MDU-04-F

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The MDU-04-F is a modular flow control valve weighing 2.9 kg (6.40 lbs) with an adjustment range of 0.5 to 70 L/min. Manufactured by Okuma as part of the MDU Servo Drives series, it features a mounting surface complying with ISO 4401-03-02-0-05. The valve withstands a pressure of up to 31.5 MPa (4570 PSI).

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Wake Industrial Warranty
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Product Description:

The MDU-04-F Servo Drive is a module manufactured by Okuma for industrial automation practices. The servo drive main role is to control the torque, speed and position of a connected servo motor.

The MDU-04-F servo drive supports the U 2.02 software version which ensures better stability and improved motor control algorithms. The module has 16.2 amperes rated output current which allows it to power larger or higher torque motors reliably. The drive is included with an external cooling fan SanAce40WF model which ensures that it remains within safe operating temperatures even during heavy motor loads. Its rated output voltage is AC 200 Volts which shows its ability to supply a controlled 3-phase AC output at adjustable frequencies. For secure communication and power interfacing it has multiple robust industrial grade connectors which provide dependable and vibration resistant connections critical for industrial automation reliability and noise immunity. It is enclosed in a heavy duty metallic enclosure which protects sensitive electronics inside from dust, physical impact, and electromagnetic interference. The safe ambient temperature range in which the drive can reliably operate without overheating or performance degradation is 0 to +40 degrees Celsius.

The MDU Servo Drives series module can work in moderately humid environments below 90% but must avoid direct condensation or water exposure. It has an 50kA RMS SYM short circuit current rating which represents its design strength to withstand high fault currents momentarily without catastrophic failure. It requires a 283V to 325V high voltage DC input which is typically supplied by a rectified AC source or a DC bus system in the CNC or automation setup. It is featured with two black multi pin connectors which are used for motor feedback or command interfacing.

Adjustment Range
0.5 to 70 L/min
Filtration
25 µm, β10 ≥ 75
Flow Rate
70 L/min (18.5 U.S.GPM)
Hydraulic Fluid
Mineral Oil Based or Equivalent
Maximum Operating Pressure
31.5 MPa (4570 PSI)
Mounting Bolt
M6 × 50
Mounting Surface
ISO 4401-03-02-0-05
Port Size
Rc 3/8
Pressure Adjustment Range
0.7 to 21 MPa
Recommended Viscosity
15 to 400 mm²/s
Seals
Nitrile Rubber (Standard), Fluoro Rubber (Optional)
Temperature Range
-15°C to +70°C (5°F to 158°F)
Type
Modular Flow Control Valve
Weight
2.9 kg (6.40 lbs)

Frequently Asked Questions about MDU-04-F:

Q: How does the heatsink design improve performance in the MDU-04-F servo drive?

A: The extended heatsink increases surface area, improving passive cooling under continuous load. This ensures thermal stability and prolongs the component's lifespan.

Q: Why is the fan model SanAce40WF used in MDU-04-F servo drives?

A: SanAce40WF provides high static pressure and airflow in compact size. It’s ideal for maintaining low operating temperatures in high-density electronic enclosures.

Q: How do the dual multi-pin connectors enhance MDU-04-F signal reliability?

A: These connectors offer secure motor feedback and command signal pathways. Their rugged design minimizes signal loss and vibration-related disconnections.

Q: What benefit does the U:2.02 firmware version bring to MDU-04-F servo drives?

A: U:2.02 supports advanced error handling and motion control precision. It ensures better motor performance across variable speed and torque conditions.

Q: Can the MDU-04-F be used in high-vibration environments like CNC machines?

A: Yes, the MDU-04-F’s robust connectors and metallic housing withstand high-vibration. It is specifically built for machine tool applications.


Internal Product Review

  • ‘‘The MDU-04-F Servo Drive offers reliable thermal management with its SanAce40WF cooling fan. Its 50kA SCCR and U 2.02 firmware enhance fault tolerance and control precision. With dual multi-pin ports and a rated output of 16.2A, this Okuma drive ensures consistent performance across demanding environments.’’

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