
4-29
MA-5066-ENG
PS200 DRUM MELTER MANUAL
MELTER OPERATION
Current Vin voltage display
Whenever the Vin key is held pressed, the three digits on the right will show
the input voltage reading to one decimal point.
If the values for any point in the speed ramp table is being edited, and the Vin
key is held pressed for 3 seconds, the voltage value which is operating at this
time it will be copied to that value on the table.
By-pass valve regulation
The pumping system using a geared pump provides a constant flow of
adhesive, according to the pump’s rotational speed.
In this type of system, the pressure generated by the pump is the result of the
retentions found on the circuit (the length and diameter of the hose, elbows
in the connectors, the diameters of the nozzle outputs, etc.) and the adhesive
itself (its viscosity).
For safety reasons, this pressure must be discharged when the circuit exceeds
the operating value (normally with a closed circuit and the pump activated),
which makes the use of a discharge valve or a by-pass valve necessary.
This valve may be a manual adjustment valve, using a threaded screw, or upon
request, with pneumatic control, using a pressure regulator and a pressure
gauge. In the latter case, the adhesive circuit pressure has a 13:1 ratio to the
pressure displayed on the pressure gauge.
Pneumatic valve adjustment
To adjust the pressure with this valve model, follow these steps:
1. Unlock the pressure regulator control by pulling on it gently.
2. Turn it clockwise to increase the pressure. This will be seen reflected
on the pressure gauge located next to it.
Warning
: Do not exceed 6 bar of pressure. This corresponds to 80 bar on the
hydraulic circuit.
Platen movements
To move down the platen, provided that it is outside the drum for safety
reasons, you must simultaneously press the bimanual control on each side of
the emergency stop and main switch (black buttons).
With the platen in the upper position the amber button ‘Platen down’ is
blinking to show the posibility to move down the system. While pushing
bimanual control ‘Platen down’ button lights on (the system is moving down)
and ‘Platen up’ button blinks (possibility of movement). It is necessary to keep
the bimanual control pushed until the platen has reached the inlet edge of the
drum (detected by the corresponding sensor on the cam system). At the same
time a buzzer sounds warning the operator or third persons about the risk of
the movement.
As the platen moves downward, if the bimanual control is released at any
point, the plate will stop moving. In that case both amber buttons will blink
showing the possibility of moving up or down the system.
Содержание PS200
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Страница 75: ...ELECTRICAL DRAWINGS 7 1 MA 5066 ENG PS200 DRUM MELTER MANUAL 7 ELECTRICAL DRAWINGS ...
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Страница 78: ...FOCKE MELER GLUING SOLUTIONS S A 8 2 PNEUMATIC DIAGRAMS 1 2 3 4 5 6 9 8 7 11 12 10 13 14 ...
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Страница 84: ...FOCKE MELER GLUING SOLUTIONS 9 4 SPARE PARTS LIST B PLATEN ENSEMBLE 2 3 4 5 7 8 6 1 ...
Страница 86: ...FOCKE MELER GLUING SOLUTIONS 9 6 SPARE PARTS LIST C SIMPLE MANIFOLD ENSEMBLE 7 5 13 14 9 10 11 12 3 4 2 1 6 8 ...
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