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OKUMA Servo Drive
Brand: OKUMA -
Code:MIV22-3-V5
| Combination name | Availability | Price |
|---|---|---|
Servo Drive Unit – OKUMA MIV22-3-V5
The MIV22-3-V5 is an intelligent vector servo drive (“Motor Intelligent Vector Drive”) manufactured by OKUMA, belonging to the MIV (Motor Intelligent Vector) series. It is designed for use in OKUMA CNC machining centres and lathes equipped with the proprietary OSP (Open System Platform) control system. It handles vector speed and torque regulation of the axis servo motor, receiving digital set-point references from the CNC and driving the power stage accordingly. The designation “MIV22” indicates the rated current class (~22 A); the suffix “3” identifies the variant or number of controlled axes, while “V5” denotes the firmware/hardware revision.
The servo drive is the electronic heart of the axis motion system: it converts the digital references from the OSP control into current supplied to the servo motor, ensuring precise positioning and dimensional repeatability in the machined part. If it fails, the controlled axis loses all ability to move in a controlled manner, rendering the machine unusable and halting production.
OKUMA Corporation, founded in 1898 in Nagoya, Japan, is one of the world’s leading CNC machine tool builders. It is one of the few manufacturers to develop in-house the machine, the numerical control (OSP – Open System Platform), and the motors and drives, ensuring full system integration. Components of the MIV series in older versions are legacy / discontinued and primarily available as refurbished used parts or through specialist repair services.
Main Technical Specifications
| Type | Intelligent vector servo drive (Motor Intelligent Vector Drive) |
| Part number | MIV22-3-V5 (MIV223V5) |
| Brand | OKUMA Corporation |
| Known application | OKUMA CNC machining centres and lathes with OSP control (e.g. MC, MB, LB, LU, MA series) |
| Function | Vector speed and torque regulation of axis servo motor |
| Rated current | ~22 A |
| DC bus voltage | ~300–340 V DC |
| Interfaces | OSP serial bus, encoder/resolver connectors, power terminal strip |
| Revision | V5 (Version 5 – firmware/hardware revision) |
| Weight | ~2.0–4.5 kg |
| Dimensions | ~200–380 mm × 100–200 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
