MDU-08-SA

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The MDU-08-SA is a servo drive featuring a step angle of 1.8° and a rated current of 4.3 A. Manufactured by Okuma under the MDU Servo Drives series, it operates on an input voltage of 24V DC. Additionally, it offers a holding torque of 0.85 Nm and phase resistance of 1.2 Ohm for precise performance.

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Product Description:

The MDU-08-SA is a high-performance Servo drive unit that is made to give precise control over servo motors in complex CNC cutting tasks. This unit is made by Okuma, a company known for its cutting-edge innovations in industrial robots. The servo drive works reliably and accurately in difficult manufacturing processes.

The MDU-08-SA servo drive is designed to be efficient. The servo drive can have input voltages between 283V and 325V DC and send out 200V AC three-phase variable frequency. The drive delivers 6.57 kVA of power and can handle a 50kA RMS SYM short-circuit current, so it will last in industrial settings with a lot of load. The drive operates on two axes, which are referred to as Axis SB and Unit U2. This enables the motors to be operated in a manner that is both efficient and in sync. It is possible to utilize the servo drive for complex robotics and cutting operations that require consistent motor performance because of its strong design, which allows it to readily fit into current CNC systems. These connection options allow the users to connect to various control systems, making them more suitable with modern CNC platforms.

The MDU-08-SA servo drive has many connections and interface ports to make it easier to use and integrate with other systems. An RS-232 serial transmission port and EPG, PGC, and PGL connectors for encoder and power signal exchange are also on board. The CHG charge indicator and RES reset input assist in the identification and resolution of system issues, while an E1S interface enables the connection of an encoder or stepper. Because of its advanced connectivity and precise performance, the servo drive will continue to be an important and useful part of high-tech industrial settings.

Axis Configuration
Axis: SB, Unit: U2
Connectors and Ports
CHG, RES, E1S, EPG, PGC, PGL, RS-232
Holding Torque
0.85 Nm
Input Voltage
24V DC
Phase Inductance
3.9 mH
Phase Resistance
1.2 Ohm
Rated Current
4.3 A
Rated Input
DC 283V - 325V
Rated Output
AC 200V (3-phase) Variable Frequency
Rated Output Power
6.57 kVA
Short Circuit Current Rating
50kA RMS SYM
Step Angle
1.8°

Frequently Asked Questions about MDU-08-SA:

Q: Why does the MDU-08-SA have a rated input?

A: The rated input ensures stable operation. It supports compatibility with the intended DC voltage range for consistent performance.

Q: How does the MDU-08-SA output variable frequency?

A: It converts DC voltage into a variable-frequency AC output. This allows precise speed and torque control for the servo motor.

Q: Why is the MDU-08-SA’s SCCR rated 50kA?

A: A high SCCR ensures the unit can safely handle short circuit events. This increases reliability in demanding manufacturing environments.

Q: Does the MDU-08-SA have an encoder interface?

A: Yes, it has an E1S interface. This supports precise feedback and control of the servo motor’s position and speed.

Q: How do the MDU-08-SA’s ports enhance functionality?

A: Multiple ports enable easy connection to encoders, signals, and control systems. This ensures integration flexibility for various applications.


Internal Product Review

  • ‘‘The MDU-08-SA excels in precision with its variable-frequency AC output and robust short-circuit current rating. Its versatile port configuration supports seamless CNC integration. High reliability and accurate performance make the MDU-08-SA a strong choice for demanding manufacturing applications.’’

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