Elettro CF 483, Instructions Manual

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7
INSTRUCTIONS FOR PLASMA CUTTER
IMPORTANT
READ THIS MANUAL AND THE SAFETY RULES
MANUAL CAREFULLY BEFORE INSTALLING, USING,
OR SERVICING THE MACHINE, PAYING SPECIAL
ATTENTION TO SAFETY RULES. CONTACT YOUR
DISTRIBUTOR IF YOU DO NOT FULLY UNDERSTAND
THESE INSTRUCTIONS.
This machine must be used for cutting only.
It is also essential to pay special attention to the "SAFETY
RULES" Manual. The symbols next to certain paragraphs
indicate points requiring extra attention, practical advice or
simple information.
This MANUAL and the "SAFETY RULES" MANUAL must
be stored carefully in a pica familiar to everyone involved in
using the machine. They must be consulted whenever
doubts arise and be kept for the entire lifespan of the
machine; they will also be used for ordering replacement
parts.
1. INSTALLATION
1.1. DESCRIPTION OF DEVICES ON THE MACHINE
A) Block LED; lights when hazardous conditions
arise.
B) Mains power LED.
C) Thermostat LED.
D) Low air pressure LED.
G) Grounding cable.
H) Cutting current regulator knob.
I) Torch fitting.
J) Pressure regulator knob.
K) Pressure gauge.
L) Compressed air fitting (1/4" female gas thread).
M) Air pressure regulator.
N) Mains power switch.
O) Water trap.
P) Power cord.
1.2. SAFETY DEVICES
This system comes equipped with the following safety
devices:
Overload cut-out:
To avoid overloads. It is evidenced by the
C
led
continuously on (see pict.1).
Pneumatic:
Located on the torch inlet to prevent low air
pressure. The LED
D
lights when tripped (see
pict.1).
The blinking
D
led means that the pressure has temporarily
gone below 3.2 ÷ 3.5 bar.
Electrical:
1.
It signals the presence of dangerous tensions
inside the machine. The LED
B
(see pict.1) lights
to indicate this function. The LED
B
keeps on
lighting, even after having switched off the machine, until
dangerous internal tensions persist.
2.
Located on the torch body, to prevent hazardous
voltages from occurring on the torch when, swirl ring,
electrode or nozzle holder are replaced.
To ensure the efficiency of these safety devices:
y
Do not remove or short-circuit the safety devices.
y
Use only original spare parts.
y
Always replace any damaged parts of the machine
with original materials.
y
Do not run the machine without its housings. This
would be dangerous to the operator and anyone else
in the work area, and would prevent the machine from
being cooled properly.
1.3. EXPLANATION OF TECHNICAL SPECIFICATIONS
EN 60974-1 The equipment is built according to these
EN 60974-7 standards.
EN 60974-10
Cl. A Machine for professional and industrial use.
Single-phase static transformer-rectifier
frequency converter.
Down slope.
Suitable for plasma cutting.
TORCH TYPE Type of torch to be used with this machine
to form a safe system.
U0 Secondary open-circuit voltage.
X Duty cycle percentage.
The duty cycle expresses the percentage of
10 minutes during which the welding
machine may run at a certain current I
2
and
voltage U
2
without overheating.
I
2
Cutting current.
U
2
Secondary conventional voltage with
welding current I
2
. This voltage depends
on the distance between the contact tip and
the workpiece.
If this distance increases, the cutting
voltage also increases and the duty cycle
X% may decrease.
U
1
Rated supply voltage.
1~ 50/60Hz 50- or 60-Hz single-phase power supply
I
1
Max Max. absorbed current at the
corresponding current I
2
and voltage U
2
I
1
eff This is the maximum value of the actual
current absorbed, considering the duty
cycle.
IP23 Protection rating for the housing.
Grade 3 as the second digit means that this
equipment is suitable for use outdoors in
the rain.
Suitable for use in high-risk environments.