MIV30-3-V3 Okuma
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MPN: 1006-2260-044-016
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The Okuma MIV30-3-V3 is part of the MIV Servo Drives series and serves as an inverter spindle drive for VAC motors. This single-axis unit operates with a 24 VDC control supply, a 300 VDC DC bus supply, and delivers a capacity of 30 kW or 40 hp. The drive features internal and external cooling fans, measures 380 mm in height, 325 mm in depth, 300 mm in width, and weighs 24.0 kg.
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Product Description:
The MIV30-3-V3 is an Okuma inverter unit in the MIV Servo Drives series. It serves as a dedicated spindle drive for a single VAC motor axis, translating DC bus energy into regulated three-phase output for CNC machine-tool spindles. In automated machining cells, the unit links directly to the controller, allowing coordinated speed and torque regulation while maintaining the compact drive layout typical of Okuma multi-axis platforms. Because it is dedicated to one spindle axis, the drive section is focused on spindle acceleration, deceleration, and steady speed control within the machine power stack.
The inverter processes a DC bus of 300 VDC sourced from the common converter and delivers spindle power on one axis rated up to 40 hp, equivalent to 30 kW on the L-side channel. Control logic and relays are energized from a separate 24 VDC supply, which isolates the command electronics from the main power stage. Using a separate low-voltage supply keeps the control section electrically distinct from the higher-energy inverter circuit. The unit functions as an inverter spindle drive and is optimized for VAC motor characteristics such as a wide speed range and regenerative capability. Internal and external cooling fans remove switching losses, and the unit has an overall height of 380 mm for cabinet installation alongside other MIV modules.
The housing extends 325 mm in depth, spans 300 mm in width, and weighs 24.0 kg. These dimensions suit backplane-style mounting positions commonly used in spindle drive sections of machining-center cabinets. Power conductors fasten to an M6 upper terminal screw and an M10 lower terminal screw, both grouped on terminal blocks XT1 and XT2 to keep bus and motor wiring separated. A front-panel status display with two 7-segment indicators presents run data and faults, including the dedicated overheat alarm code AL 05. This front display allows operating status to be viewed without opening the terminal area.
Frequently Asked Questions about MIV30-3-V3:
Q: How many axes does the MIV30-3-V3 drive support?
A: The MIV30-3-V3 supports control of a single axis for precise positioning tasks.
Q: What is the L side capacity in horsepower for the MIV30-3-V3?
A: This unit has an L side capacity of 40 hp, providing substantial power for demanding spindle operations.
Q: What control supply voltage is required for the MIV30-3-V3?
A: The control supply voltage for this model is 24 VDC.
Q: What type of cooling fans are incorporated in the MIV30-3-V3 drive?
A: The MIV30-3-V3 provides both internal and external cooling fan options to maintain optimal operating temperatures.
Q: What kind of status display does the MIV30-3-V3 provide?
A: This drive comes equipped with a 2 x 7-segment status display, ensuring clear monitoring of its operating status.
