MAWA-050A
4. Explanation of Screens
4-18
(f) Enable START Switch
At “ON”, the “START button” on the front panel is enabled.
[Initial value: ON]
(g) Internal Gas Flow
This can select whether a gas flow operation is automatically controlled or not. At
“ON”, the solenoid valve is turned on/off in conjunction with the pre-flow/after-flow
time set on the Welding condition setting screen. However, when there is an input
from input terminal 4: GAS of “2. (3)-1-3 Option input/output connector” or input
terminal 11: PURGE of “2. (3)-1-1 Input connector”, a gas flow operation is performed
regardless of on/off setting.
[Initial value: ON]
(h) High speed SCH change (No Wave)
By hiding the waveform, the processing time for displaying the waveform is shorten
and conditions can be switched smoothly.
At ON, no waveform is displayed on the Monitor screen. The welding interval can
be shortened by omitting the waveform display process. At ON, the waveform can
be checked by pressing the waveform display switch in 4. (3) (o).
[Initial value: OFF]
(i) Fine Weld Mode
This can select whether the fine weld mode is used or not.
At ON, the fine weld mode is selected. At OFF, the auto mode is selected.
The fine weld mode / auto mode is the special welding mode when the torch drive
type is “MOTOR” and the initial current time FST is set to 0.
In the fine weld mode, the torch head moves down and it stops when the electrode
and the workpiece make contact, and the head starts moving up performing the main
welding immediately after the torch head moves up (no initial welding). This mode is
effective when welding a minute workpiece melted completely by the initial current or
shortening the weld time.
In the auto mode, the main welding performed when the head reaches the welding
point (main welding).
In the time axis of the waveform display for fine weld mode / auto mode, the initial
current time is fixed to 500 ms max. and the waveform is displayed on the Monitor
screen with the time obtained by adding the main welding time.
[Initial value: OFF]
(j) Screen return switch
Used to go to the Basic setting screen.
(k) Screen feed switch
Used to go to the Switch select screen (2/2).
