Kollmorgen 60WKS-M240 22-PB

Product Overview The 60WKS-M240 22-PB is a higher-power analog servo amplifier from the 60WKS-M240 product line. It delivers 22 Amps peak output current from a 240 VDC link, providing 3.75 kVA installed load capacity. This amplifier is designed for medium-duty applications requiring higher torque output from SM series brushless synchronous servo motors.

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Description

Kollmorgen 60WKS-M240 22-PB

Technical Specifications

  • Series: 60WKS Analog Servo Amplifier Series
  • Input Voltage: Three-phase 60 to 172 VAC, 50/60 Hz with plus or minus 10 percent tolerance
  • Rated DC-Link Voltage: 240 VDC
  • Peak Output Current: 22 Amps
  • Continuous Output Current: 22 Amps
  • Installed Load Capacity: 3.75 kVA
  • Ballast Circuit Pulse Power: 5.4 kW
  • Ballast Circuit Continuous Power: 135 W
  • Minimum Motor Inductance: 0.7 millihenries
  • Control Method: Analog PI current and speed control
  • Commutation: Trapezoidal commutation
  • Feedback: RLG resolver and DC tachometer inputs
  • Logic Interface: 24 VDC with isolated optocouplers
  • Protection: Overvoltage, undervoltage, overcurrent, short-circuit, earth fault, thermal monitoring
  • Operating Temperature: 0 degrees Celsius to plus 40 degrees Celsius
  • Protection Rating: IP00

Functional Features

  • Three-phase PWM transistor output stage for 4-quadrant operation
  • Two differential setpoint inputs with individual adjustment
  • Enable input for secure integration
  • Electronic rotor position sensor input
  • Ballast circuit with characteristic-w for parallel module power-sharing
  • Ready/standby relay with isolated fault contact
  • LEDs for all operating states
  • Expansion slot for optional ramp generator and limit-switch PCB
  • Servo motor brake control for 24 VDC brakes up to 1.5 Amps

Application Scenarios

  • Medium-duty CNC machinery
  • Robotics and automation systems
  • Packaging and material handling
  • Legacy industrial equipment upgrades

Performance Parameters

  • 22 Amp continuous current supports medium frame SM series motors
  • 3.75 kVA load capacity for demanding applications
  • Fast analog PI control response
  • Reliable 4-quadrant operation

Material Composition and Structure

  • Steel chassis with aluminum front panel and heatsink
  • Integrated smoothing capacitors and ballast resistor
  • Modular plug-in PCB design
  • Heavy-duty terminal blocks
  • Status LED indicators

Working Principle The amplifier establishes a 240 VDC bus from three-phase AC input. PI controllers regulate speed and current based on setpoint and tachometer feedback. The rotor position sensor controls phase switching for trapezoidal commutation. Regenerative energy during braking is dissipated through the integrated ballast resistor circuit.

Installation Requirements

  • Mount in closed switchgear cabinet with temperature control
  • Connect to three-phase isolating transformer
  • Use twisted shielded cables for all signal and power wiring
  • Implement proper grounding with common star point
  • Integrate BTB contact into safety circuit

Operating Precautions

  • Verify all voltage ratings match system requirements
  • Never service while live, wait for capacitor discharge below 20 VDC
  • Ensure forced ventilation for sustained 22 Amp operation
  • Maintain vertical mounting orientation
  • Monitor ballast circuit operation through yellow LED D83