Messa In Servizio - Würth WWS 3-POWER Bedienungs- Und Wartungshandbuch

GB
7.0 WELDING DEFECTS AND MALFUNCTIONS 7.0 WELDING DEFECTS AND MALFUNCTIONS 7.0 WELDING DEFECTS AND MALFUNCTIONS 7.0 WELDING DEFECTS AND MALFUNCTIONS
7.1 POSSIBLE WELDING DEFECTS 7.1 POSSIBLE WELDING DEFECTS 7.1 POSSIBLE WELDING DEFECTS 7.1 POSSIBLE WELDING DEFECTS
DEFECT
CRACKS Acid electrode on steel with a high sulphur
content.
Excessive swinging of the electrode.
Distance between the parts to be welded is
too great.
Part being welded is cold.
POROSITY Material to be welded is dirty (e.g. oil, paint,
rust, oxides).
Insufficient current.
POOR PENETRATION Low current.
High welding speed.
Inverted polarity .
Electrode tilted in position opposite its
movement.
HIGH SPLASHING Excessive electrode inclination .
PROFILE DEFECTS Incorrect welding parameters.
Passing speed not linked with the needs of
the operative parameters.
Electrode inclination not constant during
welding.
ARC INSTABILITY Insufficient current.
Electrode with core not centred.
THE ELECTRODE MELTS
OBLIQUELY
Magnetic blowing phenomenon.
7.2 POSSIBLE MALFUNCTION 7.2 7.2 7.2 POSSIBLE MALFUNCTION POSSIBLE MALFUNCTIONS S S S POSSIBLE MALFUNCTION
PROBLEM
DOES NOT SWITCH ON -Incorrect primary connection.
-Faulty inverter card.
-Machine overheated (yellow led lit).
NO VOLTAGE AT OUTPUT
-Faulty inverter card.
-Low primary supply voltage.
INCORRECT OUTPUT -Faulty regulating potentiometer.
CURRENT
-Low primary supply voltage.
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CAUSES ADVICE
Use a basic electrode.
Move the edges to be welded closer
together.
Advance slowly at the start.
Decrease the welding current.
Cleaning the parts before welding is a
fundamental principle for obtaining good
welding seams.
Regulate the operative parameters and
improve preparation of the parts to be
welded.
Make the necessary corrections.
Respect the basic and general welding
principles.
Check the state of the electrode and the
connection of the earth cable.
Change the electrode.
Connect two earth cables to the opposite
sides of the part to be welded.
CAUSES REMEDY
-Check the primary connection.
-Apply to the nearest service centre.
-Wait for thermal reset.
-Apply to the nearest service centre.
-Apply to the nearest service centre.
-Check the distribution mains.
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5.0 MESSA IN SERVIZIO

5.0 MESSA IN SERVIZIO 5.0 MESSA IN SERVIZIO 5.0 MESSA IN SERVIZIO
5.1 COMANDI PANNELLO FRONTALE/REGOLAZIONI INTERNE 5.1 COMANDI PANNELLO FRONTALE/REGOLAZIONI INTERNE 5.1 COMANDI PANNELLO FRONTALE/REGOLAZIONI INTERNE 5.1 COMANDI PANNELLO FRONTALE/REGOLAZIONI INTERNE
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1 Led segnalazione allarme termico
2 Led segnalazione abilitazione alla saldatura
3 Led segnalazione macchina sotto tensione di linea
4 Led segnalazione saldatura elettrodo
5 Led segnalazione saldatura TIG lift
6 Led segnalazione saldatura Mig 2t
7 Led segnalazione saldatura Mig 4t
8 Pulsante selezione modalità di saldatura
9 Attacco euro centralizzato
10 Boccola di uscita negativa.
11 Boccola di uscita positiva.
12 Potenziometro di regolazione corrente/velocità filo
13 Potenziometro di regolazione tensione/spessore materiale
14 Led selezione sinergia filo 0.8 / 1.0
15 Pulsante selezione modalità sinergica
16 Vite Regolazione post-gas
17 Vite Regolazione Burn back
18 Pulsante per avanzamento filo
19 Pulsante per spurgo gas
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