YASKAWA HV-75AP4

YASKAWA HV-75AP4

Product Introduction HV-75AP4 is high voltage servo amplifier manufactured by Yaskawa for high power servo motor control. It receives motion command from upper motion controller, converts high voltage AC input into three-phase variable frequency AC power to drive high voltage AC servo motor. The unit executes high bandwidth position, speed and torque closed-loop control, suitable for heavy-duty high power motion equipment. It integrates comprehensive hardware protection and fault diagnostic functions.

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Description

YASKAWA HV-75AP4

Technical Specifications

  • Product Type: High voltage AC servo amplifier
  • Input Power: 3-phase high voltage AC input
  • Rated Output Power: 75 kW
  • Control Modes: Torque, speed, position closed-loop control
  • Feedback Interface: Incremental encoder, absolute encoder
  • Communication Interfaces: Motion bus, analog command, pulse command
  • Protection Functions: Overcurrent, overvoltage, undervoltage, overtemperature, encoder fault, overload
  • Protection Rating: IP20
  • Operating Temperature: 0 °C to +45 °C
  • Mounting: Vertical panel mounting inside control cabinet
  • Cooling: Forced air fan cooling

Functional Features

  1. High power three closed-loop control for heavy-duty high voltage AC servo motors.
  2. Accept multiple command source including pulse train, analog voltage and motion fieldbus command.
  3. Support incremental and absolute encoder feedback for high precision position measurement.
  4. Built-in auto-tuning function optimizes servo loop gain for large mechanical loads.
  5. Comprehensive hardware protection prevents damage under overload, short circuit and overtemperature.
  6. Fault diagnostic function stores fault codes and operation waveform for troubleshooting.
  7. Digital I/O channels accept enable, limit and interlock signals and output axis status.
  8. Front panel LED indicators display power, run and fault status.
  9. Parameter setting via keypad or Yaskawa PC configuration software.
  10. Regenerative braking function handles motor deceleration energy for heavy inertial load.

Application Scenarios

  • Large CNC machine tool heavy spindle and feed axis drive
  • Metal forming heavy press servo axis control
  • Large gantry robot joint high power servo drive
  • Material test bench high force motion equipment
  • Large automated cutting and processing machinery

Material Composition

  • Enclosure: Cold rolled steel metal casing with powder coating
  • Main PCB: FR4 printed circuit board with conformal coating
  • Power components: High voltage IGBT power modules
  • Control processor: High speed digital signal processor
  • Terminal blocks: High current nickel-plated copper screw terminals
  • Cooling components: Axial cooling fan and aluminium heat sink
  • Communication connectors: Gold plated D-Sub connectors for encoder feedback

Structural Characteristics

  • Vertical rectangular metal cabinet structure for cabinet panel mounting.
  • Front panel with keypad, LED indicators and ventilation grilles.
  • Internal fan mounted at bottom for upward forced convection cooling.
  • Rear high current terminals for three-phase power input and motor power wiring.
  • Separate low current connectors for encoder feedback and digital I/O signals.
  • Internal isolation barrier separates high voltage power circuit and low voltage signal circuit.

Working Principle Upper motion controller sends motion command to HV-75AP4 servo amplifier. DSP compares command position and actual encoder feedback position, calculates control output through PID algorithm. High voltage IGBT power stage converts three-phase AC input into variable frequency three-phase AC to drive high voltage servo motor. Encoder signal feeds back continuously to close position loop. Digital I/O circuit reads machine limit and emergency stop signals. Built-in protection circuit monitors current, voltage and temperature continuously, cuts off power output immediately when fault condition triggers.

Installation Requirements

  • Mount drive vertically inside control cabinet with specified clearance above and below for airflow.
  • Use high voltage shielded cable for motor power and encoder feedback wiring.
  • Separate motor power cable from low voltage signal and communication cables.
  • Complete protective earth connection for drive metal housing.
  • Execute motor identification and servo auto-tuning after wiring completion.
  • Test limit switch, home switch and emergency stop interlock circuit.
  • Verify encoder wiring polarity and count direction before full load test.

Usage Notes

  • Do not operate drive with cooling fan failure.
  • Keep cabinet air inlet filter clean to prevent dust accumulation blocking airflow.
  • Do not connect motor load exceeding drive rated power specification.
  • Backup parameter settings before firmware upgrade or configuration modification.
  • Disconnect AC input power and discharge DC bus capacitor before opening wiring terminals.
  • Use anti-static wristband when handling encoder and control connectors.
  • Replace drive immediately when permanent power stage or control hardware fault occurs.

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