Product Description:

The S7720A-DNF2-S4 is a servo drive manufactured by Kollmorgen as part of the S700 Servo Drives series. This single-axis controller converts a three-phase AC supply into regulated motor power so that industrial machinery can perform precise, repeatable motion. By issuing torque, velocity, or position commands to a matched servomotor, the unit forms the closed-loop link between a higher-level PLC and the mechanical load. That role makes it suitable for assembly cells, pick-and-place heads, and material-handling equipment where consistent axis response is required during repetitive cycles.

Input power can be drawn from a three-phase mains range of 208–480 V, allowing the drive to operate on common industrial distribution systems at a standard frequency of 50/60 Hz. Under continuous duty, it supplies up to 72 Arms to the motor, while brief overloads are handled with a peak capability of 140 Arms for up to 5 s. The drive supports torque, velocity, position, and programmable positioning modes, and it can be configured through EN 61131 or Macro/BASIC routines stored internally. A DeviceNet interface exchanges setpoints and diagnostic data with the control network, while a controlled fan removes heat generated by the IGBTs. Cold-plate mounting and coated PCBs add thermal stability and help protect the electronics from contamination inside the cabinet.

The housing is sized for cabinet installation, measuring 190 mm wide, 386 mm high, and 244 mm deep when connectors are excluded. These proportions leave room for airflow channels around neighboring components and help the unit fit standard panel layouts. Safety integration is simplified by the built-in dual-channel STO function, which removes drive energy without shutting down the entire line. A dedicated fan-controller expansion card supervises cooling fan speed, supporting stable operation during demanding motion cycles and changing load conditions.