Torch height disable – Hypertherm Phoenix 8.0 User Manual

Page 348

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Password Setups

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Maximum Tilt Speed
Specifies the maximum speed for the tilt axis, in revolutions/minute.

Tilt High Jog Speed
Specifies the high speed for tilt axis jog.

Tilt Low Jog Speed
Specifies the low speed for tilt axis jog.

Torch Height Disable

The Torch Height Disable feature is used to activate the Torch Height Disable output and
freeze, or disable, the automatic adjustment of the automated torch height control system
to prevent diving or crashing of the torch in corners.

Note: The Dual Grid/THC feature must first be enabled in the Plasma Setups screen.

The CNC activates the Torch Height Disable output based on the values of the following
parameters:
• Plasma Hi/Lo % of Cut Speed

• Plasma Distance to Corner
• Plasma Distance from Corner

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
password screen and the value of the Plasma Hi/Lo 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.

Plasma Hi/Lo Speed Percentage
Specifies the percentage of the cut speed below which the CNC will activate the Torch
Height Disable output. The plasma system can use this output to switch from low to high
current or to disable the height control.

Plasma Distance To Corner
Specifies the distance before turning a corner at which the plasma system should switch
from low current to high current or disable the Automated Height Sensor. Distance to
Corner is active when the speed drops below the Plasma Hi/Lo Percentage, or when
segments intersect at an angle greater than the tangent angle.

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