41 Eagle Road
Danbury, CT 06813-1961 USA
(203) 796-0400
http://www.bransonultrasonics.com
Manual Change Information
At Branson, we strive to maintain our position as the leader in ultrasonics plastics joining,
metal welding, cleaning and related technologies by continually improving our circuits and
components in our equipment. These improvements are incorporated as soon as they are
developed and thoroughly tested.
Information concerning any improvements will be added to the appropriate technical
documentation at its next revision and printing. Therefore, when requesting service
assistance for specific units, note the Revision information found on the cover of this
document, and refer to the printing date which appears at the bottom of this page.
Mylar is a registered trademark of DuPont Teijin Films.
Loctite is a registered trademark of Loctite Corporation.
WD-40 is a registered trademark of WD-40 Company.
Windows 7, Windows Vista, and Windows XP are registered trademarks of Microsoft Corporation
Other trademarks and service marks mentioned herein are held by their respective
owners.
ii100-412-183 REV. 13
Foreword
Congratulations on your choice of a Branson Ultrasonics Corporation system!
The Branson DCX S Power Supply system is process equipment for the joining of plastic
parts using ultrasonic energy. It is the newest generation of product using this
sophisticated technology for a variety of customer applications. This Operating Manual is
part of the documentation set for this system, and should be kept with the equipment.
Thank you for choosing Branson!
Introduction
This manual is arranged into several structured chapters which will help you find the
information you may need to know to safely handle, install, set up, program, operate,
and/or maintain this product. Please refer to the Table Of Contents and/or the Index of
this manual to find the information you may be looking for. In the event you require
additional assistance or information, please contact our Product Support department (see
1.3 How to Contact Branson for information on how to contact them) or y our local Branson
This chapter contains an explanation of the different Safety Notice symbols and icons
found both in this manual and on the product itself and provides additional safety
information for ultrasonic welding. This chapter also describes how to contact Branson for
assistance.
1.1.1Symbols Found in this Manual
These symbols used throughout this manual warrant special attention:
DANGERIndicates an immediate danger
If these risks are not avoided, death or severe injury will be the
result.
WARNINGIndicates a possible danger
If these risks are not avoided, death or severe injury might result.
CAUTIONIndicates a possible danger
If these risks are not avoided, slight or minor injury might result.
NOTICEIndicates a possible damaging situation
If this situation is not avoided, the system or something in its vicinity
might be damaged.
Application types and other important or useful information are
emphasized.
2100-412-183 REV. 13
1.1.2Symbols Found on the Product
The DCX S Power Supply has several safety -related labels on it to indicate the presence of
hazardous voltages inside the unit.
Figure 1.1Safety-related Labels Found on the DCX S Power Supply (Horizontal)
100-412-183 REV. 133
Figure 1.2Safety-related Labels found on the DCX S Power Supply (Vertical)
4100-412-183 REV. 13
1.2General Precautions
Take the following precautions before servicing the power supply:
• Be sure the power switch is in the off position before making any electrical connections
• To prevent the possibility of an electrical shock, always plug the power supply into a grounded
power source
• To prevent the possibility of an electrical shock, ground the power supply by securing an 8 gage
grounded conductor to the ground screw located next to the air outlet
• Power supplies produce high voltage. Before working on the power supply assembly, do the
following:
Turn off the power supply;
Unplug main power; and
Allow at least 2 minutes for capacitors to discharge
• High voltage is present in the power supply. Do not operate with the cover removed
• High line voltages exist in the ultrasonic power supply assembly. Common points are tied to
circuit reference, not chassis ground. Therefore, use only non-grounded, battery-powered
multimeters when testing the power supply assembly. Using other types of test equipment can
present a shock hazard
• Keep hands from under the horn. Down force (pressure) and ultrasonic vibrations can cause
injury
• Do not cycle the welding system if either the RF cable or converter is disconnected
• When using larger horns, avoid situations where fingers could be pinched between the horn and
the fixture
• Ensure power supply installation is performed by qualified personnel and in accordance with local
standards and regulations
CAUTIONLoud Noise Hazard
Sound level and frequency of the noise emitted during the ultrasonic
assembly process may depend upon a. type of application, b. size,
shape and composition of the material being assembled, c. shape
and material of the holding fixture, d. welder setup parameters and
e. tool design.
Some parts vibrate at an audible frequency during the process. Some
or all of these factors may result in an uncomfortable noise being
emitted during the process.
In such cases operators may need to be provided with personal
protective equipment. See 29 CFR (Code of Federal Regulations)
1910.95 Occupational Noise Exposure.
100-412-183 REV. 135
1.2.1Intended Use of the System
The DCX S Power Supply and components are designed to be used as part of an ultrasonic
welding system. These are designed for a wide variety of welding or processing
applications.
1.2.2Emissions
When being processed, certain plastic materials can emit toxic fumes, gases or other
emissions that can be hazardous to the operator’s health. Where such materials are
processed, proper ventilation of the workstation is required. Check your materials
suppliers for recommended protection when processing their materials.
CAUTIONCorrosive Material Hazard
Processing of many materials, such as PVC, can be hazardous to an
operator’s health and could cause corrosion/damage to the
equipment. Use proper ventilation and take protective measures.
1.2.3Setting up the Workplace
Measures for setting up a workplace for safe operation of the ultrasonic welder are
outlined in Chapter 5: Installation and Setup
1.2.4Regulatory Compliance
This product meets electrical safety requirements and EMC (Electromagnetic Compliance)
requirements for North America and the European Union.
6100-412-183 REV. 13
1.3How to Contact Branson
Branson is here to help you. We appreciate your business and are interested in helping
you successfully use our products. To contact Branson for help, use the following
telephone numbers, or contact the office nearest you.
1.3.1Authorized Service Center (North America)
Table 1.1Authorized Service Center (North America)
NameAddressTel/Fax Number
Branson Ultrasonics Corp.
Global Headquarters
United States
41 Eagle Road, Commerce
Park,
Danbury CT 06813-1961
1.3.2Authorized Service Centers (South America)
Table 1.2Authorized Service Centers (South America)
NameAddressTel/Fax Number
Intersonic
Argentina
Branson do Brasil
Brasil
Av. Cramer 2361 1C
Buenos Aires 1428
Rua Goiatuba, 81
06465-300 – Barueri / SP
Tel: 1-203-796-0400
Fax: 1-203-796-0593
info@bransonultrasonics.com
Tel: 011-54-11-4781-2327
Fax: 011-54-11-4782-2412
Tel: 55-11-4208-1652
100-412-183 REV. 137
1.3.3Authorized Service Centers (Asia)
Table 1.3Authorized Service Centers (Asia)
NameAddressTel/Fax Number
Branson Ultrasonics
(Shanghai) Co. Ltd. –
China Headquarters
China
Branson Ultrasonics Co.
Ltd. Beijing Office
Branson Ultrasonics Co.
Ltd. Tianjin Office
Branson Ultrasonics Co.
Ltd. Dongguan Office
Branson Ultrasonics Co.
Ltd. Suzhou Office
Branson Ultrasonics Asia
Pacific Co. Ltd.
Hong Kong Office
528 Rong Le Dong Road,
Song Jiang
Song Jiang Industry Zone
CN-Shanghai, 201613 PRC
Room 216, Flat B, 12 Hong
Da North Road,
Chuangxin Technological
Mansion Beijing Department
Area.
Beijing 100176 PRC
Flat A, 5/F Pioneer Building
213 Wai Yip Street, Kwung
Tong
Kowloon, Hong Kong
Tel: 86-21-3781-0588
Fax: 86-21-5774-5100
c.service@emerson.com
Tel: 86-10-6787-7806
Fax: 86-10-6787-3378
Tel: 86-22-2732-5233
Fax: 86-22-2732-3581
Tel: 86-769-8541-0736
Fax: 86-769-8541-0735
Tel: 86-512-6295-3652
Fax: 86-512-6295-3651
Tel: 852-2790-3393
Fax: 852-2341-2716
info@emerson.com
Branson Ultrasonics
Div. of Emerson Electric
Co. P. Ltd. “Ajanta
House”
India
Branson Ultrasonics
Japan Headquarters
Division of Emerson
Japan Ltd.
