P. Energy L150A User And Maintenance Handbook page 22

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OPERATION HOW TO COMPLETE THE
OPERATION
OPENING/CLOS From home page select the
ING COVER manual mode and after the
CHECKING "opening cover" command.
VACUUM Close the lid as described on
CIRCUIT the previous point, go to the
CHECKING page: "VACUUM
COMMANDS" and activate
the vacuum pump
"VACUUM PUMP ON"
Control
alternately the upper and
lower air/vacuum valves.
HEATING With reference to manual
PLATE mode, select the "Heating
CHECKING command" menu and
activate one by one
the 4 heating zone by
editing a value on the field
"="
COOLING With reference to manual
SYSTEM mode, active the water
CHECKING pump (if present) and
activate one by one
the two valves that control
the two cooling area
PURGE With reference to manual
HYDRAULIC mode (general page) pusch
CIRCUIT the bottom cooling air.
MEMBRANE Open the cover and, watch
CHECKING the membrane state, first in
atmospheric pressure and
them in vacuum conditions.
CHECK THE Verify that each
SAFETY LIGHT interruption of a light beam
BARRIER during the cover closing
movement triggers a
interruption of movement
of cover.
P.Energy P.Energy P.Energy P.Energy
Monitoring and checking
At start command the lid open/close
The moving cover have to be regular
along the stroke
Verify the perfectly aligned during the
closing.
Check stopping point to the upper
limit switch. If the limit switch doesn't
work, take care do not open the cover
to the horizontal support but stop at
least 40cm before
Check stopping point to the lower
limit switch.
Check the upper chamber vacuum
value is close to zero.
Check the suction on lower chamber
The vacuum condition on upper/lower
chamber must be maintained at least
1 minute
The heating plate after editing a value
start heating to reach the setpoint
value.
Set on the cooling valve and verify if
cooling water flow inside the pipeline
and cool the plate with uniformity
Set on the cooling air bottom, the
hydraulic circuit is completely freed
The membrane must be integrates,
set correctly in atmospheric pressure.
In vacuum conditions (on upper
chamber) the membrane is well
placed over the entire surface
The movement of cover have to stop
and an alarm condition have to
appear with the machine in
emergency status.
USER AND MAINTENANCE HANDBOOK L150A
PROBLEMS
The cover doesn't open/close
The moving cover is not regular
and/or noisy
Lid and base are not perfectly
aligned.
The cover doesn't stop in
automatic mode to the upper
limit switch during the opening.
The cover doesn't stop in
automatic mode to the lower
limit switch during the closing.
There is no vacuum on the upper
chamber.
There is no suction on lower
chamber
The vacuum condition is not
retained
The heating plate doesn't work
The plate doesn't heat in
uniformly way
There are loss of water
The plate doesn't cool in
uniformly way
The hydraulic circuit doesen't
purge
The membrane has wrinkles,
folds, gathers or is not spread
out evenly.
In vacuum conditions doesn't
well placed over the entire
surface.
The cover don't stop moving
CAUSE/REMEDY
- fuse broken / check the fuse and replace if
necessary.
- Inverter broken or blocked / check the inverter
code on display inverter.
- motor failure / replace motor
- The motion parts are not in efficient working
status/ Check the cleaning of moving head, slide
and nut, if necessary to grease the ball bearing
screw
- The back side is a little bit open / increase FEW
milliseconds the cover closing time.
- The front is a little bit open / decrease some
millisecond the cover closing time.
- The closing proximity sensor is broken or in bad
position / check this sensor located close to ball
bearing screw
-The upper proximity of end stroke doesn't work/
check functionality
-The lower proximity of end stroke doesn't work
(broken or in wrong position)/ check this sensor
located close to ball bearing screw
-Verify the presence of compressed air.
(needed for the operation of vacuum valve
functionality)
-Verify the membrane integrity status
-Verify the valves integrity status
-Verify the presence of compressed air.
-Verify the cover closing position
-Verify the valves integrity status
O-ring is damaged or not perfect fit to the surface /
replace the o ring
- The membrane is damaged / replace it
- fuse broken / check the fuse and replace if
necessary.
-Automatic circuit breaker tripping/ check the
corresponding breaker
One or more heating resistances don't work /
replace heating resistances
-Seek the point loss and replace the broken item
.
- The electro valves don't open cooling circuit
- It's not active the cooling system / enable the
"COOLING SYSTEM" function by the "PARAMETERS"
page on the operator panel
- Verify the presence of compressed air. / -Verify
the valves integrity status
The membrane have to pull / 1-open one hook
2- pull the membrane with flat pliers
3-close the hook
-The membrane has concluded its production cycle
/ replacement membrane.
Check the integrity of safety light barrier
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