MAWA-050A
6. Timing Chart
6-9
(5)
Touch Start (at occurrence of LOST)
The following is a timing chart for the case where the arc stops in the process of welding.
失火発生
起動信号 1ST
(中点移動開始)
起動信号 2ND
(溶接点移動開始)
タッチ
スタート
ヘッド
始点
H-READY入力
運転準備完了
H-ST1入力
初期電流開始信号
H-ST2入力
本通電開始信号
GAS入力
ガス出力開始信号
H-HEAD UP出力
ヘッド上昇信号
H-END出力
溶接終了信号
ガス用電磁弁
溶接点(初期電流)
中点
溶接点(本通電)
READY出力
(= M-READY出力)
SYNC OUT出力
溶接電流
END出力
GOOD/NG出力
タッチスタートヘッド
オプション入出力(ヘッド用)
溶接電源 入出力
※1
初期電流
パルス電流
※1
LOST出力
※10
1～200ms ※2
※3
1～200ms
※7
1～200ms
※8
1～200ms
※5
プリフロー設定時間
※4
約60ms
※9
1～200ms
※5
5ms ※6
*1 When using the optional touch start head, the start signals 1ST and 2ND are used for welding start.
*2 Start signal 1ST decision delay time. Refer to “4. (6)
(d) START signal input decision delay time.”
*3 Welding data creating time. About 60 ms for the first condition change or about 30 ms for the second or later change.
*4 After the initial current start signal H-ST1 is input, the initial current is started after the lapse of the pre-flow set time.
Touch start head
Start signal 1ST
(Start moving to
mid-point)
Start signal 2ND
(Start moving to
weld point)
Start point
Mid-point
Weld point
(MN welding)
Weld point
(INIT current)
H-READY input
Operation ready
H-ST1 input
Initial current start
H-ST2 input
Main welding start
GAS input
Gas output start
H-HEAD UP output
Head ascent
H-END output
Welding end
Solenoid valve for gas
READY output
(= M-READY output)
SYNC OUT output
Welding
current
*10 LOST output
END output
GOOD/NG output
LOST occurs
About 60 ms
Pre-flow set time
Pulse
current
Initial
current
Option I/O (for head)
Welding power supply I/O
Touch
start
head
