REHM INVERTIG.PRO 240 DC Betriebsanleitung Seite 113

Faults
Arc flic ckers and ju umps
Cause:
Electrod de and work k piece do n
working g temperatu re
Electrod de is badly pointed
No suita able electro ode
Arc is a a strange c colour
Cause:
No/too l little/incorre ect inert gas
Electrod de is dirty
Electro ode burns o off
Cause:
No inert t gas
Current t load too hi gh
Proport ion of Plus too high wh
with alte ernating cur rrent
Connec ctors for torc ch and earth
MMA w elding is se et
Unit is not pulsing g
Cause:
Pulse is s not activat ted
Values for I1 and I2 2 are the sa
Arc bre eaks away on ignition
Cause:
Ignition energy has s been set t
Electrod de is used o or dirty
not reach
s
hen welding g
h cable swa apped
ame
n
oo low
Solution:
Use thinne er electrode e
Sharpen e lectrode.
Change el ectrode
Solution:
Check
Sharpen
Solution:
Check
Use thicke er electrode
Use the Ba alance to in ncrease
the propor tion of Minu us
Connect th he correct w way round
Set TIG we elding
Solution:
Set T1 and d/or T2 puls se times
Change va alues
Solution:
Set the ign nition energy y or use a t
electrode
Sharpen e lectrode ag gain
GB
thinner
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