Product Description:

The S74802-2CF2-PM is a digital servo amplifier manufactured by Kollmorgen as part of the S700 Servo Drives series. It converts a three-phase mains supply into controlled motor power for automated assembly stations, material-handling gantries, and similar equipment. By integrating motion control logic, safety inputs, and fieldbus connectivity in one housing, the unit simplifies cabinet layouts while delivering precise torque, velocity, and position regulation. The integrated design also reduces the need for separate interface modules inside the control cabinet. It is intended for closed-loop servo applications that require stable response during acceleration, holding, and repeated positioning.

The drive accepts a supply range of 208–480 V and is designed for loads that draw up to 48 A rms continuously. With a switching frequency of 8 kHz, the power stage minimizes current ripple, and the current form factor is 1.01. The input side must be able to deliver 35 kVA, and the internal semiconductor drop is limited to a residual 6 V. Functional safety is provided by dual-channel STO, which permits immediate torque removal without external contactors. Heat generated when the output stage is blocked reaches only 24 W, and forced ventilation is managed by the onboard fan controller. The model uses standard PCBs with conformal coating. A width of 190 mm and a height of 386 mm allow side-by-side mounting in 600 mm deep cabinets.

Mechanical integration benefits from a depth of 244 mm and a mass of 13 kg, so common linear rails or horizontal plates can carry the unit without additional bracing. During operation, the acoustic emission remains below 62 dB(A), which supports installation in operator-accessible lines. Up to 30 on-off cycles per hour are permitted, helping limit semiconductor temperature rise during indexing tasks. The enclosure proportions also leave space for airflow around the cooling path when adjacent components are mounted nearby. This layout helps maintain consistent cooling without requiring extra cabinet hardware.