Product Description:

The S74802-2CF2-S3 is a servo drive developed by Kollmorgen for the S700 Servo Drives series. In automated machinery, this device sits between the mains supply and the motor, modulating current, voltage, and switching frequency so that position, speed, and torque follow commands from higher-level motion controllers. By coordinating these variables in real time, the drive enables precise axis performance in packaging lines, robotics, and similar industrial equipment, while supporting the safety and diagnostic functions used in modern plant designs.

The electrical ratings describe the operating range of the S74802-2CF2-S3. The drive accepts three-phase AC in a range of 208 to 480 V and can draw a continuous input of 35 kVA to energize high-power axes. Internally, an output stage clocked at 8 kHz uses pulse-width modulation to generate sinusoidal motor current. Under nominal conditions, the inverter delivers a rated phase current of 48 Arms, while short-term acceleration or disturbance rejection can be handled with a peak capability of 96 Arms. Control of auxiliary devices is possible through digital outputs that source up to 100 mA, and a separate brake channel supplies a maximum of 3 A for holding brakes on vertical axes. All electronic assemblies use standard PCBs, which keep the internal layout consistent across production units.

The housing and safety features support installation and operation in multi-axis systems. The aluminum housing measures 386 mm in height, 190 mm in width, and 244 mm in depth without connectors, with a total mass of 13 kg that allows panel installation without reinforcement. Thermal cycling is limited by a permitted switch-on and switch-off frequency of 30 cycles per hour, and airflow is managed by an integral fan controller expansion card. Functional safety is provided by a dual-channel STO circuit that removes drive power without affecting the control electronics.