CARBONE DIGI-CUT70, Руководство оператора, Страница: 16 / 33

B-2 OPERATION B-2
PRODUCT DESCRIPTION
The new, redesigned DIGI-CUT70 are non high
frequency start machines. The “blow-back” type
start that they use is safe for use in CNC
applications and is ideal for general use. The
elimination of the HF points within the unit also
improves reliability and removes the need for
regular HF point gap maintenance. Blow-back
type start involves a rear-ward movement of
the electrode within the torch head when forced by
the air pressure. When air pressure is applied the
movement of the electrode off its seated position
against the inner surface of the circuit grounded
nozzle creates a spark, energizing the plasma
stream. This type start means that it has a pilot
arc design so that cutting can be done on any metal
surface without having to contact to strike an arc
and is ideal for cutting items like expanded metal or
uneven surfaces. There are several other key
features on the PowerPlasma :
A.
IGBT construction is designed to improve
reliability while make servicing a unit quicker,
and more cost efficient. Using mostly non
proprietary components ensures long term
serviceability.
B. OK-to-Cut light stays lit while the plasma
cutter is within the minimum limits needed for
the torch to function without burning up. If the
light goes out an automatic override kicks in
and shuts down the unit until the air pressure
is back to a sustainable level. Minimum air
pressure is set at about 35 psi, which is not
ideal, but will prevent premature torch failure.
RECOMMENDED PROCESSES AND
EQUIPMENT
RECOMMENDED PROCESSES
General Use and Care
: The Plasma cutter is
designed for use in many industrial environments
such as ship yards, fabrication shops and pipelines.
However, care should be taken to keep the unit
out of direct contact with water spray. The unit is
rated IP21S, which rates it for light contact with
dripping water. It is a good idea to remove the
welder from the vicinity of any water or moisture
source to reduce the possibility of electrocution or
shock. Never operate in standing water. This unit
has a high Open circuit voltage further
necessitating safe operating practices. Use only in
a protected/sheltered area while connected to a
CNC water table. The operator should be careful to
prevent splashing/spraying water in the direction
of the plasma cutter. Every 1 ‐ 2 months, depending
upon use, the welder should be unplugged,
opened up and carefully cleaned with dry,
compressed air. Regular maintenance will extend
the life of the unit.
IMPORTANT: Before opening the unit for
any reason,make sure the unit has been
unplugged for at least 10 minutes to allow
time for the capacitors to fully discharge.
Severe shock and/or death can occur.
Do not restrict air flow or movement of air around
the plasma cutter. Allow a buffer distance of 2 ft.
from all sides if possible, with a minimum distance
of at least 18” clearance. Do not direct metallic
dust or any dirt intentionally toward the machine,
particularly in grinding and cutting operations.
Make sure the panel is protected from damage
during welding and cutting operations by flipping
down the clear protective cover.
RECOMMENDED QUIPMENT/INTERFACE
(See Installed Options in Accessories Section for
more details)
The
Plasma cutter
will be available as a basic
Machine (Only) and in Factory Basic module will
also be available as with Domestic,.
(
SEE PACKING LIST,PLEASE )
CUTTING CAPABILITY(Duty Cycle)
The Plasma cutter is rated at 70 amps, 98 volts,
at 60% duty cycle on a ten minute basis. It is
capable of higher duty cycles at lower output
currents. See rated output graph, on specification
sheet located in the Installation Section. If the duty
cycle is exceeded, a thermal protector will shut off
the output until the machine cools.