56 - Short-Circuit At The Output Lasts Too Long (Max. Allowable Duration = 1 Sec.); 60 - Current Too High Beyond The Maximum Allowable Limits (250 A); 73 - Display (G) Indicates Opn = Diode Group (56) High Temperature; 80 - Display (G) Indicates Opn = Wire Coil Cover Open - Cebora SOUND MIG 2035/M Pulse Service Manual

CEBORA S.p.A.
Check the wiring between connector J4 of control board (27) and current transducer (33), and
the power wiring between the "cathode" terminals of diode group (56) and the central adapter for
torch (38), and between the central transformer (30) socket, choke (29) and output terminal (F)
of the power source.
If you find defective connections, fix and replace any damaged components.
Carry out the CURRENT TRANSDUCER (33) POWER SUPPLY TEST and POWER
SOURCE OUTPUT CURRENT FEEDBACK SIGNAL TEST in par. 3.3.8.
Replace the control board (27) and/or current transducer (33).

3.4.12 - 56 - Short-circuit at the output lasts too long (max. allowable duration = 1 sec.).

It is normal to detect short-circuits at the output during welding, as long as they do not last
beyond a given interval. "Error 56" indicates that the short-circuit has exceeded this limit (1
second).
Check the wiring between connector J2 of control board (27) and power source output
terminals (E) and (F), and the power wiring between "cathode" terminal diode group (56) and
central adapter for torch (38), and between transformer (30), choke (29) and power source output
terminal (F).
If you find defective connections, fix and replace any damaged components.
Replace the control board (27).

3.4.13 - 60 - Current too high beyond the maximum allowable limits (250 A).

In some situations, such as for example when using large-diameter wires for welding very
thick work pieces, it may occur that the power source delivers a current greater than the rated.
"Error 60" indicates that the power source is blocked because the average welding current
value as exceeded 250 A for longer than 1 second (during the first 3 seconds of welding "error
60" detections is kept disabled for allow any welding start transient).
To restore normal operation, shut off and restart the power source, using it in less severe
conditions and which in any case meet the specification parameters (reduce wire speed and/or
output voltage and/or arc length).

3.4.14 - 73 - Display (G) indicates OPn = diode group (56) high temperature.

3.4.15 - 80 - Display (G) indicates OPn = wire coil cover open.

"OPn" on display (G) indicates that the temperature of the diode group (56) has risen beyond
the allowed limits, or the safety cover of the wire coil is open.
In the former instance we recommend not to shut off the power source, to keep the fan
running and thus allow rapid cooling. Normal operation is restored automatically as soon as the
temperature returns within the allowed limits.
If the alarm occurs repeatedly, we recommend that you:
− Make sure the fan (24) is operating correctly.
− Make sure that air flows smoothly, and there is no dust or other impediments to cooling in the
aeration tunnels.
− Make sure that the working conditions comply with the specified values, especially observing
the "duty cycle".
− Check the wiring between terminals 5 and 6 of J3 on control board (27), and J3 on snubber
board (58), between snubber board (58) and switch (4) on the wire coil guard, and between J4
on snubber board (58) and thermostat on diode group (56).
− Make sure the diode holding screws on the dissipater, in the diode group (56), are firmly
tightened.
− Check the conditions and make sure both the microswitch (4) and the wire coil cover are
correctly assembled. If incorrectly positioned, correct the position; replace if defective.
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24/03/2004