MIV0204-1-B1 Okuma
Wake Industrial LLC is not an authorized distributor of this product.
The Okuma MIV0204-1-B1 is an inverter unit from the MIV Servo Drives series, designed to support two axes. It is compatible with BL and PREX motors and operates with a control power of 24 VDC and a DC bus voltage of 300 VDC. The unit measures 380 mm in height, 100 mm in width, 325 mm in depth, and weighs 7.8 kilograms.
Internal Product Review
The MIV0204-1-B1 is an Okuma inverter unit for 2-axis servo applications in the MIV Servo Drives line. Support for BL motor and PREX motor platforms with a 300 VDC DC bus gives the inverter unit excellent application flexibility and stable power handling. A 24 VDC control supply simplifies cabinet integration, and 2.0 kW L-side capacity makes the MIV0204-1-B1 a capable servo drive solution.
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Product Description:
The MIV0204-1-B1 inverter unit is produced by Okuma for the MIV Servo Drives series. Serving as a dual-axis servo drive, the device conditions DC-bus energy and delivers regulated three-phase power to compatible Okuma motors in CNC equipment and automated machinery. By integrating with spindle and axis controllers, it translates motion commands into precise velocity and torque outputs for accurate positioning and contouring tasks. Its dual-axis arrangement reduces the number of separate drive modules needed for coordinated machine movement while maintaining independent control of each connected motor.
The drive supports two independent axes, so one frame can power both an X-axis saddle and a Y-axis saddle on a medium-sized machine tool. Internal logic and gate-drive electronics operate from a separate 24 VDC control supply, allowing the unit to continue reporting faults when the main power link is de-energized. The inverter stages draw energy from a common DC bus operating at 300 VDC, reducing line harmonics and permitting regenerative energy sharing during deceleration. The left-hand output has a continuous power rating of 2.0 kW, providing the mechanical output needed by the connected motor. Pulse-width modulation, protection, and feedback processing are handled by the ICB1 control board associated with the B1 revision. Protective functions monitor operating conditions and respond to electrical faults that could otherwise affect the motors or power stage.
Speed feedback from connected encoders is scaled internally at 1562 min⁻¹/V, providing the supervisory controller with a proportional analog signal for speed regulation. The housing is 100 mm wide, 325 mm deep, and 380 mm high, allowing multiple units to be rack-mounted in a narrow cabinet bay. With a mass of 7.8 kg, the drive can be secured within a machine control enclosure without requiring heavy-duty mounting supports. Compatible BL and PREX motor families connect through prewired terminals, which keeps motor and feedback connections organized. The narrow housing leaves room for neighboring control modules while maintaining access to the electrical interfaces. Regenerative energy can pass through the shared DC bus when either connected axis decelerates, allowing the other axis to use that returned energy when operating conditions permit.
