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The GE DS2020ACHAG3 is a Regenerative Chopper Circuit Board designed by General Electric as part of their Drive Control Series (often associated with the AC2000 drives).
⚡ Primary Function
The board’s core function is efficiently managing and dissipating surplus energy generated within an industrial drive system.
- Regenerative Braking Management: In applications where a motor is decelerating (regenerating energy), the motor acts as a generator, feeding electrical power back to the drive’s DC bus.
- Overvoltage Protection: This regenerative energy causes the voltage on the DC bus to rise rapidly. The DS2020ACHAG3 operates as a switch to connect external braking resistors to the DC bus when the voltage exceeds a safe threshold.
- Energy Dissipation: By shunting the excess energy into the resistors, which then dissipate it as heat, the board prevents overvoltage spikes and protects sensitive components within the drive system from damage. This is crucial for maintaining the stability, performance, and longevity of the industrial drive.
📌 Key Features
- Series Compatibility: It is a component of the GE Drive Control series, often specifically the AC2000 drives, and may also be compatible with certain Mark V series products.
- Power Management: It ensures a balanced power system by controlling excess energy.
- Robust Design: It’s built with high-quality components, including high-power resistors, to withstand harsh industrial environments.
This board is essential for high-inertia applications where frequent stopping or slowing of the motor occurs.
The video below explains the concept of a brake chopper circuit and how regenerative energy is handled in a variable frequency drive.
