Explanation Of The Technical Specifications Listed On The Machine Plate - Elettro TIG 157 Betriebsanleitung

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 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.
N° Serial number, which must be indicated on any
type of request regarding the welding machine.
IEC60974-1 This welding machine is manufactured according
IEC60974-10 to this international standards
Cl. A Machine for professional and industrial use
Single-phase static transformer-rectifier 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
INSTRUCTION MANUAL FOR ARC WELDING MACHINES
2.
1- 50/60Hz 0- 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
1
current 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.
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 allowable
temperatures are exceeded. Under these conditions the fan
keeps running and the LED S lights.
2.3.2. Block protections
This welding machine is equipped with various safety
devices that stop the machine before it can suffer damage.
The machine stop is signalled by the flashing red LED (R).
When this occurs, it signals:
1) During the start-up phase, the power status of the
machine.
2) After the start-up phase, incorrect supply voltage.
3) With the machine running, that the voltage has fallen
below 118V.
4) With the machine running, that the supply voltage is
above 300V.
5) During welding, that the voltage exceeds 300V.
To restore operation, check the voltage. Then shut off the A3
switch, wait 5 seconds, and switch it on again. If the problem
has been corrected, the weIding machine will begin operating
again.
NOTE: if the supply voltage is below 170V at start-up, no
LED will light and the fan is powered.
If the message E2 appears on the display, the machine
requires technical intervention.
2.3.3 PASSWORD
This equipment is protected against the use on behalf of
unauthorised personnel through the request, on ignition, of a
password.
To activate the Password function, press the I key and then,
holding it down, press the W key. Hold both keys down until
the message PSS is displayed on display Q.
By means of the knob P put on 1, confirm by pressing the
key W for 3 seconds; when igniting the machine, the writing
PSS will appear on display Q and with knob P insert the
password (displayed on display Q) and confirm by holding
the W key down.
If the code is incorrect, the generator will block, displaying
the writing E72 and to insert the password again, it is
necessary to switch the generator off and on.
The password code is supplied together with the machine
and cannot be changed.
It is recommended to keep it separate, and in case of loss,
contact the after-sales assistance.
The generator leaves the factory with the PSS function on
OFF.
2.3.4 Motor-driven generators
They must have an electronic regulator of the tension, a
power equal to or greater than 4,5 kVA for item 157 and 5
kVA for item 159 (single-phase), and must not deliver a
voltage greater than 260V.
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