Amada MAWA-300B-00-00, Руководство по эксплуатации, Страница: 131 / 168

MAWA-300B
6. Timing Chart
6-6
(6) Touch Start (air type welding head)
The following is a timing chart for the case where the air type welding head is used.
START入力
出力
READY出力
SYNC OUT
出力
H-CY VLV
ヘッド動作
END 出力
溶接電流
GOOD/NG出力
PURGE
ガス開始入力
ヘッド下降
ヘッド上昇
約10ms
1～200ms ※1
※2
1～200ms ※3
1～200ms ※4
※5
初期電流設定時間
プリフロー アフターフロー
設定時間 設定時間
*1 Set value of “START signal input decision delay time.” Refer to “4. (6) Switch Select Screen.”
*2 Welding data creating time (approx. 60 ms for the first condition change or approx. 30 ms for the second or later change).
Refer to “4. (6) Switch Select Screen.”
*3 Set value of “END signal output time.” Refer to “4. (6) Switch Select Screen.”
*4 Set value of “GOOD/NG signal output time.” Refer to “4. (6) Switch Select Screen.”
*5 It becomes about 1.3 s when the High speed SCH change (No Wave) is OFF and about 100 ms when it is ON. Also, it takes
about 1.7 s when the current flows when ENVELOPE in the Limit output judgment on the Monitor select screen is ON. Refer to
“4. (11) Monitor Select Screen.”
Remarks
Connect the H-CY VLV output signal (Refer to “2. (2)-8 Connection with the torch.”) of the option I/O
connector on the rear panel to the solenoid valve of the air type welding head.
Set the pre-flow time, initial current time and initial current according to the head descent/ascent time,
distance between electrode and workpiece, production tact, etc. so that conditioning may be
performed. (In the case shown in the above figure, the timing of
1
of the pre-flow time can be
shortened up to the timing of
2
. And the timing of
3
of the initial current time can be shortened up
to the timing of
4
.)
START input
READY output
SYNC OUT
output
PURGE
Gas start input
H-CY VLV output
Head operation
Welding current
END output
GOOD/NG
output
Pre-flow
set time
Approx. 10 ms
Head descent
Head ascent
Initial current set time
After-flow set
time