Product Description:

The S74802-NAF2-PA is a Kollmorgen drive module positioned within the S700 Servo Drives series. It functions as a power electronics stage that converts three-phase mains into controlled motor current, allowing precise position, speed, and torque regulation for automated machinery including packaging lines, pick-and-place axes, and material handling gantries. The unit combines signal conditioning, safety monitoring, and thermal management in a single enclosure to simplify cabinet integration and to supply regulated energy to brushless servomotors commanded by a PLC or motion controller.

The drive operates from a three-phase supply of 208–480 V and delivers a continuous motor phase current of 48 Arms. With a power processing capability of 35 kVA, it can energize medium-to-large servomotors while maintaining thermal limits through an integrated fan controller. Internal IGBT switching is clocked at 8 kHz, a frequency that balances current ripple against switching losses. Command data can be fed through a differential ±10 V analog channel; this input presents 20 kΩ impedance and is digitized with 1.25 mV resolution, supporting fine velocity or torque commands. The output side mirrors this scale, providing a ±10 V monitor signal with 0.38 mV granularity that is refreshed every 250 µs for real-time feedback to external controllers. All circuitry is furnished on standard PCBs that conform to the S700 mechanical platform, giving predictable mounting and service procedures within a 190 mm wide, 386 mm high housing.

A dual-channel functional stop system provides dual channel STO to remove drive energy without affecting field wiring during an emergency stop. The aluminum chassis weighs 13 kg and measures 244 mm deep, which helps keep the enclosure manageable in stacked installations. Its housing is intended for cabinet mounting, and the compact depth supports dense drive layouts without adding unnecessary bulk.