Branson Korea Co., Ltd.
Korea
8100-412-183 REV. 13
8/35, Marol Co-Op Industrial
Estate
M.V. Road, Andheri (East)
Mumbai 400 059, India
4-3-14 Okada, Atsugi-Shi
Kanagawa 243-0021
Japan
#803, 8F Dongil Techno
Town
823, Kwan Yang-2dong,
Dong An-gu
An Yang-si, Kyung Ki-do,
431-062 Korea
Tel: 91-22-2850-5570
Fax: 91-22-2850-8681
Tel: 81-46-228-2881
Fax: 81-46-288-8892
Tel: 82-1577-0631
Fax: 82-31-422-9572
Table 1.3Authorized Service Centers (Asia)
NameAddressTel/Fax Number
No. 20, Jalan Rajawali 3,
Branson Ultrasonics
Div. of Emerson Elec (M)
The DCX S Power Supply generates ultrasonic energy through an ultrasonic converter for
welding plastics. Several models are available, depending on the desired frequency (for
example, 20 kHz), the desired power range (for example, 2.5 kW), and the intended
mounting arrangement (horizontal or vertical). The power supply also contains a
microprocessor-based controller module that provides for control and monitoring of
welding operations.
The power supply provides the following features:
• End of Weld Store: Allows the power supply to track and store the frequency of the last weld
• Timed Seek: Tracks and starts the stack on the correct frequency. It does this by running the
horn at a low-level amplitude (10 %) to find and lock on to the stack operating frequency. Seeks
are timed from the moment sonics was last activated
• Line Regulation: Maintains converter amplitude by regulating for variances in the line voltages
• Load Regulation: Maintains converter amplitude over the full range of rated power
• System Protection: Protects the power supply by providing six levels of protection
Voltage
Current
Phase
Temperature
Power
Frequency
• Web Page Interface: Provides access, via Ethernet connection, to power supply information,
diagnostics, and configuration web pages
• Frequency Offset: Provides for applying an external frequency offset to the operating frequency
• Amplitude Control: Provides complete control of amplitude throughout the weld cycle:
programmable starting ramp, and digital setting of weld amplitude.
2.1.2Power Supply Manual Set
The following documentation is available in electronic format for the DCX S Power Supply:
• DCX S Power Supply Instruction Manual (100-412-183)
• DCX S Power Supply Quick Start Guide (100-412-185)
• DCX S Power Supply Web Page Interface Instruction Manual (100-412-187)
16100-412-183 REV. 13
2.2Compatibility with other Branson Products
Table 2.2Power Supply Compatibility with Branson Converters
DCX S ModelConverter
CR-20
CR-20S
20 kHz / 1250 W
20 kHz / 2500 W
20 kHz / 4000 W
30 kHz / 750 W
30 kHz / 1500 W
40 kHz / 400 W
40 kHz / 800 W
NOTICE
CR-20C
CH-20S
CH-20C
CS-20S
CS-20C
CR-30S
CR-30C
CH-30S
CH-30C
CS-30S
CS-30C
CR-40S
CR-40C
4TP
4TR
Special adaptor cables are available to connect to MS-style
converters (CR20 and 4TR). See Table 8.8 DCX S Power Supply
System Cables.
100-412-183 REV. 1317
2.3Features
2.3.1The Welding System
The welding system consists of a DCX S Power Supply and a converter-booster-horn stack.
The system can perform ultrasonic welding, inserting, staking, spot welding, swaging,
degating, and continuous ultrasonic operations. It is designed for automated,
semi-automated and/or manual production operations.
2.3.2The Power Supply
The DCX S Power Supply consists of an ultrasonic power supply assembly with a system
controller and user interfaces. The ultrasonic power supply assembly converts
conventional 50/60 Hz line current to 20 kHz, 30 kHz or 40 kHz electrical energy. The
system controller controls the welding system.
Listed below are the control features of the DCX S Power Supply ultrasonic welding system.
• Autotuning: Branson power supply tuning ensures that the system is running at peak efficiency
• Digital Amplitude Setting: This feature allows you to set the exact amplitude necessary for
your application, allowing increased range and setting repeatability over analog systems
• Frequency Offset: This process feature allows a user to set a frequency value, for certain
specific applications, where the force imparted on the fixture or anvil causes a frequency shift in
the stack’s operation. You should only use this feature when advised to do so by Branson
• Horn Signature: Using the DCX S Power Supply Web Page Interface, you may scan your
ultrasonic stack to view its operating frequency on your computer, using digital readouts and bar
graphs to give you the best picture of the stack’s operation
• LCD (Liquid Crystal Display): Provides a clear visual interface to monitor and configure the
system
• Membrane Keys: For high reliability and immunity from factory dust and oils
• Login ID Numbers: Allows for keeping track of user access to the DCX S Power Supply Web
Page Interface
• Ramp Starting: The starting of the DCX S Power Supply and horn is done at a rate that helps
reduce electrical and mechanical stress on the system. The horn start rate may be adjusted for
some tough-to-start applications
• Seek: Ensures operation at resonance; minimizes tuning errors; and operates the stack at low
amplitude (approximately 10%), then provides a means of sensing and storing the resonant
operating frequency value
• Start-up Diagnostics: At start-up, the controls test the major internal components
• Timed Seek: When enabled, will do a Seek once every minute to update horn resonant
frequency to memory. This is especially useful when the welding process affects the actual
temperature of the horn, causing a resonant frequency shift
• True Wattmeter: The controls on the power supply include a true wattmeter for accurate
measurement of power and energy
• Web Page Interface: Provides access, via Ethernet connection, to power supply information,
diagnostics, and configuration web pages
18100-412-183 REV. 13
2.3.3The Actuator
The DCX S Power Supply does not provide actuator control functions, and does not interface
with actuator signals.
2.3.4Converter/Booster/Horn Assembly
The Converter
The ultrasonic electrical energy from the power supply is applied to the converter
(sometimes called the transducer). This transforms the high frequency electrical
oscillations into mechanical vibrations at the same frequency as the electrical oscillations.
The heart of the converter is piezoelectric ceramic elements. When subjected to an
alternating voltage, these elements alternately expand and contract, resulting in better
than 90% conversion of electrical to mechanical energy.
The Booster
Success in ultrasonic assembly depends on the right amplitude of movement at the horn
face. Amplitude is a function of horn shape, which is largely determined by the size and
form of the parts to be assembled. The booster can be used as a mechanical transformer
to increase or decrease the amplitude of vibrations applied to the parts through the horn.
The booster is a resonant half-wave section of aluminum or titanium. It is mounted
between the converter and the horn, as part of the ultrasonic stack. It also provides a
clamping point for rigid stack mounting.
Boosters are designed to resonate at the same frequency as the converter with which they
are used. Boosters are usually mounted at a nodal (minimum vibration) point of axial
motion. This minimizes the loss of energy and prevents vibration from being transmitted
to the stack supporting structure.
The Horn
The horn is selected or designed for a specific application. Each horn is tuned typically as
a half-wave section that applies the necessary force and vibr ation uniformly to the parts to
be assembled. It transfers ultrasonic vibrations from the converter to the workpiece. The
horn is mounted to the booster as part of the ultrasonic stack.
Depending on their profile, horns are referred to as stepped, conical, exponential, bar, or
catenoidal. The shape of the horn determines the amplitude at the face of the horn.
Depending on the application, horns can be made from titanium alloys, aluminum, or
steel. Titanium alloys are the best materials for horn fabrication due to their high level of
strength and low loss. Aluminum horns are usually chrome- or nickel-plated or hardcoated to reduce wear. Steel horns are for low amplitude requiring hardness, such as
ultrasonic insertion applications.
