Product Description:

The MIV0202-1-B1 is an inverter unit developed by Okuma for the MIV Servo Drives series. It converts regulated DC-bus power into variable-frequency, variable-voltage three-phase output for axis and spindle motors used in CNC machining centers, turning cells, and automated transfer lines. The module installs in a rack-mounted drive stack, where it operates alongside other drive components without requiring an individual power converter for each motor. A fiber-optic system bus carries status information, fault data, and operating parameters between adjacent amplifiers and the central controller, supporting coordinated multi-axis motion.

The inverter supports BL and PREX motor models, allowing it to operate with standard AC servo motors and high-torque PREX spindle motors. Its left output channel has a continuous rating of 2.0 kW, corresponding to a mechanical output of 2.67 hp. This continuous rating indicates the available output for the L-axis motor before thermal derating is required. Signal processing is managed by the Standard ROM 1 software package, which contains current-loop, speed-loop, and protective control routines for general machine operation. A dedicated ICB1 inverter control board manages gate switching, electrical isolation, and feedback sampling while monitoring phase current for overcurrent and short-circuit conditions.

The right-hand output is identified by the M-side capacity designation and provides a second controlled motor connection for paired machine axes. This channel arrangement supports applications such as twin conveyors, tool turrets, and gantry legs that require coordinated movement from a common inverter module. The unit is classified as an Okuma Inverter Unit, indicating that its primary function is power conversion for connected motors rather than standalone machine control. Its shared diagnostic code structure and parameter organization allow faults and operating conditions to be evaluated consistently through the connected control system.