with MDS-C1 architecture |
| Function | Closed-loop position, speed and current regulation for one servo axis |
| Rated output current | 90 A |
| DC bus voltage | ~300–400 V DC |
| Logic supply | 24 V DC (from system power supply) |
| CNC interface | SHJ / SSCNET serial bus (Servo System Controller NETwork) |
| Encoder feedback | Motor encoder connector (compatible with Mitsubishi serial encoder) |
| Main connectors | Terminal strip and edge connectors for DC bus, control signals and encoder feedback |
| Weight | ~3.5–5.5 kg |
| Dimensions | ~80–110 × 280–370 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
