S77202-NANA-S4 Kollmorgen
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The S77202-NANA-S4 is a servo drive manufactured by Kollmorgen and is part of the S700 Servo Drives series. It features a rated input power of 50 kVA, voltage rating from 208 to 480 V, and a rated current of 72 Arms, with a peak current of 140 Arms for up to 5 seconds. The drive has EtherCAT and CANopen communication onboard, includes dual channel STO safety capability, measures 386 mm high by 190 mm wide by 244 mm deep, and weighs 13 kg.
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Product Description:
The S77202-NANA-S4 is a servo drive manufactured by Kollmorgen within the S700 Servo Drives series. As a closed-loop power amplifier, it converts the plant AC supply into controlled three-phase output that commands the torque, speed, or position of a connected servomotor. The unit targets general-purpose automation, letting machine builders integrate fast axis control directly in the cabinet while relieving the PLC of high-bandwidth regulation tasks. Its control platform supports standardized fieldbus mapping and built-in safety so motion modules can fit modern machine requirements.
The power section accepts a three-phase mains window of 208 to 480 V, allowing the same hardware to serve both low- and high-voltage installations. During continuous duty it provides up to 72 Arms, a limit that affects conductor sizing and cabinet cooling. Short bursts can rise to 140 Arms for as long as 5 s, giving margin for rapid indexing or inertia compensation without oversizing the motor. Current is modulated at an output stage frequency of 8 kHz; this switching rate minimizes torque ripple while keeping semiconductor losses within acceptable limits. Functional safety is integrated by a dual-channel STO circuit that disables the gate drivers through two independent paths and supports stop category 0 behavior without external contactors.
Physical installation is straightforward because the housing measures 190 mm wide, 386 mm high, and 244 mm deep. With a mass of 13 kg, the drive is relatively easy to mount, and operational sound pressure remains below 68 dB(A) to reduce noise exposure around the machine. EtherCAT and CANopen interfaces are present on the base board, eliminating the need for an expansion card and simplifying network wiring. Standard PCBs, a 50 kVA input rating, and built-in line filtering allow the drive to maintain full performance on typical factory power buses.
