Hypertherm V9 Series Phoenix Rev.11 - Manual (Page 186)

186 Phoenix 9.76.0 Installation and Setup Manual 806410
8 – Diagnostics
THC Test
Conduct this test if:
 Nozzle contact is not functioning properly. For example, IHS using ohmic contact is not sensing the workpiece or is
not accurate, the torch is running into the workpiece during cutting without retracting, or the torch is firing in the air.
 Arc voltage feedback is not functioning properly.
 The torch is rising off the workpiece or driving into the workpiece during the first part of a cut after piercing.
To test a THC port:
1. On the Machine Interface screen, press the THC port you want to test.
2. Follow the instructions on the screen to connect the THC test cable to the THC port you selected and to the Axis
1-2 port (Hypath) or the X/Y port (Picopath). Use the blue tester for Hypath and the yellow tester (not shown) for
Picopath.
3. On the Machine Interface screen, press Test. A message informs you if the test is successful.
If the test fails, contact your OEM or system integrator check or replace these parts in the following order:
1. Analog field interface card
2. Ribbon cable
3. Analog input card
WARNING
To prevent motion on the table, disconnect all axis cables from the CNC before
conducting this test.