Sensor™ THC 384
Nozzle Contact IHS
This parameter would be set to ON to select the Sensor THC to use Contact Sense to detect the
plate during the IHS cycle. It is recommended that Nozzle Contact Initial Height Sense be used when
cutting light gauge material to prevent plate deflection.
Nozzle Contact During Cut
This parameter is set to ON for the Sensor THC to use the Contact Sense input to detect the plate
contact during cutting. In Automatic mode, if this parameter is On and the Nozzle Contact Sense
input activates, the torch will raise during the cut until the Nozzle Contact Sense input turns Off, then
the Torch will return to Tracking Voltage.
Offset IHS
The Offset IHS feature is used to activate a remote probe for plate detection and Initial Height Sense.
With this feature enabled, the control system will execute the Tool / Marker Offset number nine. This
will move the Plasma cutting torch the distance of the offset, perform the IHS and then return the
Plasma torch to the pierce location at each commanded pierce / cut on. The Z axis parameter is
used to adjust for height differences between the torch and the probe.
Auto Kerf Detect
The Auto Kerf Detect feature reduces the possibility of the torch diving into the plate. When enabled,
the THC will detect sudden changes in arc voltage when crossing a Kerf path and will freeze motion
of the THC.
Auto Kerf Voltage Change
The Auto Kerf feature of the Sensor THC will detect a voltage change when the torch passes over a
previous cut and will disable the THC to prevent the torch from diving. This setup parameter is used
to specify the allowable variation from the voltage setpoint at which the THC will detect the voltage
change and disable the THC.
Kerf Detect Reacquire Time
The Kerf Detect Reacquire Time determines the time limit at which the control will force the THC to
adjust the THC height to meet the voltage setpoint if the Automatic Voltage Lock On has not been
established after a Kerf crossing.
Note: Depending on the performance of the plasma system being used, a creep time may be
required to allow for ramp up of the cut voltage after the pierce.
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