MIV15-1-B5

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The Okuma MIV15-1-B5, part of the MIV Servo Drives series, is a 1-axis control inverter unit compatible with BL and PREX motors. This unit supports a motor capacity of 15 kW and operates with an input voltage of 300 VDC. It weighs 11.2 kg, has typical resolver signal voltage of 6.0 V, and measures 380mm × 150mm × 325mm.

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Product Description:

Okuma developed the MIV15-1-B5 Servo Drive as one of its modern industrial automation products. The device delivers precise control for both BL motors and PREX motors in its operational design. This single-axis control inverter from the device serves industrial motion control needs. This drive enables reliable operation through a 300 VDC electrical supply.

The MIV15-1-B5 Servo Drive> implements accurate torque control to enhance motor operations. The device operates with torque control output voltages that extend between -3 V to +3 V. It maintains a maximum torque output voltage at 3 V to ensure effortless motor movement. The drive enables operation with motor capacities reaching up to 15 kW (20 hp). The servo motor feedback accuracy relies on a typical resolver signal operating at 6.0 V. The system includes a Z-phase position detector which enhances the positional precision function. A Z-phase detector functions properly in < when operating at voltages Vz1 which exceed 1.4 V and Vz2 exceeds 0.5 V. During monitoring the peak-to-peak A-phase voltage operates within a range of 2.6 V to 4.6 V. The system contains essential components that enhance motor stability when used in demanding operating conditions.

Integration of fans in the MIV15-1-B5 Servo Drive protects it by dissipating heat efficiently. A continuous operation becomes possible through heat dissipation protocols that prevent device overheating. You can install this system in different applications thanks to its dimensions of 380 × 150 × 325 mm. Users can easily set up and handle the device because it weighs about 11.2 kg (24.6 lb). Power distribution through the Servo Drive remains stable in conditions that demand high levels of power. This device serves CNC machines and additional precision-based industrial systems.

Applicable Motor Capacity
15 kW (20 hp)
Control Compatibility
Supports BL and PREX motors
Cooling method
Fan cooled
Dimensions (h × W × D)
380 × 150 × 325 mm (14.96 × 5.91 × 12.79 in)
Input Voltage
300 VDC (control power included)
Monitor Terminal A-phase Signal
Vpp: 2.6 to 4.6 V
Monitoring Signal Z-phase
Vz1 ≥ 1.4 V; Vz2 ≥ 0.5 V
Motor Peak Torque Output
At 3 V
Output Voltage Range
-3 V to +3 V
Resolver Signal Voltage
6.0 V (typical)
Unit Type
1-axis control inverter unit for various motor types
Unit Weight
11.2 kg (24.6 lb)

Frequently Asked Questions about MIV15-1-B5:

Q: Why does Okuma MIV15-1-B5 use a single-axis inverter?

A: The Okuma MIV15-1-B5 uses a single-axis inverter to optimize motor control. This enables precise speed and torque adjustments in automation systems.

Q: How does the fan-cooled heat dissipation benefit MIV15-1-B5?

A: The Okuma MIV15-1-B5 employs a fan-cooled heat dissipation system to prevent overheating. This ensures long-term operational efficiency under heavy load conditions.

Q: How does the Z-phase position detector enhance accuracy?

A: The Okuma MIV15-1-B5 includes a Z-phase position detector for accurate position measurement. This ensures precise motor synchronization in automation processes.

Q: Why does MIV15-1-B5 integrate BL and PREX motors?

A: The Okuma MIV15-1-B5 supports BL and PREX motors to enhance compatibility. This integration provides flexibility across different motor-driven applications.

Q: What makes the compact size beneficial for MIV15-1-B5?

A: The Okuma MIV15-1-B5's compact 380 × 150 × 325 mm size enables space-efficient installation. This design suits environments with limited mounting areas.


Internal Product Review

  • ‘‘The Okuma MIV15-1-B5 Servo Drive delivers 15 kW power and supports precise torque control with a 3 V peak voltage output. Its 2.6 to 4.6 V A-phase monitoring ensures operational stability. It excels in demanding industrial environments by featuring fan-cooled heat dissipation and a compact design.’’

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