Component keys
Operation
4-2
Part 1120277_01
E 2012 Nordson Corporation
Melt Plate Operation and More about Heated
Components
The melter contains three groups of heated components. These are the
reservoir group (which contains the reservoir, the melt plate, and the
manifold), the hose group, and the gun group. Component groups are
represented on the control panel by the component keys shown to the left.
Heated components within each group are identified by their position
number. The position of the reservoir and manifold is fixed at 1. The position
of the melt plate is fixed at 2. Hose and gun position numbers are
automatically assigned based on the hose/gun receptacle they are
connected to. For example, the position number of a hose/gun pair that is
connected to the second receptacle would be hose position 2 and gun
position 2. The number of hose/gun receptacles available on each melter
depends on the configuration in which the melter was ordered.
NOTE: The melt plate temperature setpoint cannot be programmed. It is
either the same as the reservoir (when the reservoir is not full) or off (when
the reservoir is full). The following bullets supply additional important
information about the melt plate:
S The piston always applies downward force on the adhesive slug in
the hopper when the melt plate is on.
S Under normal operating conditions, when the system is warming up
the melt plate also heats until it reaches setpoint. On reaching the
setpoint the melt plate turns off until the system reaches setpoint.
S When the hopper-empty signal turns on, the melt plate stays on for
four (4) minutes, allowing the plate to maintain temperature while the
adhesive slug is changed. If the slug is not changed and the four
minute time limit is exceeded, the melt plate will turn off.
S The actual temperature of the melt plate can be displayed by pressing
the Reservoir key and then 2.
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