S
ETTING
I
NTERNAL
F
UNCTIONS
W
ELDING
C
ONDITION
C
HAPTER
6
96
6.7.2.37 F60: Fine adjustment of pulse peak current
This function allows fine adjustment of the standard pulse peak current; by setting the adjustment value, finely adjusted
pulse peak current can be obtained.
Moreover, in the pulse condition of the wave pulse welding at HIGH side, fine adjustment is available to the standard
pulse peak current at HIGH side by setting the adjustment value.
Example of current waveform of wave pulse welding (
6.7.2.42
-
F65: Fine adjustment of L base current)
Set the adjustment value in the range of -150 to 150 A.
<Fine adjustment of unit pulse condition>
The unit pulse conditions (such as pulse peak current, pulse peak time, and base current) at pulse welding are properly
set according to welding method or wire diameter.
Using internal functions F60 to F65 enables change on the unit pulse conditions according to the wire type or welding style.
•
Fine adjustment value display/Absolute value display in unit pulse condition
During the setting of internal functions F60 to F65, pressing the DISPLAY CHANGE key enables switching the display
of fine adjustment value/absolute values. The LED of DISPLAY CHANGE key gives information which value is
currently displayed.
– When LED is OFF: Fine adjustment value is displayed (Adjusted value is displayed on the left digital
meter))
– When LED is ON: Absolute value is displayed (Values adjusted from the standard value is displayed
on the left digital meter))
•
For optimum fine adjustment:
For fine adjustment of unit pulse condition, first adjust the pulse peak time.
– When large droplet and unstable arc (droplet transfer) occurs, adjust to a longer pulse peak time.
– Adjust to a shorter pulse peak time when tip of wire becomes sharp and extremely strong arc occurs.
For more improvement, adjust the pulse peak current following the same steps as pulse peak time
adjustment.
T I P S
•
Maximum pulse peak current which can be output varies depending on the type
(capability) of welding power source or arc load.
•
When the pulse peak current finely adjusted exceeds the maximum pulse peak current,
the preset pulse peak current is not output.
6.7.2.38 F61: Fine adjustment of pulse peak time
This function allows fine adjustment of the standard pulse peak time; by setting the adjustment value, finely adjusted
pulse peak time can be obtained.
Moreover, in the pulse condition of the wave pulse welding at HIGH side, fine adjustment is available to the standard
pulse peak time at HIGH side by setting the adjustment value.
Example of current waveform of wave pulse welding (
6.7.2.42
-
F65: Fine adjustment of L base current)
Set the adjustment value in the range of -1.5 to 1.5 ms.
Fine adjustment of unit pulse condition (
6.7.2.37
-
F60: Fine adjustment of pulse peak current, <Fine adjustment of unit
pulse condition>)
Example of current waveform of wave pulse welding (
6.7.2.42
-
F65: Fine adjustment of L base current)
6.7.2.39 F62: Fine adjustment of base current
This function allows fine adjustment of the standard base current; by setting the adjustment value, finely adjusted base
current can be obtained.
Set the adjustment value in the range of -60 to 60 A.
Fine adjustment of unit pulse condition (
6.7.2.37
-
F60: Fine adjustment of pulse peak current, <Fine adjustment of unit
pulse condition>)
