9
U
2
Secondary voltage with current I
2.
U
1
Rated supply voltage.
1- 50/60Hz 0- or 60-Hz single-phase power supply.
I
1
max.
This is the maximum value of the absorbed
current.
I
1
eff.
This is the maximum value of the actual 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 icon
appears on the display.
2.3.2. Block protections
This welding machine is equipped with various safety devices
that stop the machine before it can suffer damage.
The symbol
appears on the display when the machine
stops. 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 switch, wait
5 seconds, and switch it on again. If the problem has been
corrected, the weIding machine will begin operating again.
6) 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: when
appears on the
display upon start-up, immediately press encoder
S1
, and select
the icon by turning the encoder.
The user is prompted to log in when the system is next started
up. Turn encoder
S1
to enter the correct password and then
press encoder
S1
to confirm it. If the code is incorrect, the power
source locks and
appears on the display. To re-enter the
password, turn the power source off and then on again. To
remove the password function when this is enabled, press the
encoder and when
appears on the display, select
. The
log-in function will not appear upon next start-up.
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 power source leaves the factory with the function disabled.
2.3.4. Disabled options
A padlock symbol next to a welding option indicates that it is
disabled. To enable it, select the required icon in the welding
options menu (fig. 3 ref. E) and enter the release code (optional).
2.3.5. Motor-driven generators
Single-phase: they must have an electronic regulator of the
tension, a power equal to or greater than 4,5 kVA for item 156
and item 166, than 5 kVA for item 158 and 6,5 kVA for tem 168,
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 2.5 mm2.
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 laws (regulation
CEI 26-10 -CENELEC HD 427).
3.2. TYPE OF WELDING
To select the welding method, turn encoder
S1
to select the
icon (fig. 3 ref. A) and press the encoder to access the menu
for selecting the welding method.
MMA ELECTRODE WELDING
This machine can smelt all types of coated electrodes apart
from the cellulosic type. The following parameters can be
modified for the MMA method.
Fig.4
- HOT START OPTION (fig. 4, ref. 1)
This is overcurrent that can be enabled to ignite the arc.
- WELDING CURRENT (fig. 4 ref. 2)
Turn encoder
S1
to set the correct welding current.
DC TIG WELDING (CONTACT IGNITION).
To ignite
the arc, press the torch button and touch the piece to be
welded with the tungsten electrode and lift it. The movement
should be firm and quick.
DC TIG WELDING (IGNITION AT HIGH
FREQUENCY).
To ignite the arc, press the torch button. A
pilot spark at high voltage/frequency ignites the arc.
AC-DC TIG WELDING (IGNITION AT HIGH
FREQUENCY): only items 166-168.
To ignite the arc, press
the torch button. A pilot spark at high voltage/frequency
ignites the arc.
3.3. SELECTING THE WELDING METHOD
Turn encoder
S1
to select the welding procedure (fig. 3 ref.
B) and press it. Select the required icon. For each method,
first select the pre-gas value (fig. 3 ref. C) and post-gas value
(fig. 3 ref. L).
2-TIME TIG WELDING (MANUAL)
Press the torch button. The current gradually increases,
during the previously set "slope up" time (fig. 3 ref. F), up to
the required value. When the button is released, the current
decreases, during the previously set "slope down" time (fig. 3
ref. M), down to the zero point.
4-TIME TIG WELDING (AUTOMATIC)
This program
differs from the previous one in that ignition and extinction
are controlled by pressing and releasing the button on the
TIG torch.
4-TIME TIG WELDING WITH TWO CURRENT
LEVELS (AUTOMATIC BI-LEVEL)
Before igniting the arc,
1
2
