23
EN
LED for set process is flashing
Cause:
Single-phase operation with a welding current greater than 140A
Remedy:
Select a welding current less than 140A and continue welding
Cause:
Phase failure
Remedy:
Check the mains lead
Poor weld properties
(severe spattering)
Cause:
Incorrect electrode polarity
Remedy:
Reverse electrode polarity (refer to manufacturer's instructions)
Cause:
Poor ground earth connection
Remedy:
Fasten earthing clamps directly to workpiece
Cause:
Setup parameters not ideal for selected welding process
Remedy:
Select best setting in Setup menu for selected process
TIG welding
Tungsten electrode melting - tungsten inclusions in base material during the ignition phase
Cause:
Incorrect tungsten electrode polarity
Remedy:
Connect TIG welding torch to negative pole
Cause:
Incorrect (or no) shielding gas
Remedy:
Use inert shielding gas (argon)
Cause:
Incorrect welding process selected
Remedy:
Select TIG welding or TIG pulsed arc welding process (TP 2500/3500 TIG)
Status indicators
Open circuit
Indicators shown on the right light up, VRD indicator flashes red
Cause:
Output voltage is greater than 110V
Remedy:
Switch machine off and on again;
if fault keeps recurring, have device serviced
Mains undervoltage or mains overvoltage
Indicators shown on the right light up, VRD indicator flashes red
Cause:
The mains voltage is outside the tolerance range
Remedy:
Check mains voltage, switch machine off and on again; if er-
ror keeps occurring, have machine serviced
