ArcOne Inverter Power Sources - Manual (Page 6)

SECTION 3 --- INSTALLATION PROCEDURE
3.1 UNPACKING AND SETUP
Unpack the unit and carefully inspect it for shipping damages. Any claims for damages which may have occurred in transit must
be filed by the purchaser with the carrier and in order not to loose any right to file such a claim no clean receipt should be signed
but a mention should be made to reserve the right to file a claim for transit damages that can be discovered only after
unpacking.
All communications regarding this equipment must indicate the model and serial number located on the back of the power
supply.
After unpacking place the unit in a properly ventilated, possibly undusted area, making sure that the air flow near the cooling
slots in not obstructed.
WARNING: it is extremely important not to restrict the air flow around the unit since this may cause the unit to over heat and
could possibly damage internal parts. Keep at least 200 mm of unrestricted space on all sides of the unit.
Do not Place any filter device or cover over the air intake slots of the power supply as this will void the warranty.
NOTE: if the unit is carried over shoulder make sure that the air intake slots on the frame are not obstructed.
3.2 STARTUP PROCEDURE
This unit must be installed by skilled personnel. All connections must conform to the existing rules and in full compliance with
safety regulations (CENELEC HD 427).
3.3 GENERAL NOTES
Before using this power supply, carefully read the CENELEC standards HD 407 and HD 433, check insulation of cables,
electrode holder clamp, sockets and plugs and make sure that the length and section of welding cables are compatible with
current used:
Up to 5 mt. cable section 16 mm
2 min.
From 5 mt. to 20 mt. cable section 25 mm 2 min.
From 20 mt. to 30 mt. cable section 35 mm 2 min.
SECTION 4 --- OPERATION
4.1 DESCRIPTION OF CONTROL PANEL
On the front panel one finds:
1. Current adjustment knob
2. Electrode and earth clamp cable connectors
3. Welding current LED indicator (ok if on)
4. AC power input fault (voltage outside the + - 10% of 220 V range) or overheating condition LED indicator (OK if off).
4.2 COATED ELECTRODE WELDING
This power supply is suitable for welding with all types of electrodes. For the cellulose ones (AWS 6010), only specific power
supply can be used, see the technical tables.
Use electrode holder clamps in compliance with the safety standards and without projecting tightening screws.
Make sure that the main switch on the back is on 0 position or that main supply plug is not inserted in main outlet then connect
welding cables in accordance with polarity indications given by the electrode manufacturer.
The welding circuit should not be deliberately placed in direct or indirect contact with protection wire if not on piece to be welded.
If earthing is deliberately made on the work piece by means of protection wire, the connection must be as direct as possible, with
the wire having a section at least equal to the welding current return wire and connected to the piece being worked on, in the
same place as the return wire, using the return wire terminal or a second earth terminal closely.
All possible precautions must be taken in order to avoid stray currents.
Check that the input supply voltage matches the voltage indicated on the power supply technical specification tag.
Connect main supply cable: when mounting a plug make sure that its capacity is adequate and that the yellow-green wire of the
mains cable is connected to the earth plug pin.
The capacity of the magnetothermic switch or the fuses in the mains supply line should be higher than or equal to current I
1
absorbed by the unit.
The absorbed current I
1
is determined by reading the technical specifications on the unit as corresponding to the main supply
voltage U
1
.
Any extension cord should have a section adequate for the absorbed current I
1
.
Turn on the power supply with the main switch on the back of the unit.
WARNING: ELECTRIC SHOCK CAN KILL.
Do not touch live electric parts.
Do not touch weld output terminals when unit is energized.
Do not touch torch or electrode and earth clamp at the same time.
Set current according to the electrode diameter, welding position and type of joint to be welded. When finished welding always
remember to turn the main switch off and to remove electrode from electrode holder.
4.3 TIG WELDING
This power supply is suitable for TIG welding stainless steel, iron and copper.
Connect earth cable wire to positive (+) pole of welding unit and connect terminal clamp to working piece as close as possible to
power supply, making sure there is a good electrical contact.
Use proper TIG torch and connect power wire to negative pole of welding unit.
The welding circuit should not be deliberately in direct or indirect contact with protection wire if not on piece to be welded.
If earthing is deliberately made on the workpiece by means of protection wire, the connection must be as direct as possible, with
the wire having a section at least equal to that of the welding current return wire and connected to the piece being worked on, in
the same place as the return wire, using the return wire terminal or a second earth terminal closely.
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