S71202-NAF2PM Kollmorgen
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The S71202-NAF2PM is a servo drive manufactured by Kollmorgen as part of the S700 Servo Drives series. It supports a voltage rating of 208 to 480 volts and handles a continuous output current of 12 Arms, with a peak output current of 24 Arms for up to 2 seconds. The drive features a three-phase AC power source, controlled fan cooling, and dual channel STO safety capability.
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Product Description:
The S71202-NAF2PM servo drive is produced by Kollmorgen as part of the S700 Servo Drives series. It regulates the current and voltage applied to industrial servomotors, enabling precise position, speed, and torque control in automated production lines. The unit supports three-phase AC supplies and integrates safety, power electronics, and communication in a single enclosure, allowing tightly synchronized multi-axis systems to operate without external interface modules. The hardware platform also supports motion tasks such as pick-and-place operations, winding, and conveyor indexing, where fast dynamic response and accurate feedback are critical.
During continuous operation, the drive delivers a phase current of 12 A RMS per phase, matching its rated value and providing steady torque generation for the connected motor. The input section accepts three-phase mains between 208–480 V at a utility frequency of 50/60 Hz, allowing the same model to be wired into North American or international panels. Internal power electronics can transfer up to 9 kVA to the motor terminals, while heat is removed by a controlled fan assembly. At idle, quiescent dissipation is 20 W, rising to 70 W under full electrical load, which helps with ventilation planning. A standard PCB option and the PosI/O expansion card provide additional digital and analog channels for encoder emulation, registration sensors, and fast process interlocks.
For transient demands such as rapid acceleration, the drive supplies a peak current of 24 A RMS per phase for up to 2 seconds before returning to its continuous-current limit. Functional safety is incorporated through a dual-channel STO circuit that removes pulse power from the motor without affecting fieldbus communication. The aluminum housing is 70 mm wide, 345 mm high, and 243 mm deep, allowing increased axis density in standard control cabinets. Its narrow profile helps conserve horizontal panel space while retaining the depth needed for internal power and cooling components. The drive has a total mass of 4.4 kg, which simplifies panel installation and permits hinged-door mounting when appropriate.
