PRD-B040EAIZ-33 Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen PRD-B040EAIZ-33 belongs to the CD Servostar CD Drives series and features an analog control interface with resolver feedback. It has a continuous current of 3 Arms, a peak current of 9 Arms for 500 milliseconds, and a speed regulation precision of 0.01%. The drive weighs 1.61 kilograms and has an overvoltage trip setting of 430 VDC.
Internal Product Review
The PRD-B040EAIZ-33 is a Kollmorgen Servostar CD servo drive with an analog control interface and resolver feedback. Precise motion performance stands out through 0.01% speed regulation and a 250 µs velocity loop update. A 9 Arms peak current supports strong dynamic response in demanding servo applications.
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Product Description:
The PRD-B040EAIZ-33 servo drive is manufactured by Kollmorgen for the Servostar CD Drives series. It delivers closed-loop motion control for brushless rotary actuators, converting an analog velocity or torque command into precisely modulated phase current. Shaft position is read through a resolver feedback channel, allowing the drive to synchronize its output with the motor’s electrical angle while maintaining tight speed control in industrial automation applications such as indexing tables, winders, and small pick-and-place axes.
The power section can supply a continuous output of 3 A RMS, while transient demands of up to 9 A RMS are supported for 500 ms to accelerate inertial loads. A space-vector modulation carrier switches at 16 kHz, and the position loop is refreshed every 500 µs. These parameters minimize audible noise and reduce cogging at low speeds. Internal heat dissipation is limited to 60 W, so cabinet airflow must accommodate that fixed thermal load. Velocity control is updated every 250 µs, and the motor current ripple is shaped at 32 kHz to keep torque ripple low. With these timing values, the drive achieves a speed regulation accuracy of 0.01%, holding process speed nearly constant despite supply or load changes.
An analog control interface supports integration with legacy PLCs that provide ±10 V commands. Protective circuits disable the drive when the heat sink reaches 80 °C, when the DC bus rises above 430 VDC, or when it falls below 90 VDC; these thresholds protect the power devices from thermal or electrical stress and prevent uncontrolled motor behavior during power disturbances. The electronics have a mass of only 1.61 kg, allowing high-density mounting on DIN rails without overloading lightweight control panels.
