Product Description:

The S7720C-NANA-PM is a servo drive manufactured by Kollmorgen and supplied as part of the S700 Servo Drives series. This unit converts fixed-frequency plant power into the precision-modulated output required by brushless servo motors used in packaging lines, pick-and-place axes, and similar motion tasks. It mounts inside a control cabinet and acts as the central power stage in an automation cell, coordinating velocity and torque commands issued by a PLC or motion controller.

The drive accepts a three-phase mains input of 208–480 V and delivers a continuous output of 72 Arms, with overload capability to 144 Arms for short acceleration bursts. Heat produced at those operating limits is removed by forced air cooling, which relies on unobstructed vertical mounting inside the panel. A cabinet-friendly IP20 protection rating makes the drive touch-safe but requires placement behind a door. Three-phase wiring balances load on the supply, and internal sensors supervise heatsink temperature to prevent thermal trips. Because no liquid interface is needed, installation is limited to securing the unit on DIN rails and routing power, motor, and encoder leads.

Control electronics are powered from a dedicated 24 VDC feed, allowing the logic to remain active during mains isolation for parameter retention and network diagnostics. Motion commands reach the drive through onboard EtherCAT and CANopen ports, eliminating the need for an expansion card and preserving cabinet space. The power stage employs an IGBT module for fast switching and low loss, while safety is handled by a dual-channel STO function that removes torque without external contactors. Compliance with Overvoltage Category III permits connection close to distribution transformers, and a coldplate option is offered for applications that favor conduction cooling over airflow.