Hypertherm PAC500 Product Configuration - Manual (Page 21)

1-16 PAC-500
ORDERING PROCEDURE - Optional and Additional Equipment
11 SELECT THE TORCH HEIGHT CONTROL SYSTEM
There are five basic choices to provide torch height control for the PAC-500 system:
• 11a THC-2
• 11b THC-1 with Fluidic Initial Height Sensing
• 11c THC-1 with Digital Current Control and Inductive Initial Height Sensing
• 11d THC-1/Remote Voltage-Current Control with Fluidic Initial Height Sensing
• 11e THC-1/Remote Voltage-Current Control with Inductive Initial Height Sensing
11a THC-2
The THC-2 is the simplest of the systems. This unit provides only the torch height control
function. (Corner Height Inhibit is not provided and Initial Height Sensing is not
available.) This option is best suited to optical trace machines where machine operations
are manually controlled by the operator. The THC-2 controls the torch height by arc
voltage control. A reference voltage is set on the THC-2 and when there is a variation in
that voltage during cutting, the torch suspension motor is activated to adjust the torch
height.
Note that with the THC-2 system, cables to the control console and the cutting
machine controller are not supplied by Hypertherm. Use five-conductor 18-gauge
cable to connect the THC-2 to the cutting machine control. Use three-pair 22-gauge
shielded cable to connect the THC-2 to the control console.
• Locate an area to mount the THC-2 (this should be in easy reach of the operator), and
order the system.