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2-30

888-2523-001

7/26/05

WARNING: Disconnect primary power prior to servicing.

Section 2 Installation / Initial Turn-On

ATLAS Analogue

2.13 Initial Turn-On

Read and understand the entire initial turn-on procedure before starting. Detailed use of
all GUI screens is given in Section 3 Operation.

Shut off the front panel breaker.

Apply 3 phase primary power to the transmitter. Be ready to quickly disconnect the
power if necessary.

Engage the primary AC breaker switch, CB9 on the front breaker panel of each
transmitter cabinet.

Turn on the AC mains switch on the rear of the exciter(s). This should apply power
to the exciter(s). If the optional exciter UPS (Un-interruptible Power Supply) is
installed it should be active at this time.

Turn on the LVPS1 and LVPS2 (Low Voltage Power Supply) circuit breakers,
CB11 and CB12. This will activate LVPS1 and LVPS2 and power up the transmitter
control system. The GUI display should show the Home (default) screen shown in
Figure 2-4. Try using the touchscreen buttons on the right side of the GUI display (not
the hardware buttons to the right of the GUI). If they do not seem to be working or only
work when pressed outside the button graphic, then go to "5.6.5 Touch Screen
Calibration" on page 5-19 before continuing. If the buttons are working then proceed
on to the next step.

Figure 2-4 Home Page

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Содержание ATLAS ANALOGUE

Страница 1: ...ATLAS ANALOGUE Transmitter TECHNICAL MANUAL 888 2523 001 Atlas Analogue Transmitter Printed July 2005 Rev B1 T M No 888 2523 001 Copyright Harris Corporation 2004 All rights reserved...

Страница 2: ...Locate and retain all PACKING CHECK LISTs Use the PACKING CHECK LIST to help locate and identify any components or assemblies which are removed for shipping and must be reinstalled Also remove any sh...

Страница 3: ...WARNING Disconnect primary power prior to servicing Manual Revision History ATLAS Analogue Transmitter Manual REV DATE ECN Pages Affected Preliminary 2004jan15 Creation Preliminary 2004may03 Final Rev...

Страница 4: ...iv 888 2523 001 7 26 05 WARNING Disconnect primary power prior to servicing...

Страница 5: ...ATIONS column 1 gives the reference designators for the item i e C001 R102 etc that corresponds to the number found in the schematics C001 in a bill of material is equiva lent to C1 on the schematic o...

Страница 6: ...vi 888 2523 001 7 26 05 WARNING Disconnect primary power prior to servicing...

Страница 7: ...fire protection standards must be observed The following National Fire Protection Association NFPA standards are recommended as reference Automatic Fire Detectors No 72E Installation Maintenance and U...

Страница 8: ...viii 888 2523 001 7 26 05 WARNING Disconnect primary power prior to servicing...

Страница 9: ...rtation to a hospital as quickly as possible e If arms or legs are affected keep them elevated NOTE If medical help will not be available within an hour and the victim is conscious and not vomiting gi...

Страница 10: ...x 888 2523 001 7 26 05 WARNING Disconnect primary power prior to servicing...

Страница 11: ...2 19 Initial Cooling System Turn ON 2 20 Initial System Leak Tests 2 24 Initial System Cleaning 2 24 Initial System Flushing 2 25 Final Cooling System Fill 2 26 Install PA Modules 2 28 Initial Turn O...

Страница 12: ...4 14 RF Controller Board 4 14 RF Detectors 4 15 Reject Load RF Detector Relative 4 16 Reject Load Protection 4 16 PA Module Phase Alignment 4 17 Normal Mode Life Support Mode 4 18 Backplane Interface...

Страница 13: ...on Carrier 5 9 Calibrate Forward Cabinet Vision Carrier 5 11 Calibrate Forward Total Power Sound Carrier 5 11 Calibrate Forward Cabinet Sound Carrier 5 12 Reflected Calibrate 5 12 Calibrate Reflected...

Страница 14: ...Table of Contents continued 4...

Страница 15: ...installation procedures for the transmitter cooling and RF systems and basic remote control con nections Section 3 Operation provides operation and navigation information for the Graphi cal User Inter...