100-412-183 REV. 1319
2.4Controls and Indicators
2.4.1DCX S Power Supply Front Panel
Figure 2.3DCX S Power Supply Front Panel Controls and Indicators
Table 2.3DCX S Power Supply Front Panel Controls and Indicators
ItemNameFunction
1LCD
2
3
4
5
6
7
Up/Down
Arrow Keys
Alarm Reset
Key
Configuration
Key
Ultrasonic T est
Key
Power-On
indicator
Ethernet
Service Port
For detailed information refer to Figure 2.4 LCD Description
and Figure 2.4 LCD Description.
Use to adjust the amplitude of ultrasonic vibrations (10% to
100%). Also used to select registers and edit register
values.
Use the Reset key to reset alarms. When changing system
registers, use the Reset key to set a register back to its
default value.
Use the Configuration key to change system registers. For
information on using the Configuration key to set system
registers see 7.4 Configuring the Power Supply Registers.
Use the Test key to turn on Sonics.
Lights when the power supply is connected to main power
and the power switch is on.
Use the Ethernet Service port to connect to the DCX S Power
Supply Web Page Interface.
For detailed information on using the web page interface
refer to the DCX S Power Supply Web Page Interface
Instruction Manual (100-412-187).
20100-412-183 REV. 13
Figure 2.4LCD Description
Table 2.4LCD Description
ItemNameFunction
1Numeric Display
2
Sonics Active
Indicator
Displays the power supply amplitude setting, a register
number, or a register value.
Indicates ultrasonics is running.
Shows the true percentage of ultrasonic power during a
weld cycle. The bar graph can be configured to show the
Power/
3
Frequency
Bar Graph
peak power or the frequency at the end of each weld or test
cycle. For instructions on how to modify this setting see 7.4
Configuring the Power Supply Registers.
For a detailed bar graph description, and bar graph reading
examples, see 7.5.2 Frequency Bar-Graph Interpretation.
4Percentage IconIndicates the value shown is the amplitude setting.
5Alarm IconA flashing Icon which indicates an alarm condition.
Indicates that the value shown on the numeric display is a
6
Number Sign
Icon
register number. Use up and down keys to select a register.
For more information see 7.4 Configuring the Power Supply
Registers.
Indicates that the value shown on the numeric display is a
7Circle Icon
register value. Use up and down keys to modify the register
value. For more information see 7.4 Configuring the Power
Supply Registers.
100-412-183 REV. 1321
2.4.2DCX S Power Supply Connections
Figure 2.5DCX S Power Supply Back Panel (Horizontal)
4
5
Figure 2.6DCX S Power Supply Bottom Panel (Vertical)
1
1
2
3
3
2
5
Table 2.5Connections to the DCX S Power Supply
ItemNameFunction
1
2
3
Circuit Breaker /
Power Switch
Line Input
Connector
User I/O
Connector
Turns the AC main power on or off.
Detachable connector block for connecting the input power.
For wiring details refer to Chapter 5: Installation and
Setup.
Provides the necessary input/output signals to interface
with user automation or control interfaces. For detailed
information on interfacing with the DCX S Power Supply
refer to Chapter 5: Installation and Setup.
4
4RF Connector
5Ground ScrewGround screw to serve as a redundant safety measure.
22100-412-183 REV. 13
SHV connector for RF cable, which provides ultrasonic
energy to the converter.
2.5Welding Systems
2.5.1Principle of Operation
Thermoplastic parts are welded ultrasonically by applying high frequency vibrations to the
parts being assembled. The vibrations, through surface and intermolecular friction,
produce a sharp rise in temperature at the welding interface.
When the temperature is high enough to melt the plastic, there is a flow of material
between the parts. When the vibrations stop, the material solidifies under pressure and a
weld results.
2.5.2Weld System Applications
DCX S Power Supply weld systems can be used for the following applications:
• Ultrasonic welding
• Cutting and sealing thermoplastic fabric and film
• Staking, spot welding, swaging, and degating thermoplastic parts
• Other ultrasonic processing applications
DCX S Power Supply weld systems typically consist of a power supply operated with a
fixed converter-booster-horn stack.
100-412-183 REV. 1323
2.6Glossary of Terms
The following terminology may be encountered when using or operating a DCX S Power
Supply ultrasonic welding system:
Actuator: The unit which houses the converter/booster/horn stack assembly in a rigid
mounting, allowing the stack to move up and down, either mechanically or pneumatically,
applying force to the part at a user-adjustable force and velocity.
Alarm: Visual indication of error.
Amplitude Control: The ability to set amplitude digitally or by an external control.
Amplitude: The peak-to-peak movement at the horn face. Always expressed as a
percentage of the maximum.
Booster: A one-half-wavelength-long resonant metal section mounted between the
converter and horn, sometimes having a change in cross-sectional area between the input
and output surfaces. The booster mechanically alters the amplitude of vibrations received
from the converter, and imparts the new amplitude to the horn.
Clamping Force: The pounds or kilograms exerted by the horn onto the workpiece.
Converter: The device that converts electrical energy into mechanical vibrations at a high
frequency (an ultrasonic rate).
Counters: A record of the number of cycles, general alarms, power-on hours, etc,
recorded in the power supply.
Degating: Removing a molded part from its runner system.
Energy Director: A triangular-shaped projection of plastic material which concentrates
the ultrasonic energy at the joint interface of a plastic part.
External Amplitude Control: Enables you to access real-time amplitude control directly
via the user I/O connector.
External Frequency Control: Enables you to access real-time frequency offset control
directly via the user I/O connector.
Fixture: A device for holding a part in position for assembly.
Flash: Material displaced from the joint area.
Forming: Reshaping a section of thermoplastic.
Fretting Corrosion: A black surface condition, that results from friction between metal
parts, that appears on the converter-booster-horn stack mating surfaces.
Frequency: The operating frequency of the ultrasonic stack. The frequency stored is
measured at the end of the ultrasonic portion of the cycle (when ultrasonics are
terminated).
Frequency Offset: An offset factor applied to the ultrasonic frequency stored in the
power supply.
Gain: The ratio of output to input amplitude of a horn or booster.
Horn: A bar or metal section, usually one half-wavelength-long which transfers vibratory
energy to the workpiece.
Horn Amplitude: The peak-to-peak displacement of a horn at its work face.
Horn Scan: A scan to enhance selection of operating frequency and control parameters.
Insertion: The process of embedding a metal component in plastic.
Interface: 1. The contact surface of two mating parts. 2. The connection between two
pieces of equipment.
24100-412-183 REV. 13
Joint: The weld surfaces.
Parameter: A unique factor or element which affects the welding operation in a particular
mode.
Parameter Range: Valid range of parameters accepted for a particular setup.
Power Supply: The electronic instrument in an ultrasonic assembly system which
changes conventional 50/60 Hz electrical power into high frequency electrical power at
20 kHz, 30 kHz or 40 kHz.
Seek: The activation of ultrasonics at a low-level (10%) amplitude, for the purpose of
finding the resonant frequency of the stack.
Staking: The process of melting and reforming a plastic stud to mechanically lock a
dissimilar material in place.
Swaging: The process of capturing another component of an assembly by melting and
reforming a ridge of plastic.
Thermoplastic: A polymer which undergoes a reversible change of state when subjected
to heat.
Thermoset: A polymer which undergoes an irreversible change when subjected to heat.
Ultrasonic Power: Presence of ultrasonic power at the horn face.
Ultrasonic Welding: The use of ultrasonic vibrations to generate heat and subsequently
melt the mating surfaces of two thermoplastic parts. When ultrasonic vibrations stop, the
molten material resolidifies, and a weld occurs.
User ID: A unique number used to keep track of user access to the web page interface.
Weld System: A combination of components required to perform an ultrasonic operation.
Usually consists of a power supply, converter, booster , and horn, with either an actuator or
a handheld device, or in a fixed, mounted location.
The power supply may be heavy. Handling, unpacking, and
installation may require the assistance of a colleague or the use of
lifting platforms or hoists.
