AR 5000A225A Operating And Service Manual

Rf broadband amplifier
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Operating and
Service Manual
5000A225A
Model
10044005
Part Number
Serial Number
160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us

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  • Page 1 Operating and Service Manual 5000A225A Model 10044005 Part Number Serial Number 160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us...
  • Page 3 REGULATION (EC) 1907/2006 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 18 December 2006 concerning the Registration, Evaluation, Authorization and Restriction of Substances of Very High Concern Chemicals (SVHC) Supporting documentation is held by AR RF/Microwave Instrumentation’s Quality department in Pennsylvania, United States. Place of issue:...
  • Page 5 Instructions for European EMC Conformity WARNING It is the responsibility of the user of this equipment to provide electromagnetic shielding, filtering and isolation which is necessary for EMC compliance to Directive 2014/30/EU. The equipment must therefore be operated in a shielded area which provides a sufficient level of attenuation to meet the radiated emissions and immunity specifications.
  • Page 7 Avoid sudden care. stops and uneven surfaces. BEFORE APPLYING POWER Indicates a terminal intended for connection to an Your AR equipment may have more than one power supply external conductor protection against cable. Use only approved power cable(s). If you have not been...
  • Page 8 EQUIPMENT CONTAINING LASERS to unsafe product handling should be AR Field Probes (FL/PL Series) and Field Analyzers a fundamental consideration of every (FA Series) are Class 1 laser products containing user. An authoritative guideline for embedded Class 4 lasers.
  • Page 9: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ....................i GENERAL INFORMATION ................1 General Description ....................1 Specifications ......................1 Power Supplies ...................... 2 Protection Circuits ....................2 Installation ......................3 1.5.1 Location ......................... 3 1.5.2 AC Power ....................... 3 1.5.3 Driver Output Cables .....................
  • Page 10 Model 5000A225A 2.4.2.6.1 Power On/Off ....................24 2.4.2.6.2 RF On/Off ...................... 24 2.4.2.6.3 Reset Faults ....................25 2.4.2.6.4 Mode Select ....................25 2.4.2.6.5 Level Adjust ....................25 2.4.2.6.6 Identity ......................26 2.4.2.6.7 IO Board Firmware Revision ................. 26 2.4.2.6.8 Machine State ....................27 2.4.2.6.9...
  • Page 11 Assemblies that require physical replacement to update firmware ...... 56 LIST OF FIGURES 5000A225A AC Line Cord Installation ..............3 5000A225A Connector Locations (Rear View Left, Front View, Right) ....5 Digital Control Panel (DCP) Features ..............9 Rear Panel Features ..................... 10 Model 5000A225A Interface Block Diagram ............
  • Page 12 2-16 Remote Screen ...................... 19 2-17 Fault Screen ......................19 5000A225A MPA / Module Locations (Rear View) ........... 50 LIST OF TABLES RS-232 Port Settings .................... 21 RS-232 (DCE) Port Pinout Diagram DB-9 Female ..........21 Fiber-Optic Serial Port Settings ................22 Relationships between the Model 5000A225A Controls and Remote Communication ....................
  • Page 13: General Information

    RF sweep generator, will provide a minimum of 5000 watts of swept power covering the frequency range from 0.01 to 100 MHz, derating to 3500 watts from 100 MHz to 225 MHz. The Model 5000A225A is housed in a single stylish contemporary equipment cabinet.
  • Page 14: Power Supplies

    Model 5000A225A POWER SUPPLIES The Model 5000A225A is a modular design with each section having self-contained power supplies. These power supplies are self-contained, regulated switching units. The Main Power Amplifier (MPA) unit has a supply providing +42V as the main source of power for the amplifier circuitry.
  • Page 15: Installation

    Select an operating location that will permit free air circulation around the amplifier’s cabinet. The Model 5000A225A utilizes air cooling and should be located where the normal flow of air into or exiting from the unit will not be restricted, diverted, or re-circulated through the unit itself. For example, do not position the unit next to a wall or other equipment that would cause a restriction of airflow into or out of the unit.
  • Page 16: 1.5.3 Driver Output Cables

    Due to the variety of power systems available, line cords are not shipped with this unit. The user must install the recommended supply line in the unit. The Model 5000A225A requires a line cord having #4 AWG conductors for low-voltage installations, and #8 AWG conductors for high-voltage installations. To install the line cord, referring to Figure 1-1, remove the power distribution box cover, located at the middle of the cabinet, in the rear.
  • Page 17: Other Connections

