04/2014
Operating Manual E4-2800/4200/5200 / M4-3000/4000/5500
Page 27
4 – cycle
For welding longer seams. The torch trigger can be released during welding. The sequence
of cycles is specified by pre-set times in the welding process control.
➔
Time controlled processes
1
st
cycle Press torch trigger
Seq
ue
nc
e
1. Shield gas flows fort he pre-set time
(5) - (a)
2.
Arc ignites with pre-set creep-in speed
(5) -(b)
3. Welding with start energy for the pre-set time
(5) – (c)
4. Up-slope runs for the pre-set time
(5) – (d)
5. Welding with energy E1 while the torch trigger is pressed
(5) – (e)
2
nd
cycle Release torch trigger
Machine remains in sequence no. 5 – Welding with energy E1
3
rd
cycle Press torch trigger
Seq
ue
nc
e
1. Down-slope runs for the pre-set time
(5) - (h)
2. Welding with end crater energy for the pre-set time
(5) – (i)
3. Wire stops within the pre-set burn-back time
(5) - (k)
4. Arc is extinguished
5. Post-gas flows for the pre set time
(5) – (m)
4
th
cycle Release torch trigger
No further action
If at 1st cycle = sequence 1./3./4. and at 2nd cycle = sequence 1./2./5.
a time = 0 seconds is set, these steps are skipped.
