BDS3-230/12-01-240-404AA53 Kollmorgen
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The Kollmorgen BDS3-230/12-01-240-404AA53 servo drive is part of the BDS Industrial Servo Drives series. It features a brushless sine wave controller and supports a continuous current of 12 Arms per phase, with an intermittent current of 20 Arms per phase. The servo drive operates on a 115 VAC single-phase control power and uses fan and convection cooling with a 4 inch standard module width.
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Product Description:
The BDS3-230/12-01-240-404AA53 is a modular servo drive produced by Kollmorgen within the BDS Industrial Servo Drives series. The unit functions as a brushless three-phase current regulator that delivers commanded sine-wave power to matched servo motors, allowing machine controllers to vary torque and velocity with repeatable precision. In industrial automation, the drive forms the interface between PLC motion commands and motor windings, converting low-level reference signals into high-energy pulses suitable for axis positioning. Its modular format supports integration into coordinated motion systems that operate several motor-driven axes from a shared power architecture.
At its power stage, the module supplies 12 A RMS of continuous current per phase, allowing sustained operation of mid-frame servo motors without derating. The control electronics are energized from a single-phase source at 115 VAC, so logic power can be derived from standard utility circuits. The internal DC link operates at 300 VDC, providing the voltage headroom needed for rapid acceleration events. For short moves or peak load transients, the drive can temporarily deliver 20 A RMS per phase before thermal limits intervene. Current is modulated through insulated-gate devices that switch at 4 kHz, producing a near-sinusoidal waveform that minimizes audible motor noise and reduces copper losses. This current regulation allows the connected motor to respond quickly to changing torque commands while maintaining smooth rotation during controlled motion.
The housing uses a standard fan-cooled four-inch layout, and heat is removed by forced airflow supplemented by convection into a cold plate. Under overload conditions, the current boost can be maintained for 5 seconds, and the control algorithm permits this excursion at a 30% duty cycle so repetitive spikes do not overheat the semiconductors. Up to 6 drive modules can be connected to a common BDS power supply, supporting multi-axis machines while keeping power wiring compact. The physical width of 4 inches supports dense panel installation and leaves room for accessory filters or contactors. The shared supply arrangement also reduces the number of separate power connections required within the enclosure.
