REHM TIGER DIGITAL 180 AC/DC ULTRA, Руководство по эксплуатации

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Function description
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5.2 Corner menu operating mode
(top right)
The menu Operating modes [ BF3 ] is activated by pressing the button at the top
right of the keypad Fig.8 . This allows the selection of the operating modes
1. 2 cycle with HF ignition (see Section 5.3)
2. 4 cycle with HF ignition (see Section 5.3)
3. 2 cycle without HF LiftArc
4. 4 cycle without HF LiftArc
5. Spot
6. Interval
.
Functions may be limited depending of the equipment features.
5.2.1 2 cycle operating mode
The 2 cycle mode is recommended for fast, controlled tacking and manual spot
welding.

1. cycle: Actuate the torch trigger
The protective gas solenoid valve opens
After the set gas pre-flow time has expired the arc is ignited
The welding current automatically adjusts to the selected slope-up time, starting
from the set starting current and rising to the preselected value for I
1
.

2. cycle: Release the torch trigger
The current reduces to the set end crater value at the preselected current slope-
down time and then automatically switches off.
The inert gas flow is according to the selected gas post-flow value.
Peculiarities:
to the 2nd cycle
Actuating the torch trigger a second time during slope-
down of the welding current jumps the welding current back to I
1
.
This process is also known as manual pulsing (see Section 6.1.9).
Actuating the torch trigger 2 (BT2) extinguishes the arc.
Gas valve
t
t
t
Welding current
Torch trigger 1
Fig.10 Process for 2 cycle welding