In Mig Or Tig Mode, Arc Difficult To Strike, The Arc Shuts Off Immediately After Striking (Stuttering Start-Up); In Synergic Mode, The Welding Quality Is Not Satisfactory, The Wire Speed Is Not Suited To The Output Current; In Mma, Arc Difficult To Strike And/Or Unsatisfactory Welding Quality - Cebora SOUND MIG 3840/T Pulse Service Manual

CEBORA S.p.A.
3.5.10 - In MIG or TIG mode, arc difficult to strike, the arc shuts off immediately after
striking (stuttering start-up).
3.5.11 - In synergic mode, the welding quality is not satisfactory, the wire speed is not
suited to the output current.

3.5.12 - In MMA, arc difficult to strike and/or unsatisfactory welding quality.

To assist welding starts, the work programs include the "Hot-Start", "Soft Start" and
"Impedance" functions, available depending on the process selected and adjustable using the
keys on the control panel (324) (see Instruction Manual).
In particular:
- the "Hot-Start" function is available in synergic MIG, TIG and MMA.
- the "Soft Start" and "Impedance" functions are available in MIG processes.
In MIG mode, the parameters entered in the "synergic" MIG programs are determined based
on experience, thus some operators may find conditions to be optimal while others may need to
make slight changes. This is why it is possible to change the ratio between wire speed and
welding current in synergic MIG programs (see Instruction Manual).
In MMA, should you find it difficult to determine the proper balance between welding with
too much splattering or an electrode that tends to stick to the workpiece, despite carefully
adjusting the welding current, the "Arc-force" function is available to work based on the arc
voltage, and automatically modulates the welding current for faster detachment of the welding
drop. This function may be selected using the key (AH) and adjusted using the keys (AX) and
(AM) on control panel (324) (see Instruction Manual).
In all of these situations, when there are problems striking the arc or welding difficulties
despite careful management of the parameters available on the control panel, we recommend that
you:
Make sure that the parameters selected reflect the actual current welding conditions.
−
Make sure that the adjustments are working properly, by carrying out welding tests with
−
different parameter settings or switching the working program with a similar one, if available,
to determine the practical welding differences in the different settings. If changes to the
parameters do not correspond to welding differences, or if you encounter problems in
selecting the parameters, make sure the software versions installed in the welding system are
compatible. Upgrade if necessary by connecting to the Cebora Web site (see par. 2.3 -
Description of SOUND MIG 3840/T Pulse system (art. 287) and instructions on the Web
site).
− Make sure that the power source is working properly, performing if necessary the "open
circuit operation" test in par. 3.5.8 and "operation on resistive load" test in par. 3.5.9.
− Check the compatibility of the components being used (electrode clamp, torch, type of contact
tip, wire type and diameter, type of gas, etc.) with the type of welding being carried out.
− Check the wear status of the torch and its components, replacing if necessary.
− Replace the control board (543) and/or motor control board (232) and/or control panel (324).
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