Elettro MIG 245 DOUBLE TORCH Betriebsanleitung Seite 8

2.2 INTERNAL CONNECTIONS
• Any intervention carried out inside the welding machine must be
performed by qualified personnel.
• Before working inside the welding machine, make sure that the
plug is disconnected from the power mains.
• After final inspection, the welding machine is connected to the
voltage indicated on the power supply cable.
• To change the supply voltage, remove the right side panel and
arrange the voltage change terminal board connections as shown
in the picture.
• The supply voltage may not be changed on single-phase power
sources.
• Do not use the welding machine without its cover or side panels for
obvious safety reasons, and to avoid altering the cooling conditions
for internal components.
• Connect a plug suitable for the absorbed current to the power supply
cable.
• Connect the yellow-green wire of the machine mains to an efficient
grounding socket.
2.3 EXTERNAL CONNECTIONS
2.3.1 Connecting the mass clip.
• Connect the earth cable terminal to the socket of the welding
machine, and connect the earth clamp to the workpiece.
2.3.2 Positioning of the cylinders and gas pipe connection
• This welder has been designed to mount one cylinder no higher
than 1.65 m or two cylinders no higher than 1 m, in this last case, use
the special supplied collars R, in order not to create dangerous
conditions.
• The cylinders must be positioned on the welder cylinder holder,
fixing them in place using the supplied chains.
• Periodically check the state of wear of the chains, and if necessary
ask for them to be replaced.
• The cylinders must be equipped with a pressure reducer with a
flowmeter.
• Only after the cylinders have been positioned and fixed, connect the
gas pipes coming out of the panel on the back of the machine to the
respective pressure reducers, as shown in 3.1 letter J.
• Adjust the flow of gas to approx 10/12 litres per minute.
2.3.3 Welding torch connection
• This welder can be equipped with two welding torches fitted in
sides A and B.
• On side A, it is only possible to fit a traditional type torch.
• On side B, it is possible to fit a traditional type torch or a PUSH-
PULL WEL3105 torch that will automatically be recognised by the
machine and LED G will start flashing.
WEL2600
NOTE: given that when one torch is selected the functioning of the
other is automatically excluded, it is not possible to weld using both
torches at the same time.
3 DESCRIPTION OF CONTROLS (pict. 2)
3.1 CONTROLS ON THE FRONT OF THE MACHINE
A – Green LED
Signals that the display K shows the program number being used.
Check the instructions placed inside the mobile side panels for
knowing the diameter, wire type and gas corresponding to the
program number displayed. The value on the display K is always
preceded by the letter P.
B – Green LED.
Signals that the display K shows the spot welding or working time.
The length of this time is adjustable from 0.3 to 5 seconds. Setting the
time to 0 disables the function. The function is active only while
welding.
The value shown on the display K is always preceded by the letter T.
C – Green LED.
Signals that the display K shows the pause time between welding
segments. The length of this time is adjustable from 0.3 to 5 seconds.
Setting the time to 0 disables the function. The function is active only
if the welding time is not 0 and while welding. The value shown on
the display K is always preceded by the letter T.
D – Green LED (Burn-Back).
Signals that the display K shows the time for which the wire exits the
welding torch, after the operator has released the torch trigger. This
time ranges from 10 to 400 milliseconds. The value shown on the
display K is always preceded by the letter T.
E – Selection key.
Pressing this key, the LEDs A, B, C, D light in sequence.
From within the sub-menu activated by the 2 keys L – M, it selects
the Soft Start, WEL3105 motor speed variation, and post gas
functions.
F – Yellow LED.
Lights when the thermostat interrupts the welding machine operation.
G – Green LED.
Lights and shuts off intermittently when the connector of the
WEL3105 torch is connected to the connector O.
H – Earth socket
Where the earth cable is connected.
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