Hypertherm ArcGlide Torch Height Control, Instruction Manual

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ArcGlide THC Instruction Manual 2-51
INStALLAtIoN
CNC discrete I/o
All the required discrete interface signals between the control module and the CNC are marked with asterisks (*) in the
following table. All other signals are optional for multiple torch operation, improved performance, or reduction in cycle
times. The inputs have two different modes that are selected using switches behind the calibration and setup door. The
inputs can be configured for dry contacts (no external voltage), or for positive voltage sourced inputs.
If the THC controller interface is configured with dry contacts, the operation of LEDs on the discrete plasma interface is
reversed and the LEDs turn OFF when input is active. With sourced inputs, LEDs turn ON when an input is active.
Note If the Hypernet interface to the CNC is used, only the Interlock Input signal must be wired on this
connector. If discrete signals are used, the required discrete signals on this connector must be connected.
CNC I/o Description
Cut Control*
This is a required signal. It is an output from the CNC and an input to the ArcGlide. The CNC
should activate this signal to begin a plasma cut. This signal begins the entire process of IHS,
Plasma Start and Motion, and Automatic Voltage Control (AVC) followed by a retract at the end of
the cut when this signal is removed. This signal must be maintained during the plasma cut.
Low Gain Input
This input automatically reduces the AVC gain for marking. This improves the stability of the height
control during marking
Torch Height
Disable*
This is an optional signal input to the ArcGlide. When active this signal will temporarily disable
the automatic height control and force the torch to hold its height position. It is primarily used to
disable the height control in corners or whenever the machine speed is not at the optimal cutting
speed. This signal improves cutting performance by disabling the height control when the machine
slows down for corners. This improves the corner cut quality and prevents the torch from diving
into the workpiece.
Hold Ignition
This is an optional input to the ArcGlide to allow multiple torches to start synchronized. For a
single torch installation, this signal is optional but recommended. The CNC should activate this
signal to delay plasma torch ignition until all active torches in a multiple torch configuration have
completed their IHS sequence and are in position and ready to fire. At this point all active torches
will return an active IHS Complete signal to the CNC and the CNC should remove all Hold
Ignition input signals and allow all active plasma torches to ignite simultaneously.
This connector has a
yellow ring.
Calibration and setup door
Dry or sourced input
switch