The information contained in this manual is subject to change by Advanced Energy
Industries, Inc. without prior notice. Advanced Energy Industries, Inc. makes no warranty of
any kind whatsoever, either expressed or implied, with respect to the information contained
herein. Advanced Energy Industries, Inc. shall not be liable in damages, of whatever kind, as
a result of the reliance on or use of the information contained herein.
PRODUCT USAGE STATEMENT
WARNING :
Read this entire manual and all other publications pertaining to the work to
be performed before you install, operate, or maintain this equipment. Practice
all plant and product safety instructions and precautions. Failure to follow
instructions can cause personal injury and/or property damage. If the
equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired. All personnel who
work with or who are exposed to this equipment must take precautions to
protect themselves against serious or possibly fatal bodily injury.
Advanced Energy Industries, Inc., (AE) provides information on its products
and associated hazards, but it assumes no responsibility for the after-sale
operation of the equipment or the safety practices of the owner or user.
NEVER DEFEAT INTERLOCKS OR GROUNDS.
TRADEMARKS
is a registered trademark of Advanced Energy Industries, Inc.
Cesar® is a registered trademark of Advanced Energy Industries, Inc.
iv57023916-00B
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Modbus® is a registered trademark of Gould, Inc.
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SERTO® is a registered trademark of SERTO Ltd.
Siemens® is a registered trademark of Siemens AG.
VarioMatch™ is a trademark of Advanced Energy Industries, Inc.
Windows® is a registered trademark of the Microsoft Corporation.
Cesar® Generator
Windows NT® is a registered trademark of the Microsoft Corporation.
CUSTOMER FEEDBACK
Advanced Energy’s technical writing staff has carefully developed this manual using
research-based document design principles. However, improvement is ongoing, and the
writing staff welcomes and appreciates customer feedback. Please send any comments on the
content, organization, or format of this user manual to:
• tech.writing@aei.com
To order a manual, please contact Technical Support:
• technical.support@aei.com
57023916-00Bv
Advanced Energy
vi57023916-00B
Cesar® Generator
Table of Contents
Chapter 1. Safety and Product Compliance Guidelines
Products Documented in this Manual ................................................................... 1-1
Important Safety Information ................................................................................. 1-1
Danger, Warning, and Caution Boxes in the Manual ............................................ 1-1
Figure 5-8. AC Input (Mains) connector .............................................................. 5-11
Figure 5-9. Front panel ........................................................................................ 5-19
Figure 5-10. Front panel program menu tree ...................................................... 5-22
Figure 5-11. Front panel program menu tree (continued) ................................... 5-23
Figure 5-12. Generator with no cable attenuation ............................................... 5-48
Figure 5-13. Generator with cable attenuation .................................................... 5-48
Figure 6-1. Input (Mains) connector and fuse box ................................................ 6-4
xiv57023916-00BList of Figures
Cesar® Generator
1027
Chapter
Safety and Product Compliance
Guidelines
PRODUCTS DOCUMENTED IN THIS MANUAL
This user manual documents air-cooled Cesar generators.
The following part numbers include some non-standard features, which will be called
out where they apply:
• 61300129: DC Bias Out on the User Port. All other part numbers: DC Bias In
on the User Port.
• 61300121: 0 V to 5 V scaling on the User Port. All other part numbers: 0 V to
10 V scaling on the User Port.
1
IMPORTANT SAFETY INFORMATION
To ensure safe installation and operation of the Advanced Energy Cesar unit, read
and understand this manual before attempting to install and operate this unit. At a
minimum, read and follow the safety guidelines, instructions, and practices.
DANGER, WARNING, AND CAUTION BOXES
IN THE MANUAL
This symbol represents important notes concerning potential harm to people, this
unit, or associated equipment. Advanced Energy includes this symbol in Danger,
Warning, and Caution boxes to identify specific levels of hazard seriousness.
DANGER:
DANGER indicates an imminently hazardous situation that, if not avoided,
will result in death or serious injury. DANGER is limited to the most extreme
situations.
57023916-00BSafety and Product Compliance Guidelines1‑1
Advanced Energy
WARNING:
WARNING indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury, and/or property damage.
CAUTION:
CAUTION indicates a potentially hazardous situation that, if not avoided,
could result in minor or moderate injury, and/or property damage. CAUTION
is also used for property-damage-only accidents.
SAFETY GUIDELINES
Review the following information before attempting to install and operate the
product.
Rules for Safe Installation and Operation
Please note the following rules:
• Do not attempt to install or operate this equipment without proper training.
• There are no user-serviceable parts inside the unit. Refer servicing to trained
service personnel.
• Ensure that this unit is properly grounded.
