Product Description:

The S7480A-DNF2-S4 is a servo drive produced by Kollmorgen as part of the S700 Servo Drives series. Designed for integration into multi-axis automation systems, this unit conditions three-phase power and delivers regulated current to synchronous or induction servomotors, enabling position, velocity, and torque control in machinery such as packaging lines, pick-and-place gantries, and printing equipment. The unit is intended for coordinated motion where the drive must respond quickly to changing load and command conditions during continuous industrial operation. DeviceNet communication permits networks of up to 64 nodes, so multiple axes can be coordinated through a single fieldbus segment.

The drive accepts a three-phase input within a wide range of 208 to 480 V, allowing deployment on most industrial mains. At a rated input demand of 35 kVA, it supplies a continuous phase output of 48 Arms, while transient loads can be covered by a peak capacity of 96 Arms. This output range supports demanding acceleration and deceleration cycles on servo axes that need stable current delivery. A residual voltage drop of 6 V across the internal power stage preserves bus voltage for dynamic braking. Functional safety is addressed with seven programmable safety inputs, four programmable safety outputs, and the integrated dual-channel STO function, which removes torque-producing energy in accordance with SIL-rated stop requirements. Thermal management is handled by a coldplate structure that transfers losses to an external panel, and heat-sink airflow is supervised by an onboard fan controller card that starts the fan when the base reaches 80 °C.

The assembly dissipates 24 W in idle mode and is permitted to run while the coldplate temperature remains below 75 °C. Conformal coating on all PCBs shields the electronics from moisture and contaminants, matching the option that combines coldplate operation with coated boards. Because heat is transferred through the mounting surface rather than a large internal heat sink, cabinet airflow demands remain more manageable. The housing measures 453 mm in height, 190 mm in width, and 174 mm in depth. The overall mass is 10.4 kg, allowing panel mounting without heavy structural reinforcement.