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Common DC Bus Servo Drive Solution



Mitsubishi Electric Automation, Inc. has released a common DC bus servo drive (MELSERVO-J5D) solution. MELSERVO-J5D servo amplifiers are suited for medium to large servo applications that require multiple drive units capable of managing regenerative energy.

Available in 400 V and 1 kW to 7 kW capacity, MELSERVO-J5D servo amplifiers expand the existing drive capabilities for the MELSERVO-J5 portfolio and are compatible with MELSERVO-J5 servo motors (HK-KT/ST/RT/MT).

"Common DC Bus servo amplifiers offer customers a unique servo based solution for applications that must handle regenerative energy," said a company spokesperson. "Regenerative energy is created when a servo motor decelerates or is driven by a large inertia, and in this case the servo motor acts as a generator. General-purpose servos dissipate this energy in the form of heat using internal or external regenerative resistors. Common DC Bus Servos are able to capture and reuse regenerative energy."

In a typical common DC Bus servo system, MELSERVO-J5D servo amplifiers are connected on a DC Bus Bar connected to a MR-CV Power Regeneration Converter Unit. The MR-CV converts 400 VAC power to DC. Regenerative energy can then be shared amongst the different servo drives, or recaptured and returned to the power supply, improving overall energy efficacy of a machine.

Common DC bus servo amplifiers offer users a number of benefits:

  • Conserve energy-When multiple MR-J5D-G4 drive units are connected to an MR-CV_4 power regeneration converter unit by a common DC bus connection, the regenerative power of one axis can be used for driving other axes, contributing to energy saving. The MR-CV can also return regenerative energy to the power supply for other power requirements.
  • Simplify wiring-Common DC bus connection reduces overall wiring requirements and eliminates the need for multiple MCCB or MC branch protection devices. Cables are managed above and below the servo amplifier, enabling a clean panel design.
  • Reduce panel space-The compact "bookshelf" type design of the MELSERVO-J5D reduces panel space when compared to general industrial servo amplifiers. With 1/2/3-axis models, large format servo systems can be managed in a compact space.

For more information contact:

Mitsubishi Electric Automation, Inc.

500 Corporate Woods Pkwy.

Vernon Hills, IL 60061

847-478-2100

us.mitsubishielectric.com/fa/en

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