    MPA CIRCUIT BREAKER MPA 2 Figure 1-2. Model 5000A225A Connector Locations (Rear View Left, Front View) 1.6.1 Amplifier Input Connector The RF input N type connector for the amplifier can be located on the front or rear of the driver/control unit.
  • Page 18 Model 5000A225A Rev B...
  • Page 19: Amplifier Input Connector

    Specifications Features 5000A225A The Model 5000A225A is a solid-state, self- touch screen display to indicate the operate contained, broadband amplifier designed for status and fault conditions if an over-  5000 Watts CW applications where instantaneous bandwidth, temperature or power supply fault has oc- ...
  • Page 20 20 dBc maximum at 3000 watts SPURIOUS: Minus 70 dBc typical PRIMARY POWER (User must specify): 200-240 VAC or 380-415 VAC, 3-phase, 50/60Hz, 20 kWatts Ordering Options Contact your AR RF/Microwave Instrumentation Sales Associate for specific model configuration pricing.
  • Page 21 Page 3 Graphs 5000A225A  5000 Watts CW  10kHz–225MHz...
  • Page 22 Page 4 Graphs 5000A225A  5000 Watts CW  10kHz–225MHz To order AR Products, call 215.723.8181. For an applications engineer call:800.933.8181. Direct to Service call: 215.723.0275 or email: service@arworld.us For Faxing Orders:866.859.0582 (Orders Only Please) info@arworld.us Approved for public release by AR RF/Microwave Instrumentation...
  • Page 23: Operating Instructions

    CONTROL AND INDICATOR FUNCTIONS The Model 5000A225A’s front panel is shown in Figure 2-1; the unit’s rear panel features are detailed in Figure 2-2. Figure 2-1 Digital Control Panel (DCP) Features...
  • Page 24: Interface Identification And Diagrams

    15-pin DIN Contactor Interlock Type BNC Fwd/Rev Coupled Input Type BNC INTERFACE IDENTIFICATION AND DIAGRAMS Electrical Power RF Signal Input 5000A225A Amplifier RF Signal Output Local Control Panel Remote I/O Ports Figure 2-3. Model 5000A225A Interface Block Diagram Rev B...
  • Page 25: Rf Input

    The Remote option allows for control of the Model 5000A225A using any of the remote (I/O) ports found on the rear of the unit. The Inhibit option allows the Model 5000A225A to be placed into a locked state preventing both local and remote control.
  • Page 26: Local Control Interface

    2.4.1.2 Power Button The momentary POWER button turns the main power to the Model 5000A225A on and off. The status of the green light-emitting diode (LED) in the switch indicates whether the Model 5000A225A’s power is on or off. The main power supply fans are active when power is on. The LCD touch display is active as long as the main circuit breaker for the Model 5000A225A power entry module is on.
  • Page 27: Inhibit Screen

    Inhibit Screen The Inhibit screen is used as an indication to the user that the Model 5000A225A is in an inhibited mode. In Inhibit Mode, the POWER button cannot be used, and no touch screen menu options are available. In addition, the ADJUST knob is disabled.
  • Page 28: Main Menu Screen

    At the bottom of the screen are the forward and reverse power indicator bar graphs and associated values in Watts. The scale of the bar graphs is based on a range of 0 to rated power. For the Model 5000A225A rated power is 5000Watts.
  • Page 29: Select Screen

    Model 5000A225A 2.4.1.5.3 Select Screen The Select screen is the same as the Main Menu screen with the exception of the menu options. The menu options in this screen allow the user to select what parameter the ADJUST knob can adjust. Once a selection is made, the screen will automatically change back to the Main Menu screen.
  • Page 30: User Screen

    Model 5000A225A 2.4.1.5.5 User Screen The User screen presents the user with the revision levels of all the firmware that is running on all the main control system components. For the Switch Breakout Board (SBB) assemblies, only the piggy-back assembly firmware is listed.
  • Page 31: I/O Screen

    Model 5000A225A 2.4.1.5.7 I/O Screen The I/O screen is used to present the user with menu options pertaining to the remote I/O ports found on the rear of the unit and the interaction with the touch screen. These options include the GPIB address, RS- 232/Fiber-Optic Serial Baud Rate, and key beep.
  • Page 32: Rs-232/Fiber-Optic Serial Baud Rate Screen

