BDS3-208/30-08-102-450QB2P Kollmorgen
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The Kollmorgen BDS3-208/30-08-102-450QB2P is part of the BDS Industrial Servo Drives series and operates with a continuous current of 30 Arms per phase and a peak current of 53 Arms per phase. It is designed for a nominal DC bus of 300 VDC and supports input voltages of 208 VAC with a three-phase configuration. The unit uses a cooling method combining fan and convection through a cold plate and weighs 20 pounds.
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Product Description:
The BDS3-208/30-08-102-450QB2P is a servo amplifier produced by Kollmorgen within the BDS Industrial Servo Drives series. Serving as the power stage between a motion controller and a three-phase brushless motor, it rectifies the incoming mains power, shapes the output waveforms, and monitors feedback to drive industrial axes with tight velocity and position tolerances. The cabinet-mounted design supports compatible motor and feedback options, allowing multi-axis systems to maintain dynamic accuracy while meeting the space and cooling requirements of automated machinery.
During continuous operation, the drive delivers 30 A RMS per phase, which is the thermal limit for sustained torque production in connected motors. Short overloads are handled with a peak current of 53 A RMS per phase; this elevated current is available for acceleration or shock loads, but only for a 5-second interval. Operation at peak current must remain within a 30% duty factor to prevent the power semiconductors from overheating. Current flow is modulated by an IGBT bridge that switches at 4 kHz, balancing control bandwidth with electromagnetic emissions and switching losses. An internal fan works with an external cold-plate surface, allowing forced-air cooling or heat conduction to remove thermal energy from the power electronics when the drive is mounted inside a sealed enclosure.
Power is drawn from a three-phase mains supply rated at 208 VAC line to line, and the incoming voltage is rectified to a stabilized bus of 300 VDC that feeds the inverter stage. The control electronics are isolated and powered separately by a 115 VAC single-phase supply, protecting the logic circuits from disturbances on the main DC bus. The amplifier weighs 20 lb, which must be considered when selecting slide-out racks or cold-plate assemblies. A single PSR3 supply rail can accommodate up to six units, allowing several coordinated axes to share the same incoming power arrangement. Adequate structural support and unobstructed cooling paths are required when multiple amplifiers are installed together in one cabinet.
