Description Of Protective Devices - Elettro ARC Manuel D'instructions

INSTRUCTION MANUAL FOR ARC WELDING MACHINES
IMPORTANT: READ THIS MANUAL AND THE "SAFETY
RULES" MANUAL CAREFULLY BEFORE
USING, OR SERVICING THE WELDING MACHINE, PAYING
SPECIAL ATTENTION TO SAFETY RULES.
CONTACT YOUR DISTRIBUTOR IF YOU DO NOT FULLY
UNDERSTAND THESE INSTRUCTIONS.
1. PRECAUTIONS
This machine must be used for welding only. It must not be used
to defrost pipes.
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 place 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.
2. GENERAL DESCRIPTIONS
2.1. SPECIFICATIONS
This welding machine is a constant current power source built
using INVERTER technology, designed to weld covered
electrodes (not including cellulosic) and for TIG procedures, with
contact starting and high frequency.
2.2. EXPLANATION OF THE TECHNICAL SPECIFICATIONS
LISTED ON THE MACHINE PLATE.
IEC60974-1 This welding machine is manufactured
IEC60974-10 according to these international standards.
Cl. A Machine for professional and industrial use
N° Serial number, which must be indicated on any
type of request regarding the welding machine.
Single-phase
frequency converter.
Drooping-characteristic.
MMA Suitable for welding with covered electrodes.
TIG Suitable for TIG welding.
U Secondary open-circuit voltage.
0
X Duty cycle percentage. % of 10 minutes during
which the welding machine may run at a certain
current without overheating.
I Welding current.
2
U Secondary voltage with current I
2
U Rated supply voltage.
1
1- 50/60Hz 50- or 60-Hz single-phase power supply
I max. This is the maximum value of the absorbed
1
current.
I eff. This is the maximum value of the actual current
1
absorbed, considering the duty cycle.
IP23 Protection grade of the housing, approving the
equipment as suitable for use outdoors in the
rain.
Suitable for hazardous environments.
INSTALLING,
static transformer-rectifier
.
2

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 allowable
temperatures are exceeded. Under these conditions the fan
keeps running and the LED C7 lights.
2.3.2 Motor-driven generators
They must have an electronic regulator of the tension, a
power equal to or greater than 9.0 kVA and must not deliver
a voltage greater than 260V.
3. INSTALLATION
Make sure that the supply voltage matches the voltage
indicated on the specification plate of the welding machine.
The capacity of the overload cut-out switch or fuses installed
in series with the power supply must be equivalent to the
absorbed current I1 of the machine.
WARNING! Extension cords of up to 30m must have a cross-
section of at least 4.0 mm2.
3.1. START-UP
Only skilled personnel should install the machine. All
connections must be carried out according to current
standards and regulations, and in full observance of safety
laws (CEI 26-10 -CENELEC HD 427).
6
Cod. 381336 (02/2020)