3.1.1Environmental Specifications
The DCX S Power Supply is an electronic unit that converts line voltage to ultrasonic
energy and responds to user input for regulating the weld process. Its internal
components are sensitive to static discharge, and many of its components can be harmed
if the unit is dropped, shipped under improper conditions, or otherwise mishandled.
The following environmental guidelines should be respected in the shipping of the power
supply.
-25º C / -13º F to +55º C / +131º F (+70º C /
+158º F for 24 hours)
45 g shock / 0.5 g and (3 to 100 Hz) vibration per
ASTM 3332-88 and 3580-90
28100-412-183 REV. 13
3.2Receiving
The DCX S Power Supply is a sensitive electronic device. Many of its components can be
harmed if the unit is dropped or otherwise mishandled.
Scope of Delivery
Branson equipment is carefully checked and packed before dispatch. It is recommended,
however, that you follow the procedure below upon receiving your DCX S Power Supply.
Inspect the Power Supply when it is delivered, take the
following steps:
Table 3.2Inspect the Power Supply
StepAction:
1Verify that all parts are complete according to the packing slip.
2Check the packing and the unit for damage (visual inspection).
3Report any damage claims to your carrier immediately.
4
NOTICE
Determine if any component has become loose during shipping and, if
necessary, tighten screws.
If the goods delivered have been damaged during shipping, please
contact the forwarding agent immediately. Retain packing material
(for possible inspection or for sending back the unit).
100-412-183 REV. 1329
3.3Unpacking the Power Supply
NOTICE
If there are any visible signs of damage to the shipping containers or
the product, or you later discover hidden damage, NOTIFY YOUR
CARRIER IMMEDIATELY. Save the packing material.
The power supply is fully assembled. It is shipped in a sturdy cardboard box. Some
additional items are shipped in the box with the power supply. Note orientation of
packaging material in case return/repack is necessary. When unpacking the power supply,
follow the steps in Table 3.3 Unpacking the Power Supply.
Table 3.3Unpacking the Power Supply
StepAction
1Unpack the power supply as soon as it arrives. Save the packing material
2
3Inspect the controls, indicators, and surface for signs of damage.
4
Verify you have all of the equipment ordered. Some components are
packed inside other boxes.
Remove the cover of the power supply to check if an y components became
loose during shipping.
30100-412-183 REV. 13
3.4Take Inventory of Small Parts
Table 3.4Small Parts included (=x): Power Supply Assemblies
Part or Kit20 kHz30 kHz40 kHz
Mylar®* plastic film Washer KitXX
Silicone GreaseX
Spanners (2)XXX
* Mylar is a registered trademark of DuPont Teijin Films.
3.4.1Cables
The RF cable connects the power supply to the converter. For automated systems you will
also need a user I/O cable to monitor and control the power supply. Check your invoice for
cable types and cable lengths.
Table 3.5DCX S Power Supply System Cables
P/NDescription
100-240-383Cable, RF 8 ft (2.5 m)
100-240-384Cable, RF 15 ft (4.5 m)
100-240-385Cable, RF 25 ft (7.5 m)
100-240-387Cable, RF right angle 8 ft (2.5 m)
100-240-388Cable, RF right angle 15 ft (4.5 m)
100-240-389Cable, RF right angle 25 ft (7.5 m)
100-240-391
100-240-392Cable, User I/O 25 ft (7.5 m)
200-240-396Cable Ethernet Cat 5e 7 ft (2.1 m)
100-240-397
Cable, RF adaptor for CR20 converter 3 ft
(0.9 m)
Cable, RF adaptor for 4TR converter 3 ft
(0.9 m)
100-412-183 REV. 1331
3.5Returning Equipment
If you are returning equipment to Branson Ultrasonic Corporation, please call your
Customer Service Representative to receive approval to return the goods. Refer to 1.3
All specifications are subject to change without notice.
4.1.1Environmental Specifications
The DCX S Power Supply has the following environmental specifications:
Table 4.1Environmental Specifications
Environmental ConditionAcceptable Range
Ambient Operating Temperature+41° F to +104° F (+5° C to +40° C)
Storage / Shipping Temperature-13° F to +131° F (-25° C to +55° C)
HumidityMaximum 95%, non-condensing
IP Rating2X
4.1.2Electrical Specifications
The following tables list input voltage and current requirements for the DCX S Power
Supply.
Table 4.2Electrical Input Operating Voltages
Power Supply RatingInput Operating Voltage
All Models
* 200 V Min. for 4 kW units.
Table 4.3Input Current and Circuit Breaker Specifications
ModelPowerCurrent Rating
1250 W 7 A Max. @ 200 V / 15 A Breaker
20 kHz
2500 W14 A Max. @ 200 V / 25 A Breaker
4000 W25 A Max. @ 200 V / 25 A Breaker
200 V to 230 V Nominal (180 V Min.* to 253 V Max.), 50 Hz
or 60 Hz, Single Phase.
750 W 5 A Max. @ 200 V / 10 A Breaker
30 kHz
1500 W10 A Max. @ 200 V / 15 A Breaker
34100-412-183 REV. 13
Table 4.3Input Current and Circuit Breaker Specifications
ModelPowerCurrent Rating
400 W 3 A Max. @ 200 V / 10 A Breaker
40 kHz
800 W 5 A Max. @ 200 V / 10 A Breaker
Table 4.4Continuous Duty Max. Power
ModelPowerContinuous Duty Max. Power
1250 W 800 W
20 kHz
30 kHz
40 kHz
NOTICE
NOTICE
2500 W1600 W
4000 W2000 W
750 W 300 W
1500 W 800 W
400 W 300 W
800 W 400 W
High duty cycles require additional cooling for the converter. For
information on converter cooling refer to 5.6 Converter Cooling.
System average power must be limited to the specified continuous
maximum. Higher peak power, up to the maximum acceptable power
limit, with an on time of up to 10 seconds may be obtained if
appropriate off time ensures that, on average, the Continuous Duty
Maximum Power is not exceeded.
100-412-183 REV. 1335
4.2Physical Description
This section describes the physical dimensions of the DCX S Power Supply
NOTICE
Dimensions are nominal.
Table 4.5Dimension and Weight of DCX S Power Supply
SizeWidthHeightDepthWeight
Small (Benchtop)
Small (Vertical)
Medium
(Benchtop)
Medium (Vertical)
Large (Benchtop)
Large (Vertical)
For detailed dimensional information refer to Chapter 5: Installation and Setup.
14”
356 mm
5.2”
132 mm
14”
356 mm
5.2”
132 mm
14”
356 mm
5.2”
132 mm
5.5”
132 mm
14”
356 mm
5.5”
132 mm
14”
356 mm
5.5”
132 mm
14”
356 mm
7.4”
187 mm
8.6”
219 mm
10.6”
270 mm
16 lb
7.2 kg
18 lb
8.2 kg
22 lb
10 kg
36100-412-183 REV. 13
4.3Declaration of Conformity
Figure 4.1Declaration of Conformity
100-412-183 REV. 1337
4.4Standard Modules and Components
The following sections describe the DCX S Power Supply internal circuits.
4.4.1System Block Diagram
The block diagram for the DCX S Power Supply is shown below.
Figure 4.2System Block Diagram
4.4.2Circuit Descriptions
The DCX S Power Supply contains the following sub-assemblies:
• DCP-I Control Board
• LCD Board
• Ultrasonics Power Supply Assembly
• Line Filter
• 24 VDC Power Supply
38100-412-183 REV. 13
DCP-I Control Board
The DCP-I Control Board controls the following functions of the power supply:
• Responding to start and stop signals
• Responding to alarm and reset signals
• Responding to user input
• Controlling and monitoring ultrasonics
• Providing information for the Front Panel LCD
• Generating alarms
• Controlling communications
• Storing operating frequency of last weld (frequency memory) and using the stored frequency as
a starting point for the next weld
• Checking and updating frequency memory on start-up
• Providing starting ramp times (Start)
• Provide a standard interface for automation (26-pin HD D-Sub Connector)
LCD Board
The LCD Board controls the Front Panel LCD interface and communicates user input to the
DCP-I Control Board.
