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OKUMA Servo Drive
Brand: OKUMA -
Code:MIV02-1-B1
| Combination name | Availability | Price |
|---|---|---|
Servo Drive Module – OKUMA MIV02-1-B1
The MIV02-1-B1 is a servo drive module (“Servo Drive Module”) manufactured by OKUMA, belonging to the MIV series (Motor Inverter Vector) of the integrated drive system for OKUMA machining centres and CNC lathes equipped with the OSP (Open System Platform) control. The module manages the current and speed regulation loops for linear or rotary axis drives, interfacing with the axis control board and the drive power stage on a proprietary rack. The designation MIV02-1-B1 identifies size class 02 (small to medium power rating), hardware revision B, issue 1.
The servo drive module is the core of the machine’s axis motion control: it receives position and speed references from the CNC and closes the regulation loops on the motor, ensuring geometric accuracy on each axis during machining. A failure of this module causes the immediate stop of the corresponding axis and makes it impossible to execute any machining cycle; in severe cases it may result in uncontrolled axis movement with risk of mechanical collision.
OKUMA is one of the world’s leading CNC machine tool builders, founded in Japan in 1898. The company is notable for its complete vertical integration: it designs and manufactures its CNC control (OSP – Open System Platform), drives and motors entirely in-house, ensuring long-term compatibility and support. Components in the MIV series belong to an older control generation and are legacy / discontinued: sourcing is possible only as used, surplus, or through specialist repair.
Main Technical Specifications
| Type | Servo drive module (Servo Drive Module) – MIV series |
| Part number | MIV02-1-B1 (MIV021B1) |
| Brand | OKUMA |
| Known application | OKUMA machining centres and CNC lathes with OSP (Open System Platform) control |
| Function | Servo axis motor current and speed regulation; closure of position / speed / current control loops |
| Power supply | DC bus from OKUMA rectifier / power supply module (typical 280–560 V DC) |
| Rated current | Size class 02 – small to medium current rating |
| Feedback | Encoder / resolver from axis motor (proprietary OKUMA interface) |
| Interfaces / Connectors | Multi-pin connectors on OKUMA rack; proprietary internal OSP bus |
| Weight | ~0.5–1.5 kg |
| Dimensions | ~100–250 mm |
| Production status | Legacy / discontinued — used / surplus / repair only |
