Nordson Coolwave 2610 User manual

Coolwaver2 610 UV Curing System
Customer Product Manual
Part 1105120-03
Issued 04/15
NORDSON CORPORATION •AMHERST, OHIO •USA
To order parts call 866-885-1212.
For technical support call 800-524-1322.
Check http://emanuals.nordson.com/uvsystems for the latest version.
This document is subject to change without notice.

Part 1105120-03 E2015 Nordson Corporation
Address all correspondence to:
Nordson UV Systems Inc.
555 Jackson Street
Amherst, OH 44001
United States
Tel:[phone]
Fax: [phone]
Email: [email protected]
Website: www.nordsonuv.com
Nordson Corporation welcomes requests for information, comments, and
inquiries about its products. General information about Nordson can be
found on the Internet using the following address:
http://www.nordson.com.
Trademarks
Coolwave, Nordson, and the Nordson logo are registered trademarks of
Nordson Corporation.
DeviceNet is a trademark of ODVA, Inc.
Notice
This is a Nordson Corporation publication which is protected by copyright.
Original copyright date 2013. No part of this document may be
photocopied, reproduced, or translated to another language without the
prior written consent of Nordson Corporation. The information contained
in this publication is subject to change without notice.

Change Record i
Part 1105120-03
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Change Record
Revision Date Change
02 09/14 Replaced light detector board part number 1077320 with 1605735 for
internal blower.
03 04/15 Updated part number 1083258 to 1607248 in Parts List.

Change Record
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Table of Contents iii
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Table of Contents
Safety 1-1..................................................
Introduction 1-1.............................................
Qualified Personnel 1-1......................................
Intended Use 1-2............................................
Regulations and Approvals 1-2................................
Personal Safety 1-3..........................................
Ultraviolet Radiation 1-3......................................
First Aid 1-5..............................................
Microwave Radiation 1-5.....................................
Radio Interference 1-5.......................................
Ozone 1-5..................................................
High Temperatures 1-6.......................................
High Voltage 1-6............................................
Mercury Bulbs (Lamps) 1-7...................................
UV-Curable Inks and Products 1-7.............................
Fire Safety 1-7..............................................
Action in the Event of a Malfunction 1-8........................
Safety Precautions While Servicing 1-8.........................
Control System Cleaning 1-8...............................
High Voltage Connections 1-8..............................
Disposal 1-8................................................
Moving and Storage 1-8......................................
Safety Symbols 1-9..........................................
Description 2-1.............................................
Introduction 2-1.............................................
What is UV Curing? 2-1......................................
The UV Curing System 2-1.................................
How Does it Work? 2-1....................................
System Components 2-2.....................................
Magnetron Operation and Life 2-4.............................
Reflectors 2-5...............................................
2.1 Inch Focus Reflector 2-5................................
3.1 Inch Focus Reflector 2-6................................
Flood Reflector 2-7........................................
Options 2-8.................................................

