Nordson 3100V Series Customer Product Manual page 52

Description
A2-g
Startup Mode
Operating Mode
Standby Mode
During a sequential stafiup, when the clock timer or an operator turns the
system on, the
tank and hoses begin to heat first.
After the temperatures
of the
tank and hoses are all within 19.5 "C (35
'F) of
their setpoint
temperatures, the guns begin to
heat.
When the
tank, hoses, and guns
are within 3 'C
(5
"F)
of
their setpoint temperatures,
a
time delay begins.
The time delay, which you can adjust, provides additional time for the
material
in the tank
to melt.
At the end
of
the time delay, the green
READY light
turns on, indicating that the system is ready for operation.
You
can program the system so the pump starts automatically, either
when
the READY light turns on or when the tank reaches the
temperature you have specified. Or you can program the system so the
pump must be
started manually.
The capability to heat all zones simultaneously is also available
When you
trigger a gun, the pump draws
in
the melted adhesive and
sends
it
through a manifold,
a
filtet
and a hose to
the gun, which then
applies the adhesive to the product or package surface. Figure A2-2
shows the components of
a
typical hot melt system and the path that
melted adhesive follows when being pumped through the system.
ln
most systems, an air-operated automatic gun is used to apply the melted
adhesive. An
electrically driven gun or a handgun (shown in dotted lines
in Figure
A2-2)
may also
be used to apply adhesive.
When
you place the applicator
in
the standby mode, the controlsystem
disables
the pump and reduces the temperature of all heating zones to
the standby temperature setpoints you have selected. You can use the
standby mode to keep the adhesive warm when normal operation must
be interrupted for a while. The lower temperature reduces char formation
and conserves energy.
@899
Nordson Corporation
All
dghts reserved
4't-3000v
lssued 2/99
A2
E
N-03-[3V-4-AXXVI-2