Product Description:

The S7480A-NAF2-NA belongs to the S700 Servo Drives series manufactured by Kollmorgen. It is a servo drive that conditions three-phase power for precision servo motors in automated machinery, providing closed-loop current and velocity control so motion axes follow commanded profiles accurately. By integrating a cold-plate base and coated printed circuit boards, the unit is suited for cabinets where forced-air paths are restricted and contamination levels are higher than normal.

The drive delivers a continuous output of 48 Arms and can supply up to 96 Arms for short acceleration bursts. It accepts mains supplies from 208…480 V and draws a maximum input power of 35 kVA under rated load. Power devices are switched at an 8 kHz output-stage carrier frequency, which improves current-loop bandwidth and reduces audible motor noise. Dual-channel STO meets functional safety needs by removing gate power to the IGBTs without opening the main contactor, and the permitted switch-on and switch-off rate of 30 cycles per hour supports applications that start and stop frequently. A plug-in fan-controller expansion card manages auxiliary fans mounted on the cabinet roof to match airflow with internal temperatures, and the coated PCB option protects fine-pitch components from conductive dust.

The thermal design is anchored by a machined cold plate that weighs 10.4 kg; it must be coupled to a mounting plate held within 25 µm flatness over every 100 mm to maintain even pressure. Heat leaving the semiconductors is limited by a maximum thermal resistance of 0.055 K/W, while the cold-plate temperature may not exceed 75 °C. When the drive is disabled, residual dissipation is 24 W, so enclosure airflow cannot be fully halted. Overall dimensions are 386 mm high, 190 mm wide, and 244 mm deep without connectors. Operating noise tops out at 62 dB(A), and the aluminum base adds mass to the assembly for stable mounting.