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Installation 3-1..............................................
Introduction 3-1.............................................
Inspection and Packaging 3-1.................................
System Controller Installation 3-1..............................
Mounting Guidelines 3-1...................................
Power Connections 3-3....................................
Power Load Balancing 3-4...............................
System Connection Diagrams 3-4........................
Network Connections 3-7..................................
Remote Inputs and Outputs 3-7.............................
Machine Stop Interlock 3-9...............................
Remote Power Level Control 3-10.........................
Idle Mode 3-10..........................................
Remote Standby and Lamp On 3-10.......................
Quick Cycle Using Idle Mode 3-11.........................
DeviceNet Installation 3-11..................................
Chassis Isolation 3-11....................................
BUS Power 3-11.........................................
Hardware Specifications 3-12.............................
Software Specifications 3-12..............................
Lamphead Installation 3-12....................................
Mounting Guidelines 3-12...................................
Optional Mounting Kit for Lampheads 3-15....................
Light Shielding 3-15........................................
Cooling Air Installation 3-15.................................
Internal Blower Lampheads 3-15..........................
External Blower Lampheads 3-16..........................
Exhaust Requirements 3-16.................................
AirShield Ventilation System 3-17............................
Monitoring Lamphead Air Pressure 3-18......................
Top Pressure Port 3-18...................................
Bottom Pressure Port 3-18................................
Switching Pressure Ports 3-18.............................
Lamphead Cable Connections 3-21..........................
RF Detector Installation 3-22...................................
System Controller Configuration 3-23...........................
Operation 4-1...............................................
Introduction 4-1.............................................
Display and Controls 4-1.....................................
Additional Functions 4-3...................................
Temperature 4-3........................................
Light Detector 4-3......................................
Starter Bulb Test 4-3....................................
Panel Lock 4-3.........................................
Operating Messages 4-4.....................................
Fault Messages 4-4..........................................
Resetting Faults 4-5.......................................
System Timing Sequences 4-6................................
Timing Sequence with Idle = Y 4-6..........................
Timing Sequence with Idle = N 4-8..........................
Correcting a Fault Condition 4-9
............................
Startup 4-9.................................................
Locally Operated Units 4-9..................................
Remotely Operated Units 4-12...............................
Shutdown 4-13...............................................

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Troubleshooting 5-1.........................................
System Software Versions 5-1................................
General Troubleshooting 5-1..................................
Fault Message Troubleshooting 5-2............................
Bulb Troubleshooting 5-6.....................................
Curing Process Troubleshooting 5-7...........................
General Lamphead Troubleshooting 5-7........................
Diode Block Testing 5-8.......................................
Maintenance and Repair 6-1.................................
Introduction 6-1.............................................
Torque Specifications for System Fasteners 6-1.................
System Controller Maintenance and Repair 6-1..................
Maintenance Schedule 6-1.................................
System Controller Repair Procedures 6-2....................
Preparation 6-2.........................................
Fuses 6-2.............................................
Cleaning System Controller Cooling Fans 6-3..............
Lamphead Maintenance and Repair 6-4........................
Internal Blower Lamphead Filter Replacement 6-5.............
Lamphead Repair Procedures 6-5...........................
Preparation 6-5.........................................
Bulb Replacement 6-5...................................
Reflector Replacement 6-7...............................
Internal Blower Replacement 6-10............................
Internal Blower Lamphead Complete Cover Removal 6-11......
Internal Blower Lamphead Cover Replacement 6-12............
External Blower Lamphead Cover Removal 6-13...............
Lamphead Internal Component Replacement 6-13.............
Preparation 6-13.........................................
Magnetron Replacement 6-14.............................
Filament Transformer Replacement 6-15...................
Light Detector Board Replacement 6-18....................
Temperature Sensor Replacement 6-18....................
Starter Bulb Replacement 6-18............................
Re-Assembly 6-19.........................................
Parts 7-1...................................................
Introduction 7-1.............................................
CW2 610 System Controllers 7-1..............................
System Controller Repair Parts 7-2..........................
CW-2 Internal Blower Lampheads 7-4..........................
Torque Specifications for Lamphead Fasteners 7-5............
Parts Illustration −Internal Blower Lamphead Parts 7-6........
CW-2 External Blower Lampheads 7-7.........................
Torque Specifications for Lamphead Fasteners 7-8............
Parts Illustration −External Blower Lamphead Parts 7-9.......
Bulbs 7-10...................................................
Reflector Conversion Kits 7-10.................................
RF Detector 7-10.............................................
System Cables 7-11
..........................................
Accessories 7-12.............................................
Optional Lamphead Mounting Kit 7-13...........................
Mounting Kit Installation 7-13................................