    Model 5000A225A 2.4.1.5.9 RS-232/Fiber-Optic Serial Baud Rate Screen The RS-232/Fiber-Optic Serial Baud Rate screen is used to select the baud rate used by both the RS-232 port and the Fiber-Optic Serial port. A thin black outline indicates the present baud rate selection. When the back button is pushed the baud rate selection is stored to non-volatile memory.
  • Page 33: Remote Screen

    Model 5000A225A 2.4.1.5.11 Remote Screen When the Keylock switch is set to the REMOTE position the Remote screen appears. This screen has all the same information as the Main Menu screen except that the blue bar graph and associated value are only for the RF Gain value.
  • Page 34: Remote Control Interface

    Communicating through two or more ports at one time will cause data collisions and lost commands or queries. The Keylock switch on the control panel of the Model 5000A225A allows it to be controlled using remote communications. All remote queries will work in any Keylock switch position, but all remote commands will only work when the position is set to REMOTE.
  • Page 35: Fiber-Optic Serial Communication

    The Fiber-Optic port provides the user with the ability to optically isolate the controlling PC from the Model 5000A225A. This can be useful in an environment where RF/Microwave energy could be coupled onto a connection to one of the “wired” communications ports and fed back to the controlling PC.
  • Page 36: Usb Communication

    This port can be used in conjunction with either an AR Model IF7000 RS-232 to Fiber-Optic Interface (1200 to 9600 baud only) or an AR Model IF7001 USB to Fiber-Optic Interface (19200 baud only). Note that these devices use SMA connectors so a fiber-optic cable is needed with ST connectors on one end and SMA connectors on the other.
  • Page 37: Remote Commands

    An application program on the computer/controller should issue only one character string (command or query) at a time. After each functional command is issued, the Model 5000A225A’s status should be checked to ensure that the command has been properly executed. The application program should allow sufficient time for the function to be completed before checking the status.
  • Page 38: Power On/Off

    Model 5000A225A Table 2-4. Relationship between the Model 5000A225A Controls and Remote Communication AC Power and Power Keylock Switch Remote Circuit Breaker Communication INHIBIT LOCAL REMOTE Command Query √ √ √ √ √ √ √ √ √ √ √ √...
  • Page 39: Reset Faults

    Response Format: None (No query for this command) Example: To clear any faults, send the following command: RESET<LF> 2.4.2.6.4 Mode Select This command sets the ALC mode of the Model 5000A225A. Syntax: MODE:x Parameters: Mode(x): MANUAL = Set to Manual/CW mode ALC<space>INT = Set to ALC Internal mode...
  • Page 40: Identity

    Response Format: f,m,n,<LF> Where: f = manufacturer m = model designation n = firmware revision Example: To get the identity of the Model 5000A225A, send the following command: *IDN?<LF> Response: AR-RF/MICROWAVE-INST, 5000A225A,1.0<LF> 2.4.2.6.7 IO Board Firmware Revision Query to get the firmware revision of the I/O Board.
  • Page 41: Machine State

    Model 5000A225A 2.4.2.6.8 Machine State This query reads the RF gain, detector gain, ALC threshold, and ALC response time of the Model 5000A225A. Syntax: MSB? Parameters: None Query only (always requires a ? character) Response Format: RF<space>GAIN=x, DT<space>GAIN=x, THRES=x, RESP=y<LF>...
  • Page 42: State

    They can be 0 to 9 or A to F. Each hexadecimal character represents a 4-bit binary number. This 4-bit number is a bit pattern which contains information about the state of the Model 5000A225A. The definitions of these bit positions can be found in the table below.
  • Page 43: Forward Power

    Model 5000A225A 2.4.2.6.10 Forward Power Query to get the forward power. Syntax: FPOW? Parameters: None Response Format: FPOW=x<LF> Where: x = 0 to 99999 Values are corrected and linearized. They can be up to five digits in length. Leading zeros are read as spaces.
  • Page 44: Rf Gain

    RFG? Parameters: None Response Format: RFG=<space>x<LF> Where: x = 0000 to 0100 Example: To find out the RF gain of the Model 5000A225A, send the following query: RFG?<LF> Response: RFG=<space>0075<LF> (75% Gain) 2.4.2.6.13 Faults Query to find the faults that have occurred with the Model 5000A225A.
  • Page 45: Operating Hours (Rf On)

