IMPORTANT: READ THIS MANUAL AND THE "SAFETY
RULES" MANUAL CAREFULLY BEFORE INSTALLING,
USING, OR SERVICING THE WELDING MACHINE, PAYING
SPECIAL ATTENTION TO SAFETY RULES.
CONTACT YOUR DEALER IF YOU DO NOT FULLY
UNDERSTAND THESE INSTRUCTIONS.
1 FOREWORD
This equipment must be used solely for welding operations. It
must not be used to defrost pipes.
It is also essential to pay special attention to the "SAFETY
RULES" Manual. The symbols opposite paragraphs highlight
critical situations and refer to practical tips and basic
information.
Both manuals must be stored in a place familiar to all users for
the entire operative life-span of the machine, checked
whenever the users are in doubt and used to order spare
parts.
2 GENERAL DESCRIPTIONS
2.1 SPECIFICATIONS
This welding machine is a constant current power source built
using INVERTER technology, designed to weld coated (not
including cellulosic) electrodes and for TIG procedures, with
contact starting and high frequency.
It must not be used to defrost pipes.
2.2
EXPLANATION OF THE TECHNICAL
SPECIFICATIONS ON THE MACHINE DATA PLATE.
N°
Serial number, which must be quoted in any
inquiry regarding the welding machine.
Three
phase
frequency converter.
Drooping characteristic.
MMA
Suitable for welding with coated electrodes.
TIG
Suitable for TIG welding.
U0
Secondary open-circuit voltage
X
Duty cycle percentage. % of 10 minutes during
which the welding machine may run at a certain
current without overheating.
I2
Welding current
U2
Secondary voltage with current I2
U1
Rated supply voltage
3~ 50/60Hz 50- or 60-Hz three-phase power supply
INSTRUCTION MANUAL FOR ARC WELDING MACHINES
static
transformer-rectifier
l1 max
Maximum value of the absorbed current.
l1 eff
Maximum value of the actual current
absorbed, considering the duty cycle factor.
IP23C
Case protection class, making the equipment
suitable for outdoors use in the rain.
C: The added letter C means that
the equipment is protected against access
to the live parts of the power circuit with
a tool (diameter 2.5 mm).
Suitable for hazardous environments.
NOTES: The welding machine has also been designed for use
in environments with a pollution rating of 3. (See IEC 664).
2.3 DESCRIPTION OF PROTECTIVE DEVICES
2.3.1 Thermal protection
This machine is protected by a temperature probe, which
prevents the machine from operating if the permitted
temperatures are exceeded. When the thermostat is tripped
the message "OPn" appears on the display E1 on the control
panel.
2.3.2 - Block protection.
This welding machine is equipped with various safety devices
that stop the machine before it can suffer any damage. When
any protection device is tripped, the message "Err" appears on
the display E1 along with a number that appears on the display
H1.
If a low water level is detected for the cooling unit the
abbreviation H2O flashes on the display E1.
3 INSTALLATION
Make sure that the supply voltage matches the voltage
indicated on the specifications plate of the welding machine.
Use a plug of adequate capacity, and ensure that the
yellow/green lead of the power supply cable is connected to
the earth jack.
The capacity of the overload cutout switch or fuses installed in
series with the power supply must be equivalent to the
absorbed current I1 of the machine.
3.1. START-UP
Only skilled personnel should install the machine. All
connections must be carried out according to current
regulations, and in full observance of safety law provisions
(CEI 26-23 / IEC-TS 62081).
3.2 DESCRIPTION OF THE EQUIPMENT (Pict.1).
A2)
Power cord.
B2)
Cooling unit outlet.
C2)
Cooling unit connector.
D2)
Fuse holder T-2 A.
E2)
Gas supply fitting.
L1)
Connector type DB9 (RS 232)
To be used for updating the microprocessor
software.
V1)
TIG torch trigger connector.
Connect wires of torch trigger to pins 1 and 9.
W1)
Fitting (1/4 gas).
This is where the gas hose of the TIG welding
torch must be connected.
X1)
Negative output terminal (-).
Y1)
Positive output terminal (+).
Z1)
Main switch.
3.3 PANEL DESCRIPTION (Pict. 2).
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