Hypertherm HTA Rev 6.00 Operators Manual - Manual (Page 49)

Section 3: Setups 35
Creep Time
Specifies the amount of time after piercing the part that the torch travels at Creep Speed. Creep
Speed is determined by a setup parameter at the Speeds setup screen and is a percentage of the
programmed cut speed. After the Creep Time is completed, the control accelerates to full cut speed.
Cut Off Time
The Cut Off delay parameter species the amount of time the cut on output will remain on at the end of
a cut. A negative Cut Off time up to one second may be used to terminate the cut output prior to the
end of the cut segment. This is used to compensate for response delays of the cut gases that will
maintain the cut arc and widen the cut path at the end of the cut segment.
Full Torch Up Time
Specifies the length of time to raise the torch at the beginning and end of each cut to provide
clearance over the cut pieces. If you are using an automatic height control system, set Torch Up
Time to zero.
Partial Torch Up Time
Specifies the length of time for a partial raise of the torch at the beginning and end of each cut to
provide clearance over the cut pieces. If you are using an automatic height control system, set Torch
Up Time to zero. Note: The Partial Raise parameter must be enabled.
Torch Down Time
Specifies the length of time to lower the torch at the beginning of each cutting cycle. If you are using
an automatic height control system, set Torch Down Time to zero.
Arc Off Time
Specifies the amount of delay to allow prior to indicating a lost cut signal. This can be useful in
helping to minimize nuisance trips when traveling over previously cut paths in complex nested parts.
Stop Time
Specifies the amount of time that X/Y motion will pause at the end of a cut. This pause is
advantageous for allowing the torch to completely raise and clear any cut irregularities before
continuing to the next cut segment.
Retract Delay
Retract Delay specifies the amount of time X/Y and lifter motion will pause at the end of a cut. This
allows the cut process to finish before lifting the torch and moving to the next pierce.
Set Arc Current
The Set Arc Current feature allows the user to set the arc current at the plasma supply. This feature
uses the “Set Current BCD” output from the control to activate the BCD inputs at the plasma supply.
The Set Arc Current parameter is also available for the HD4070
® via the serial link. EIA RS-274D part
program code G59 Vvalue Fvalue for setting current is supported.
Corner Current Percent
The Corner Current Percent feature allows the operator to select a reduced current setting to be
executed when cutting corners to improve cut quality. This value is a percentage of the Set Current (
above ) and is active when the Torch Height Disable Output is on. The Corner Current parameter is
also available for the HD4070
® via the serial link.
Retry Transfer Fail
The Retry On Transfer Fail feature is used to specify the number of times the control will attempt to
fire the torch in the event that the torch fails to ignite.