0000112315/011017/0 MDB-2/HV
EN - 8
On the left side of the control panel: main switch (not shown).
Fig. 5.1
E
D
FAILURE
ALARM
RUNNING
PROGRAM
ON/OFF
RESET
ALARM
A
B
C
Control panel
5.2
Use
To operate the system, proceed as follows.
• Make sure that the main switch is on.
• Turn the
PROGRAM ON/OFF
switch (ref. Fig. 5.1C) to the
right
4
to put the system in standby mode.
The system runs in accordance with the weekly timer settings
in the PLC
5
.
Unless service, maintenance or repairs jobs are being done, it
is recommended to leave the system in standby mode
6
.
aTTENTiON
Make sure that power supply and compressed air
supply are available at all times to enable automatic
filter cleaning.
5.2.1 System failure
A system failure is indicated by the red control light (ref. Fig.
5.1A) on the control panel, with an acoustic alarm at the same
time. In this case, the fan stops running immediately. The
cause of the problem is indicated on the PLC inside the control
panel.
To get to know the problem, proceed as follows.
aTTENTiON
To keep the message on the PLC, do
not
:
-
push the button
rEsEt AlArM
-
turn the
PROGRAM ON/OFF
button
-
turn off the main switch
• Open the control panel with the supplied key.
• Check the display of the PLC; it can show two different
messages:
-
“clogged filter”
-
“no air pressure”
• Push the button
rEsEt AlArM
(ref. Fig. 5.1E) to stop the
buzzer
7
.
4.
It concerns a spring-return switch so it returns to its default position.
5.
The cooling fan continues to run for an additional 5 minutes.
6.
During the off times, an offline filter cleaning cycle takes place.
7.
As long as the cause of the system failure has not been solved, the red control
light and the acoustic alarm will start again 30 seconds after reset.
Message “clogged filter”
The PLC shows this message when the filter pressure has
reached the preset value (default: 2000 Pa). This means that
you must replace the filter cartridges.
• Refer to section 6.4 for the filter replacement procedure.
Message “no air pressure”
8
The PLC shows this message when the compressed air
pressure is absent or insufficient.
• Repair the compressed air supply.
6
maiNTENaNCE
6.1
Periodic maintenance
The indicated maintenance intervals can vary depending on
the specific working and ambient conditions. Therefore, we
recommend to thoroughly inspect the complete unit once
every year beside the indicated periodic maintenance. For this
purpose contact your supplier.
Component
action
Frequency:
every X
months
X=3
X =12
Dustbin
Empty; refer to section 6.2*)
SparkTrap
Empty; refer to section 6.3
X
Compressed air
regulator
Drain
X
Housing
Make sure that there is no air
leakage
X
Compressed air
system
Make sure that the connection is
correct
X
Make sure that the pressure is
correct
X
Make sure that the valves and
membranes are not damaged
X
Filter cartridges
Make sure that the position is
correct; refer to section 6.4
X
Bolts
Make sure all bolts are correctly
tightened
X
Fan
Make sure that the flexible hose
at the inlet is not damaged
X
Make sure that the vibration
dampers are not damaged
X
Make sure that the fan is in
balance
X
*) During use, the level of contents in the dustbin must be checked
regularly. The emptying frequency depends on the intensity of use and
will be a matter of experience.
In the initial stage, do a check on the level of contents of the dustbin
two times per week
.
6.2
Emptying the dustbin
The dustbin must be emptied regularly.
Personal protective equipment (PPE)
Wear respiratory protection and protective
gloves when you empty the dustbin.
To empty the dustbin, proceed as follows.
• Loosen the quick connect clamp.
• Use the lifting pin to lower the dustbin.
• Pull out the dustbin.
8.
A problem with the compressed air supply does not activate the red control
light and/or the buzzer. You can notice a lack of compressed air by the fact that
the system stops after 5 minutes of running, while the welding continues.