    Model 5000A225A 0050 MPA2 A1-UC Module A1 Under Current 0051 MPA2 A2-UC Module A2 Under Current 0052 MPA2 A3-UC Module A3 Under Current 0053 MPA2 A4-UC Module A4 Under Current 0054 MPA2 A1-OC Module A1 Over Current 0055 MPA2 A2-OC...
  • Page 46: Operating Hours (Power On)

    Model 5000A225A 2.4.2.6.15 Operating Hours (Power On) Query to get the Power On operating hours. Syntax: OHP? Parameters: None Response Format: OHP=x<LF> Where: x = 0 to 100000 Units are Hours. Values can be up to six digits in length. Leading zeros are read as spaces.
  • Page 47: Remote Operating Timeout

    Model 5000A225A n is the two digit MPA number which was selected with the Initiate MPA Coolant Temperature and Transistor Currents Command. If n is 00 then the data in the buffer has already been read and the Initiate MPA Coolant Temperature and Transistor Currents Command must be issued again.
  • Page 48: Alc Board Firmware Revision

    Model 5000A225A 2.4.2.6.19 ALC Board Firmware Revision Query to get the firmware revision of the ALC board assembly. Syntax: *ALC? Parameters: None Query only (always requires a ? character) Response Format: ALC_SW_REVx<LF> Where: x = firmware revision Example: To get the firmware rev. of the ALC board assembly, send the following command: *ALC?<LF>...
  • Page 49: Sbb (Optical) Firmware Revision

    Model 5000A225A 2.4.2.6.21 SBB (Optical) Firmware Revision Query to get the firmware revisions (groups of twenty) of the SBB assemblies that are fiber-optically connected to the MPB assembly. Syntax: *SBBn? Parameters: n = group number (1 or 2) Query only (always requires a ? character) Response Format: SBB_SW_REVx<LF>...
  • Page 50: Ac Power-On Defaults

    Model 5000A225A 2.4.2.6.23 AC Power-On Defaults Default settings that are applied at AC mains power-on can be changed by adding the following prefix to select commands. Syntax: DEFAULT: Compatible commands: Level Adjust LEVEL:GAIN LEVEL:DET (Not available on all models) LEVEL:THR...
  • Page 51: Interlocks

    Switch is set to REMOTE). After the AC Interlock fault is cleared, the RF ON command must be re-asserted to return to an RF ON condition. RF OUTPUT The output of the Model 5000A225A is provided through a male 1-5/8 EIA Female RF connector located on the rear of the unit. ELECTRICAL POWER There is one power connection for the Model 5000A225A.
  • Page 52 Model 5000A225A Rev B...
  • Page 53: Theory Of Operation

    3. THEORY OF OPERATION GENERAL The Model 5000A225A amplifier can be a relatively simple unit to understand. The amplifier chain is a straightforward design, with a few control elements in the lineup. The unit’s power supply, control and fault detection circuits can be easily understood by anyone with a minimal understanding of analog and digital circuitry.
  • Page 54: A10 100W 400Mhz Module Assembly (Schematic 10039874)

    Model 5000A225A 3.2.3 A10 100W 400MHz Module Assembly (Schematic 10039874) The 100W 400MHz Module Assembly consists of RF matching circuits, an RF transistor (Q1), a bias control circuit, and a fault detection circuit. The RF input is fed to a 4:1 balun transformer composed of T1 and T2. The output signal of the 4:1 transformer is connected to the gates of Q1.
  • Page 55: A8 Voltage Regulator Board

    Model 5000A225A 3.2.6 A8 Voltage Regulator Board The A8 Voltage Regulator Board contains two adjustable positive voltage circuits employing Linear Regulator ICs U4 and U5. U4 accepts a +37 VDC input and outputs the +26.5 VDC Drain Voltage for the A1 preamp stage.
  • Page 56: Output Combiner/Directional Coupler, Detector Assembly

    3.4.1 Fiber-Optic System Control Link The 5000A225A control system uses a fiber-optic communication system to link each of the MPA’s back to the Driver/Controller unit. The Digital Control Panel (DCP) uses this link to send information to the system MPA’s and read fault conditions. Therefore, this link is critical to the operation of the amplifier system.
  • Page 57: Power On/Operate Circuits

