Product Description:

Kollmorgen’s S7480A-EIF2-S3 belongs to the S700 Servo Drives series and operates as a digital drive module for precise motion control in automated machinery. By converting three-phase line power into regulated current for a synchronous or induction motor, the device coordinates speed, torque, and position loops over real-time fieldbus networks. Its role in industrial automation is to supply the commanded motor currents while providing electrical isolation, fault monitoring, and thermal management suited to continuous production environments.

The drive delivers a peak phase output of 96 Arms for rapid acceleration events, while the continuous rating is 48 Arms to match steady-state loads. It accepts mains supplies from 208 to 480 V AC and switches them at an output stage frequency of 8 kHz; this carrier frequency balances current ripple with switching losses. A facility input of 35 kVA is required from the installation. The output current form factor is 1.01, so the RMS value is almost identical to the average rectified current and thermal sizing of conductors is more straightforward. Cooling is supported by a plug-in fan-controller expansion card that modulates a controlled fan according to heat sink temperature, and the cold-plate design with coated PCBs resists condensation and airborne contaminants.

The residual voltage drop across the power stage is limited to 6 V, improving efficiency during high-current operation. At standstill, the electronics dissipate only 24 W, so cabinet heat rise stays moderate when the machine is idle. Overall mass is 10.4 kg, allowing panel mounting without heavy reinforcement. Safety is integrated through a dual-channel STO circuit that removes torque-producing energy within milliseconds, eliminating the need for contactors in many applications.