Purchase now the 2094-BSP2, a high-capacity shunt module designed to manage regenerative energy within the Kinetix 6000 multi-axis drive system.
What Is the 2094-BSP2?
The 2094-BSP2 is a specialized Shunt Module engineered by Rockwell Automation to protect the common DC bus of a Kinetix 6000 system. During rapid motor deceleration, kinetic energy is converted back into electrical energy, causing the DC bus voltage to rise. The 2094-BSP2 monitors this voltage and dissipates the excess energy through its internal resistor as heat. This process prevents overvoltage faults and ensures the stability of the entire drive rack, making it an indispensable component for high-inertia applications or machinery with aggressive duty cycles, such as high-speed pick-and-place or heavy material handling.
Key Technical Specifications
- Continuous Shunt Power: 200 W
- Peak Shunt Power: 22.5 kW
- Resistance: 15 Ohms
- Bus Voltage Operating Range: 450V to 850V DC
- Efficiency: Integrated thermal management
- Mounting: 2094 Power Rail (Single-wide slot)
System Architecture and Heat Dissipation
The 2094-BSP2 mounts directly onto the Kinetix 6000 power rail, integrating seamlessly into the common DC bus. It communicates its thermal and operational status back to the Integrated Axis Module (IAM), allowing for real-time monitoring of shunt activity. In complex multi-axis systems, the use of a 2094-BSP2 is often more cost-effective and space-efficient than installing individual shunt resistors on every drive, as it centralizes energy management for all axes connected to the same rail. Its vertical orientation is optimized for natural convection cooling within industrial enclosures.
Expert Tips
When sizing your system, use the Motion Analyzer software from Rockwell Automation to determine if the 200W continuous rating of the 2094-BSP2 is sufficient for your deceleration profile. If your application involves frequent large-load stops, consider that the 2094-BSP2 can be supplemented with external resistors for even higher dissipation capacity. Always ensure that the cabinet ventilation is sufficient to handle the heat output generated by the shunt during peak braking cycles to prevent localized hotspots.
Frequently Asked Questions
Q: Can I use multiple 2094-BSP2 modules on a single power rail?
A: Yes, if the total regenerative energy exceeds the capacity of one unit, additional 2094-BSP2 modules can be added to the same DC bus to increase the total continuous wattage.
Q: What happens if the internal resistor overheats?
A: The module features an internal thermal switch that will trigger a fault on the drive system, stopping the motion to protect the hardware from permanent damage.
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