• Ensure that all cables are properly connected.
• Verify that input line voltage and current capacity are within specifications
before turning on the power supplies.
• Use proper electrostatic discharge (ESD) precautions.
• Always be careful around this equipment.
INTERPRETING PRODUCT LABELS
The following labels may appear on your unit:
1‑2Safety and Product Compliance Guidelines57023916-00B
1020
CE label
1029
1028
1030
1027
Protective Earth ground
Hazardous voltage
Nonionizing radiation
Cesar® Generator
PRODUCT COMPLIANCE
The following sections include information about unit compliance and certification,
including the conditions of use required to be in compliance with the standards and
directives.
Product Certification
NRTL: Nationally Recognized Testing
Laboratory
Refer to manual for more information
Electrical fuse
Certain options of this product may be certified according to the list below.
For more information, refer to the Certificate or Letter of Conformity (US) or
Declaration of Conformity (EU) accompanying the product.
• NRTL – Safety certified by CSA International, a Nationally Recognized
Testing Laboratory
• CE Marking – Self-declaration, assessed by AE Corporate Compliance
57023916-00BSafety and Product Compliance Guidelines1‑3
Advanced Energy
• EMC measurements – Verified by the AE Corporate Compliance Lab and/or an
accredited third party lab
Safety and EMC Directives and Standards
Certain options of this unit have been tested for and comply with the following
electromagnetic compatibility (EMC) and safety directives and standards and
industry guidelines.
☞Important
This device must be installed and used only in compliance with the directives
and standards listed in addition to EN 60204 (IEC 60204) and applicable
requirements.
☞Important
This equipment must be installed and used in accordance with the Conditions
of Use described in this manual. If this equipment is expanded, modified, or
installed into a larger system, the user is responsible to guarantee the
compliance of the overall system. If this equipment is used with external
components, the user must ensure that the Safety and EMC requirements are
not violated.
ELECTROMAGNETIC COMPATIBILITY (EMC) DIRECTIVES
AND STANDARDS
• 2004/108/EC
EC Council directive on the approximation of the laws of the Member States
relating to electromagnetic compatibility (EMC Directive)
• 47 CFR Part 18
Code of Federal Regulations—Limits and methods of measurement of radio
interference characteristics of industrial, scientific, and medical equipment
• EN 55011
Limits and methods of measurement of radio disturbance characteristics of
industrial, scientific, medical (ISM) radio frequency equipment (Class A, Group
EC Council directive on the harmonization of the laws of the Member States
relating to electrical equipment designed for use within certain voltage limits
(LVD - Low Voltage Directive)
• EN 61010-1
1‑4Safety and Product Compliance Guidelines57023916-00B
Safety requirements for Electrical Equipment for Measurement, Control, and
Laboratory Use - Part 1: General Requirements
Conditions of Use
To comply with the stated directives and standards, you must meet the following
conditions of use:
DANGER:
RISK OF DEATH OR BODILY INJURY. Disconnect and lockout/tagout all
sources of input power before working on this unit or anything connected to
it.
• Before making any other connection to this device, connect the auxiliary
Protective Earth ground terminal to a local earth ground with a copper wire that
is sized according to the applicable requirements.
• Install and operate this device only in accordance with the listed safety
guidelines and all other applicable directives and standards specific to your
process and application.
Cesar® Generator
• Install and operate this device in an overvoltage category II or better
installation.
• Install and operate this device only in a pollution degree 2 or better
environment, which means an indoor location such as a computer room, office,
or factory floor where only nonconductive pollution occurs during operation.
Occasionally, condensation causes temporary conductivity when the device is
not operating.
• Install this device so that it is fully enclosed by a rack or other enclosure. The
rack or enclosure must be metal and either reinforced or of sufficient thickness
to resist both of the following tests:
◦ A steady force of 445 N, applied through a steel hemisphere 12.7 mm in
diameter
◦ An impact of 7 J, applied by dropping or swinging a 0.53 kg, 50 mm diameter
steel sphere
◦ Following the tests, there must be still a minimum clearance of 12.7 mm
between the rack or enclosure and the power supply. There shall be no
deformation of the power supply.
• The on/off power switch does not completely disconnect the AC input. If the
AC power cord is not accessible after installation, a separate external switch is
required to disconnect AC power.
• The AC line cord must be terminated according to the applicable requirements.
• Use only shielded cables on the serial and user communications interfaces.
57023916-00BSafety and Product Compliance Guidelines1‑5
Advanced Energy
• Install and operate this device with a 16 A (maximum) circuit breaker switch on
the AC input to provide the required over-current protection. The circuit breaker
switch must be easily accessible and near the device.
• Install this device so that the input power connection is inaccessible to the user.