Страница 16: ...different models and system specifications Figure 1 1 DVA 10000 Front Rear Views RFU Exciter A 8 PA Modules DVA10000 Shown Power Supply Control Panel GUI Exciter B Liquid cooled 5kW Load Mid Deck PA...

Страница 17: ...diagrams showing the basic signal flow and configuration for a DVA10000 Atlas Analogue Transmitter Model Figure 1 2 shows the 10kW single cabinet system with up to 8 PA modules Note that a driver is...

Страница 18: ...ms and reports that Harm onic Bandpass Filters Exciter A Exciter B RFU RF Combiner RFMonitor Reject Loads PA1 PA2 PA3 PA4 PA5 PA6 PA7 PA8 Ext I O Board M ain Controller LifeSupport M OV Board LVPS LVP...

Страница 19: ...nsible for control and monitoring of the power supplies and distribution of the low voltage Also responsible for monitor ing the cooling system including temperature flow and leaks Reports directly to...

Страница 20: ...se of the CAN bus for communication between the various Micro Modules in the transmitter also allows for easy updating of the software used in each transmitter sub system via a serial port connection...

Страница 21: ...se and gain adjustments to mini mize module combiner reject power Also provides for cabinet phasing for the 2 cabinet transmitters to minimize cabinet combiner reject power c Pre driver Pallet Provide...

Страница 22: ...as On Off Restart and RF Mute Figure 1 4 PA Module Block Diagram AB PHASE GAIN CONTROL BOARD Front End AB AB AB AB AB AB A FWD TEMP Pin 260V 3 AC BIAS RF IN TO MAIN CONTROLLER SWITCHED 28V ON OFF MODU...

Страница 23: ...s shown in Figure 1 6 A simplified diagram of the liquid cooling system inside the transmitter cabinet is shown in Figure 1 7 The cooling system basically consists of a Cooling System Control Panel b...

Страница 24: ...matic pump switching in the case of a failure Placing the control panel in Local mode allows manual switching of the pumps using the pump select buttons on the cooling control panel The lower half of...

Страница 25: ...vated but temperature sensors determine when the fans will actually start The first fan is factory set to turn on when the coolant temperature reaches 32oC with the second one turning on at 38o C thes...

Страница 26: ...cond hot standby exciter and drive chain switcher is available as an option The exciter is controlled by the transmitter using an internal RS 485 serial connection Configuration editing diagnostics an...

Страница 27: ...abinet Output DVA10000 3 1 8 EIA Flanged Cabinet Output 3 1 8 EIA Flanged Cabinet Combiner Output 3 1 8 EIA Flanged Cabinet Output 3 1 8 EIA Flanged Cabinet Combiner Output 4 1 16 EIA Flanged RF Load...

Страница 28: ...2 or better Luminance Non linearity Measured with a 5 step staircase signal Test Signal 3 CCIR Rec 421 3 10 System CCIR M NTSC Relative to FCC standard Curve nS 0 2 2 1 Mhz 30 nS 3 58 Mhz 30 nS 4 18...

Страница 29: ...Dual Sound Carrier Levels dB Relative to peak visual 13 20 FM Signal to Noise Ratio Unweighted dB 60 Exciter spec 60 Target 58 Weighted dB 64 Exciter spec 60 Channel Cross talk Attenuation dB 40 15kHz...

Страница 30: ...ary Liquid Propylene or Ethylene Glycol Water 50 50 Acoustic Noise dBA Measured 1m from front of cabinet and 1 5m up from floor Does not include cooling pump module and heat exchanger 65 Residual Heat...

Страница 31: ...Documentation The following is a list of documentation that ships with the transmitter Find and save all documentation The top level Document Package numbers for each transmitter model are shown below...

Страница 32: ...gram Shows overall AC wiring and has information on proper wire fuse and breaker sizes as well as location of disconnects c RF Equipment Layout Shows a typical placement of the transmitter RF componen...

Страница 33: ...1 843 5575 132 RF Equipment Layout 843 5575 161 843 5575 158 843 5575 159 Electrical Installation Diagram 843 5575 152 843 5575 155 Wiring Diagram Main Cabinet Wiring Diagram Additional PA Cabinet Int...

Страница 34: ...be considered the most accurate All connections listed in this sec tion should be verified with the schematics before initial turn on 2 4 Transmitter Cabinet Placement The transmitter cabinet should...

