Product Description:

The MIV0102-1-B3 is an inverter unit produced by Okuma for the MIV Servo Drives series. It functions as a dual-axis power stage that converts DC bus energy into controlled AC waveforms, allowing a CNC controller to regulate motor speed and torque in machining centers, lathes, and automated material-handling cells. Closed-loop position and velocity control supports coordinated movement on spindle and feed axes. Its shared drive platform also permits an orderly cabinet arrangement with compatible MIV modules and common bus connections.

The power section is compatible with BL and PREX motors, allowing the drive to operate standard brushless servomotors and Okuma PREX motor designs. Internal control is managed by the ICB1 inverter control board, which provides gating signals, processes current feedback, and detects power-stage faults for each half-bridge. The L-side channel is rated at 1.33 hp (1.0 kW) and can supply a lower-power feed-axis motor. This channel is suitable for controlled motion where its available output matches the connected motor and mechanical load. Separate regulation for the two outputs allows the inverter to control dissimilar loads without requiring two individual chassis.

The M-side channel is rated at 2.67 hp (2.0 kW), providing the higher output available from the module. It can support larger linear axes, rapid traverse movements, or intermittent load increases within the drive’s operating limits. The channel rating must be considered when selecting compatible motor conductors, circuit protection, and regenerative braking components for the installation. Axis feedback cards provide the position and velocity signals needed by the controller to regulate acceleration, deceleration, and torque. The module’s physical format supports stacking with compatible drive components and connection to the shared DC bus used by the machine’s motion system.