Ultrasonic Power Supply Assembly
The ultrasonic power supply assembly generates ultrasonic energy at the resonant
frequency of your converter-booster-horn (stack). The ultrasonic power supply assembly
contains three main circuits.
• 320 VDC Power Supply: converts AC line voltage to +320 VDC for the output power devices.
• Output Circuit: Matches the impedance of the output power device to the converter-boosterhorn stack; and provides feedback to the control circuit.
• Interface Circuits: perform the following functions:
Provide drive signal to output power device
Determine true percentage of ultrasonic power used over a range of amplitudes
Allow control of the resonant frequency
Control starting amplitude
Provide overload protection for the ultrasonic power assembly
Line Filter
The line filter performs the function of providing RFI filtering for the line voltage input to
the power supply. The filtering also blocks ultrasonic signals from entering the AC main
line.
24 VDC Power Supply
The 24 VDC power supply provides +24 VDC for the DCP-I control board, LCD board, user
I/O signals, and DC fan.
This chapter is intended to help the installer with the basic installation and setup of your
new DCX S Power Supply.
CAUTIONHeavy Object
The power supply, and related components are heavy. Handling,
unpacking, and installation may require the assistance of a colleague
or the use of lifting platforms or hoists.
International safety-related labels are found on the power supply. Those that are of
importance during installation of the system are identified in Figure 1.1 Safety-related
Labels Found on the DCX S Power Supply (Horizontal) and Figure 1.2 Safety-related
Labels found on the DCX S Power Supply (Vertical).
42100-412-183 REV. 13
5.2Installation Requirements
This section covers the location requirements, mounting options, power supply
dimensions, environmental requirements, and electrical requirements, to help you plan
and execute your installation successfully.
5.2.1Location
The DCX S Power Supply comes in two different models Horizontal (benchtop) and V ertical
(which may be back mounted or side mounted).
The power supply should be accessible for parameter changes and settings, and it can be
placed in a horizontal or vertical orientation (depending on your selected model). The
power supply should be located in an area away from radiators or heating vents and
positioned so it does not draw in dust, dirt or material via its cooling fan.
A cable clamp can be used to secure wires in place.
NOTICE
Cable clamp is not included with the unit.
Refer to the illustrations on the pages that follow for dimensional dra wings of both models.
All dimensions are approximate and may vary slightly:
Figure 5.1 DCX S Power Supply Benchtop Dimensional Drawing
Figure 5.2 DCX S Power Supply Vertical Mount Dimensional Drawing (400 W, 750 W and
800 W)
Figure 5.3 DCX S Power Supply Vertical Mount Dimensional Drawing (1.25 kW and 1.5
kW)
Figure 5.4 DCX S Power Supply Vertical Mount Dimensional Drawing (2.5 kW and 4 kW)
100-412-183 REV. 1343
Figure 5.1DCX S Power Supply Benchtop Dimensional Drawing
44100-412-183 REV. 13
Figure 5.2DCX S Power Supply Vertical Mount Dimensional Drawing (400 W, 750 W and 800 W)
5.22
in
(132.6 mm)
4.5 in
(114 mm)
3.5 in
(89 mm)
7.75 in
(196.8 mm)
3.0 in (76 mm) recommended
fan clearance
17.38 in
(441.5 mm)
5.53 in
(140 mm)
15.75 in
(400 mm)
s 20:4.0
Back-mounted
14.00 in
(355.6 mm)
s 20:4.0
7.38 in
(187.4 mm)
5.0 in (127 mm) recommended
clearance for cables
1.31 in
(33.3 mm)
3.0 in (76 mm) recommended
fan clearance
5.0 in (127 mm) recommended
clearance for cables
Side-mounted
NOTICE
Use the keyhole mounting bracket to mount the unit in the needed
position. Use M6 (6mm) screws to mount the unit.
100-412-183 REV. 1345
Figure 5.3DCX S Power Supply Vertical Mount Dimensional Drawing (1.25 kW and 1.5 kW)
5.22
in
(132.6 mm)
4.5 in
(114 mm)
3.5 in
(89 mm)
9.0 in
(229 mm)
3.0 in (76 mm) recommended
fan clearance
17.38 in
(441.5 mm)
5.53 in
(140 mm)
15.75 in
(400 mm)
s 20:4.0
Back-mounted
14.00 in
(355.6 mm)
s 20:4.0
8.63 in
(219.2 mm)
5.0 in (127 mm) recommended
clearance for cables
2.62 in
(66.5 mm)
3.0 in (76 mm) recommended
fan clearance
5.0 in (127 mm) recommended
clearance for cables
Side-mounted
NOTICE
Use the keyhole mounting bracket to mount the unit in the needed
position. Use M6 (6mm) screws to mount the unit.
46100-412-183 REV. 13
Figure 5.4DCX S Power Supply Vertical Mount Dimensional Drawing (2.5 kW and 4 kW)
5.22
in
(132.6 mm)
4.5 in
(114 mm)
3.5 in
(89 mm)
11.0 in
(279 mm)
3.0 in (76 mm)
recommended
fan clearance
17.38 in
(441.5 mm)
5.53 in
(140 mm)
15.75 in
(400 mm)
s 20:4.0
Back-mounted
14.00 in
(355.6 mm)
s 20:4.0
10.63 in
(270 mm)
5.0 in (127 mm)
recommended
clearance for cables
3.62 in
(91.9 mm)
3.0 in (76 mm)
recommended
fan clearance
5.0 in (127 mm)
recommended
clearance for cables
Side-mounted
NOTICE
Use the keyhole mounting bracket to mount the unit in the needed
position. Use M6 (6mm) screws to mount the unit.
100-412-183 REV. 1347
5.2.2Environmental Requirements
Verify the DCX S Power Supply is operated in an environment that meets the temperature
and humidity requirements indicated in Table 5.1 Environmental Requirements.
Table 5.1Environmental Requirements
Environmental ConditionAcceptable Range
Ambient Operating Temperature+41° F to +104° F (+5° C to +40° C)
HumidityMaximum 95%, non-condensing
IP Rating2X
5.2.3Electrical Input Power Ratings
Connect the power supply to a single-phase, grounded, 3-wire, 50 Hz or 60 Hz 200 V to
230 V power source. Table 5.2 Input Current and Circuit Breaker Specifications lists the
current and breaker ratings for the various models.
Table 5.2Input Current and Circuit Breaker Specifications
ModelPowerCurrent Rating
1250 W 7 A Max. @ 200 V / 15 A Breaker
20 kHz
30 kHz
40 kHz
2500 W14 A Max. @ 200 V / 25 A Breaker
4000 W25 A Max. @ 200 V / 25 A Breaker
750 W 5 A Max. @ 200 V / 10 A Breaker
1500 W10 A Max. @ 200 V / 15 A Breaker
400 W 3 A Max. @ 200 V / 10 A Breaker
800 W 5 A Max. @ 200 V / 10 A Breaker
5.2.4Pneumatic Requirements
Your welding system may require a cooling air stream for the converters. In continuous
operations, or applications with longer duty cycles, it may be necessary to cool the horn as
well as the converter.
Typically 80 cubic feet (2.26 m3) per hour of clean, dry, compressed air are required to
cool most welding operations.
To verify the 80 cubic feet (2.26 m3) per hour cooling air stream required for your welding
system, refer to 5.6 Converter Cooling.
48100-412-183 REV. 13
5.3Installation Steps
WARNINGHigh Voltage Hazard
To prevent the possibility of an electrical shock:
• Ensure the power source is disconnected before beginning work on line
connections
• Ensure the power switch on the back of the unit is in the OFF position
before making any electrical connections
• Always plug the power supply into a grounded power source
• To prevent the possibility of an electrical shock, ground the power supply
by securing an 8 gage grounded conductor to the ground screw located
next to the air outlet
• Ensure power supply installation is performed by qualified personnel and
in accordance with local standards and regulations
Basic installation notes:
• To avoid problems associated with EMI, you should route high power lines (AC and Ultr asonic RF)
away from low power lines (controls signals)
• You should consider future troubleshooting and repair when installing all wiring. All wiring should
be either color coded or tagged with industrial wire tags
• The minimum cable bend radius is 5 times the cable outer diameter for RF cables
• The minimum cable bend radius is 10 times the cable outer diameter for user I/O & Ethernet
cables
• Ground wires should not be shared with other equipment
• All inductive coils must be suppressed with appropriate devices, such as diodes or RC networks
100-412-183 REV. 1349
5.3.1Mount the Power Supply
The cable lengths are limited based on the operating frequency of the welding system.
