Product Description:

The S71202-NA servo amplifier is produced by Kollmorgen and belongs to the S700 Servo Drives series. It interfaces between a motion controller and a three-phase motor to regulate torque and velocity in automated cells, packaging equipment, and similar machinery. Its architecture combines onboard fieldbus communication with integrated safety functions, allowing the drive to fit into distributed control networks without requiring separate communication hardware.

During steady operation, the drive can deliver a maximum continuous output of 9 kVA while drawing a rated phase current of 12 Arms. IGBT switching occurs at 8 kHz, which helps limit current ripple without creating excessive thermal stress in the power stage. For regenerative braking, an external resistor can absorb up to 1.5 kW continuously, and the electronics release 160 W of heat at full load. A quiescent loss of 20 W keeps the internal logic active when the power stage is idle. The internal brake chopper can momentarily sustain 100 W, and peak current events are permitted for 2 seconds before foldback occurs. With a permitted DC-link voltage of 900 VDC, the unit can operate with bus levels commonly produced by active front ends.

Input power comes from a three-phase AC supply in a nominal range of 208 to 480 V. An integrated 33 Ω brake resistor provides initial energy absorption before the external load bank engages, and dual-channel STO adds certified Safe Torque Off protection. The enclosure uses standard PCBs and weighs 4.4 kg, while its 345 mm height, 70 mm width, and 243 mm depth support compact cabinet layouts. EtherCAT and CANopen ports are already present, which simplifies field wiring without requiring an expansion card. Heat leaves the housing through convection paths sized for normal operating losses, and the time-limited peak current window is monitored to protect the switching devices.