ERRORE. LO STILE NON È DEFINITO.
ERRORE. LO STILE NON È DEFINITO.
ERRORE. LO STILE NON È DEFINITO.
SAFEX C
2
E
- 22
Maintenance work on electrical equipment must be entrusted to persons qualified to do
such work (see SAFETY INSTRUCTIONS).
CAUSE
REMEDY
WELDING CURRENT REMAINS MINIMUM
ο
Thermal protection open due to excessive overheating
(for SAFEX C2)
+
Check for AC voltage between pins 16 and 12. If not,
wait for generator to cool down.
ο
Defective potentiometer
+
Check potentiometer. Ohmmeter position of
multimeter, potentiometer resistance should vary from
0 to 60
Ω
.
ο
Auxiliary bridge rectifier defective
+
Check for dc voltage between pins 22 and 23 for
SAFEX C2.
WELDING CURRENT TOO HIGH
ο
Potentiometer defective
+
Check as in 2.
WELDING CURRENT REMAINS
ο
See case "Defective potentiometer"
+
See case "Defective potentiometer"
ο
Saturation chock defective
+
Check that as voltages at terminals of 3 transducer
phases are identical.
ABNORMAL ARC PROJECTIONS AND RECTIFIER HUM ARC STARTING DIFFICULT
ο
Diode open-circuit
+
Check power diodes on-by-one.
DIFFICULT ARC STRIKING
ο
No-load voltage too low
+
Check the network voltage and power-source
coupling.
For all servicing operations in the power-source outside the points mentioned above :
CALL IN A SPECIALISED TECHNICIAN
