MIV05A-1-B5 Okuma
Wake Industrial LLC is not an authorized distributor of this product.
The Okuma MIV05A-1-B5 is part of the MIV Servo Drives series and functions as an inverter unit for BL and PREX motors. It offers a rated continuous capacity of 4.8 kW, supports a DC bus voltage of 300 VDC, and operates with a control power of 24 VDC. This second generation unit features one axis and weighs 5.0 kg.
Internal Product Review
The MIV05A-1-B5 is an Okuma inverter unit configured for single-axis servo drive service. Compatibility with BL Motor and PREX Motor platforms gives the unit strong application flexibility, while 24 VDC control power supports straightforward cabinet integration. A 4.8 kW rated continuous capacity makes the drive a solid choice for dependable motion performance.
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Product Description:
The MIV05A-1-B5 is an inverter unit delivered by Okuma within the MIV Servo Drives series. It converts DC-bus energy into regulated AC power for paired BL or PREX servo motors, allowing closed-loop speed and torque control on machine-tool axes and peripheral automation. The module occupies a single-axis slot in an Okuma drive rack, where it receives CNC or PLC motion commands through a dedicated backplane connector. Its rack-mounted format allows the inverter to operate alongside compatible power, control, and feedback modules in an integrated motion system.
This unit supports one servo channel, so its control electronics operate a single mechanical axis. The drive logic and I/O circuits use 24 VDC, keeping the low-voltage electronics isolated from the main power section. Motor power comes from a shared DC link operating at 300 VDC, and the inverter switches this voltage into a three-phase output while returning regenerative energy to the bus. Continuous motor output can reach 4.8 kW without thermal derating, making the unit suitable for midsize spindles or rapid-feed axes. The enclosure measures 380 × 60 × 295 mm, providing a slim footprint with space for adjacent amplifiers, filters, and wiring ducts. The narrow housing also supports orderly cable routing within an Okuma drive cabinet.
The onboard control software uses code ICB-H and provides motion profiles and diagnostic routines compatible with later Okuma control platforms. Sequencing is performed by the ICB1 control board, which plugs into the power section and interfaces with position feedback devices. The unit is a Second Generation release, and its parameter set and fault codes differ from those of earlier MIV amplifiers. Its mass is 5.0 kg, while the aluminum chassis provides a path for dissipating heat generated by the switching components. The Xt1 bus bar uses an M6 screw for its mechanical termination. Signal wiring connects to the Xt2L terminal with an M4 screw, allowing both fasteners to be tightened to the required torque during installation.