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Specifications 8-1...........................................
System Controller 8-1........................................
Specifications 8-1.........................................
Current Draw 8-2.........................................
Light Output Settings 8-3.....................................
Master/Remote Power Setting Examples 8-3.................
Lamphead 8-4..............................................
Bulb 8-4....................................................
System Schematic 8-4.......................................
UV Glossary 9-1............................................
DeviceNet Specifications 10-1................................
Introduction 10-1.............................................
Definitions 10-1............................................
Reference Documents 10-1.................................
Governing Body 10-1.......................................
System Operation 10-2........................................
MAC ID / Baud Rate Configuration 10-2.......................
LED Operation 10-3........................................
DeviceNet Interface 10-4......................................
Overview 10-4.............................................
Configuration 10-4.........................................
Initialization 10-4...........................................
Group 2 Only Slave Operation 10-4..........................
Certification 10-4...........................................
Identity Object (01HEX −1 Instance) 10-5.......................
Class Attributes (Instance 0) 10-5............................
Instance Attributes (Instance 1) 10-5..........................
Common Services 10-5.....................................
Message Router Object (02HEX −1 Instance) 10-5...............
DeviceNet Object (03HEX −1 Instance) 10-6....................
Class Attributes (Instance 0) 10-6............................
Instance Attributes (Instance 1) 10-6..........................
Common Services 10-6.....................................
Assembly Object (04HEX – 2 Instances) 10-7....................
Class Attributes (Instance 0) 10-7............................
Instance Attributes (Instances 100 and 112) 10-7...............
Common Services 10-10.....................................
Connection Object (05HEX −2 Instances) 10-11..................
Class Attributes (Instance 0) 10-11............................
Instance Attributes (Instances 1 −2) 10-11.....................
Common Services 10-12.....................................
S−Device Supervisor Object (30HEX −1 Instance) 10-12...........
Class Attributes (Instance 0) 10-12............................
Instance Attributes (Instance 1) 10-12
..........................
Common Services 10-13.....................................
Exception Detail Alarm / Warning 10-14........................
Lamp Object (64HEX −16 Instances) 10-15......................
Class Attributes (Instance 0) 10-15............................
Instance Attributes (Instances 1−15) 10-16.....................
Common Services 10-16.....................................
Index i...................................................

Safety 1-1
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Section 1
Safety
Introduction
Read and follow these safety instructions. Task- and equipment-specific
warnings, cautions, and instructions are included in equipment
documentation where appropriate.
Make sure all equipment documentation, including these instructions, is
accessible to all persons operating or servicing equipment.
All equipment is designed and manufactured to International Safety
Standards to ensure that the health and safety of the operator is protected
at all times.
Figure 1-1 Microwave UV Warning
Qualified Personnel
Equipment owners are responsible for making sure that Nordson equipment
is installed, operated, and serviced by qualified personnel. Qualified
personnel are those employees or contractors who are trained to safely
perform their assigned tasks. They are familiar with all relevant safety rules
and regulations and are physically capable of performing their assigned
tasks.

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Intended Use
Nordson ultraviolet (UV) equipment is intended specifically for integration
into other machines and should NOT be operated as a standalone system
or without appropriate safety guarding, shielding, and interlocks. It is the
responsibility of the integrator and end user to ensure that the final
assembly fulfills all necessary legislation and is completely safe before
operation.
This equipment is designed for the accelerated curing of UV inks,
adhesives, and coatings. Do not use this equipment to cure alternative
materials unless approved by the material supplier.
The equipment is not flame or explosion proof and is not designed for use in
hazardous areas.
Use of Nordson equipment in ways other than those described in the
documentation supplied with the equipment may result in injury to persons
or damage to property.
Some examples of unintended use of equipment include
Susing incompatible materials
Smaking unauthorized modifications
Sremoving or bypassing safety guards, shielding or interlocks
Susing incompatible or damaged parts
Susing unapproved auxiliary equipment
Soperating equipment in excess of maximum ratings
Susing equipment in hazardous areas
Regulations and Approvals
Make sure all equipment is rated and approved for the environment in which
it is used. Any approvals obtained for Nordson equipment will be voided if
instructions for installation, operation, and service are not followed.

