S7720F-PNF2-PA Kollmorgen
Wake Industrial LLC is not an authorized distributor of this product.
The Kollmorgen S7720F-PNF2-PA is part of the S700 Servo Drives series and is a servo drive with a rated input power of 50 kVA and a voltage rating of 208 to 480 Volts. It features a continuous brake power of 8 kW, peak output current of 140 Arms for up to 5 seconds, and a rated current of 72 Arms. This drive includes a dual channel STO capability, Profinet interface with dual RJ45, and coated PCBs, with a weight of 13 kilograms.
Internal Product Review
The S7720F-PNF2-PA is a Kollmorgen S700 servo drive with a 208...480V rating and a dual RJ45 PROFINET interface. Rated current of 72 Arms and peak output current of 140 Arms give the drive strong headroom for demanding motion control. Dual-channel STO and coated PCBs make the unit especially appealing for safety-focused industrial installations.
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Product Description:
The S7720F-PNF2-PA is a Kollmorgen servo drive in the S700 Servo Drives series. It converts factory line power to a regulated, pulse-width-modulated output that runs brushless or induction motors in packaging, printing, and material-handling machines with controlled speed and torque. Integrated handling for external brake resistors and internal brake power lets the unit dissipate kinetic energy without extra hardware, so axes decelerate in a controlled manner while remaining within thermal limits.
The drive accepts a line supply of 208–480 V and delivers a continuous phase current of 72 Arms. For rapid acceleration, it can source up to 140 Arms, and it supports 8 kW of continuous brake power when paired with a 10 Ω external resistor. Pulse generation occurs at an 8 kHz switching frequency, striking a balance between acoustic noise and motor ripple. Dual-channel safety inputs satisfy the IEC 61800-5-2 stop requirement through a dual-channel STO circuit, allowing removal of torque-producing energy without cutting line power. Control and diagnostics are carried over a PROFINET interface with dual RJ45 ports. Coated printed circuit boards resist moisture and airborne contaminants, and a dedicated fan-controller expansion card regulates airflow over the heat sink.
The unit can sustain its peak output for 5 s before reverting to its nominal envelope, and the power stage sheds heat at 1005 W when supplied from a 400 V network, a value used to size cabinet ventilation. Overall dimensions are 386 mm in height, 190 mm in width, and 244 mm in depth, with a mass of 13 kg, permitting side-by-side mounting in crowded panels. The factory-applied coating is confirmed by the coated PCB finish entry. When input demand rises toward 50 kVA, the drive’s fan controller increases speed to maintain safe internal temperatures.
