Hypertherm HPR400XD - Stationary Pierce Timing Diagram

9
Figure 8 – Stationary pierce timing diagram
7
8
9
1 0
1
2
3
4
5
6
1 2
1 1
1 3
Time
Torch height
1 Pierce height
2 Transfer height
3 Cut height
4 Initial height sense
5 Arc transfer, shield flow switches from preflow to cutflow
6 Arc penetrates plate
7 Motion begins
8 Torch drops to cut height prior to beginning contour cut
9 Move to transfer height
10 Pierce delay
11 Move to pierce height
12 Lead-in
13 Move to cut height