Description
Kollmorgen S7240P-FN
Technical Specifications
- Product Family: SERVOSTAR S700 Series
- Size Class: S7240P
- Device Designation: S7240P-FN
- 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 Cards: None factory-installed (all slots available)
- Certifications: CE, UL, TÜV
Functional Features
- 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
- 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, and heat dissipation components
Structural Features
- Form Factor: Compact single-channel servo amplifier
- Mounting: Panel mounting inside control cabinets
- Expansion Slots: Slot 1, Slot 2, and Slot 3 all available for optional expansion cards
- 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 S7240P-FN 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.
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
- All expansion slots are available for user-installed cards
- 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 S7240P instruction manual for detailed fault codes and parameter settings
