MAWA-050A
5. Welding
5-16
Operation and control flow of the fine weld mode
*1
*3
*2
*2
*2
*2
*2
*1
H-END signal output=ON
END signal output=ON
H-HEAD UP output=ON
H-END signal received
Pulse TIG welding power supply
Touch start head
Weld-point detecting sensor=OFF
Start of moving to mid-point
Gas output signal:GAS=ON
Welding start signal:2ND=ON
Welding start signal:1ST=ON
Main welding start signal:ST2=ON
Start of after-flow
End of after-flow
End of pre-flow set time
Start of pre-flow set time
Judgment signal output=ON
MH-TL01A, MH-109TA
Gas SOLV=OFF
Gas SOLV=ON
(Gas SOLV=continuously ON)
(Gas SOLV=continuously ON)
(Gas SOLV=continuously ON)
(Gas SOLV=continuously ON)
End of moving to mid-point
End of all welding processes
INIT current start signal:ST1=ON
: operation and control item
: operation and control flow
: interface process
End of moving to mid-point(ST point)
End of moving to weld point(INIT CUR)
End of moving to weld point(MN welding)
Start of moving to weld point(MN welding)
Start of moving to weld point(INIT CUR)
MAWA-050A(touch start)
Gas output signal rcvd.
Main welding start signal rcvd.
INIT CUR start time rcvd.
Start of moving to mid-point(ST point)
HEAD UP start signal rcvd.
Start of MN welding after INIT CUR
Weld-pt. detect sensor=ON
light-entered, LED ON
MH-TL01A: ON when
light-shielded, LED OFF
MH-109TA: ON when
*1: Gas flow time excluding the welding condition
*2: Operation and control contents of welding condition settings
*3: When the initial current time (FST) is set to 0 ms and the fine weld mode is set to ON, after moving from the weld point (initial
current), the main welding starts at the same time the weld-point detecting sensor is turned off (electrode is detached from
workpiece).
