S7120S-NAPMNA Kollmorgen
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The Kollmorgen S7120S-NAPMNA is a servo drive in the S700 Servo Drives series and has a continuous output power of 9 kVA with a rated current of 12 Arms. It supports EtherCAT and CANopen onboard, features dual channel STO capability, and has peak output current of 30 Arms for up to 2 seconds. This unit measures 345 mm in height, 70 mm in width, 243 mm in depth, and weighs 4.4 kg.
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Product Description:
The S7120S-NAPMNA is a Kollmorgen servo drive in the S700 Servo Drives series. It regulates three-phase AC motors in packaging lines, pick-and-place gantries, and other motion axes that require precise torque and speed control. Built-in EtherCAT and CANopen interfaces support communication with distributed automation networks without an expansion card. This integrated connectivity reduces the amount of additional network hardware needed inside the control cabinet and provides access to drive commands and status data.
The drive delivers continuous apparent power of 9 kVA while sustaining a thermally rated current of 12 Arms. For rapid acceleration, it supplies a peak output current of 30 Arms for up to 2 s, supported by the Extended Ipeak option and a current form factor of 1.01. Mains connectivity covers a wide rating of 208 to 480 V AC, allowing the drive to operate with several common industrial supply voltages. The internal braking hardware dissipates 100 W through a 33 Ω element for loads with moderate regenerative energy. For larger inertia loads, an external 33 Ω resistor can absorb 1.5 kW continuously or 15 kW during pulse operation, with a maximum brake power of 1.75 kW at 400 V. Acoustic emission reaches no more than 65 dB(A), helping limit drive-generated noise inside industrial control cabinets.
The housing measures 70 mm wide and 345 mm high, with a depth of 243 mm. Its narrow profile supports dense, side-by-side installation in multi-axis control cabinets, while its 4.4 kg mass limits the load placed on the mounting panel. Functional safety is provided by a dual-channel STO circuit, which removes motor torque without depending on external power contactors. The two-channel arrangement supports safety systems that monitor separate shutdown paths before torque-producing current is disabled. During normal operation, the cabinet-mounted format keeps power, motor, communication, and safety connections centralized around the drive. The combination of integrated networking, controlled braking, and safe torque removal supports coordinated motion in medium-power servo applications.