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Personal Safety
To prevent injury follow these instructions.
SDo not operate or service equipment unless you are qualified.
SDo not operate equipment unless safety guards, light shields, doors,
and/or covers are intact and automatic interlocks are operating properly.
Do not bypass or disarm any safety devices.
SKeep clear of moving equipment. Before adjusting or servicing any
moving equipment, shut off the system controller and wait until the
equipment comes to a complete stop. Lock out power and secure the
equipment to prevent unexpected movement.
SObtain and read Material Safety Data Sheets (MSDS) for all materials
used. Follow the manufacturer’s instructions for safe handling and use
of materials. Always use recommended personal protection devices.
SMake sure the UV area is adequately ventilated.
SThe UV equipment runs at extremely high temperatures. Do not touch
the UV lamphead face during operation or immediately after shutting off
the equipment.
STo prevent injury, be aware of less-obvious dangers in the workplace
that often cannot be completely eliminated, such as hot surfaces, sharp
edges, energized electrical circuits, and moving parts that cannot be
enclosed or otherwise guarded for practical reasons.
SAlways wear safety glasses that offer UV protection.
SNever expose any part of the body to direct or indirect UV light.
Ultraviolet Radiation
WARNING: Ultraviolet light is a form of electromagnetic radiation and can
be harmful if exposure exceeds recommended levels. Protect eyes and skin
from direct exposure to UV light. All equipment or areas where UV light is
used must be adequately guarded, shielded, and interlocked to prevent
accidental exposure.
Ultraviolet light is not capable of penetrating into the body and interacting
with internal tissues and organs.
The National Institute for Occupational Safety and Health (NIOSH)
document Criteria for Recommended Standard... Occupational Exposure to
Ultraviolet Radiation (PB214 268) establishes guidelines for safe use.
See Figure 1-2. Ultraviolet light is divided into wavelength bands A, B, C,
and V along with vacuum UV. Although values for wavelength bands will
vary depending on the source, the following ranges may be used as a
guide.
SUV-V (450−400 nanometers) – visible UV.
SUV-A (400−315 nanometers) −represents the largest portion of UV
energy and is most responsible for human skin aging and increased
pigmentation. UV−A is at the lower limit of sensitivity to the human eye.
SUV-B (315−280 nanometers) −most responsible for reddening and
burning of the skin and damage to the eyes.
SUV-C (280−100 nanometers)

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Exposure to UV radiation can result in
Sreddening of skin
Sheadaches
Ssore eyes
X RAYS ULTRA
VIOLET INFRA RED MICROWAVES RADIO WAVES
VISIBLE
VACUUM UV
FAR
UV
NEAR
UV
UVC UVA
U
V
B
100 200 300 500 600 700 800 900400 1000 nanometers
U
V
V
Figure 1-2 Ultraviolet Light Wavelength Bands
It is very important that all precautions are taken to prevent all UV light,
whether direct or indirect, from escaping the curing area. Exposure to UV
light can be harmful to both eyes and skin. Use the following table to
determine the permissible exposure time to UV light on unprotected eyes or
skin.
Permissible Ultra Violet Exposures as Recommended by the
American Conference of Government and Industrial Hygienists
Duration of Exposure (Per Day) Effective Irradiance (E Micro
Watts/cm sq)
8 hours 0.1
4 hours 0.2
2 hours 0.4
1 hour 0.8
30 minutes 1.7
15 minutes 3.3
10 minutes 5.0
5 minutes 10
1 minute 50
30 seconds 100
10 seconds 300
1 second 3000

