Kollmorgen SR30200

Product Overview The SR30200 is a digital servo drive from Kollmorgen’s SERVOSTAR S200 series, positioned between the 20A and 55A models. This drive operates from 230 VAC three-phase power input and delivers 30 Amps continuous output current. The “SR” prefix indicates standard drive with resolver feedback, “30” specifies the 30A current rating, “200” denotes the S200 series. This drive is designed for medium to high-power applications requiring more current than the SR20200 but less than the SR55200, offering an optimal power point for many industrial machines.

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Description

Kollmorgen SR30200

Technical Specifications

Parameter Category Specific Specification
Manufacturer Kollmorgen (Danaher Motion)
Product Family SERVOSTAR S200 Series
Power Supply 3-Phase, 230 VAC nominal
Input Current 36 Amps per phase
Input Power 14 kVA
Output Voltage 3 x 230 VAC (variable frequency)
Output Current 30.0 Amps RMS continuous per phase
Peak Output Current 60.0 Amps RMS (2 seconds)
Output Power 12 kVA continuous
PWM Frequency 8 kHz
Control Modes Torque, velocity, position
Command Interface ±10V analog, step/direction, encoder following
Feedback Resolver, incremental encoder, SFD
I/O 4 digital inputs, 3 digital outputs, 1 analog output
Protection Overcurrent, overvoltage, undervoltage, overtemperature, phase loss, ground fault
Operating Temperature 0°C to +40°C
Storage Temperature -25°C to +55°C
Protection Class IP20

Key Features

  • Balanced Power Capacity: 30A continuous output with 2:1 peak capability drives servo motors up to approximately 7.5 kW at 230 VAC
  • Proven S200 Platform: Benefits from the established S200 series design with robust protection and reliable performance
  • Flexible Feedback Support: Standard resolver with optional encoder and SFD compatibility for various motor configurations
  • Comprehensive Machine Integration: Expanded I/O and analog monitoring outputs support complex machine control requirements
  • Efficient Thermal Design: Optimized heat sink and cooling system maintains safe operating temperatures under continuous duty
  • Regeneration Management: Effective regeneration monitoring with external braking resistor support for high-inertia applications

Application Scenarios

  • Medium to large CNC machines: Drives axis motors in horizontal machining centers, large lathes, and multi-axis grinders
  • Plastic machinery: Powers injection, clamp, and eject servo systems in medium-tonnage all-electric machines
  • Metal cutting and forming: Drives band saws, shears, press brakes, and roll forming equipment
  • Automated material handling: Controls palletizing robots, gantry cranes, and automated storage/retrieval systems
  • Paper and film processing: Drives calendar stacks, coating heads, and slitting/rewinding systems
  • Textile machinery: Controls large weaving machines, dyeing equipment, and finishing lines
  • Food processing: Powers mixing, extrusion, and packaging equipment with servo precision
  • Renewable energy: Drives positioning and tracking systems in solar panel manufacturing

Performance Parameters The SR30200 maintains the S200 series performance characteristics with scaled power capability. The speed loop bandwidth is 800 Hz with responsive velocity control. The current loop bandwidth is 3-5 kHz ensuring smooth torque delivery even at 30A levels. The 8 kHz PWM frequency provides good current waveform quality with acceptable audible noise. Position loop update rate is 500 microseconds. The drive supports velocity and acceleration feedforward for contouring accuracy. Current regulation linearity is within 1% across the full 0-30A range.

Material Composition The drive enclosure is constructed from heavy-gauge steel with industrial-grade powder coating. Power semiconductors are high-current IGBT modules mounted on aluminum oxide ceramic insulators. The control board uses a 6-layer PCB with industrial-grade surface-mount and through-hole components. DC bus capacitors are multiple large-can electrolytic types in parallel configuration. The heat sink is a substantial extruded aluminum profile with optimized fin geometry for forced-air cooling. Internal power distribution uses copper bus bars with appropriate current ratings.

Structural Characteristics The drive features a robust rectangular enclosure larger than the SR20200 but more compact than the SR55200. Power terminals are high-capacity screw-type blocks accepting wire up to 16 mm². Control connectors are heavy-duty pluggable terminal blocks. The front panel includes a 7-segment display for fault codes and parameter display, plus comprehensive status LEDs. An integral cooling fan provides forced convection through the heat sink. The base includes mounting feet with slotted holes for panel attachment. Internal layout separates power and control sections with EMI shielding.

Working Principle Three-phase 230 VAC input is rectified to 325 VDC bus voltage by a three-phase diode bridge. The DC bus is filtered by parallel electrolytic capacitors. The IGBT inverter stage generates variable-frequency three-phase output capable of 30A continuous operation. The DSP control system implements field-oriented vector control. Resolver feedback is converted to digital position by RDC converter. The velocity loop processes analog or step/direction commands against actual velocity. The current loop regulates phase currents through PWM duty cycle control. The drive includes comprehensive protection and monitoring of all operating parameters.