Install the External Shunt Module. Allen-Bradley External Shunt Modules

Allen-Bradley External Shunt Modules provide a way for servo drives to manage excess regenerative energy from the DC bus. These modules are passive shunt resistors that require activation by the servo drive. They prevent bus voltage from exceeding safe levels by dissipating excess energy as heat, minimizing drive faults and ensuring smooth system operation.

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Install the External Shunt Module. Allen-Bradley External Shunt Modules | Manualzz

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Key features

  • Passive shunt resistor
  • Requires servo drive activation
  • Prevents excess DC bus voltage
  • Dissipates energy as heat
  • Minimizes drive faults
  • Various kW ratings
  • Fan-cooled options

Frequently asked questions

An external shunt module provides a means for servo drives to safely dissipate excess regenerative energy from the DC bus. This is needed when system loads require power dissipation beyond the capacity of the internal shunt resistor in the drive.

The required size of the external shunt module depends on the continuous power rating of the drive system. Refer to the "Catalog Number Explanation" section in the viewed document for details on the specific module ratings.

It is recommended to mount the shunt module in an enclosure providing protection against dust and splashing water (IP54), or dust free and protected against water jets (IP65). Refer to the "Mounting Requirements" section in the manual for additional specifications.
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