MIV22A-1-B5 Okuma
Wake Industrial LLC is not an authorized distributor of this product.
The Okuma MIV22A-1-B5 is an inverter unit from the MIV Servo Drives series, designed for use with one axis and a control power of 24 VDC. This unit has a DC bus supply of 300 VDC, supports a capacity of 22 kW or 30 hp on the L side, and weighs 11.2 kilograms. Its dimensions are 150 mm wide, 380 mm high, and 325 mm deep.
Internal Product Review
The MIV22A-1-B5 is an Okuma inverter unit engineered for single-axis service with a 300 VDC DC bus supply. With 24 VDC control power and 22 kW L-side capacity, the drive stands out as a capable and efficient servo platform.
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Product Description:
The MIV22A-1-B5 is an inverter unit produced by Okuma for the MIV Servo Drives series. Designed for CNC machining centers and similar equipment, the module forms the interface between the shared DC bus and a connected servo motor. It regulates power and processes motor feedback to support precise motion in automated machinery. The inverter also coordinates velocity and torque commands issued by the controller, allowing closed-loop positioning while maintaining a compact cabinet footprint.
The drive supports one controlled axis and supplies a dedicated feed or spindle group. Internal logic and I/O circuits are energized by a separate 24 VDC control rail, which isolates low-voltage signal circuits from the power stage. The high-power section receives energy from the shared 300 VDC bus. Its L-phase channel is rated at 30 hp when paired with a compatible servo motor. Motion-network addressing is configured through five controller-ID switch bits, permitting up to 32 unique node values in a multi-axis installation. This addressing method allows the controller to communicate with the intended inverter without confusing data from other connected axes.
The front panel includes a speed-feedback terminal with a scale factor of 1,562 rpm/V, allowing the CNC to monitor actual motor velocity directly through the inverter. A separate torque-monitoring channel provides a full-scale output of 3 V, which the machine control interprets as 100 percent load for process monitoring and alarm generation. The enclosure measures 150 mm across the rack, providing a narrow profile for installations with several adjacent drive modules. It stands 380 mm high and extends 325 mm deep, so the cabinet must provide sufficient vertical and rear clearance for installation and cable routing. The unit weighs 11.2 kg (24.6 lb), which must be considered when selecting rack supports and mounting hardware. Its enclosure dimensions allow multiple modules to be arranged within a shared thermal duct while preserving access to the front-panel terminals and controls.