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First Aid
Seek immediate medical attention for skin burns and direct UV exposure to
the eyes.
Microwave Radiation
WARNING: The lamp system utilizes high powered RF microwave energy
generated by a magnetron to provide power to the UV lamp. This
technology is identical to that of residential microwave ovens and like these
ovens can be dangerous if misused. The lamp system is safe provided that
the RF screen and gasketing are intact. Any damage such as rips or holes
in the screen may cause leakage of dangerous amounts of microwave
radiation. The power to the lamp is interlocked to the RF detector and will
shut down if microwave leakage exceeds safe levels. Any excessive
leakage will cause the system to shutdown.
Currently there are two organizations that set recommended guidelines for
exposure to occupational microwave radiation exposure, OSHA (U.S.
Department of labor, Occupational Safety and Health Administration −
Directive 29cfr 1910.97) and ANSI (American National Standards Institute −
Directive C95.1−1982). The ANSI directive, which is more stringent and
most commonly referred to, states that individuals should not be exposed to
microwave radiation levels above 8 mW/cm2at 2.45 GHz on a continuous
basis, or an average of 8 mW/cm2over a six minute period.
RF levels near the CoolWave 2 system installation should be checked
periodically. To measure RF levels, a hand-held survey meter is available
from ETS-Lindgren company. Their HI-1501 Survey Meter is calibrated for
2450 Mhz microwave sources and can measure RF levels from 0−2, 0−10,
and 0−100 mW/cm2More information can be obtained on the internet from
http://www.ets−lindgren.com/.
Radio Interference
UV lamps are classified as non-consumer industrial, scientific, and medical
(ISM) equipment, as defined in Federal Communications Commission
(FCC) Rules and Regulations Volume 47, Part 18. As required by these
rules, Nordson Corporation verifies that their systems are capable of
compliance with applicable technical standards governing radiated
emissions when the equipment is properly maintained and is installed in an
appropriate light shield. This system complies with EN55011 (CISPR-1,
Group 2, Class A).
NOTE: Nordson UV lamps operate at a fundamental frequency of 2.45
GHz. They may cause interference with wireless local area networks
(WLANs) that also operate at this frequency.
Ozone
Ozone (O3) is a colorless gas that is generated by the reaction of
short-wave UV light (around 200−220 nanometers) with air, and it occurs
whenever high-energy electrical discharge is present.

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Ozone readily reverts to breathable oxygen when mixed with atmospheric
air. Ozone should be removed from the UV source via a sealed duct and
discharged to atmosphere according to local regulations. The discharge
location should be away from pedestrian walkways and window openings
and should be well above the average human breathing height for the area.
Regular ozone checks should be carried out every three months using an
ozone meter. Recommended levels of ozone in the atmosphere of a factory
should not exceed 0.1 parts per million (PPM). This level is easily obtainable
if factory recommended exhaust rates are followed.
Ozone has a very distinct, strong odor even at low levels. Immediate ozone
checks should be made if an operator can smell ozone. Most people can
smell ozone at about one third the maximum allowable 0.1 PPM level.
Ozone exposure will cause headaches and fatigue. It will also irritate the
mouth and throat. Overexposure can lead to respiratory infections.
If ozone is detected,
1. Shut down the UV system.
2. Check exhaust ducting for leaks.
3. Check the operator working area with an ozone meter.
If a person is overcome by ozone,
SSeek immediate medical assistance.
SMove the individual to a warm uncontaminated atmosphere and loosen
tight clothing at the neck and waist.
SKeep the individual at rest.
SIf the person has difficulty breathing, oxygen may be administered
provided that suitable apparatus and a trained operator are available.
SIf breathing is weak or has ceased, artificial respiration should be
started.
High Temperatures
UV curing systems generally run at extremely high temperatures. A sudden
shock from touching a high temperature surface might cause an operator to
jump or take his attention away from other potential hazards.
When shutting down UV equipment for maintenance, allow the equipment to
cool before beginning work, or wear protective gloves and clothing to
prevent burns.
High Voltage
The UV curing equipment operates at high voltages up to 5000 Vdc. If any
electrical faults develop, the operator should:
1. Switch the equipment off immediately.
2. Make no attempt to service the equipment.
3. Call a qualified electrician trained to service this type of equipment.

