Operation, General description, Recommended processes and equipment – Lincoln Electric PRO-CUT 55 SVM140-A User Manual
Page 16: Operational features and controls, Design features and advantages
GENERAL DESCRIPTION
The Pro-Cut 55 is an inverter based constant current,
continuous control plasma cutting power source. It
provides superior and reliable starting characteristics,
cutting visibility and arc stability. When cutting
expanded metal, the Pro-Cut 55 out-performs the
competition due to its quick, clean response to arc
transfers. The power supply design provides high
transfer-to-cut distances, which makes pierce cutting
more reliable with less nozzle wear. The control system
has a safety mechanism to insure that the nozzle and
electrode are in place before cutting or gouging. This
is extremely important due to the high voltages
involved.
The Pro-Cut 55 comes standard with an air regulator,
coarse air filter, and pressure gauge. The machine also
comes with an 11 foot (3.35m) input power cord. There
are four different torch and cable systems to choose
from: hand-held torch with 25 foot (7.62m) or 50 foot
(15.24m) cable, machine and robotic torch both with
25 foot (7.62m) and 50 foot (15.24m) cable.
Consumables are included with each Pro-Cut pur-
chase so that cutting can begin right out of the box.
Consumables can also be ordered as individual pack-
ages. An undercarriage kit can be ordered separately.
The Pro-Cut 55 initiates the plasma arc with a simple,
yet reliable, touch-start mechanism. This system elim-
inates many of the failure problems associated with hi-
frequency start systems. The Pro-Cut 55 is capable of
cutting with nitrogen or air.
The Pro-Cut 55 is controlled by a microprocessor-
based control board. The machine performs rudimen-
tary self troubleshooting when powered up, which aids
in field servicing.
RECOMMENDED PROCESSES AND
EQUIPMENT
The Pro-Cut 55 is capable of all cutting and gouging
applications within its output capacity of 25 to 55
amps. These applications include thin gage sheet
metal and expanded metal.
OPERATIONAL FEATURES AND
CONTROLS
The Pro-Cut 55 comes with an ON/OFF POWER
SWITCH, OUTPUT CURRENT CONTROL, PURGE
BUTTON, STATUS INDICATORS and a SAFETY
RESET BUTTON. See Figure B.2 and related discus-
sion.
DESIGN FEATURES AND
ADVANTAGES
The microprocessor controlled Pro-Cut 55 design
makes plasma cutting and gouging tasks uncompli-
cated. This list of design features and advantages will
help you understand the machine's total capabilities
so that you can get maximum use from your machine.
• Light weight and portable design for industrial use.
• Continuous control, 25 - 55 amps.
• Reliable touch start mechanism for plasma arc initi-
ation.
• Unique microprocessor controlled starting
sequence for safe and consistent starting.
• Rapid arc transfer for fast cutting of expanded
metal.
• High transfer distance for ease of use.
• Input overvoltage protection.
• 3.0 second pilot arc.
• Purge momentary push button.
• Air regulator and pressure gauge located on the
front of machine for convenience.
• ”Parts-in-Place” mechanism to detect proper instal-
lation of consumables and torch.
• Automatic detection of faulty output control.
• In-line coarse air filter.
• Preflow/Postflow timing. Preflow is eliminated if arc
is re-initiated in Postflow.
• Thermostatic Protection.
• Solid state overcurrent protection.
• Works with pure nitrogen for cutting nonferrous
materials.
• Reconnectable for 230 VAC or 460 VAC inputs.
• Quick disconnect torch.
• Display indicators for machine status.
• Unique electrode and Vortech™ nozzle design for
optimum cooling and long life.
• Swirl texture inside Vortech™ nozzle for better start-
ing reliability and higher quality cuts.
• Unique drag cup design for durability and elimina-
tion of double arcing.
OPERATION
B-3
B-3
PRO-CUT 55