Performance and results can suffer if the RF cable is crushed, pinched, damaged or
modified. Contact your Branson Representative if you have special cable requirements.
Do not place the power supply on the floor or in other locations that will allow dust, dirt or
contaminants to be drawn into the power supply.
NOTICE
Special fan filter kits are available for use in dusty environments. See
Table 8.12 Other Items used with the DCX S Power Supply.
NOTICE
Do not block exhaust and intake air circulation, which is needed to
maintain a safe operating temperature.
5.3.2Horizontal (Benchtop) Mounting
The Horizontal DCX S Power Supply is designed to be placed on a workbench (rubber feet
on bottom) within cable-length limits of the stack. It has one fan which draws cooling air
from the left side to the right side, which must be free from obstruction. The controls on
the front of the power supply should be accessible and readable for setup changes.
All electrical connections are made to the rear of the power supply, which should be
positioned in your workspace with adequate clearance, approximately 3 in (76.2 mm) or
more on either side, and 5 in (127 mm) to the rear) for cable access and ventilation. Do
not place anything on top of the power supply case.
For a dimensional drawing of the Horizontal DCX S Power Supply, see Figure 5.1 DCX S
Power Supply Benchtop Dimensional Drawing.
5.3.3Vertical Mounting
The Vertical DCX S Power Supply is designed to be mounted vertically (from the side or
back) within cable-length limits of the stack. It has one fan which draws cooling air from
the top to the bottom of the power supply, which must be free from obstruction. The
controls on the front of the power supply should be accessible and readable for setup
changes.
All electrical connections are made to the bottom of the power supply, which should be
positioned with adequate clearance (approximately 3 in (76.2 mm) or more on the top,
and 5 in (127 mm) to the bottom) for cable access and ventilation. Do not place anything
on top of the power supply case.
For dimensional drawings of the Vertical DCX S Power Supply, see figures Figure 5.2,
Figure 5.3, and Figure 5.4.
50100-412-183 REV. 13
5.3.4Mounting Considerations
In addition to the considerations mentioned above, the LCD’s viewing angle should be
taken into account when selecting a location for your DCX S Power Supply. The LCD is
designed to be viewed from the top. Please refer to Figure 5.5 LCD Viewing Angle below
when selecting a location for your DCX S Power Supply.
Figure 5.5LCD Viewing Angle
NOTICE
Optimal viewing angle is 25° above the normal to the display
(indicated by 0°).
100-412-183 REV. 1351
5.3.5Electrical Connections
Figure 5.6DCX S Power Supply Connections (Horizontal Model)
1
2
Table 5.3DCX S Power Supply Connections (Horizontal Model)
ItemDescription
1RF Connector
2Ground Screw
3User I/O Connector
4Cable Ties
5
6
7
8
3
4
5Circuit Breaker (On/Off Switch)
6L1
7L2
8GND
52100-412-183 REV. 13
Figure 5.7DCX S Power Supply Connections (Vertical Model)
2
1
3
4
5
6
Table 5.4DCX S Power Supply Connections (Vertical Model)
The user I/O is a standard interface for automation, provided on the power supply. It
provides the ability to make your own interface for your automation, special control, or
reporting needs. The interface cable has a 26-pin HD male D-Sub connector on one end,
and wires on the other end. Pins are wired to ICEA standard color code (see Figure 5.8
User I/O Cable Identification and Wire Color Diagram and Table 5.5 User I/O Cable Pin
assignments).
NOTICE
Ensure all unused wires are properly isolated. Failure to do so may
result in a power supply malfunction.
Digital I/O functions can be configured to either active-high or active-low using the DCX S
Power Supply Web Page Interface. Tables Table 5.6 Available Digital Input Functions to
Table 5.9 Available Analog Output Functions list the input and output functions available
on the DCX S Power Supply. See table Table 5.10 Default User I/O Connector Pin
Assignments for the default user I/O pin assignments.
Figure 5.9 Typical Digital I/O Wiring Examples and Figure 5.10 Typical Analog I/O Wiring
Examples show typical wiring examples.
For complete instructions detailing the web page interface consult the DCX S Power
Supply Web Page Interface Instruction Manual (100-412-187).
54100-412-183 REV. 13
Figure 5.8User I/O Cable Identification and Wire Color Diagram
User I/O Cable
Stripped Jacket one end,
HD-26 male connector other end
(cable length as ordered)
Wire Color Diagram
Two Colors = Insulator/Stripe
Three Colors = Insulator/Stripe/Dot
ItemDescription
1Part number
2Insulation
3Stripe
4Dot
100-412-183 REV. 1355
5.3.7User I/O Cable Pin Assignments
Table 5.5User I/O Cable Pin assignments
Input/Output
Pin*
(All I/O are user
definable)
1Digital in 1See Table
Available
Function
Signal
Type
Signal RangeColor
Blk
5.6
2Digital in 2Wht
3Digital in 3Red
Available
Digital
Discrete
Input
0 V to 24 V +/10%, 12 mA
Input
4Digital in 4Grn
5+24 V Supplied
from DCX S Power
6Blu
Supply
7Digital out 1See Table
8Digital out 2Red/Blk
9Digital out 3Grn/Blk
10Digital out 4Orn/Blk
14
GNDN/A
15Blu/Wht
Functions
N/A24 V Source
5.7
Available
Digital
Discrete
Output
Output
Functions
24 V
Ground
24 V +/-10%,
250 mA Max
0 V to 24 V +/10%,
25 mA Max
0 V
Orn
Wht/Blk
Grn/Wht
17Analog in 1See Table
Wht/Red
5.8
Available
18Analog in 2Orn/Red
Analog
Analog
Input
0 V to +10 V,
2 mA
Input
Functions
24Analog out 1
25Analog out 2
See Table
5.9
Available
Analog
Output
Analog
Output
0 V to +10 V,
1 mA Max
Red/Blk/
Wht
Grn/Blk/
Wht
Functions
26Analog GNDN/A
* Pins 11, 12, 13, 16, and 19-23 are not used.
Analog
Ground
0 V
Orn/Blk/
Wht
56100-412-183 REV. 13
5.3.8Available Digital Input Functions
Table 5.6Available Digital Input Functions
FunctionDescription
Disables ultrasonics if 24 V signal is removed when using 0 V
Cable Detect
Display LockLocks the front panel display controls
negative logic (active low) for the external Start input. Used to
prevent ultrasonics from coming on if a cable is removed.
External Horn
Scan
Starts horn scan sequence.
External ResetResets alarm conditions.
External Seek
Activates ultrasonic energy at 10% amplitude for the purpose of
finding the ultrasonic stack resonant frequency.
Activates ultrasonic energy at the currently set amplitude.
NOTICE
DCX S Power Supply must be in ready mode before External Start.
External Start
WARNING
When using 0 V to activate ultrasonics (External Start signal), it is
recommended to assign one input as Cable Detect to prevent sonics
from activating if 24 V is lost by accident.
External TestPerforms a test cycle.
Memory ClearCenters the power supply start frequency.
100-412-183 REV. 1357
5.3.9Available Digital Output Functions
Table 5.7Available Digital Output Functions
FunctionDescription
General AlarmIndicates an alarm occurred.
Overload AlarmIndicates an overload alarm has occurred.
ReadyIndicates the system is ready.
Seek/Scan OutIndicates either a seek or a horn scan is in progress.
Sonics ActiveIndicates sonics are active.
