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Kollmorgen PRD-0051AMPD-Y0
Introduction: The Kollmorgen VRDM (Variable Rate Digital Motion) PRD-0051AMPD-Y0 is a high-current brushless AC servo amplifier. “0051” denotes the 51 A continuous current class, “AMPD” indicates AC mains input with integrated supply and regen stage, and “Y0” is a connector/firmware variant. The Kollmorgen VRDM family targets demanding industrial motion axes.
Detailed content
Technical Specifications:
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Continuous Output Current: 51 A RMS/phase (80 A class peak in sibling VRDM units)
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Input Voltage: 230 VAC or 400 VAC ±10%, 3-phase, 50/60 Hz
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DC Bus: 310–560 VDC
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Control Modes: Torque, velocity, position
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Feedback: Resolver, incremental encoder, SinCos 1 Vpp, EnDat, BiSS
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Switching Frequency: 8 kHz
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Protection: Over-current, over-voltage, over-temperature, short-circuit, ground fault
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Cooling: Forced air or backplate conduction
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Dimensions: 80 × 398 × 200 mm; Weight: ~6 kg
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EMC: Class A
Features: Kollmorgen DSP vector control, auto-commissioning, integrated brake output, removable power terminals, front-panel status LEDs.
Applications: Kollmorgen VRDM amplifiers serve CNC axis drives, converting machinery, and retrofit of legacy Kollmorgen 6SM/DBL motors.
Construction & Working Principle: Kollmorgen aluminum chassis, IGBT PWM bridge, isolated 24 V logic, closed-loop field-oriented control of a 3-phase PM motor.
Installation & Notes: Mount the Kollmorgen unit vertically on panel with ≥50 mm top/bottom clearance; terminate motor shield at amplifier; derate above 45 °C ambient.
