Product Description:

Manufactured by Kollmorgen, the S7720C-EIF2-PA is classified as an S700 Servo Drive and belongs to the S700 Servo Drives series. The unit regulates three-phase servo motors in automated machinery, providing closed-loop velocity and torque control for packaging, material handling, and high-speed assembly lines. By translating plant-level AC power into precisely timed armature currents, it synchronizes motor motion with PLC commands and maintains stable positioning throughout duty cycles.

The drive supports 14 additional digital inputs and eight additional digital outputs for discrete machine coordination. Its analog interface offers 20 kΩ input impedance, 1.25 mV resolution, and a 62.5 µs update rate, allowing fine voltage sampling before current regulation. Analog commands are issued over ±10 V differential outputs that are refreshed every 250 µs, letting the controller steer external amplifiers or process loops. With a peak output capability of 140 Arms, the S700 stage can accelerate high-inertia loads without saturation. Voltage tolerance spans 208 to 480 V, so a single model covers North American and European mains. Internally, the current and speed control loops execute at the same interval, which minimizes phase lag between reference words and the measured shaft angle.

Bus transactions are aided by an addressing latency of 4 ms, ensuring command words reach the drive before each internal cycle finishes. The device provides a dual-channel STO circuit tied directly to the 24 V / 7 mA control input load. Continuous duty is handled at 72 Arms, while an analog output granularity of 0.38 mV supports tight motion profiles when the drive feeds external indexers. A cold-plate base dissipates heat into the machine frame, and the fan-controller expansion card activates a blower once internal temperature climbs to 65 °C. Transistor outputs can source 24 V / 500 mA to field sensors and actuators.