Weco WF-104, Instruction Manual, Page: 36 / 96

WELD THE WORLD
C
od
. 006.0001.0940
16/04/2018 V.2.25 WF-104
WF-108
36
ENGLISH
welding (2nd level).
○ The time is determined by the operator on the basis of the time he presses the torch trigger during
the third time.
○ This is helpful to start the weld run with different heat input compared to steady state welding
conditions.
○ High values (e.g. 130 %) are generally required by aluminium alloys to create a weld pool.
• CRATER 3LEV
• Crater in 3 levels operation
○ The parameter adjusts the 3rd level wire feed rate as a percentage of the wire feed rate set for
welding (2nd level).
○ The time is determined by the operator on the basis of the time he presses the torch trigger during
the third time.
○ This is helpful to finish the weld run with different heat input compared to steady state welding
conditions.
○ This function is generally required with aluminium alloys, in which the final crater must be filled.
- Consequences of a lower value:
• Less formation of the welding final crater (crater filler).
• SLOPE 3LEV 1
• Initial slope in 3-level operation
○ The parameter controls the slope time connecting the HOT START level and the welding level.
○ The setting is dependent on the specific needs of the operator.
○ Values from 0.5 s to 1.0 s are suitable for the vast majority of applications.
• SLOPE 3LEV 2
• Final slope in 3-level operation
○ The parameter controls the slope time connecting the welding level and the crater filler level.
○ The setting is dependent on the specific needs of the operator.
○ Values from 0.5 s to 1.0 s are suitable for the vast majority of applications.
• FREQ 2PULS
• Double pulsed frequency
○ This parameter adjusts the frequency of alternation of the two wire feed rates set with RANGE
2PULS parameter.
○ The setting is dependent on the specific needs of the operator.
○ The best results are obtained with frequencies of approximately 1.5 Hertz.
• RANGE 2PULS
• Double pulsed range
○ This parameter generates the two wire feed rates (high and low) utilised in double pulsed mode,
which alternate with the frequency defined by the parameter FREQ 2PULS.
○ Values that are not excessively high are preferable for stability of the welding arc.
○ This value is expressed as a percentage of the set wire feed rate and it determines the high and
low feed rate values in compliance with the following rule:
○ High wire feed rate= wire feed rate (D1) + [wire feed rate (D1)*RANGE 2PULS]/2
○ Low wire feed rate= wire feed rate (D1) - [wire feed rate (D1)*RANGE 2PULS]/2
○ Example: if a rate of 5 m/min is set on the main adjustment (on display D1) (average feed rate)
and 40 % on RANGE 2PULS (on display D4), the wire feed rate will vary between 4 m/min (low
feed rate) and 6 m/min (high feed rate).