Template:X-Series/7/Manual Control

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Manual Control

Most X-Series motion control products have an integrated, depressible knob with 20 detents per revolution, allowing axes to be controlled without the use of a computer. There are two manual movement modes available: Velocity and Displacement. Switch between these modes by holding down the knob for 1 second or by configuring the knob.mode (T:109) setting.

On power-up, many axes will only travel towards the motor from their start-up positions until the home position is reached. Once the axis has been homed, the full range of travel becomes available.

Velocity Mode

Turn the knob clockwise to move the axis in the positive direction (extend) or counter-clockwise for negative direction (retract). Each detent of the knob increases the speed of the carriage.

There are 16 speeds in each direction. The velocity profile and maximum speed can be configured via the knob.speedprofile (T:112) and knob.maxspeed (T:111) settings. The axis stops and resets the knob upon arriving at the end of travel.

Displacement Mode

Turn the knob clockwise to move the axis in the positive direction (extend), counter-clockwise for negative direction (retract). Each detent of the knob moves the axis a fixed number of move increments, specified by the knob.distance (T:110) setting. If knob.distance (T:110) is set to 0, each detent of the knob will move to the next index position, similar to move index (T:78) movements. The axis moves at the speed specified by the maxspeed (T:42) setting, or the slower of maxspeed (T:42) and limit.approach.maxspeed (T:41) if the axis has not been homed. If there are fewer than knob.distance (T:110) move increments to the end of travel and another move is requested, the axis will move to the end of travel and then stop.

Summary of knob functionality

  • Turning the knob:
    Moves the axis in the direction of knob turn.
  • Pressing the knob:
    Decelerates and stops the axis (identical to a stop (T:23) command).
    Instantly stops the axis, if the axis is already decelerating.
    Warning: Stopping instantly may result in damage to the product and reduced lifespan. Use sparingly if the axis is under heavy load.
  • Pressing and holding the knob for 1 second:
    Toggles between Velocity Mode and Displacement Mode.