    This section describes the functioning of the switches, relays and controls in the AC/DC power distribution system. See Interconnect Diagram, 5000A225A, Schematic 10044006 for low voltage (200-240 VAC) or 10044007 for high voltage (380-415 VAC) and Interconnect, Driver Amp 10044184.
  • Page 58: Automatic Level Control Circuits

    Allows the user the means to level at a set output power level. FAULT DETECTION CIRCUITS This section describes the function and theory of the Model 5000A225A’s fault detection circuits. The driver power module A10 is monitored for over-temp fault using a thermal switch. In the event of an over-temp, the PS2 power supply will be shut down so no DC is supplied to the A10 module.
  • Page 59: Current Faults

    PS1. 3.5.5 Interlocks The Model 5000A225A Driver has two interlocks that are wired to the rear panel Safety Interlock connector. The interlocks are separate circuits. Both interlocks require normally closed external circuits to allow the amplifier to function. 3.5.5.1...
  • Page 60: Ac Interlock

    RESET remote command from the user’s computer (when the Keylock Switch is set to REMOTE). Either of these conditions causes the 5000A225A’s DCU to return to normal conditions. Forcing the user to reassert the Operate command (RF On) after a fault or interlock condition is a safety feature that prevents an unexpected burst of RF when the fault or interlock condition has been restored.
  • Page 61: Troubleshooting And Repair

    4. TROUBLESHOOTING AND REPAIR 4.1. GENERAL Because it is a relatively simple instrument, the Model 5000A225A should require very little maintenance. It is built with solid state devices and printed wiring boards (PWBs) that should ensure long, trouble-free life. Should trouble occur, special care must be taken when servicing the unit to avoid damaging the solid state devices and PWBs.
  • Page 62: Power Supply Faults

    Model 5000A225A 4.3.2 Power Supply Faults Indication – PS2 The main power supply has failed to produce DC voltage within the design range of the power supply. The main power supply PS2 is located on the bottom shelf of the MPA.
  • Page 63: Fault Troubleshooting Guide

    Model 5000A225A 4.3.6 Fault Troubleshooting Guide Driver Fault Type of Fault Possible Reasons Therm driver Thermal Driver fan blocked or clogged, PS2 has no output UC driver A10 Under Current Driver FET is damaged and drawing no current, Gate voltage is being pulled down Driver FET had been over driven.
  • Page 64: Diagnosing And Replacing Amplifier Modules

    Model 5000A225A DIAGNOSING AND REPLACING AMPLIFIER MODULES 4.4.1 Locating Modules See Figure 4-1. Figure 4-1. 5000A225A MPA/Module Locations (Rear View) Rev B...
  • Page 65: Module Replacement

    Model 5000A225A 4.4.2 Module Replacement If, after troubleshooting, it has been determined that one of the Liquid-cooled modules has failed, the following procedure should be followed if a spare module for the unit is available. CAUTION: Power to the unit must be turned off before performing any repair work;...
  • Page 66 Model 5000A225A Rev B...
  • Page 67: Appendix A. Installing Software Upgrades

    Driver Box. 6. When the utility confirms that the 5000A225A is in the correct state, it will prompt for the model specific firmware file which was unzipped in the steps above. Select this file and allow the utility to complete the update process.
  • Page 68: I/O - Input Output Board Assembly Firmware (X1)

    4. Run the AR Firmware Upgrade Utility and follow the instructions it provides. When asked to power on the device, only power on the Driver Box. 5. Once the utility successfully connects to the 5000A225A Driver Box, click the Update button for the I/O firmware.
  • Page 69: Breakout - Fiber-Optic Connected Switch Breakout Board (Sbb) Assembly Firmware In Mpas (X4)

    Do not change the names of the folder or files that are unzipped. 4. Run the AR Firmware Upgrade Utility and follow the instructions it provides. When asked to power on the device, only power on the Driver Box.
  • Page 70: Assemblies That Require Physical Replacement To Update Firmware

    Model 5000A225A 8. The utility will prompt for the ALC firmware file which was unzipped in the steps above. Select this file and allow the utility to complete the update process. A.7 ASSEMBLIES THAT REQUIRE PHYSICAL REPLACEMENT TO UPDATE FIRMWARE The following assemblies can only have their firmware updated by swapping physical assemblies: •...
  • Page 71 These modules are not field-repairable and should never be opened outside of AR’s Microelectronics Lab. The modules in these product lines have a security label on two sides of the modules between the housing and lid/cover. If the security label is removed and or cut, the warranty of the module will be voided.

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10044005

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