• Install this device so that the output power connection is inaccessible to the
user.
INTERLOCKS AND LIMITING CONDITIONS
WARNING:
Advanced Energy products only include interlocks when required by product
specification. Interlocks in Advanced Energy products are not intended to
meet or satisfy safety requirements. Where interlocks exist, you must still
meet and satisfy safety requirements. The presence of interlocks does not
imply operator protection.
All Cesar generators have an Interlock interface. This interface allows you to
integrate any Cesar generator into a system interlock loop that can interrupt the
delivered RF power.
Even if you do not connect this Cesar generator into a larger system interlock loop,
you must make the proper interlock loop connections for the unit to enable RF power.
The Cesar generator may be shipped with an interlock jumper plug that provides a
connection between the User Port interlock pins. You can use this jumper plug to
satisfy the interlock and enable operation in situations where you do not intend to
connect the remaining pins on this port.
☞Important
Using the interlock jumper plug disables the interlock function.
☞Important
Interlock does not switch the generator on/off. If an interlock is not satisfied,
the Cesar generator will issue an interlock error. Interlock errors must be
resolved, so you must switch RF off (via the RS-232 or User Port) or resolve
the error (via the front panel) before you can switch on RF power again.
Your unit may include an RF cover. For units with an RF cover:
• RF output is disabled when the cover is removed. Ensure that the RF cover is in
place.
• In addition to the interlock jumper plug for the User Port and the RF cover,
your unit uses an RF / User Port interlock adapter cable. For information on
connecting this cable, see “Connecting Output Power” on page 5-6.
1‑6Safety and Product Compliance Guidelines57023916-00B
Cesar® Generator
In addition, the Cesar generator includes specific limits that are described in
Table 1-1. The errors generated by exceeding these limits are described in
“Troubleshooting Using Error Codes” on page 6-7.
Table 1‑1. Cesar limiting conditions
LimitUnit Response and User Resolution
RF power limitWhen the unit reaches the forward or reflected power limit, the
unit reduces forward power to remain within the limits. Output
is not at set point.
OvertemperatureWhen the unit exceeds the specified maximum temperature, RF
power shuts off, and the unit displays an error code.
Current limitWhen the voltage or the current exceeds the limit of the
internal SMPS, the unit reduces output to remain within the
limits. Output is not at set point.
External pulse frequency limitWhen the external pulse frequency exceeds the limit, the unit
turns RF power off.
Target lifetime limitThe target lifetime warning occurs when the target lifetime
reaches the user-set limit. This warning does not affect the
operation of the unit.
57023916-00BSafety and Product Compliance Guidelines1‑7
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1‑8Safety and Product Compliance Guidelines57023916-00B
Cesar® Generator
Chapter
Product Overview
GENERAL DESCRIPTION
AE Cesar RF power generators are Class E Switched Mode Amplifiers for Radio
Frequency (CESAR), a new generation of versatile RF power supplies for
semiconductor production, and general plasma processing. This generator employs
parallel excited circuitry in a compact, 19″ rack-mountable designs. Typical
applications include sputtering, reactive ion etching, RF bias, plasma
polymerization, plasma surface treatment, and CO2 laser systems.
The Cesar generator incorporates advanced switch mode technology. This highly
efficient, resonant switching concept results in reduced energy costs, reduced
downtimes, and a longer lifetime for the unit.
Designed to regulate power into a broad range of output impedances, the Cesar
generator can operate in forward power, real power, or DC bias regulation mode In
addition, you can add a cable attenuation variable to the power regulation setting.
2
Both manual and automatic tuning control support operation into a fixed impedance
matching network, which simplifies system complexity, increases reliability, and
improves process-to-process repeatability.
You can control and configure the Cesar generator using any of the following
methods:
• Remotely through an analog User Port.
• Remotely through a communication host port.
• Using the front panel, which features a liquid crystal display (LCD) with an
easy-to-use menu.
The Cesar generator operates from an AC power source. The unit can tolerate
arbitrary phase rotation of the input power connections. The generator is air-cooled
and has all power and interface-port connections at the rear of the generator.
57023916-00BProduct Overview2‑1
2965
(2)
Driver/Exciter
(1)
Analog I/O
(5)
Digital
Controller
(3)
RF
Amplifiers
(4)
RF Power
Measurement
(6)
Sensor
Electronics
User Port
Host Port
RF Output
Advanced Energy
THEORY OF OPERATION
Figure 2‑1. Cesar block diagram
ModuleDescription
(1) Analog I/OThis module provides the User interface.
(2) Driver/ExciterThis module generates power at the designated output
frequency to drive the main RF sections and contains the
CEX functions.
