Description
Kollmorgen S712-FN3
Technical Specifications
- Product Family: SERVOSTAR S700 Series
- Size Class: S712
- Device Designation: S712-FN3
- Product Category: Digital servo amplifier
- Rated Line Power (S1): 9 kVA
- Rated Line Voltage: 3×208 V (−10%) to 3×480 V (+10%)
- Rated DC Bus Voltage: 290–675 VDC
- Rated Output Current: 12 Arms at 3×208 V / 3×230 V; 12 Arms at 3×400 V; 12 Arms at 3×480 V
- Peak Output Current: 24 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 PosI/O, PosI/O-Monitor, or other expansion cards
- 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
- Very Heavy-Duty Automation: Large-scale conveyor systems, heavy material handling, and high-throughput assembly lines
- Machine Tools: High-power feed axes, spindle drives, and multi-axis CNC systems
- Industrial Robotics: Heavy-duty robotic arms, gantry systems, and palletizing robots
- Metal Forming: Press feeds, shearing machines, and bending equipment
- Woodworking and Plastics: Router drives, extruder feeds, and injection molding actuators
Performance Parameters
- Drive Type: Digital servo amplifier with IGBT power stage
- Control Modes: Torque, speed, and position control
- Switching Frequency: High-frequency PWM for low acoustic noise
- Protection Features: Overcurrent, overvoltage, undervoltage, overtemperature, phase loss, short circuit, and soft start
- Motor Overload Protection: Solid-state protection at 130% of full load current
- Short Circuit Rating: Suitable for circuits delivering not more than 42 kA rms symmetrical amperes at max 480 VAC
Material Composition
- Durable metal enclosure housing integrated power electronics (IGBT module with floating current measurement), control circuitry, EMC filter, heat dissipation components, and F2 controlled fan option card in Slot 3
Structural Features
- Form Factor: Compact single-channel servo amplifier
- Mounting: Panel mounting inside control cabinets
- Expansion Slots: Slot 1 (empty), Slot 2 (available for user expansion), Slot 3 (F2 controlled fan card installed)
- Connectors: Power input/output terminals, motor connection terminals, feedback connector, STO inputs, and fieldbus interface
- Shield Connections: All shield connections made directly to the amplifier
Working Principle
The S712-FN3 receives three-phase AC power, rectifies it to a DC bus voltage, and drives the connected servo motor through its IGBT power stage. The drive uses closed-loop feedback control for precise torque, speed, and position regulation. The F2 option card in Slot 3 monitors internal temperature, heat sink temperature, and brake resistor power dissipation to dynamically control the cooling fan speed, optimizing the balance between thermal management and acoustic noise.
Installation Requirements
- Mount inside a closed switchgear cabinet free from conductive or corrosive materials
- Use non-painted (conductive) mounting plates for proper EMC grounding
- Ensure adequate clearance above and below the amplifier for unimpeded ventilation
- Keep the ambient temperature within the permitted range (0°C to 40°C, up to 45°C with derating)
- Connect power supply with appropriate fusing
- Use 60°C or 75°C copper wire only; use Class 1 wire only
- Use shielded cables for motor and feedback connections
- Do not mount devices producing strong magnetic fields directly beside the amplifier
Usage Notes
- The F2 option card is factory-installed in Slot 3 and cannot be added later; verify this configuration at ordering
- Slot 2 is available for additional expansion cards such as PosI/O or PosI/O-Monitor
- Monitor the fan operation through the LED display and drive parameters
- Run the autotuning procedure after mechanical installation
- If STO is not required, connect STO1-ENABLE and STO2-ENABLE directly to +24 VDC
- Do not disconnect motor or power cables while the drive is energized
- Use the MMC storage card to back up parameters before firmware updates
- Consult the S712 instruction manual for detailed fault codes and parameter settings
