Description
Kollmorgen S7240S-NANANA
Technical Specifications:
- Input Voltage: 110–480 VAC, 1 or 3 phase, 50/60 Hz
- Continuous Output Current: 24A RMS per phase
- Current Loop Bandwidth: Up to 5 kHz
- Velocity Loop Bandwidth: Up to 400 Hz
- Switching Frequency: 8 kHz (up to 16 kHz available)
- Feedback Support: SFD3, Hiperface DSL, EnDat, BiSS, Resolver, SinCos, Incremental Encoder
- Communication: Onboard EtherCAT, CANopen; optional PROFINET, DeviceNet, PROFIBUS DP, SERCOS II, RS232
- Safety: Onboard STO (Safe Torque Off) as standard
- Certifications: CE, UL, TÜV
Functional Features:
- High continuous current output of 24A RMS for demanding torque applications
- Onboard EtherCAT and CANopen communication
- Single-cable feedback support for SFD3 and Hiperface DSL reducing wiring complexity
- MMC memory card slot for field parameter backup and firmware updates
- Auto-tuning function for rapid commissioning
- Cogging compensation for ultra-smooth low-speed motion
- Built-in IEC 61131 macro programming language
- Onboard EMC filter for reduced cabinet footprint
- Integrated power and brake resistor management
- Multiple control modes: torque, velocity, position, electronic gearing, pulse tracking, and motion tasks
Application Scenarios:
- Heavy-duty CNC machine tools
- Industrial robot joint drives
- Large-format printing presses
- Steel and metal processing equipment
- High-inertia load positioning systems
- Multi-axis coordinated motion systems
Performance Parameters:
- Speed Loop Refresh Rate: 62.5 μs (16 kHz)
- Position Loop Refresh Rate: 125 μs (8 kHz)
- Current Loop Refresh Rate: 0.67 μs (1.5 MHz)
- Position Resolution: 28-bit position loop
- Overload Capacity: Peak current for short-duration acceleration bursts
Material Composition:
- Housing: Heavy-duty aluminum chassis with extended heat sink
- Power Stage: High-current IGBT modules
- Control Board: DSP with FPGA for real-time processing
- Connectors: Industrial-grade high-current locking connectors
Structural Characteristics: Larger form factor compared to lower-current S700 models to accommodate the higher power dissipation. Panel-mount configuration with front-panel LED indicators, power connectors, motor connectors, feedback connectors, and communication ports.
Working Principle: The drive employs space vector modulation with advanced current control algorithms to deliver precise sinusoidal currents to the motor windings. The DSP continuously monitors motor position, velocity, and current through the feedback device, calculates the required corrective action through nested PID control loops, and adjusts the PWM duty cycle to maintain accurate torque, speed, or position control.
Installation Requirements:
- Install in a closed control cabinet with forced ventilation or cooling
- Maintain cabinet internal temperature below 40°C
- Use only copper conductors; wire cross-section per IEC 60204 standard
- Connect to a properly grounded three-phase industrial supply
- Ensure adequate heat dissipation clearance around the drive
- Verify supply network short-circuit current does not exceed 42 kA
Usage Notes:
- The “NANANA” designation indicates standard configuration with no custom options
- This high-current drive requires careful attention to cable sizing and thermal management
- Use the MMC card to create a backup of all parameters before making configuration changes
- The STO function must be properly integrated into the machine safety circuit
- Verify motor thermal ratings are compatible with the drive’s continuous current output
