Cloos GLW 322, Operating Instructions And Spare Parts

Page: 17 / 39

Cod.006.0001.1861
01/09/2014 v2.0
ENGLISH
GLW 322
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3.6 ALARMS MANAGEMENT
This LED illuminates if an incorrect operating condition occurs.
An alarm message appears on the following displays: D1-D2
Tab. 2 - Alarm messages
MESSAGE MEANING EVENT CHECKS
AL. HEA.
Overheating alarm
Indicates tripping of the welding power
source thermal protection.
Leave the unit running so that the
overheated components cool as rapidly
as possible.
When the unit has cooled, the welding
power source will reset automatically.
All functions disabled.
Exceptions:
-
Cooling fan.
- Cooler (if switched on).
- Make sure that the power required by the
welding process is lower than the maximum
rated power output.
- Check that the operating conditions are in
compliance with the welding power source data
plate specifications.
- Check for the presence of adequate air
circulation around the welding power source.
AL. Coo.
Cooler alarm
Indicates insufficient pressure in the
torch liquid cooling circuit.
All functions disabled.
Exceptions:
- Cooling fan.
The alarm message persists on the display until
the first operation is performed on the user
interface.
Signalling of the alarm depends on the following
settings:
-
Coo = on: the alarm is signalled if the cooling
unit is connected to the power source and if it
is running.
- Coo = oFF: the alarm is never signalled,
irrespective of the circumstances.
- Coo = Aut: the alarm is signalled if the
cooling unit is connected to the power source
and if it is running.
- Check that the connection to the cooler is
correct.
- Check that the "O/I" switch is set to "I" and that
it illuminates when the pump is running.
- Check that the cooler is filled with coolant.
- Check that the cooling circuit is liquid tight,
notably the torch hoses and the internal
connections of the cooler.