DESCRIZIONE PRODOTTO
MITSUBISHI BU-UFS 22 - Dynamic Braking Unit
The MITSUBISHI BU-UFS 22 is a dynamic braking unit engineered to manage regenerative energy generated by industrial AC motors during deceleration or overhauling loads. It integrates with Variable Frequency Drives (VFDs) to prevent DC bus overvoltage conditions by dissipating excess energy into an external braking resistor. This component is critical for applications requiring controlled stopping, rapid deceleration, or handling high-inertia loads in systems such as material handling, centrifuges, and machine tools.
Technical Specifications:
- SERIES/FAMILY: UFS Series
- COMPONENT TYPE: Dynamic Braking Unit
- ELECTRICAL SPECS:
- COMPATIBLE VFD POWER: Up to 22 kW (deduced from part number)
- DC BUS VOLTAGE RANGE: 540-810 VDC (typical for 400V class VFDs)
- BRAKING RESISTOR: External, user-supplied (resistance and power rating determined by application and VFD)
- DUTY CYCLE: Typically 10% ED (Electrical Duty) for intermittent braking
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Enclosed module
- MOUNTING: Panel or cabinet mount
- INTERFACE/CONTROL:
- CONNECTIONS: DC bus terminals (P+, N-) from VFD, braking resistor terminals (DB, P+)
- CONTROL METHOD: Integrated braking transistor, activated by VFD DC bus voltage threshold
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (for indoor, cabinet-mounted applications)
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION:
- COMPATIBLE VFD SERIES: MITSUBISHI FR-A, FR-E, or similar industrial VFDs
- APPLICATIONS: Cranes, hoists, centrifuges, machine tools, conveyors, and other systems with high-inertia loads requiring controlled deceleration or frequent stopping.