GYS KRONOS 250M Manuel D'utilisation page 27

User manual
USING THE TRIGGER
• 2T
t
Bouton principal
T1
t
Bouton principal
T1
• 4T
t
t
Bouton principal
T1 T2
Bouton principal
T1 T2
For dual button or dual trigger torches, the «high» trigger retains the same functionality as the single trigger torch . The «low» trigger is not active.
CONFIGURING THE SETTINGS
Units
t
End current %
Starting current %
t
Welding current A
Bouton principal
T1 T2
Cold current %
Bouton principal
T1 T2
Pulse duration s
Spot duration s
Crater-fill feature s
Frequency
Hz
frequency
Rising current s
Post-Gas s
Pre-Gas s
Stopping time s
Starting time s
Cold weather %
Access to some of the welding parameters depends on the selected display mode: Settings/Display mode: Easy or Expert. Refer to the HMI ma-
nual.
MANUAL GAS PURGE
The presence of oxygen in the torch can lead to a decrease in mechanical quality and can result in less corrosion resistance. To flush the gas from the
torch, press and hold button no. 1 and follow the on-screen procedure. Refer to the HMI manual.
MMA (SMAW) WELDING MODE
INSTALLATION AND GUIDANCE
• Plug the cables, electrode holder and earth clamp into the plug connections.
• Respect the electrical polarities and the strength of the welding power indicated on the electrode boxes.
• Remove the coated electrode from the electrode holder when the welding power source is not in use.
• The equipment is fitted with 3 inverter-specific features:
- Hot Start provides an overcurrent at the beginning of the welding process.
- Arc Force creates an overcurrent which prevents the electrode from sticking to the weld pool.
- The Anti-Stick technology makes it easier to unstick the electrode from the metal.
Translation of the original
instructions
t
t
T2
T2
t
t
T4
T3
T4
T3
<0.5s <0.5s >0.5s
<0.5s <0.5s >0.5s
t
This idling current is the next phase after the current is lowered.
This start-up bearing current is a warm-up phase before the current is raised.
t
Welding current.
T4
T3
Second welding current known as a «cold» welding current.
T4
T3
Manual or time-controlled spot pulse phase
Either manual or a set time.
Avoids cratering at the end of welding and the risk of cracking, particularly in light alloys.
Pulse frequency (setting guidelines):
- If welding with manual filler metal, then the F(Hz) is synchronised to the filler action,
- If the metal is thin and without filler (< 0.8mm), F(Hz) > 10Hz
- If welding in position, then F(Hz) < 100Hz
Allows a gradual increase in welding current.
Duration of the gas protection after the arc is extinguished. It protects the workpiece and the electrode from
oxidation during cooling.
When the torch is bled and the gas shield is created before ignition.
This idling time is a phase that comes after the current is lowered.
Starting time before the current is raised.
Pulsed hot current (I) time balance
T1 - The main button is pressed, the welding cycle starts (Pre-Gas,
I_Start, upslope and welding).
T2 - The main button is released, the welding cycle is stopped
(downslope, I_Stop, Post-Gas).
For two-button torches in T2 only, the secondary button is treated as
the main button.
T1 - The main button is pressed, the cycle starts from Pre-Gas and
stops at the I_Start phase.
T2 - The main button is released, the cycle continues to upslope
and welding.
T3 - The main button is pressed, the cycle goes to downslope and
stops in the I_Stop phase.
T4 - The main button is released, the cycle ends with the Post-Gas.
NB: for torches, double buttons and double button + potentiometer
=> «up/weld current» button turns on the potentiometer, the «down»
button turns it off.
KRONOS 250M
27