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.
NOTES: The machine has also been designed for use in
environments with a pollution rating of 3. (See IEC 664).
1.5. START-UP
The machine must be installed by qualified personnel. All
connections must be made in compliance with current
safety standards and full observance of safety regulations
(see CEI 26-23 - IEC TS 62081).
Connect the air supply to fitting S7 (Pict. 1) with a pipe with
an INTERNAL DIAMETER OF NO LESS THAN 13mm.
Make sure that the inlet pressure is at least 7 bar and that
the flow rate of the compressed gas system is at least
360l/min.
If the air supply comes from a pressure regulator of a
compressor or centralized system, the regulator must be
set to an output pressure of no more than 8 bar (0.8 Mpa).
If the air supply comes from a compressed air cylinder, the
cylinder must be equipped with a pressure regulator.
Never connect a compressed air cylinder directly to the
regulator on the machine! The pressure could exceed
the capacity of the regulator, which might explode!
Connect the power cord S9 (Pict. 1): the yellow-green
cable wire must be connected to an efficient grounding
socket on the system. The remaining wires must be
connected to the power supply line by means of a switch
placed as close as possible to the cutting area, to allow it to
be shut off quickly in case of emergency.
The capacity of the cut-out switch or fuses installed in
series with the switch must be equal to the current I
absorbed by the machine.
The absorbed current I
eff. may be determined by reading
1
the technical specifications shown on the machine under
the available supply voltage U
Any extension cords must be sized appropriately for the
absorbed current I
max.
1
2. USE (see Pict. 1)
Make sure the trigger has not been pressed.
Turn the machine on using the switch S8. The display will
light to indicate that the machine is on.
Art.453
Adjust the pressure, stated on pressure gauge S6, to the
pressure stated for the torch connected to the power
source (5 bar for ECF-71 and 6bar for ECF-181) from knob
S5 of the reducer, then lock said knob by pressing down.
Art.461
On this power source the gas pressure is fully automatic
and is adjusted based on the connected torch and selected
process, therefore no operator-adjustment is required.
Connect the grounding clamp to the workpiece.
The cutting circuit must not be deliberately placed in direct
or indirect contact with the protective wire except in the
workpiece.
If the workpiece is deliberately grounded using the
protective conductor, the connection must be as direct as
possible and use a wire of at least the same size as the
cutting current return wire, and connected to the workpiece
at the same point as the return wire using the return wire
clamp or a second grounding clamp placed in the
immediate vicinity. Every precaution must be taken to avoid
stray currents.
Make sure that the grounding clamp and workpiece have a
good electrical contact, especially with painted, oxidized or
insulated sheet metal.
1
.
1
Do not connect the grounding clamp to the part of the
material that is to be removed.
2.1. WORK METHOD
Turn knob S1 (Pict.1), to select the icon of Pict. 4 Ref. A,
then press the knob to enter the following menu and
choose the required work method:
The selected work method remains highlighted until a
different one is chosen.
To exit the menu without making any selection, position the
cursor on the arrow on the bottom right and press knob S1
(Pict.1), to confirm exiting.
2.1.1. Manual cutting
Using knob S1 (Pict.1), choose the cutting current and use,
by installing it on the torch, the nozzle suggested by the
synergic screen and suitable for the set current (Pict.4 Ref. F).
Press the torch trigger to strike the pilot arc.
If cutting does not begin within 5 seconds, the pilot arc
goes out; press the trigger again to re-strike it.
Hold the torch vertically and as perpendicular as possible
to the piece during cutting.
When you have finished cutting and released the trigger,
eff.
air continues to come out of the torch for the amount of
time required to cool the torch. (POST GAS).
It is advisable not to turn the machine off until this
cool-down period is complete.
Should you need to make holes or begin cutting from the
centre of the workpiece, you must hold the torch at an
angle and slowly straighten it so that the nozzle does not
spray molten metal (see Pict. 2). This must be done when
manually perforating pieces more than 3 mm thick.
When making circular cuts, we recommend to use the
special compass available upon request. It is important to
remember that using of the compass it could be necessary
to use the starting technique described above (see Pict. 2).
Do not keep the pilot arc lit in the air when not needed, to
avoid unnecessary consumption of the electrode, swirl ring
or nozzle.
When the work is finished, wait for post gas to finish and
turn the machine off.
2.1.2. Cutting nets and grates (automatic restart)
To cut perforated or grid metal, activate this special
function via the main menu. When you have finished
cutting, if you hold the push-button down the pilot arc will
restart automatically.
Use this function only if necessary to avoid unnecessary
wear on the electrode and nozzle.
2.1.3. Synergic mechanized cutting
This new cutting mode takes advantage of a synergic
interface that helps the user to set the cutting parameters.
After selecting the above icon, select the kind (Pict. 4 Ref
17