Hypertherm THC ArcGlide - Manual (Page 113)

ArcGlide THC Instruction Manual 806450 113
2 – Installation
Plasma discrete I/O
Plasma 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 control board is configured with dry contacts, LED operation on the discrete plasma interface board,
installed in the plasma system, is reversed and the LEDs will turn OFF when the input is active.
 If the plasma system uses Hypernet communication with the ArcGlide, these discrete signals are not used. If discrete
signals are used, the required signals of this connector must be connected to the discrete plasma interface board.
Figure 29
The following discrete signals are used to connect the ArcGlide THC to the plasma system. All the required discrete
interface signals between the control module and the plasma system are described below. All other signals are optional
for multiple torch operation, improved performance, or reduction in cycle times.
Arc Transfer: This is a required input to the ArcGlide. This signal is input to the ArcGlide from the plasma system to
indicate that arc transfer has occurred.
Plasma Error: This is an optional signal that is output from the plasma system to indicate that an error has occurred.
Rampdown Error: This is an optional output from the plasma system that indicates the plasma torch lost arc transfer
before the controlled arc turns off. This condition indicates that the consumable life may be reduced. You
should make changes to the part programming to reduce or eliminate these types of errors to achieve
optimal consumable life.
Not Ready: This is an optional output from the plasma system that indicates that the plasma system is not ready to
receive a Plasma Start. The plasma system may be busy changing or purging gas flows or be involved in
some other time-consuming operation. To verify proper operation, the CNC should check this signal before
issuing a Plasma Start.
Corner: This is an optional output from the THC to the plasma system. This signal indicates that the plasma system
should reduce its output current to a pre-programmed level to improve the cutting performance in corners.
The default value is 50% of the normal cutting current. This signal is not available with Hypernet.
Serial Enable: This is an optional input that enables serial communication between the ArcGlide and the plasma
system.
This connector has a blue ring. Calibration and setup door Dry or sourced plasma input switch