S7720F-PNF2-S3 Kollmorgen
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The Kollmorgen S7720F-PNF2-S3 is a servo drive from the S700 Servo Drives series, featuring a rated current of 72 Arms and an input power of 50 kVA. It is equipped with a controlled fan cooling option, a dual channel STO safety feature rated at SIL CL3 / PLe, and supports PROFINET RT networking with dual RJ45 ports. The drive weighs 13 kg and measures 386 mm in height, 190 mm in width, and 244 mm in depth.
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Product Description:
The S7720F-PNF2-S3 is a Kollmorgen servo drive in the S700 Servo Drives series. It is designed to regulate torque, speed, and position for matched synchronous motors used in industrial automation lines, packaging machines, and material-handling cells. By converting three-phase mains power into precisely modulated output, the unit forms the core of a closed-loop axis that demands fast response and integrated functional safety. This makes it suitable for indexing axes, synchronized conveyors, and transfer stations that rely on short settling times after speed changes.
The drive supplies a continuous output of 72 Arms while drawing up to 50 kVA from a three-phase source rated at 208–480 V. Power devices switch at 8 kHz, balancing dynamic control with manageable heat generation. Communication to the control layer occurs over PROFINET RT, and field wiring is simplified by dual RJ45 ports that support line or ring network topologies. Cooling is handled by a controlled fan supervised through an internal fan-controller expansion card, allowing temperature-driven airflow adjustment. Dual-channel STO circuitry disables energy to the motor windings when the safety system is triggered, eliminating torque without contactors during lockout procedures.
The safety architecture attains SIL CL3 / PLe, allowing use on machines subject to stringent risk assessments. Acoustic output is limited to 68 dB(A), supporting installation in operator-accessible cabinets. The housing measures 386 mm tall, 190 mm wide, and 244 mm deep, and it weighs 13 kg for vertical panel mounting. The drive is available with coated or standard printed-circuit assemblies to suit ambient humidity and airborne contaminant levels. Standby losses remain at 24 W when the output stage is disabled, which helps reduce wasted energy during idle periods. Its enclosure size also helps preserve cabinet space in multi-axis layouts.
Frequently Asked Questions about S7720F-PNF2-S3:
Q: What is the rated output current of the S7720F-PNF2-S3 servo drive?
A: The S7720F-PNF2-S3 servo drive is rated for 72 Arms of continuous output current.
Q: What type of cooling does the S7720F-PNF2-S3 utilize?
A: This drive operates with a controlled fan cooling system to maintain optimal thermal conditions.
Q: How is network connectivity established on the S7720F-PNF2-S3 servo drive?
A: Dual RJ45 ports are provided on the S7720F-PNF2-S3 for PROFINET RT networking.
Q: What safety standards does the S7720F-PNF2-S3 comply with?
A: The S7720F-PNF2-S3 achieves a safety level of SIL CL3 and PLe.
Q: What voltage range can the S7720F-PNF2-S3 servo drive accept?
A: This model supports input voltages from 208 to 480 volts for flexible integration.
