The Proma THC SD
$400.00
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This is a torch height controller electronics for plasma cutters.
Connect the plasma Voltage to the controller and set the control Voltage and the controller will produce the torch up/down and on signals to control the machine s Z-axis keeping a constant torch height making a high quality cutting, saving you tips and not at last can cut bent, not straight sheet materials too.
Description
The Proma THC SD is a new generation of plasma torch height controller. It is based on the popular Compact THC 150 model.
The Proma THC SD inputs / outputs generate corrective signals of step/dir proportionally to the slope of the material.
The connection method of a controller “beyond the software” allows you to use it with the
software without the THC function.
Intended for use with any control system that uses STEP/DIR signals to control the Z axis.
Simplified Block diagram:
Pilot Arc Voltage Neutralizer – protection system, which is responsible for
removing spikes in the AC electrical flow, which can be caused by a plasma
source with contact-less arc striking (HV/HF pilot arc) generating a high voltage
or from surges coming from plasma cutters equipped with contact arc striking
system.
Main Arc Voltage Divider – While in operation, the cutter generates dangerous
voltage levels, unsafe for precision electronics. A voltage divider system is
incorporated to reduce this voltage to a safe level.
A quick acting filter system removes any interference that may pass through a
voltage divider.
Filtered and scaled voltage values derived from the plasma cutter’s “raw arc
voltage” are then sent to the brain of the device. The “brain” consists of a
programmed microprocessor, which in addition to the analysis of the cutting
voltage parameters and proper output blocks controlling, also supports the LED
display and function keys.
A built-in switching power supply ensures compatibility in a wide range of power
supply voltages without the need for heat sinking. The power supply connection
is optically isolated from the rest of the system which allows you to use to share
power from existing systems providing they output the recommended voltage.
The last block is an output system, which transmits signals to the stepper motor
controller.
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