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In case the supply cable is not fitted with a plug,
connect a standardized plug to the
some models the supply cable is supplied with plug).
To connect the plug to the supply cable, follow these
instructions:
1ph - PC50.1
Brown wire
Terminal L
(phase)
Blue wire
Terminal N
(neutral)
Yellow/green
Terminal PE
(ground) wire
or
In any case, the connection of the yellow/green wire
to the PE terminal
the event of tearing of the power supply cable from
the plug, the yellow/green wire should be the last
one to be disconnected.
The outlet should be protected by the proper
protection fuses or automatic switches.
Notes:
•
Periodically inspect supply cable for any
cracks or exposed wires. If it is not in good
conditions, have it repaired by a Service Cen-
tre.
•
Do not pull violently the input power cable to
disconnect it from supply.
•
Do not squash the supply cable with other ma-
chines, it could be damaged and cause electric
shock.
•
Keep the supply cable away from heat sorces,
oils, solvents or sharp edges.
•
In case you are using an extension cord, try to
keep it well straight and avoid its heating up.
SAFETY INSTRUCTIONS
For your safety, before connecting the power source
to the line, closely follow these instructions:
•
An adequate switch must be inserted before
the mains outlet; this switch must be equip-
ped with time-delay fuses;
•
The connection with ground must be made
with a plug compatible with the above men-
tioned socket;
•
When working in a confined space, the power
source must be kept outside the welding area
and the ground cable should be fixed to the
workpiece. Never work in a damp or wet area,
in these conditions.
•
Do not use damaged input or welding cables
•
The welding torch should never be pointed at
the operator's or at other persons' body;
•
The power source must never be operated
without its panels; this could cause serious
injury to the operator and could damage the
equipment.
CONNECTION TO GROUND CABLE
Connect the plug to the socket and the work cable
supply cable (in
3ph PC50.3
Brown wire
Terminal L1
Blue or grey
Terminal L2
wire (neutral)
Black wire
Terminal L3
Yellow/green
Terminal PE
(ground) wire
must be done in order that in
clamp to the piece to be cut or to the metallic
workbench. Take following precautions:
•
Verify that there is a good electrical contact
particularly if insulated or oxidated coated
sheets are cut.
•
Make ground connections as close as possi-
ble to the cutting area. The use of the metallic
structures which are not part of the workpie-
ce, such as the return cable of the cutting
current, may endanger the safety system and
give poor cutting results.
•
Do not make a ground connection on the pie-
ce which has to be removed.
TORCH CONNECTION
or
Ensure unit is off and unpluged from the power
receptacle.
Figure 11
Supplied torch, manual or automatic, has a quick
connection system called "H Fit" . Correctly align the
"H Fit" pins and connect it to the connector on the
front panel of the unit by handscrewing the plastic
ring.
WARNING!: Before starting the cutting
operations verify that the parts are pro-
perly assembled by inspecting the head of
the torch as described on paragraph "Torch
Maintenance".
TORCH CONSUMABLE PARTS MOUNTING
Position the torch with the outside protection nozzle
facing upward to prevent these parts from falling out
when the nozzle is removed.
WARNING: Wait the torch has completely
cooled before replacing torch parts to avoid
any damage to the torch head.
To change the torch consumable parts use the
following procedure:
1.
Unscrew and remove the shield cup from the
Torch Head Assembly.
2.
Remove the tip, gas distributor, and electrode.
3.
Install the electrode, gas distributor, and tip.
Choose the correct consumable parts, refer
to the paragraph "Torch consumable parts
selection".
4.
Hand tighten the shield cup until it is seated
on the torch head. If resistance is felt when
installing the cup, check the threads before
proceeding.
5.
if necessary, install also the spacer.
EN-7
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