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OKUMA Servo Drive
Brand: OKUMA -
Code:MIV08-3-V1
| Combination name | Availability | Price |
|---|---|---|
Drive Inverter Module – OKUMA MIV08-3-V1
The MIV08-3-V1 is an electronic drive inverter module (“Drive Inverter Module”) manufactured by OKUMA, documented as a component of the servo and spindle drive systems for OKUMA CNC machine tools equipped with OSP (Open System Platform) controllers. The module performs DC-to-AC power conversion and current/speed regulation for servo axes or spindle motors, operating within OKUMA’s integrated proprietary drive architecture. The MIV designation identifies inverter modules within the OKUMA drive family; the suffix 08 denotes the current/power size variant, 3 the sub-variant, and V1 the hardware revision.
The MIV08-3-V1 inverter module is the core power electronics component that converts DC bus voltage into variable-frequency, variable-voltage AC power for the connected servo or spindle motor, closing the current and speed loops under command from the OSP controller. In the event of failure, the axis or spindle managed by this module becomes completely inoperative and the machine cannot carry out any machining operations; the proprietary and integrated nature of the OKUMA system makes this component critical and non-interchangeable with generic equivalents.
OKUMA Corporation, founded in Nagoya (Japan) in 1898, is one of the world’s leading manufacturers of CNC machine tools and integrated control systems. The company develops its own controllers (OSP), drives, and motors as a closed proprietary system, making spare parts in this series exclusive and non-interchangeable with other brands. Modules in the earlier-generation MIV family are legacy / discontinued: available only as used, surplus, or through specialist repair services.
Main Technical Specifications
| Type | Servo/spindle drive inverter module (Drive Inverter Module) |
| Part number | MIV08-3-V1 (MIV083V1) |
| Brand | OKUMA Corporation (Nagoya, Japan) |
| Known application | OKUMA CNC machine tools with OSP controller (lathes, machining centres, grinders) |
| Function | DC/AC conversion and current/speed regulation for servo or spindle motor |
| DC bus voltage | ~280–560 V DC |
| Rated current | ~8 A |
| Interfaces / connectors | OKUMA proprietary connectors; DC bus, three-phase motor output, OSP control signals |
| Feedback | OKUMA encoder/resolver (OSE/BEI) or tachogenerator signal from motor |
| Hardware revision | V1 (Rev. 1) |
| Weight | ~1.0–3.0 kg |
| Dimensions | ~150–350 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