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Mercury Bulbs (Lamps)
The bulbs used in UV lamp systems contain mercury. Mercury is a toxic
substance and must not be ingested or come into direct contact with the
skin. Under normal UV operating conditions, mercury presents no hazard as
it is completely contained in the sealed quartz tube of the bulb; however, it is
strongly recommended that protective gloves and eye protection be worn
when handling UV bulbs, and that a mercury spill kit be readily available.
Mercury spill kits are commercially available from a number of sources.
These precautions should be followed when disposing of UV bulbs:
SPlace the bulb in a rigid protective carton.
SDispose of used bulbs through a local mercury recycling center.
SWash your hands if a bulb breaks: mercury could come into contact with
your skin.
SDo not store or handle bulbs near food or beverages.
Nordson Corporation will dispose of UV bulbs free of charge provided the
customer covers all shipping costs associated with returning the bulbs. For
bulb disposal, please clearly mark on the all bulb containers and shipping
packages: BULBS FOR DISPOSAL ONLY.
Bulbs should be shipped to:
Primarc UV Technologies
Bulb Disposal Department
2 Dan Forth Drive
Easton, Pennsylvania 18045
UV-Curable Inks and Products
Some materials used in UV curable inks, adhesives, and varnishes are
toxic. Before handling them, read the Material Safety Data Sheets provided
by the manufacturer, use the recommended personal safety equipment, and
follow the recommended procedures for safe use and disposal.
Fire Safety
Under proper operating conditions, the surface temperature of the bulb is
anywhere between 700−900 _C (1300−1700 _F), and the vapor gas inside
the bulb is several thousand degrees Fahrenheit. Any form of flammable
material (such as paper, lint, powder, or dirt) trapped under the lamp, within
the lamp housing or in the lamp’s vicinity, will result in an increased risk of
fire.
To avoid a fire or explosion, follow these instructions.
SKnow where emergency stop buttons, shut-off valves, and fire
extinguishers are located.
SClean, maintain, test, and repair equipment according to the instructions
in this manual.
Should a fire occur, the operator must de-energize the UV equipment
immediately.

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Action in the Event of a Malfunction
If a system or any equipment in a system malfunctions, shut off the system
immediately and perform the following steps:
SDisconnect and lock out electrical power.
SIdentify the reason for the malfunction and correct it before restarting the
equipment.
Safety Precautions While Servicing
A qualified competent electrician must carry out all electrical maintenance
and servicing of this equipment.
WARNING: This equipment operates at high voltages up to 5000 volts dc
and is therefore potentially dangerous. The electrician servicing this
equipment must take all precautions.
WARNING: Isolate the equipment at the main, disconnect or lockout before
removing any of the cover panels.
Control System Cleaning
Keep all contactors and relays clean and free from dirt and dust. Check
them regularly.
WARNING: This equipment is not rated for explosive environments. Do not
install in extremely dusty or powder-charged work rooms. Contact your
Nordson representative if in doubt.
High Voltage Connections
Check the high-voltage connections within the equipment carefully to make
sure that these do not become dirty or coated with powder or other possible
conducting material. Clean them regularly, at least whenever the lamp is
changed, possibly more often where a particularly heavily polluted
atmosphere occurs.
Always make sure the unicable connectors are secure and tight before
applying power.
Disposal
Dispose of equipment and materials used in operation and servicing
according to local codes.
Moving and Storage
Moving or storing of the Nordson UV curing system must comply with all
applicable local and state regulations. The lamphead and system controller
should be shipped or stored in the original container or an equivalent and
kept dry and clean at all times.

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All electrical power and other services must be disconnected and the
lamphead must be cool before moving or storing this equipment. Remove
the bulb from the lamphead before moving the lamphead. Store or ship the
bulb in the original shipping tube.
Due to the system controller’s weight, it is recommended a mechanical
device be used for handling and they should be kept as low to the floor as
possible. Controllers should be properly fastened to an appropriate fixture
such as a pallet for handling and storing.
Shipping of Nordson UV curing systems and their component parts must be
done in accordance with all applicable shipping regulations including
requirements for shipping of magnetic materials and mercury lamps.
Safety Symbols
The following safety symbols are used in this manual. The symbols are
used along with warnings to help you operate and maintain your equipment
safely. Pay attention to all warnings and follow directions to avoid personal
injury.
WARNING: Mechanical or combined mechanical/electrical hazards.
WARNING: Electrical hazard.
WARNING: UV, microwave, and RF radiation hazards.
WARNING: Hot surface hazard.
CAUTION: Equipment hazard.

