Hypertherm HT2000-200 Volt - Manual (Page 33)

SPECIFICATIONS
2-2 HySpeed HT2000
Instruction Manual
19
Introduction
Hypertherm’s HT2000 is designed as a machine-mounted plasma cutting system for cutting most metals from
gauge to two-inch (50mm) thick. A micro-controller on the power supply control board helps to provide
extended life for the torch consumable parts. To achieve consumable long life,
all cuts must begin and end
on the plate surface
; this allows for the proper ramping of gases and DC current to extend the life of the
torch nozzle and electrode.
The HT2000 system provides the user with capability of locating the power supply and the torch apart by a
maximum of 200 feet. This is accomplished by using a remote high frequency (RHF) console.
The HT2000 provides continuously variable current output from 40 to 200 amps for optimum performance on
all thicknesses of metal. This allows the operator wide variations in cutting speeds on the same thickness of
metal. Three nozzle sizes are provided to produce high quality cuts throughout its range of cut thicknesses.
The HT2000 can be configured for air, oxygen, nitrogen, or argon/hydrogen cutting. For cutting stainless
steel, aluminum, and other non-ferrous materials, nitrogen or argon-hydrogen can be used as the plasma gas.
(Hypertherm recommends a mixture of 35% hydrogen and 65% argon). When cutting mild (carbon) steel,
oxygen can be used as the plasma gas. Shield gases other than air which can be used are nitrogen and
carbon dioxide.
The following descriptions briefly describe the purpose and configuration of the major units which comprise
the HT2000 system.
Power Supply
This unit houses two 100-amp, 15kHz chopper power supplies to produce constant current DC output,
variable from 40 to 200 amps. Also located in this unit is the Torch Height Control (THC). The power supply
interconnects with the RHF console, the gas console, the motor valve console, the machine computer, the
remote V/C, the IHS, water muffler, and the workpiece.
An EMI filter comes standard with the 400V CE power supplies. Refer to Appendix E to connect incoming
power to the filter and to find filter part number information.
Remote High Frequency (RHF) Console
This unit houses the high frequency starting circuit which permits more effective RF shielding and allows the
power supplies to be installed at a distance of up to 200 feet from the torch. Also located in the console is a
door interlock switch, a torch cap-sensing switch and valve, and the shield gas valve. The RHF console
interfaces with the power supply, gas console, and the torch.