3-wire control

The function is activated via the digital input function selection P1-15 = 21.

The 3-wire control principle determines the control.

The enable and direction of rotation signals of the inverter then respond in an edge-controlled way.

  • Connect the start key <CW> with NO contact to digital input DI1.
  • Connect the start key <CCW> with NO contact to digital input DI3.
  • Connect the stop key as NC contact to digital input DI2.

If you connect <CW> and <CCW> at the same time, the drive decelerates along the rapid stop ramp P2-25.