MIV0203-1-B1 Okuma
Wake Industrial LLC is not an authorized distributor of this product.
The Okuma MIV0203-1-B1 is an inverter unit from the MIV Servo Drives series. It is compatible with BL motors and PREX motors, and features an ICB1 inverter control board. The inverter provides a capacity of 2.67 hp (2.0 kW) on the L side and 4 hp (3.0 kW) on the M side.
Internal Product Review
The MIV0203-1-B1 is an Okuma inverter unit in the MIV Servo Drives series, and the configuration presents as a solid fit for precision machine control. Compatibility with BL motor and PREX motor platforms, along with the ICB1 inverter control board, supports smooth integration in established Okuma systems. The 2.0 kW L-side capacity and 3.0 kW M-side capacity make this drive a capable choice for dependable servo performance.
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Product Description:
The MIV0203-1-B1 is a dual-output inverter module manufactured by Okuma and assigned to the MIV Servo Drives series. Within a CNC rack, it supplies pulse-width-modulated power to separate axes, acting as the interface between the shared DC bus and the individual motor windings. The module delivers precise current control so that each connected motor follows the velocity, position, or torque commands generated by the machine controller. Its dual-channel design allows two motors with different power requirements to operate from a single inverter housing.
On the L output, the inverter is rated for 2.67 hp, equivalent to 2.0 kW of continuous mechanical power. This rating indicates the maximum load the smaller axis can sustain without derating, allowing the channel to drive auxiliary functions such as tool changers or tailstocks. The M output has a higher limit of 4 hp, equivalent to 3.0 kW, enabling the same frame to energize a main feed axis that experiences heavier cutting forces. Combining two different power levels in one housing reduces the required cabinet space. It also allows the channels to share the module’s cooling arrangement while retaining separate motor control.
The inverter is compatible with BL motors and PREX motors, allowing the appropriate wiring and parameters to be selected for either motor family. Parameter storage is handled by Standard ROM 1, which provides default gain, limit, and alarm settings when no machine-specific file is present. Regulation and protection tasks are managed by the ICB1 control board, which contains the gate-drive circuitry, current sensors, and logic required for vector control. The board also monitors operating conditions and interrupts conduction during overcurrent or thermal events, helping protect the inverter module and connected motors from damaging electrical or temperature conditions.
