Description
Kollmorgen SR03550
Technical Specifications
| Parameter Category | Specific Specification |
|---|---|
| Manufacturer | Kollmorgen (Danaher Motion) |
| Product Family | SERVOSTAR S-Series |
| Power Supply | 1/3-Phase, 230 VAC nominal |
| Input Current | 6.5/3.8 Amps (1-phase/3-phase) |
| Input Power | 1.5 kVA |
| Output Voltage | 3 x 230 VAC (variable frequency) |
| Output Current | 3.5 Amps RMS continuous per phase |
| Peak Output Current | 10.5 Amps RMS (2 seconds) |
| Output Power | 1.1 kVA continuous |
| PWM Frequency | 8 kHz |
| Control Modes | Torque, velocity, position |
| Command Interface | ±10V analog, step/direction |
| Feedback | Resolver, incremental encoder |
| I/O | 3 digital inputs, 2 digital outputs |
| Protection | Overcurrent, overvoltage, undervoltage, overtemperature |
| Operating Temperature | 0°C to +40°C |
| Storage Temperature | -25°C to +55°C |
| Protection Class | IP20 |
Key Features
- Compact and Economical: The S-series provides essential servo functionality in a compact, cost-optimized package
- Resolver Feedback Standard: Built-in resolver-to-digital converter enables direct connection to resolver-equipped motors without external modules
- Flexible Power Input: Accepts both single-phase and three-phase 230 VAC input, simplifying installation in facilities without three-phase power
- Simple Commissioning: Auto-tune function and straightforward parameter structure reduce setup time
- Reliable Performance: Proven drive platform with robust protection features ensures long service life in industrial environments
- Basic I/O Integration: Standard digital I/O provides limit switch, home, and brake control functionality
Application Scenarios
- Small machine tools: Powers benchtop mills, small lathes, and drill presses with servo-controlled axes
- Conveyor systems: Controls variable-speed conveyor drives with precise speed regulation
- Winding equipment: Maintains constant tension in wire, cable, and film winding applications
- Feeding mechanisms: Drives material feed rollers in stamping, cutting, and forming equipment
- Positioning tables: Controls X-Y positioning stages in inspection and assembly equipment
- Pump and fan control: Provides variable-speed drive for process pumps and ventilation fans with servo precision
- Small robotics: Powers educational and light industrial robot arms and gantries
Performance Parameters The S-series achieves a speed loop bandwidth of 400 Hz, suitable for general positioning and velocity control applications. The current loop bandwidth is 1.5 kHz, providing adequate torque response for most loads. The 8 kHz PWM frequency balances motor performance with audible noise. Position loop update rate is 1 millisecond. The drive supports S-curve acceleration profiles with programmable jerk limitation. Velocity ripple is typically less than 0.5% of commanded speed at rated conditions.
Material Composition The drive enclosure is constructed from aluminum with a painted finish. Power semiconductors are compact IPM (Intelligent Power Module) packages integrating IGBT and drive circuitry. The control board uses a 4-layer PCB with mixed surface-mount and through-hole components. DC bus capacitors are compact snap-in electrolytic types. The heat sink is an extruded aluminum profile with moderate fin density. Front panel is plastic with LED indicators and optional display cutout.
Structural Characteristics The drive features a compact rectangular enclosure designed for DIN rail or panel mounting. Power terminals are screw-type spring clamps suitable for wire up to 2.5 mm². Control connectors are pluggable terminal blocks for easy wiring and maintenance. The front panel includes three status LEDs (power, run, fault) and a potentiometer for analog gain adjustment. Internal layout places the power stage at the bottom with the control board above, separated by a plastic insulator. Cooling is by natural convection with optional fan kit for high ambient temperatures.
