Product Description:

The S77202-2CF2-PA is a Kollmorgen servo drive in the S700 Servo Drives series. It converts three-phase industrial power into regulated motor currents, providing precise velocity, torque, and position control for automated assembly lines, conveyors, and test rigs. With digital and analog command channels, the unit sits between the motion controller and the actuator, synchronizing axis movement with the rest of the machine.

For power interfacing, the drive accepts a three-phase input between 208 to 480 V and is safeguarded by an 80 A line fuse that limits fault energy. Its IGBT output bridge delivers continuous motor phase current of 72 Arms, letting mid-frame servomotors reach full torque without derating. Apparent power demand can climb to 50 kVA, which is useful when sizing circuit breakers and supply transformers. The bridge is modulated at 8 kHz, a switching frequency that shortens current loop delay and minimizes torque ripple. A residual voltage drop of 6 V across the power stage keeps the DC bus close to the rectified mains potential.

Two ±10 V command inputs present 20 kΩ impedance and are sampled every 62.5 µs, while the monitor output resolves 0.38 mV for fine feedback. The integrated CANopen port can be terminated with a 120 Ω resistor to maintain signal integrity on long network runs. Under continuous 400 V operation, the heat sink sheds 1005 W, and an expansion fan controller starts cooling when the internal sensor reaches 65 °C. Even with active airflow, airborne sound is limited to 68 dB(A). The housing carries an IP20 ingress rating, weighs 13 kg, and measures 505 mm tall with connectors, so it is intended for protected cabinet installation. Dual-channel STO circuits provide safe torque off, and standard PCBs maintain electrical clearance under the stated voltage range.