REHM FOCUS.ARC P 250, Руководство по эксплуатации

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Function description
27
Hotstart
current
t (s)
Current
[A]
Hotstart
Time
Welding
current
Hotstart
Slope
time
5.2.3 4 cycle operating mode
4 cycle welding is recommended for longer welding seams.
4 cycle operating mode procedure:

1. cycle Operate the torch trigger

The inert gas solenoid valve opens

After the set gas pre-flow time has expired the power unit is switched on

Welding voltage on

Wire feed runs at the initial wire feed speed

Arc is ignited after the welding wire contacts the workpiece

The feed switches to the set wire feed speed of the welding process

The welding current flow is at the set Hotstart value set for welding

2. cycle Release the torch trigger

The welding current is changed from the Hotstart value to the value set
for welding

3. cycle Operate the torch trigger

Actuating the torch trigger has no effect

4. cycle Release the torch trigger

Wire feed stops

Freeband and freeband control are executed

The inert gas is switched off after the gas post-flow time has expired
Figure 14: The 4 cycle operating mode procedure with Hotstart