Procedure for configuring controlled drives

Based on the application, the drive train components are calculated and selected in the order described here. In contrast to project planning for non-controlled drives, the motor is selected after the gear unit.

  1. General application-side calculations
    • Travel dynamics
    • Output speed and gear ratio requirement
    • Forces and torques
    • Mass moment of inertia
  2. Calculating and selecting the gear unit
    • Output end torques
    • Selecting the gear unit
    • External forces (overhung loads and axial loads)
  3. Calculating and selecting the motor
    • Motor torques
    • Motor preselection (type, size)
    • Checking the drive selection
  4. Calculating and selecting the brake
    • Special requirement for lifting applications
    • Braking work and braking torque
    • Selecting the brake
    • Gear unit load during emergency stop braking
  5. Calculating and selecting the frequency inverter
    • Assigning the frequency inverter based on the rated motor power
    • Calculating the maximum and effective inverter current
    • Selecting the frequency inverter according to calculated motor currents
    • Selecting the frequency inverter for operating modes with current-controlled control
    • Derating factors
    • Braking resistor (optional)