Miller Auto-Axcess E Digital, Owner'S Manual

Page: 61 / 164

General
OM-257 675 Page 55
9-14. Weld Cycle Timing Charts
These charts illustrate the operation of gas valve, motor speed, voltage/arc length control, and arc detected.
1. Pressing the start button.
2. Preflow time begins if the programmed parameters in the Auto-Axcess are used.
3. Start wire feed begins at run-in speed until an arc is established. This is also the point that the arc detected signal pulls in when the current
reaches 50% of expected current and arc voltage is between 20 to 60 volts DC.
4. Start time begins if the programmed parameters in the Auto-Axcess are used.
5. Weld parameters from the program are used for the welding operation.
6. Crater time begins if the programmed parameters in the Auto-Axcess are used.
7. End routines that started at beginning of welding operation, including Sharp start routine and stick check routine (this operation runs for approx-
imately 250 to 500 milliseconds)
8. End of the welding arc and the point that arc detected signal opens.
9. Postflow time begins if the programmed parameters in the Auto-Axcess are used.
1
2
3
4
5
6
7
8
9
1
9
Representative Of
Possible MIG Arc
Voltages Using
Start And Crater
On
Off
Gas
Representative Of
Possible Wire Feed
Speed Values
Arc Detected
2
5
6
7
3
0 IPM
100 IPM
300 IPM
350 IPM
300 IPM
2
3
6
7
5
3
On
Off
7
8
0 VDC
27.5 VDC
24 VDC
20 VDC