Product Description:

The S7480A-DNF2-NA servo drive is produced by Kollmorgen as part of the S700 Servo Drives series. As a digitally controlled power stage, it supplies regulated three-phase output to synchronous or induction servomotors used in positioning, packaging, and material-handling equipment. It converts incoming line power into a pulse-width-modulated motor output so the drive can follow torque and speed commands from a higher-level motion controller. This arrangement allows one unit to serve as the electrical interface between the supply, the control system, and the motor on a motion axis.

The drive can deliver a continuous phase current of 48 Arms, with short peak demand supported up to 96 Arms. These current levels correspond to a maximum apparent input power of 35 kVA, which supports rapid acceleration and high transient torque demand. The permissible mains range is 208 to 480 V, and internal IGBTs switch at 8 kHz to shape the motor voltage waveform. The resulting output current form factor is 1.01, indicating low distortion in the delivered current. A residual voltage drop of 6 V across the power stage must be considered when calculating motor back-EMF margin, and the heat sink dissipates 24 W when the internal fan controller card is disabled.

The housing measures 386 mm in height, 190 mm in width, and 244 mm in depth, and it weighs 10.4 kg. Its size supports panel layouts where cabinet space is limited but a high-current servo axis is still required. Thermal management relies on a Coldplate interface that mounts the aluminum base directly to a cabinet cooler, while conformal-coated circuit boards help protect the electronics from airborne contaminants. Functional safety is provided by a dual-channel STO input that removes drive power without relays. Maximum acoustic emission is 62 dB(A), and the fan controller expansion slot adds flexibility for system configuration.