Alarms; Routine Maintenance - Helvi COMPACT 306C Manual De Uso

parameters. The wording LOD will appear on
the display.
The system automaticaly exits the function
Save and Recall five seconds after the last
operation without saving or recalling any ope-
rator point.

ALARMS

When an alarm occurs, the generator's di-
splay blinks "Err" -> "Type of error"
Types of errors that can be displayed:
Input voltage too low (Check the
oU
supply voltage)
Input voltage too high (Check the
uU
supply voltage)
Missing of one phase (Check the
PL
supply voltage and the right connection of the
generator)
Output current too high (Switch off
Io
and on the generator, if problem persists con-
tact the Technical Assistance)
Maximum
Po
exceeded (Switch off and on the generator, if
problem persists contact the Technical Assi-
stance)
Thermal
ot
tion. Let the generator to cool down without
switching it off
Auxiliary supply voltage not cor-
Ucc
rect (check on the generator data table the
right working range)
Auxiliary voltage too high (Check
udc
the supply voltage, if problem persists contact
the Technical Assistance)
Auxiliary voltage too low (Check
odc
the supply voltage, if problem persists contact
the Technical Assistance)
output power limit
protection interven-

ROUTINE MAINTENANCE

WARNING! PRIOR TO ANY INTERVEN-
TION MAKE SURE THE MACHINE IS
DISCONNECTED FROM THE POWER
SOURCE.
The efficiency of the welding equipment over
time is directly related to the frequency of
the maintenance operations. In the particular
case of welding machines, simply cleaning
their internal parts is sufficient; this must be
carried out more often if the workplace is par-
ticularly dusty.
Togliete la copertura.
• Remove the cover.
• Clear all traces of dust from the internal
parts of the generator using compressed air
with pressure below 3 kg/cm.
• Check all electric connections, making sure
that all screws and nuts are well tightened.
• Replace any deteriorated parts.
• Put the cover back on.
• After all these steps, the generator is ready
to work again, according to the instructions
contained in this manual.
EN-15