Product Description:

The PRD-P306250E-45 is a three-phase servo drive manufactured by Kollmorgen for the SP Servostar Servo Drives series. It converts 230 VAC line power into controlled armature currents that regulate permanent-magnet servomotors, supporting accurate speed, torque, and position loops in packaging machines, material-handling gantries, and other automated cells. Integrated control logic, sensing, and fault handling allow the drive to be installed in distributed cabinets or directly on a machine where fast response and compact dimensions are required.

Under nominal conditions, the inverter can deliver a continuous mechanical output of 2.2 kW, and its power stage supplies a rated phase current of 6 A to compatible motors. The command port has an analog gain of 1.70 A/V and is energized by a ±15 VDC supply that draws 320 mA. Current feedback is scaled at 2.12 A/V so the closed-loop control system can compare measured and commanded values directly. A pulse-width-modulated bridge operates at 16 kHz, reducing audible noise while maintaining smooth motor operation. The logic electronics run from 8 VDC, and the remote enable circuit sinks 20 mA when active. Digital inputs recognize machine states when at least 10 V is present and turn fully off below 1 V, providing deterministic control of the power section.

During acceleration, the current ceiling rises to 12 A for two seconds, and a carrier-frequency ripple of 32 kHz in the motor current minimizes torque ripple at low speed. Internal power losses are 84 W, so cabinet airflow must remove this heat during sustained operation. The DC bus is protected by hardware that trips if the voltage exceeds 430 VDC or falls below 90 VDC, preventing semiconductor stress and control dropout. An overvoltage event diverts excess energy to a brake resistor. An undervoltage event forces an orderly shutdown until the line power stabilizes.