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Description 2-1
Part 1105120-03
E2015 Nordson Corporation
Section 2
Description
Introduction
This manual covers the Nordson CoolWave 2 610 Ultraviolet Microwave
Curing System. It provides safety, installation, operation, and
troubleshooting and repair information for the system and its components.
What is UV Curing?
Ultraviolet curing is achieved by a chemical reaction in special inks and
coatings when intense UV energy is focused on them. Curing efficiency
depends on UV power, coating weight, operation speed, type of substrates,
material chemistry, and other factors.
The UV Curing System
The system is designed to cure UV inks, adhesives, and coatings for
numerous industrial applications. The system consists of an individual 10-in.
lamphead, a corresponding variable output system controller, a RF detector,
and appropriate cables. Additional lampheads can be lined up end-to-end to
form longer curing widths.
How Does it Work?
Inside the lamphead, a microwave generator (magnetron) operating at 2400
to 2500 MHz excites a 10-inch medium pressure UV bulb. Microwave
energy from a magnetron is directed by a wave guide to the UV bulb. A
screen located at the opening of the cavity allows the UV light emitted by
the bulb to pass through while containing the microwave radiation.
The wavelength of the emitted UV light is between 220 and
470 nanometers. Power output is 600 watts per inch.
Light shielding is required to protect the operator and meet safety criteria. If
shielding cannot fully contain the UV light, then the operator should be
provided with protective equipment (refer to Safety in this manual).

Description
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Part 1105120-03 E2015 Nordson Corporation
In addition to ultraviolet light, the UV bulbs radiate heat. A constant flow of
cooling air through the lamphead is required to remove the excess heat and
make sure that the bulbs, reflectors, and housings remain at an acceptable
operating temperature. Two versions of the lamphead are available: with an
internal blower, or with a duct connection to a customer-supplied external
blower.
The system controller supplies and controls the high voltage to the
lamphead and provides a control circuit to interlock the lamphead with the
curing machine. The unit is fitted with additional interlocks and safety
features that prevent the operation of the system in an unsafe condition.
The front panel of the controller displays operating and fault messages.
System Components
Table 2-1 and Figure 2-1 describe and illustrate the major components of a
typical CoolWave ultraviolet microwave curing system. Your system may
appear different depending on your application requirements.
Table 2-1 System Components
Item Component Description
1 Lamphead The lamphead consists of a bulb housing, UV bulb, starter bulb,
reflectors, wave guide, magnetron and filament transformer assembly,
and a circuit board incorporating a light detector, temperature sensor,
and pressure sensor. The patented wave guide couples the
magnetron output to the bulb. Lampheads are available in internal and
external blower versions.
2Ultraviolet Bulbs
NOTE: The system warranty is void if genuine Nordson UV bulbs are
not used. Contact a Nordson UV representative for ordering
information.
The system uses medium-pressure bulbs. The bulbs consist of
high-purity quartz and have various fills to produce light at different
wavelengths. Bulbs and controls are carefully matched to give
optimum UV output and wavelength requirements.
Use genuine Nordson replacement bulbs with this system.
Alternative bulbs may damage the controls or overheat the
reflector system.
3 Reflectors Refer to Reflectors on page 2-5 for more information. Reflectors can
be ordered to suit the application. Focus reflectors are elliptical in
shape to guide the UV light into a tight band across the surface of the
material being cured. Flood reflectors produce a wider band of light.
The reflectors are manufactured from glass with a proprietary coating
to give maximum UV reflectivity while minimizing infrared radiation.
4Starter Bulb Acts as the ignitor for the ultraviolet bulb. The starter bulb lights at the
same time the magnetron is energized. After the UV bulb reaches full
power the starter bulb turns off automatically.
5 Light
Detector/Pressure
/Temperature
Board
Monitors UV light and shuts the system down if the bulb fails to emit
enough light. Includes a pressure transducer that monitors the
lamphead cooling air pressure and shuts off system power if the
cooling system fails to prevent a catastrophic lamphead failure.
Monitors temperature inside the lamphead and shuts down the system
if the internal temperature goes over the limit.