MIV08A-1-B5 Okuma
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MPN: 1006-2319-0535023
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The Okuma MIV08A-1-B5 is an inverter unit with a rated capacity of 7.5 kW and weighs 5.5 kilograms. Part of the MIV Servo Drives series, it supports one axis and features a BL/PREX motor type. The unit operates with a control supply of 24 VDC and a DC bus supply of 300 VDC, and has dimensions of 380 mm in height, 100 mm in width, and 295 mm in depth.
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Product Description:
The MIV08A-1-B5 servo drive is produced by Okuma as part of the MIV Servo Drives series. This Okuma inverter unit regulates power for BL/PREX servo motors on machine-tool axes, converting DC bus energy into controlled AC so speed and torque follow CNC commands. In automated machining centers, it closes the servo loop for an individual machine axis, coordinating with the host controller to position slides and spindles with accuracy. The unit is intended for axis control where stable response and repeatable motion are required during cutting and positioning cycles.
The drive supports 1 axis, which simplifies installation when only one motion channel is needed. Its logic circuits draw 24 VDC from the machine supply, while the power section is fed by a 300 VDC DC bus that links multiple inverters to a common rectifier. With a rated output of 7.5 kW, the unit can energize mid-frame BL/PREX motors used on feed or auxiliary axes. Thermal control relies on 2 external fans. The upper assembly SA001-0919-144A00 and the lower assembly SA001-0919-145A00 move air across the heat sink to keep semiconductor temperatures within operating limits. This arrangement supports continuous operation without requiring a separate liquid-cooling circuit.
The inverter weighs 5.5 kg, which helps limit the load placed on the mounting surface compared with larger axis modules. Its footprint is held to a width of 100 mm, a depth of 295 mm, and a height of 380 mm, permitting dense stacking of several drives without obstructing airflow. These dimensions leave room for front air intake and upward exhaust through the cooling path. The BL/PREX motor interface is routed through a single connector block, which keeps motor-side connections grouped in one location. Compact proportions also help the drive fit machine cabinets where space around neighboring modules is limited.
Frequently Asked Questions about MIV08A-1-B5:
Q: How many axes can the MIV08A-1-B5 drive manage?
A: The MIV08A-1-B5 servo drive is designed to control a single axis.
Q: What is the control supply voltage for the MIV08A-1-B5?
A: This model requires a 24 VDC supply for control operations.
Q: How is cooling handled in the MIV08A-1-B5 servo drive?
A: Two external cooling fans are included to maintain proper operating temperatures.
Q: What is the required DC bus voltage for the MIV08A-1-B5?
A: The MIV08A-1-B5 operates with a DC bus supply of 300 VDC.
Q: What is the rated output capacity of the MIV08A-1-B5 servo drive?
A: This drive has a rated capacity of 7.5 kW for its output power.