58100-412-183 REV. 13
5.3.10Available Analog Input Functions
Table 5.8Available Analog Input Functions
FunctionDescriptionValid Range
Amplitude In
Controls the amplitude of ultrasonic
energy that will be delivered by the power
supply.
1 V to 10 V*
(10% to 100%)
Controls the frequency offset to the
power supply operating frequency. Actual
offset depends on the power supply
operating frequency:
* If the input signals are not within their valid range, or if left unconnected, the power supply will use 50%
amplitude and zero frequency offset, respectively.
100-412-183 REV. 1359
5.3.11Available Analog Output Functions
Table 5.9Available Analog Output Functions
FunctionDescriptionValid Range
Amplitude Out
Power Out
Frequency Out
Provides a 0 V to 10 V output signal
proportional to amplitude (0% to 100%).
Provides a 0 V to 10 V output signal
proportional to ultrasonic power output (0%
to 100%).
Provides a 0 V to 10 V output signal that
indicates relative frequency in memory . Actual
frequency depends on the power supply
operating frequency:
Table 5.10 Default User I/O Connector Pin Assignments
Pin*FunctionI/O TypeValues
Apply +24 VDC to run cycle
1External StartInput Digital
NOTICE
DCX S Power Supply must be in ready
mode before External Start.
2External SeekInput DigitalApply +24 VDC to perform a seek
3External ResetInput DigitalApply +24 VDC to reset alarm
4Memory ClearInput DigitalApply +24 VDC to clear memory
5
6
7Ready
8Sonics Active
9General Alarm
10Seek/Scan Out
14
15
+24 VDC Source from
DCX S Power Supply
+24 VDC Return and
I/O Return
I/O Signal
Source
Output
Digital
Output
Digital
Output
Digital
Output
Digital
I/O Signal
Return
+24 V, 250 mA max. supplied from
DCX S Power Supply
+24 V indicates the system is ready
+24 V indicates ultrasonics are active
+24 V indicates an alarm occurred
+24 V indicates either Seek or a Scan
is in progress
Return for all pins except pins 17, 18,
24, and 25
17Amplitude InInput Analog1 V to + 10 V (10% to 100%)**
18Frequency OffsetInput Analog1 V to + 9 V (5 V is zero offset)**
24Power Out
25Amplitude Out
26Analog Signal Return
* Pins 11, 12, 13, 16, and 19-23 are not used.
** If the input signals are not within their valid range, or if left unconnected, the power supply will use 50%
amplitude and zero frequency offset, respectively.
Output
Analog
Output
Analog
Analog
Signal Return
0 V to + 10 V (0% to 100%)
0 V to + 10 V (0% to 100%)
Return for pins 17, 18, 24, and 25
100-412-183 REV. 1361
5.3.13Typical Digital I/O Wiring Examples
Figure 5.9Typical Digital I/O Wiring Examples
5.3.14Typical Analog I/O Wiring Examples
Figure 5.10 Typical Analog I/O Wiring Examples
62100-412-183 REV. 13
5.3.15Output Power (RF Cable) Connection
Ultrasonic energy is delivered to the SHV connector on the power supply, which is then
transmitted to the converter via the RF cable. The RF connector position depends on the
power supply configuration. For Horizontal models it is located on the rear panel of the
power supply. For Vertical models it is located on the bottom panel of the power supply.
To reduce electromagnetic interference (EMI), RF cables are equipped with a ferrite core
(plastic case) on one end. This end is meant to be connected to the power supply.
WARNINGHigh Voltage Hazard
Operating the System with the RF Cable disconnected or damaged
can present an electrical shock hazard.
WARNINGHigh Voltage Hazard
To avoid the possibility of electrical shock. Converters need to be
properly grounded.
NOTICE
To avoid the possibility of EMI interference, ensure the RF connection
to the power supply is made with the cable end that has the ferrite
core box attached (see Figure 5.11 RF Cable Connection).
Figure 5.11 RF Cable Connection
1
Table 5.11 RF Cable Connections
ItemDescription
1To Power Supply
2Ferrite Core Box
2
100-412-183 REV. 1363
5.3.16Input Power Connection
WARNINGHigh Voltage Hazard
Ensure all electrical power is off when wiring input power to your DCX
S Power Supply connector block.
To prevent the possibility of an electrical shock, ground the power
supply by securing an 8 gage grounded conductor to the ground
screw located next to the air outlet.
WARNINGHigh Voltage Hazard
If miss-wired, the power supply can present an electrical shock
hazard.
NOTICE
The power supply can be permanently damaged if it is connected to
the incorrect line voltage, or if the connection is mis-wired.
Use the following procedure to connect the power supply to a single-phase, grounded, 3wire, 50 Hz or 60 Hz 200 V to 230 V power source.
Table 5.12 Input Power Connection
StepAction
1Detach the connector block on the back of the power supply.
Use three properly sized wires (No. 12 gage, 2.5 mm or according to local
standards) to connect the line 1, line 2, and ground to the connector block as
shown on Figure 5.6 DCX S Power Supply Connections (Horizontal Model).
2
3
Choose wires according to the current rating as specified in Table 5.2 Input
Current and Circuit Breaker Specifications and on the label located on the
back of the unit. Be sure to use agency approved wiring and use sleeving or
tubing on each wire for double insulation.
Use cable ties to secure the wires to the connector block metal piece. This
will help to prevent the line and ground wires from becoming loose and will
also act as a strain relief.
4
64100-412-183 REV. 13
Secure an 8 gage grounded conductor to the ground screw located next to
the air outlet.
Table 5.12 Input Power Connection
StepAction
5
Connect the converter-booster-horn stack to the power supply using the RF
cable. See 5.3.15 Output Power (RF Cable) Connection.
Ensure the power switch on the back of the unit is in the OFF position. Plug
6
the connector block back into the power supply. Tighten the two securing
screws.
7
Connect the power supply to a single-phase, grounded, 3-wire, 50 Hz or
60 Hz 200 V to 230 V power source.
100-412-183 REV. 1365
5.4Power Supply Configuration
5.4.1Selecting the Alarm Mode
The DCX S Power Supply activates ultrasonic power after receiving an External Start
signal. Ultrasonic power remains on until you turn off the power supply or the External
Start signal. The DCX S Power Supply response to alarm conditions can be configured to
operate in one of two modes:
• Latching: In this mode the DCX S Power Supply requires alarm conditions to be reset before a
new weld cycle can begin. To reset alarm conditions while in this mode, either press the front
panel Reset key or send an External Reset signal using the user I/O connector
• Non-Latching: In this mode the DCX S Power Supply does not require alarm conditions to be
reset, and new weld cycle can begin upon receiving an External Start signal
The alarm mode is factory-set to non-latching. For instruction on how to change the alarm
mode refer to 7.4 Configuring the Power Supply Registers in Chapter 7: Operation and to
your DCX S Power Supply Web Page Interface Instruction Manual (100-412-187).
5.4.2Configuring the Power Supply
Certain power supply configurations can be modified from the factory setting if needed.
Although not usually requiring modifications from the factory setting, the following
features are selectable:
• Amplitude Control: Allows for varying the amplitude (10% to 100%) using the front panel LCD,
the web page interface, or by way of external controls (analog signal applied though the user I/O
analog input)
• Latching Alarms: Provides an option for selecting the power supply alarms to be latching (reset
required) or non-latching (reset by reapplying the start signal
• Start Ramp Time: Provides a selection for different start ramp times. This controls how fast the
amplitude of the horn rises from zero to the currently set amplitude. Long ramp times may be
useful when using large horns or high gain stacks
• End of Weld Frequency Store: Provides an option for selecting if the stack frequency is stored
at the end of each weld cycle
• Seek Ramp Time: Provides a selection for different power supply seek ramp times
• Timed Seek: Provides an option for monitoring, and storing the operating frequency at timed
intervals (60 seconds). Periodic frequency seeks may be helpful when welder is not used for long
periods of time. Seeks are timed from the moment sonics was last activated
• Seek Time: Provides an option for selecting seek duration
• Frequency Offset: Allows for varying the start frequency by way of external controls (analog
signal applied though the user I/O analog input) or setting a fixed value using the web page
interface. This is useful for certain applications, where the force imparted on the fixture or anvil
causes a frequency shift in the stack’s operation
For instruction on how to change the power supply settings refer to 7.4 Configuring the
Power Supply Registers in Chapter 7: Operation and to your DCX S Power Supply Web
Page Interface Instruction Manual (100-412-187).
