Product Description:

The MIV08-3-V5 is an Okuma inverter unit delivered within the MIV Servo Drives series. Okuma positions this drive between the CNC controller and either a VAC or IPM servo motor, supplying regulated power and vector-based control signals that keep axis speed and torque within programmed limits during machining cycles. By integrating inverter, control logic, and regenerative handling in one housing, the unit streamlines cabinet wiring for automated machine tools. This arrangement supports consistent motor response during rapid acceleration, deceleration, and contouring moves.

The drive’s logic section is energized by 24 VDC, isolating the signal electronics from the power stage, while a DC bus rated at 300 VDC links the input rectifier to the IGBT inverter that modulates motor current. A continuous capacity of 7.5 kW marks the steady-state power limit for spindle or feed-axis operation, and a motor output of 10 hp indicates the maximum shaft power available from the connected motor under full load. Cabinet planning is aided by a footprint only 100 mm wide and 325 mm deep, allowing multiple axes to mount side by side without exceeding standard rack depths. Control ROM type 5 stores motion parameters and diagnostics for the first-generation power electronics. The unit accepts VAC or IPM motor feedback directly, so no external signal converters are required, and its first-generation design supports legacy OSP controller revisions.

Total stack height reaches 380 mm, which fits inside most knee-type or gantry control enclosures. Installation weight is kept to 7.3 kg, which makes the module easier to handle during cabinet assembly. An ICB3 control board supervises gate drive timing, fault capture, and real-time communication with the host CNC. It also coordinates inverter operation with protective responses so status changes can be reported quickly during axis movement.