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Kollmorgen PSR4/5A-220

  • Product Name: Power Supply / Regenerative Unit (PSR Series)
  • Product Introduction: The PSR4/5A-220​ is a power supply module​ or regenerative power stage​ rated 4/5 A, 220 VAC​ input, part of Kollmorgen’s drive support modules (often paired with S300/S400 or BDS5).
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Detailed content

  • Technical Specifications:
    • Input Voltage: 220 VAC (single or three-phase)
    • Output Current: 4 – 5 A continuous
    • DC Output: Matches drive bus (approx. 310 VDC)
    • Regenerative Capacity: Internal or external resistor control
  • Functional Features:
    • Provides stabilized DC link for drives.
    • Manages regenerative energy from decelerating motors.
    • Over-voltage/current protection.
  • Application Scenarios: Supporting multi-axis servo systems, preventing overvoltage trips during braking.
  • Performance Parameters:
    • Efficiency: >90%
    • Ripple: < 5% on DC bus.
  • Material & Structural Features:
    • Enclosed metal case with fan or convection cooling.
    • Screw terminals for AC in / DC out.
  • Working Principle:
    • Rectifies AC to DC; monitors bus voltage and activates brake chopper when regeneration exceeds threshold.
  • Installation Requirements:
    • Securely grounded.
    • Place close to drives to minimize bus cable inductance.
  • Usage Precautions:
    • Match regen resistor ohm/watt rating exactly.
    • Never short DC bus terminals.

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