Hypertherm V9 Series Phoenix Rev.11 - Manual (Page 85)

Phoenix 9.76.0 Installation and Setup Manual 806410 85
2 – Machine Setup
Torch Height Disable
The Torch Height Disable feature activates the Torch Height Disable output and freezes, or disables, the automatic
adjustment of the automated torch height control system to prevent diving or crashing of the torch in corners, holes, or
other part features which require the cutting system to slow down to preserve cut quality or system mechanics.
The CNC activates the Torch Height Disable output based on the values of the following parameters:
 Torch Height Disable Speed
 Distance before THD Speed
 Distance After THD Speed
When any one of these conditions is met, the Torch Height Disable feature is implemented. The definition of a corner is
based on the tangent angle in the Special Setups screen and the value of the Torch Height Disable Speed.
Tangent Angle: Specifies the degree of the tangent angle for motion control. Segments within a part that intersect at
angles greater than the selected tangent angle will decelerate to zero or the minimum corner speed.
Segments within a part that intersect at angles less than or equal to the selected tangent angle do not
decelerate unless the next segment is a speed-limited arc.
Torch Height Disable Speed: Specifies the percentage of the program cut speed at which the CNC disables the
height control. For example, when the cutting system is slowed to cut a part feature, such as a corner, the arc
voltage increases which would cause the torch to lower into the workpiece. When the cutting system slows
down to this percentage of the cut speed, the CNC disables THC voltage tracking.
Distance Before THD Speed: This distance is active whenever the program cut speed drops below the Torch Height
Disable Speed, or segments intersect at an angle greater than the tangent angle. Specifies the distance
before turning a corner at which the CNCs disables the torch height control.
Distance After THD Speed: Specifies the distance after turning a corner to enable voltage tracking for torch height
control. Distance After THD Speed is active whenever the speed drops below the Torch Height Disable
Speed, or segments intersect at an angle greater than the tangent angle.