Product Description:

The S74802-PBF2-PA is a digital servo drive manufactured by Kollmorgen within the S700 Servo Drives series. It converts three-phase mains power into precisely modulated current for synchronous or induction motors, letting a PLC or motion controller dictate axis position, speed, and torque in automated equipment. By combining high-speed signal processing with integrated safety, the drive provides the regulated power stage needed for packaging machinery, robotic joints, and conveyor sections where responsive and accurate motion is required.

Electrically, the unit accepts a line voltage of 208–480 V and delivers a rated output of 48 Arms. Its power section is sized for a continuous input of 35 kVA, while overloads can be sustained for 5 s before current limiting begins. Pulse-width modulation is executed at 8 kHz, balancing motor smoothness with thermal loss. Functional safety is supplied through a dual-channel STO circuit that removes drive energy without mechanical relays. Two PROFIBUS-DP ports permit daisy-chain networking, and the X5 connector can manage 16 remote I/O slaves. Analog positioning loops benefit from 1.25 mV input resolution and 0.38 mV output resolution, supporting fine torque tuning during closed-loop operation.

The mechanics and thermal profile support cabinet installation. The enclosure stands 386 mm tall, 190 mm wide, and 244 mm deep, while the assembled mass is 13 kg for straightforward panel mounting. An expansion card governs the cooling fan and starts airflow when the heat sink reaches 80 °C, keeping idle dissipation to 24 W. Under full load, the acoustic emission does not exceed 62 dB(A), matching typical plant noise targets. Standard PCBs are fitted to withstand industrial temperatures, and onboard diagnostics supervise switching losses and board temperatures to maintain operation within specified limits.