Idiomas disponibles
Idiomas disponibles
to deposits of dirt or metal dust.
In any case, in addition to cleaning the torch, check:
− the power wiring between VAC1 VAC" and +SEC
terminals of power board (56), and power source (3) and
(4) output terminals.
If you find defective connections, fix and replace any dam-
aged components.
If necessary, perform the tests for "open circuit operation",
par. 3.3.8 and "operation on resistive load", par. 3.3.9.
Replace the power (56) and/or panel (47).
3.4.12 -57- "Motor current high" on display (1). Exces-
sive wire feeder motor (11) current.
The panel board (47) is equipped with a supply current
limiting circuit for motor (11), to protect it over any over-
load and a circuit that detects when the limiter is continu-
ously tripped, indicating a permanent overload.
This overload is primarily due to mechanical causes, such
as dirt in the gears of the gearmotor, friction from a lack of
lubrication, impediments in feeding the wire coil, bottle-
necks in the torch sheath along the torch cable, etc.
EN
Therefore, clean the wire feed unit and check whether the
problem continues to occur if operating without the wire
feeding.
If so, you may hypothesize that the motor winding or me-
chanical reducer built into the motor have deteriorated and
thus replace the motor (11).
If necessary, perform the "wire feeder motor operation"
tests in par. 3.3.7.
3.4.13 -58- Firmware versions alignment or program-
ming error.
This alarm indicates that the programs in the INV board
on power board (56) and panel board (47) are in incompat-
ible versions between them.
This may occur, for example, after replacing one of the
two boards, power (56) or panel (47), without successive
welding system reprogramming or for a firmware updating
error or for a board failure.
Perform power source firmware updating with the last
available version (see par. 2.4).
3.4.14 -61- "L1 Low" on display (1). Mains voltage not
correct (phase lack).
In the case where the missing phase is one that also sup-
plies the services transformer, the power source block can
also be done with error indication 10 or 14, instead error
61.
The panel board (47) checks the mains voltage phases
presence through the "MAINS" signal generated by the
32
NOTE
power board (56).
The "MAINS" signal may be tested on :
− Pin7 of U1 and J7-B(-) terminal on power board (56).
Possible values:
− <+0,1 Vdc = mains suitable;
− +5 Vdc
= mains not suitable, error 99.
Perform the tests in par. 3.3.1 and, if necessary, replace
power (56) and/or panel (47) boards.
3.4.15 -73- "OVERTEMPERATURE 0" on the dis-
play (1). Temperature beyond the second-
ary diode group limits.
3.4.16 -74- "OVERTEMPERATURE 0" on the dis-
play (1). Temperature beyond the IGBT
group limits.
With these alarms we recommend that you not shut off the
power source, to keep the fans running and thus cool the
unit more rapidly.
Normal operation is restored automatically as soon as the
temperature returns within the allowed limits.
− Make sure that the fans (26) are working properly;
− check for proper air flow and make sure there is no dust
or obstacles to cooling in the aeration tunnel;
− make sure that the operating conditions meet the speci-
fication values, especially observe the "duty cycle";
− check wiring between J7, J8 on power board (56)
and NTC sensors positioned on the dissipators of the
secondary diode group and IGBT group (56);
− verify the correct assembly and operation of the NTC
sensors positioned on the dissipators of the secondary
diode group and of the IGBT power board unit (56);
their signals can be tested on terminals J7, and J8 on
power board (56), at ambient temperature their resist-
ance value must be 4.8 Kohm approximately.
3.4.17 -75- "Water Unit low pressure" on display (1).
Cooling circuit low pressure.
The pressure switch (9) measures the coolant pressure in
the cooling circuit.
See PRESSURE SWITCH (9) TEST, par. 3.3.13.
3.4.18 -76- "Water Unit not present" on display (1).
Cooling unit not connected.
The signal "cooling unit connected" is provided by the
jumper on terminals 1 - 2 of the path connector (9) on the
cooling unit.
See COOLING UNIT CONNECTED TEST, par. 3.3.13.
3.4.19 -80- "Door opened" on display (1). Wire feed
3302339/A