NOTICE
Consult with Branson before changing any default factory setting.
66100-412-183 REV. 13
5.5Assembling the Acoustic Stack
CAUTIONGeneral Warning
The following procedure must be performed by a setup person. If
necessary, secure the largest portion of a square or rectangular horn
in a soft jawed vise. NEVER attempt to assemble or remove a horn by
holding the converter housing or the booster clamp ring in a vise.
CAUTIONGeneral Warning
Do not use silicone grease with Mylar plastic film washers. Use only 1
(one) Mylar plastic film washer of the correct inside and outside
diameters at each interface.
NOTICE
The use of a Branson torque wrench or the equivalent is
recommended. P/N 101-063-787 for 20 kHz, and 30 kHz systems
and 101-063-618 for 40 kHz systems.
Converter performance and reliability can be adversely affected if the converter ceramics
are subjected to temperatures above 140º F (60º C). The converter front driver
temperature should not exceed 122º F (50º C).
To prolong converter life and maintain a high degree of system reliability, the converter
should be cooled with clean, dry, compressed air, particularly if your application calls for
continuous ultrasonic operation. Converter cooling is especially critical in 40 kHz
applications.
Use one of the following procedures to determine if a converter is operating close to the
maximum allowable temperature. Check converter temperature immediately after
substantial machine operation and without power applied to the horn.
• Press a pyrometer probe (or similar temperature measuring device) against the front driver of
the converter assembly. Wait for the probe to reach the temperature of the shell. If the
temperature is 120º F (49º C) or higher, the converter requires a cooling air stream
• If a temperature measuring device is unavailable, use your hand to feel the shell of the converter.
If the converter is hot to touch, the converter requires a cooling air stream
High duty cycles require additional cooling for the converter. System average power must
be limited to the specified continuous maximum. Higher peak power, up to the maximum
acceptable power limit, with an on time of up to 10 seconds may be obtained, if
appropriate off time ensures that, on average, the continuous duty maximum power is not
exceeded.
Table 5.20 Continuous Duty Max. Power & Full Power Duty Cycle
Configuration
Continuous Duty
Max. Power
Full Power Duty Cycle
20 kHz / 1250 W 800 W10 s on 10 s off (50% Duty Cycle)
20 kHz / 2500 W1600 W10 s on 10 s off (50% Duty Cycle)
20 kHz / 4000 W2000 W 5 s on 15 s off (25% Duty Cycle)
30 kHz / 750 W 300 W 2 s on 2 s off (50% Duty Cycle)
30 kHz / 1500 W 800 W 2 s on 2 s off (50% Duty Cycle)
40 kHz / 400 W 300 W10 s on 10 s off (50% Duty Cycle)
40 kHz / 800 W 400 W10 s on 10 s off (50% Duty Cycle)
72100-412-183 REV. 13
If converter cooling is required, use the following steps:
Table 5.21 Converter Cooling Procedure
StepAction
1
Start with a 50 psi (345 kPa) air source or higher from a 0.06 in (1.5 mm) I.D.
orifice
2Perform a run of welding operations.
3
4
Immediately after completing the welding run, check the converter
temperature.
If the converter is still too hot, increase the diameter of the orifice in small
increments until the temperature falls within the ranges in the chart.
A 0.06 in (1.5 mm) orifice at 50 psi (345 kPa) will result in a reading of 80 ft3 (2.26 m3)
per hour. This should be sufficient to cool most operations requiring a cooling air stream.
In continuous welding operations, or applications with longer duty cycles, it may be
necessary to cool the horn as well as the converter. Horns may require cooling because of
the heat transfer from contacting the work piece.
100-412-183 REV. 1373
5.7Testing the Installation
To test the power supply follow the procedure described in 7.7 Ultrasonics Test Procedure
in Chapter 7: Operation.
74100-412-183 REV. 13
5.8Still Need Help?
Branson is pleased that you chose our product and we are here for you! If you need parts
or technical assistance with your DCX S Power Supply system, call your local Branson
representative. Please refer 1.3 How to Contact Branson for a list of Branson k ey contacts.
1Converter
2Booster
3One-half wavelength horn
4Recommended clamping area
5
* Overall horn length can vary beyond these typical dimensions depending on the application.
** Dimension varies with tuning and gain.
Booster front end diameter will vary with
amplitude
100-412-183 REV. 1387
6.1.1Component Functional Description
Ultrasonic Stack
Converter
The converter is mounted in the customer's automation as part of the ultrasonic stack. The
ultrasonic electrical energy from the power supply is applied to the converter (sometimes
called the transducer). This transforms the high frequency electrical oscillations into
mechanical vibrations at the same frequency as the electrical oscillations. The heart of the
converter are piezoelectric ceramic elements. When subjected to an alternating voltage, these
elements alternately expand and contract, resulting in better than 90% conversion of electrical
to mechanical energy.
Booster
It is important to be able to modify the horn face amplitude for successful ultrasonic assembly.
The booster provides a means to modify the amplitude. It is designed to couple different ratios
of ultrasonic energy to the horn, which will in turn increase or decrease the amplitude at the
face of the horn. This is accomplished by varying the ratios of the masses of the input and
output half sections of the booster.
The booster is a resonant half-wave section of aluminum or titanium. It is mounted between
the converter and the horn, as part of the ultrasonic stack. It also provides a clamping point for
rigid stack mounting.
Horn
The horn is selected or designed for a specific application. Each horn is tuned typically as a
half-wave section that applies the necessary force and vibration uniformly to the parts to be
assembled. It transfers ultrasonic vibrations from the converter to the workpiece. The horn is
mounted to the booster as part of the ultrasonic stack.
Depending on their profile, horns are referred to as stepped, conical, exponential, bar, or
catenoidal. The shape of the horn determines the amplitude at the face of the horn. Depending
on the application, horns can be made from titanium alloys, aluminum, or steel. Titanium
alloys are the best materials for horn fabrication due to their high level of strength and low
loss. Aluminum horns are usually chrome- or nickel-plated or hard-coated to reduce wear.
Steel horns are for low amplitude requiring hardness, such as ultrasonic insertion applications.
Solid Mount Boosters
The solid mount booster is a one-half wave-length resonant section made exclusively of
titanium. It is mounted between the converter and the horn, modifying the amplitude of
vibration applied to the horn and providing a clamping point.
The solid mount booster is superior to prior versions in that deflection is minimized. This is the
result of a redesigned clamp-ring which employs a metal-to-metal press fit rather than an Oring assembly.
The advantage this booster offers is its improved rigidity. For continuous applications, this
means more energy delivered to the product, while in plunge applications, improved alignment
is possible. The solid mount provides improved positional alignment and will benefit continuous
applications where high force, high side load, or high cycle rates are necessary. In plunge
welding applications, overall deflection is reduced by an average of 0.0025 in. (0.064 mm)
over a wide variety of materials, joint designs, and operating conditions. The results of this
testing in combination with information drawn from field testing indicate that the solid mount
will benefit plunge applications where precision alignment is necessary (such as staking,
swaging, or insertion) or where concentricity/parallelism is critical.
On DCX S Power Supply, ultrasonic power activates after receiving an External Start signal
at the corresponding user I/O.
NOTICE
DCX S Power Supply must be in ready mode before External Start.
Ultrasonic power remains On until you turn off the power supply or the External Start
signal. For default user I/O assignment see 5.3.6 User I/O Connections For information on
configuring the power supply user I/O refer to your DCX S Power Supply Web Page
Interface Instruction Manual (100-412-187).
90100-412-183 REV. 13
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