Product Description:

The S7720C-PBF2-F2 is a servo drive manufactured by Kollmorgen for the S700 Servo Drives series. It serves as the power interface between industrial three-phase mains and synchronous or induction motors. The drive regulates current and voltage so automated axes can follow commanded position, velocity, and torque profiles in production machinery and test rigs. This arrangement supports precise closed-loop motion in automated equipment.

Electrically, the unit draws up to 50 kVA of apparent power and delivers a continuous output of 72 Arms. Its input stage accepts supplies from 208 to 480 V, so it can operate on common 230 V and 460 V networks. This range supports use across several standard industrial supply classes. The drive uses pulse-width modulation at 8 kHz, which balances dynamic response with motor acoustic noise. Thermal loss at nominal load reaches 1005 W and is transferred to the heat sink, while an optional coldplate can route this heat to an external surface. Current distortion is limited by a 1.01 form factor, and the DC bus has only a 6 V residual drop to help preserve servo stiffness. The enclosure is 386 mm high, 190 mm wide, and 244 mm deep, so panel layouts should allow adequate clearance for installation and airflow. A fan-controller expansion card starts cooling fans when the internal temperature reaches 65 °C, and up to 30 on-off cycles per hour are permitted. Two 9-pin Sub-D ports provide PROFIBUS communication for fieldbus integration.

Safety is handled by an integrated dual-channel STO circuit that removes motor torque through two independent paths during emergency stops. Maximum acoustic output remains below 68 dB(A), limiting noise around the cabinet. When the coldplate option is used, standby thermal dissipation is only 24 W, which helps reduce enclosure heat while the drive is disabled. This helps keep surrounding panels cooler during idle periods. The assembly weighs 13 kg, allowing it to mount on standard 19-inch plates without additional structural support.