Product Description:

The S7720F-NANA-F2 is a Kollmorgen drive from the S700 Servo Drives series engineered to regulate synchronous or asynchronous servomotors in automated machinery. As a servo drive, it modulates power to the motor according to position and velocity commands, forming the interface between higher-level motion controllers and machine actuators. This arrangement lets the unit translate controller commands into regulated motor current for positioning, speed control, and coordinated axis movement. Its compact cabinet profile of 190 mm wide, 244 mm deep, and 386 mm high helps multi-axis systems fit into existing panels while maintaining the airflow clearance needed around the power section.

This model handles a continuous phase current of 72 Arms and accepts three-phase mains in the 208–480 V range, drawing up to 50 kVA under rated load. Internally, IGBT switching occurs at 8 kHz; at that carrier frequency, the heat sink must dissipate 1005 W when the DC link sits at 400 V. A residual voltage drop of 6 V across the output stage and a form-factor current ratio of 1.01 indicate low conduction losses and minimal waveform distortion. The unit can be switched up to 30 cycles per hour. EtherCAT and CANopen are already available on the base hardware, so no expansion card is required for those networks.

The drive’s integrated safety layer offers dual-channel STO, eliminating torque within 10 ms when a safe-off command is issued. This function supports rapid torque removal through the built-in safety circuit without requiring a separate control path in the drive body. Acoustic emissions are limited to 68 dB(A), supporting placement near operator stations. PCB coating provides extra moisture resistance in harsh environments, and an optional brake resistor can be panel-mounted with overload supervision by the drive. Overall mass is 13 kg, which supports straightforward panel mounting. Onboard bleed circuitry assists routine switching and helps manage heat inside the cabinet.