(3) RF AmplifiersThis module generates RF power.
(4) RF Power
Measurement
(5) Digital
Controller
This module samples the output signal and sends it to the
sensor electronics.
This module is the main processor and data acquisition
section. It also provides host communications through a host
port.
(6) Sensor
Electronics
This module detects RF samples and sends them to the
microprocessor.
2‑2Product Overview57023916-00B
Cesar® Generator
Chapter
Specifications
PHYSICAL SPECIFICATIONS
Table 3‑1. Physical specifications
DescriptionSpecification
General physical specifications
Size88 mm (H) x 483 mm (W) x 500 mm (D)
3.5″ (H) x 19″ (W) x 19.7″ (D)
Dimensions include front panel mounting extensions.
Dimensions do not include RF output, fan, connectors.
3
Weight19.2 kg (42 lb)
Mounting
Clearance6 cm (2.36″) required on each side for airflow; 10.16 cm (4″)
required at rear for cable connections
Mounting19″ rack-mounting holes are provided on the generator front
panel.
Connectors
AC input powerIEC 60320 C14 inlet; mates with IEC 60320 C13 connector on
power cord
RF outputN-Type, female connector
User port connection (Analog
I/O)
Host port connection (serial I/O)The Cesar generator has three host port communication
There are two analog interface options available for the Cesar
generator:
• 25-pin subminiature-D male
• 15-pin subminiature-D male
interface options:
• An RS-232 9-pin, female, shielded, subminiature-D
connector
• A PROFIBUS 9-pin, female, subminiature-D connector
• An Ethernet Modbus/TCP connection
CEXCEX BNC, female
Front panel displayLCD graphic display
57023916-00BSpecifications3‑1
Advanced Energy
ELECTRICAL SPECIFICATIONS
Table 3‑2. Electrical specifications
DescriptionSpecification
Electrical requirements
AC input voltage230 VAC (187 VAC to 253 VAC), 1 φ, neutral, with ground (PE)
AC line frequency50 Hz to 60 Hz
AC input currentSee the product label on your unit for the AC Current
Input powerVaries by your unit's AC input current. See the product label on
your unit for the AC Current. The input power specification is
based on full rated power and nominal line into 50 Ω load.
AC input currentInput power
2.8 A650 VA
3 A680 VA
4.6 A1050 VA
4.8 A1100 VA
6.5 A1490 VA
6.8 A1550 VA
8 A1780 VA
10 A2225 VA
Power factor97% to 99% at full rated power, mid-frequency, and nominal line
into 50 Ω load
Overcurrent protection10 A, 250 V, T, high breaking capacity H electrical fuse (for
example, Schurter 0001.2514)
Efficiency (line to load)Varies by unit. Effeciency listed below is typical at full-rated
power nominal line, into a 50 Ω load.
• 56% — Models 605, 6010
• 58% — Models 403, 405, 4010
• 63% — Models 273, 276, 2710 6
• 65% — Models 026, 046, 133, 136
• 66% — Models 0210, 0410, 1310, 1312
Power specifications
RF frequencySee your unit’s product label for the RF Frequency. Accuracy is
± 0.005%
3‑2Specifications57023916-00B
Table 3‑2. Electrical specifications (Continued)
DescriptionSpecification
Minimum output power1% of your unit’s maximum output power.
The Cesar generator can operate below this level, but accuracy is
not guaranteed.
Maximum output powerSee your unit’s product label for the RF Power.
Cesar® Generator
Delivered power into
mismatch
Varies by output power (see your unit's label for RF Power)
RF powerDelivered power
300 W33% of nominal power
500 W30% of nominal power
600 W33% of nominal power
1000 W20% of nominal power
1200 W16% of nominal power
Maximum reflected
power
Varies by power (see your unit's label for RF Power)
RF powerMaximum reflected power
300 W100 W
500 W175 W
600 W, 1000 W, 1200 W200 W
Load impedance50 Ω
HarmonicsAt full rated output, all harmonics are 45 dB below the RF output
signal when operated into a 50 Ω, nonreactive load impedance. All
spurious (nonharmonic) outputs are 60 dB below the RF output
signal.
RF power regulation1.0% of set point or 0.1% of full rated power, whichever is greater
RF power stability1.0% of set point or 0.2% of full rated power, whichever is greater
RF pulse frequency
• 1 Hz to 10 kHz for units with RF Frequency of 2 MHz through
4 MHz
• 1 Hz to 30 kHz for units with RF Frequency of 13.56 MHz
through 60.0 MHz
RF pulse duty cycle1% to 99%
CEX Specifications
CEX input signal
• TTL or Sine; 0 to + 19 dBm, 50 Ω for models 2710, 403, 405,
4010