Product Description:

The MIV0405A-1-B5 is an Okuma inverter unit in the MIV Servo Drives series. Produced as a modular servo drive, the unit coordinates torque and speed for two machine axes, forming the power interface between a CNC control and matched synchronous or induction motors in modern production equipment. By converting power from a fixed DC link into phase-controlled outputs, it supplies regulated current to the L-axis and M-axis motors. Motor feedback enables the controller to maintain closed-loop motion and correct deviations in real time.

This drive services 2 independent axes while drawing logic power from a 24 VDC control supply. Its main converter is connected to a 300 VDC bus, which provides the intermediate circuit for all pulse-width-modulated outputs. The L-axis has a motor capacity of 4 kW, and the rated output for this channel is 4.0 kW. The M-axis has a continuous motor capacity of 4.8 kW and a rated output limit of 5.0 kW. These ratings support simultaneous positioning and contouring on medium-sized machine tools. The unit uses a resolver interface, so a sine-cosine transducer mounted on each motor reports the rotor angle and speed to the servo processor. This feedback allows the processor to adjust inverter switching patterns as operating conditions change.

The resolver carrier has an amplitude of 6.0 Vpp and a period of 102.4 µsec, aligning the analog feedback with the internal sampling rate. A speed scale of 1562 min⁻¹/V supports velocity calculation, while a voltage error scale of 1/42 sets how the controller interprets offsets in the analog path. The enclosure measures 380 mm in height, 100 mm in width, and 295 mm in depth. It weighs 6.5 kg, allowing installation in dense cabinet layouts without adding excessive mass to the mounting panel.