AltaPail II Bulk Melters Product Manual.pdf - 第31页
Introduction 2-8 Part 1121836_03 E 11/2014 Nordson Corporation Modes AltaPail bulk me lters operate i n the following m odes: Normal Mode (Au to Scan) When the bulk melter is first switched on, i t is in normal m ode. In…
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Principle
drawing
Introduction
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Heating and Temperature Control
The bulk melter electronically controls the temperature of various
components of the bulk melter itself (e.g. heating punch) as well as
connected components of an entire application system.
Over temperature shutdown
The over temperature shutdown feature protects the bulk melter and the
material from overheating. For over temperature shutdown, the heater and
motor are switched off.
Under temperature Interlock
The under temperature interlock prevents the bulk melter motor from being
switched on as long as the material is too cold and thus too thick. This could
damage the pumps.
Standby
Standby serves to protect the hot melt material and to save energy during
breaks in production. The temperature set points are reduced by a standby
value.
Melting Process and Material Flow
The material is melted only directly below the melting plate. A pump feeds
the melted material to the hose connection.
Safety Valve
A safety valve (2) limits the material pressure generated by the pump (1).
The standard safety valve (2) is fixed at
100 bar 10000 kPa 1450 psi
When the pressure is exceeded, the safety valve opens, allowing the
material to circulate within the adapter plate.
Material Pressure
Pressure Control Valve
The mechanical pressure control valve can be manually adjusted up to
75 bar 7500 kPa 1100 psi
Also refer to page 4-8, Setting Material Pressure.
Introduction
2-8
Part 1121836_03
E 11/2014 Nordson Corporation
Modes
AltaPail bulk melters operate in the following modes:
Normal Mode (Auto Scan)
When the bulk melter is first switched on, it is in normal mode. In normal
mode the bulk melter checks the current temperature of the platen, the hoses
and the applicators to verify that they are within the set temperature ranges.
Standby
The temperatures of the platen, the hoses and the applicators are lowered
from their operating temperature (hereafter referred to as set point
temperature) by a set number of degrees.
Fault
The bulk melter alerts the user when a fault occurs, e.g. a sensor fault (RTD)
or a temperature that is not within the permitted range.
Installation
3-1
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Section 3
Installation
WARNING! Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
Installation Personnel's Experience
The instructions contained in this section are intended for personnel with
experience/authorization in the following fields:
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Application methods with hot melt adhesive or similar materials
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Industrial electrical wiring of power and control lines
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Industrial mechanical installation
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General knowledge of process control.
Transport
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Refer to page 12-5, Dimensions and Weights for weight. Use only
suitable transport devices (lift truck or forklift). Do not lift with a crane.
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If possible, use the pallet on which the bulk melter was delivered, and
fasten the bulk melter to the pallet.
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Protect from damage, moisture and dust with suitable packing material.
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Avoid jolts and vibrations.
Storage
Do not store the bulk melter outside! Protect from humidity, dust and
extreme temperature fluctuations (formation of condensation).