Description Of The Functions - Telwin MIG 215 AL Synergic Betriebsanleitung

3.3 WELDING CARBON STEEL
In order to weld these materials you must:
3.3.1 With gas protection
• Use a welding gas with a binary composition, usually
ARGON + CO with percentages of Argon ranging from
2
75% up. With this blend, the welding bead will be well
jointed and attractive.
Using pure CO as a protection gas will produce narrow
2
beads, with greater penetration but a considerably
increase in splatters.
• Use a welding wire of the same quality as the steel to be
welded. It is best to always use good quality wires,
avoiding welding with rusted wires that could cause
welding defects.
• Avoid welding rusted parts or those with oil or grease
stains.
3.4 WELDING STAINLESS STEEL
Series 300 stainless steels must be welded using a
protection gas with high Argon content, containing a small
percentage of O or carbon dioxide CO
2
2%) to stabilize the arc.
Do not touch the wire with your hands. It is important to
keep the welding area clean at all times, to avoid
contaminating the joint to be welded.
3.5 WELDING ALUMINIUM
In order to weld aluminium you must use:
• Pure Argon as the protection gas.
• A welding wire with a composition suitable for the base
material to be welded.
• Use mills and brushing machines specifically designed
for aluminium, and never use them for other materials.
• In order to weld aluminium you must use the torch
PUSH-PULL P3KP.
4 SERVICE FUNCTIONS
The abbreviations of these functions are shown on the
display G.
From within this menu, the operator may customize the
machine according to his needs.
To enter these functions press the key R and, while
holding it down, briefly press and release the key O;
release the key R when the message "dSp" appears.
The same movement is used to exit these functions and
return to the welding programs. Press the torch trigger to
switch from one function to another.
Exiting the service functions confirms the changes made.
CAUTION. Welding is not possible from within the service
functions.

4.1 DESCRIPTION OF THE FUNCTIONS

• dSp (display)
Active only in pulsed synergic welding programs.
The display Q reads "A," which means that the display G in
normal conditions displays the Amperes. Pressing the key
O causes display Q to show SP (speed). This selection, in
welding conditions, will make display G show the wire
speed in meters per minute. NOTE: The speed will be
shown before welding, because after welding the display
G shows the current used and LED A remains lit.
• Job
Active in all welding programs.
The display Q reads "0", LED L is lit, and the machine is
ready for continuous welding. Pressing the key O causes
LED L to shut off, and display Q reads "1"; LEDs C and M
light, and the machine is ready for dash welding. Pressing
the key O again makes the display Q read "2"; LED M
shuts off and LED C remains lit, indicating that the
machine is ready for spot-welding.
• 2 - 4 (manual-automatic)
The display Q shows the number 2 = two-stage = manual
welding.
If the key O is pressed, display Q shows the number 4 =
4-stage = Automatic.
• (HSA) Automatic Hot Start
Active only in pulsed synergic welding programs
Caution: If the function HSA is activated, the function
3L is automatically not included.
(approximately Display Q shows the message OF =OFF = Off Pressing
2
the key O causes the display Q to show the message On
= Active.
If this function is activated, pressing the torch trigger
causes the following messages to appear in sequence:
-
-
-
If this function is not activated, pressing the torch trigger
activates the function:
• 3L (three levels)
Active in pulsed synergic curves
function 3L is activated, the function HAS is
automatically not included.
Display Q shows the message OF =OFF = Off. Pressing
the key O causes the display Q to show the message On
= Active.
11
SC (Start current)
Range 1-20 (10-200%)
corresponding to the welding current set using knob
B in
the welding programs. Manufacturer setting 13
(130%). Changed using keys O and R.
Len (Duration)
This is the duration, expressed in seconds, of the
previously displayed start current.
Range 0.1-10 sec.,
Changed using keys O and R.
Slo (Slope)
Range 0.1-10 sec.,
Changed using keys O and R. Defines the interface
time between the first current (SC) and the welding
current set using knob B in the welding programs.
How it works in practice:
Welding takes place in manual mode (two stages).
The operator begins welding with the current
corresponding to the percentage greater than or less
than the wire speed set in SC (in this specific
instance, 30% higher). This current will have a
duration, in seconds, corresponding to the time set in
Len (in this specific instance, 0.7 sec), after which the
current will drop to the current set using knob B
(welding) in the time set with Slo (in this specific
instance, 0.5 sec). We recommended this function for
spot welding sheet aluminium.
of the wire speed
manufacturer setting
manufacturer setting
Caution: If the
0.7.
0.5.