Cutting Operation; Preliminaries - Helvi PC EVO 76 Manual De Instrucciones

A
Figure 15
A. Operation Mode Selection Key
• Non-continuous pilot arc. Cuts or pierces
metal plate. Standard setting for normal cut-
ting.
• Automatic pilot arc. Cuts expanded metal or
grate.
• Gouge. Gouges metal plate.
• Cutting with CNC
B. Torch Air Purge Key
It allows to remove any condensation that may have
accumulated in the torch and leads while the system
was shut down, to get the pressure set thru the air
regulator (5) viewed on the display and to select and
set the secondary parameters.
C. Air Pressure Indication LEDs
• Green LED "OK" ON = correct air pressure

PRELIMINARIES

WARNING
unplug the unit from the power supply
before assemble or disassemble piled
parts, single parts, parts of the torch,
torch assemblies or cables.
• Check and follow instructions as foreseen in
the paragraphs "Safety and Installation" of
the present instructions manual.
D F

CUTTING OPERATION

G H E
• Red LED "Increase" ON = too low air pres-
sure
• Red LED "Decrease" ON = too high air pres-
sure
D. Cutting Current LED
when on it means that the display is viewing the
adjusted or the effective cutting current.
E. BAR LED
when on it means that the display is viewing the
adjusted pressure.
F. Green LED
It is on when power is applied to the unit. It blinks by overvoltage, low voltage o missing of one phase.
G. Yellow LED
It is on by overtemperature.
H. Red LED
It is on when pilot arc or cutting arc is started.
PARTS OF THE TORCH
• Check the torch for proper assembly (refer
to Section called Torch Consumable Parts
Mounting).
• Install proper torch parts for the desired ap-
plication (refer to Section called Torch Consu-
mable Parts Selection).
INPUT POWER
• Check the power source for proper input vol-
tage.
• Plug unit in and close main disconnect switch
EN-10
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