CTR12000 Car-O-Liner
Group
AB
41644, EN - rev. 2, 2012-09
51
General information on troubleshooting and remedy actions.
Only qualified electricians are allowed to open up power source and mains
plug.
ATTENTION!
Prior to any work on open power source, disconnect the
machine from the mains and discharge the intermediate circuit.
Fault
Possible cause
Solution
Workpieces stick to the electrodes.
Excessive welding current.
Reduce welding power.
Unsuitable electrode caps.
Use correct caps.
Insufficient electrode pressure.
Increase contact pressure.
Poor welding spot.
Insufficient welding current, welding time and/or
energy applied.
Increase welding current and/or time,
create special program with suitably
adapted parameters, if necessary.
Electrode pressure is too high.
Reduce contact pressure.
Electrodes are in poor condition, diameter is too
large.
Clean electrodes, reshape and restore
correct dimensions, replace electrode
caps, if necessary.
Wrong program has been selected.
Correct selection.
Wrong adjustment of total material thickness.
Correct adjustment.
Poor sheet position, not close-lying.
Correct
Welding spatter
Color or dirt between the sheets.
Clean.
Poor contact between the workpieces or
between the workpiece and the electrode
Increase electrode pressure.
Excessive welding current, welding time and/or
energy applied.
Reduce welding current, energy and/or
time, create special program with suitably
adapted parameters, if need be.
Current slope-up time is too short.
Increase slope-up time.
Electrode diameter is too large, worn electrode. Clean electrodes, reshape and restore
correct dimensions, replace electrode
caps, if necessary.
Insufficient electrode pressure.
Increase electrode pressure.
Burnt spots or spots with craters or
imprints.
Excessive welding current, welding time and/or
energy applied.
Reduce welding current, energy and/or
time, create special program with suitably
adapted parameters, if need be.
Insufficient electrode pressure.
Increase electrode pressure.
Deformed electrode caps.
Clean electrodes, reshape and restore
correct dimensions, replace electrode
caps, if necessary.
Poor sheet position, not close-lying.
Correct.
DANGER