Kollmorgen S724-FN3

Kollmorgen S724-FN3

Product Introduction
The S724-FN3 is a high-performance digital servo amplifier in the Kollmorgen SERVOSTAR S700 family, belonging to the S724 size class. The “FN” designation indicates the standard European/international configuration with CANopen and EtherCAT onboard, dual-channel STO, and 208–480 V mains voltage. The “3” suffix indicates that the F2 controlled fan option card is factory-installed in Slot 3. This model provides the full S724 feature set with the added benefit of noise-reduced cooling.

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Description

Kollmorgen S724-FN3

Technical Specifications

  • Product Family: SERVOSTAR S700 Series
  • Size Class: S724
  • Device Designation: S724-FN3
  • Product Category: Digital servo amplifier
  • Rated Line Power (S1): 18 kVA
  • Rated Line Voltage: 3×208 V (−10%) to 3×480 V (+10%)
  • Rated DC Bus Voltage: 290–675 VDC
  • Rated Output Current: 24 Arms at 3×208 V / 3×230 V; 24 Arms at 3×400 V; 24 Arms at 3×480 V
  • Peak Output Current: 48 Arms
  • Safety: Dual-channel STO (Safe Torque Off)
  • Onboard Communication: CANopen and EtherCAT
  • Expansion Card: F2 controlled fan option installed in Slot 3
  • Certifications: CE, UL, TÜV

Functional Features

  • Controlled Fan (F2 Option in Slot 3): Fan switches on/off or runs at 50% speed based on heat sink temperature and brake power, reducing average noise emission
  • Fan Switching Thresholds: Fan off below 55°C heat sink / 60°C internal / 20 W brake power; fan at 50% around 58°C / 65°C / 30 W; fan fully on above 65°C / 75°C / 45 W
  • Slot 2 Availability: Slot 2 remains free for other expansion cards such as PosI/O or PosI/O-Monitor
  • Multi-Loop Control: High-speed current, velocity, and position control loops
  • Autotuning: Automatic PID parameter and feedforward adjustment
  • Cogging Suppression: Minimized motor cogging for smooth operation
  • Macro Programming: IEC 61131-3 structured text with 128 KB code memory
  • Multi-Feedback Support: Up to three simultaneous feedback systems
  • Dual-Channel STO: SIL2/PLd compliant safe torque off
  • Dynamic Braking: Integrated braking circuit with standard internal braking resistor
  • MMC Storage Card Slot: Parameter and firmware backup

Application Scenarios

  • Noise-Sensitive Environments: Laboratories, cleanrooms, medical facilities, and office-adjacent production areas
  • Multi-Function Systems: Applications requiring both controlled fan noise reduction and additional expansion cards in Slot 2
  • Heavy-Duty Automation: Large-scale conveyor systems, material handling, and high-throughput assembly lines
  • Machine Tools: Feed axes, spindle drives, and multi-axis CNC systems

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