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OKUMA Servo Drive
Brand: OKUMA -
Cat: Servo Drive
Code:MIV0203-1-B1
| Combination name | Availability | Price |
|---|---|---|
Servo Drive Module – OKUMA MIV0203-1-B1
The MIV0203-1-B1 is an electronic servo drive module (“Servo Drive Module”) manufactured by OKUMA Corporation, a component of the OSP (Open System Platform) CNC control architecture installed on OKUMA machine tools. The module handles speed and current regulation for a servo axis, receiving references from the OSP internal bus and driving the axis brushless motor. It is also identified by the compact part number MIV02031B1; the “B1” suffix denotes the specific hardware revision.
The servo drive module is the axis controller that converts position and speed commands from the CNC into controlled motor current, closing the feedback loops in real time. Without this module the controlled axis does not respond to commands: the machine generates an axis alarm and cannot perform any machining operation. A fault typically manifests as axis positioning loss, axis drift, abnormal vibration, or immediate production cycle shutdown.
OKUMA Corporation, founded in 1898 in Nagoya, Japan, is one of the world’s leading CNC machine tool builders and the only major manufacturer to develop both the machine and its integrated CNC control system (the OSP – Open System Platform). Modules in the MIV series belong to the OSP-P200 / OSP-P300 control generations and are legacy / discontinued: available exclusively as used, NOS surplus, or through specialist repair services.
Main Technical Specifications
| Type | CNC servo drive module (Servo Drive Module) |
| Part number | MIV0203-1-B1 (MIV02031B1) |
| Brand | OKUMA Corporation |
| Known application | OKUMA CNC machine tools with OSP-P200 / OSP-P300 control (LB/LC lathes, MA/MB machining centres, GP grinders) |
| Function | Servo motor speed and current regulation; CNC axis control loop closure |
| Input voltage | ~200–240 V AC three-phase |
| Rated axis current | ~2–5 A continuous |
| Feedback | OKUMA absolute encoder / resolver (OSP internal bus) |
| Interfaces / connectors | OSP serial bus; multi-pin connectors for motor, power supply, and feedback signals |
| Hardware revision | B1 |
| Weight | ~1.0–2.5 kg |
| Dimensions | ~150–280 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
