Würth TIG 200S PULSE Originalbetriebsanleitung Seite 28

Welding regulations parameter table (only for reference)
Material Designe
Mode
Type d Joint
Vertical
Joint
Stainless
DC
V groove
Steel
X groove
Arc Carbon
Joint
weelding steel
Common faults and solving methods
No. Breakdown Analysis
Cooling fan broken
Cooling fan
1
Not work
Cable broken/fallen off
Torch switch broken
No piloting
2
Main PC board broken
high frequency
Cable broken/fallen off
No Argon input
No Argon
Main PC board broken
3
output
Electromagnetism Valve broken
Gas path blocked
Overheat inside the machine
Protection
4
Thermal relay broken
Indicator On
Over/Lack voltage more Than 15%
Relevant potentiometer broken
Panel knob not
5
Main PC board broken
adjustable
Cable broken/fallen off
Digital Amp meter broken
No display on
6 Cable broken/fallen off
the AMP meter
Main PC board broken
Wrong connection between torch and welder
Arc piloting not
7
Argon not pure
smooth
Tungsten electrode or pin broken
First turning on after power long time (2days more)
8
Power trip
off
9
Others
28
Trouble Shooting
WORK Welding
Wire Dia
Thickne Current
Φ (mm)
ss (mm) (A)
1.6∼3.0 50∼90
1.6∼2.5
> 3.0∼6.0 70∼120
> 6.0∼12 2.5∼3.2 100∼150
≤ 4 3.2 160∼210
4∼12 3∼4 210∼270
> 12 ≥ 4 260∼300
Tungste n
Argon Flow
Polarity Stick Dia
(dm /min)
3
Φ (mm)
1.0
8∼12
DC
1.6
Positive
10∼14 2.4
/ /
/ /
/ /
Solutions
Replace the fan
Find the disconnected wire and Connect reliably
Replace the torch
Replace the PC board
Find the disconnected wire and Connect reliably
Check the flow meter and resume supplying gas to the
welder
Replace the PC board
Change the electromagnetism valve
Clear the eyewinker and dredge the gas path
Become normal after the inside temperature reduced
Replace the thermal relay
Become normal after voltage ok
Replace the potentiometer
Replace the PC board
Find the disconnected wire and Connect reliably
Change the meter
Find the disconnected wire and Connect reliably
Replace the PC board
Check and correct according the manual
Use 99.99% pure Argon
Use qualified Tungsten electrode
Not fault, trip caused by the charging filter capacitor in
the main board, return on the power switch
Please contact with the supplier/manufactuer
Top Dia
Angle
Φ (mm)
12∼20° 0.12∼0.25
25∼30° 0.50∼0.75
35∼45° 0.75∼1.10
/ /
/ /
/ /