Stel 601267000L, Инструкция по эксплуатации, Страница: 15 / 38

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To adjust the pulse parameters, press the ref
button 9 to enter the PULSE PARAMETERS
screen.
Adjustable parameters:
-Frequency (pulse frequency) adjustable from 0.4
to 5 Hz.
-Duty cycle adjustable from 10 to 90%.
-Ibase current (base current) adjustable from 10 to
90%.
To switch from one function to another press the
SELECT button (ref.8).
V.R.D. (ONLY IN MMA MODE)
The initials V.R.D. stand for VOLTAGE
REDUCTION DEVICE, which is a system for
reducing the no-load voltage (OCV). When the
V.R.D. is installed in a welding machine it reduces
the maximum no-load voltage to a safety voltage
which is normally less than 18V.
- The V.R.D. is used as an additional aid for
operator safety.
- The procedures for safety at work must always be
carried out with attention.
ACTIVATION OF V.R.D. (ONLY ON THE
GENERATOR)
1) Switch on the welding machine;
2) Hold down button
Select Mode placed on the
generator for about 4 seconds, then release the
button; the led indicating electrode mode start
blinking (ref.1) (V.R.D. FUNCTION ON Vout 18V).
VRD mode remains activated when switching the
machine off and on again.
DEACTIVATION OF V.R.D. (ONLY ON THE
GENERATOR)
1) Switch on the welding machine.;
2) Hold down button
Select Mode placed on the
generator for about 4 seconds, then release the
button; the led indicating electrode mode remains
lit with a fixed light ref.1 (V.R.D. FUNCTION
deactivated). VRD mode remains deactivated
when switching the machine off and on again.
PREPARING FOR MIG
WELDING WITH GAS
a
Indication of the chosen program;
b Welding current;
c Signal of water cooler enabled;
d Signal of double pulsation enabled;
e Access to SIN/MAN menu;
f Access to JOB LIST menu;
g Synergic voltage adjustment;
h Access to
DOBLE PULSE
menu;
i Access to SETUP menu;
j Signal of spool-gun torch enabled;
k Wire speed;
l Material thickness;
m Synergic voltage;
1) Respect the indications given previously
concerning primary connection and installation.
2) Connect the earth cable to the socket of the
machine. Negative polarity ( - )
3) Connect the cable that exit from the front of the
machine to the positive socket ( + )
4) Connect the torch coupling to the centralised
euro
socket of the machine. Positive polarity ( + ).
5) Connect the gas cylinder to the proper coupling
provided on the rear panel of the machine, it is
marked with “EURO”.
6) Load the wire, opening the side door and fitting
the bobbin on the reel provided.
WARNING
WELDING WIRE AND DRIVE PARTS FOR THE
FIRST
4 SECONDS ARE AT WELDING
VOLTAGE.
KEEP HANDS AWAY.
Insert the wire in the wire feeder, making it adhere
to the race of the roller (ATTENTION: the roller has
two races because by turning it over it can be used
for another size of wire. Read the paragraph Rolls
Specifications ).
When changing the section of the wire it is
necessary to change the rollers and the current
supply pipe (that is the end part of the torch from
which you can see the wire protruding).
Unscrew the outside end of the torch (nozzle) and
the current supply pipe to facilitate the passage of
the wire.
Unwind the torch cable so that the wire makes the
least possible number of curves .
Insert the plug in a suitable power socket.
Close the pressing roller, switch on the machine
turning the line switch to “ON” position, press the
wire advance button to make the feeding motor run
until the wire comes out of the torch (keep the side
door closed while performing this operation).
Switch off the machine, turning the line switch to
“OFF” position.