Страница 35: ...edure 2 5 Cooling System Installation The major components of the Atlas cooling system include the pump module cooling control panel and heat exchanger The following procedures will rely heavily on th...

Страница 36: ...NECTED TO THE EQUIPMENT Set the pump module and heat exchanger in place The pump module may be installed inside the building or outside near the heat exchanger It should be located in a manner which w...

Страница 37: ...panel should be mounted to a solid surface or structure such as the Pump Module housing so it is able to withstand the minor vibrations of contactor operation without coming loose Connect conduit and...

Страница 38: ...p module Follow the AC Power Flow Diagrams and Electrical Installation Diagrams mentioned at the beginning of this section Connect the AC wiring between the cooling control panel and the heat exchange...

Страница 39: ...Drawing These low level signals connect from terminals in the heat exchanger to the cooling control panel Table 2 4 is a connection reference chart X2 15 X1 15 X2 16 X1 16 GND These connections should...

Страница 40: ...stem is tested and operational Table 2 4 Heat Exchanger Control and Status Connections Cooling Control Panel Heat Exchanger X2 25 X1 9 X2 26 X1 10 X2 27 X1 11 X2 28 X1 12 X2 29 X1 20 3rd Fan Only X2 3...

Страница 41: ...rol panel and the pump module and heat exchanger Follow the AC Power Flow Diagrams and Electrical Installation Diagrams mentioned at the beginning of this section All AC connections are connected to t...

Страница 42: ...he Electrical Installation Drawing These low level signals connect from terminals X1 8 through X1 15 in the heat exchanger to X2 13 through X2 20 in the cooling control panel Table 2 6 is a connection...

Страница 43: ...tional Table 2 6 Heat Exchanger Control and Status Connections Cooling Control Panel Heat Exchanger X2 13 X1 8 X2 14 X1 9 X2 15 X1 10 X2 16 X1 11 X2 17 2 conductors X1 13 2 conductors X2 18 2 conducto...

Страница 44: ...g Connections J12 J18 Connect the test load flow switch to J18 9 and J18 10 on the External I O board in the transmitter This will mute the transmitter RF output if there is no coolant flow through th...

Страница 45: ...should be connected to J18 11 and J18 12 This open interlock contact will mute the transmitter RF output if the test load temperature threshold is exceeded while the transmitter is operating into the...

Страница 46: ...ed and connects to E2 which is shown in Figure 2 2 on page 2 17 The Atlas Analogue transmitters are 3 phase 208 220 240Vac or 3 phase 380 400 415Vac at 50 60Hz delta or wye If voltage variations in ex...

Страница 47: ...ne voltage is correct for the installed MOV board Measure the primary AC line voltage from phase to phase and write it in the blank below The transmitter was setup in the factory with a 208 220 240 or...

Страница 48: ...irectional couplers at the system output after the filter These samples connect to a small I O panel with N style connectors mounted to the ceiling of the cabinet J1 is for Total Forward and J2 is for...

Страница 49: ...wing shows that Interlock 1 J18 1 to J18 2 is used by the 3 Port Patch Panel Panel or possibly a motorized switch The other three are to be used at the customers discretion The External Interlock circ...

Страница 50: ...pendix B Cooling System Help section Verify trip levels for the Pump Module pumps and Heat Exchanger fans inside the Cooling Control Panel If necessary rotate the contactor trip threshold to match the...

Страница 51: ...Local and Remote The selection is made on the Cooling Control Panel In the Remote mode the pumps will not start until they are commanded to do so by the transmitter The local mode can be used for sta...

Страница 52: ...ll up upon initial pump turn on The reservoir tank is equipped with a level switch which will shut the pump off if a low water level occurs CAUTION DO NOT TURN ON THE PUMP VIA THE PUMP ISOLATOR SWITCH...

Страница 53: ...N the AC mains Isolator switches at the Heat Exchanger Verify correct Heat Exchanger fan rotation LARGE Cooling Control Panel Press the Exchanger Fan Test ON button to start all fans in heat exchanger...

Страница 54: ...COL WATER MIXTURE HAS FILLED THE ENTIRE SYSTEM LATER IN THE INSTALLATION PROCESS Check immediately for any leaks at the following cooling system points Transmitter inlet and outlet pipe connections Pu...

Страница 55: ...esidue left from the cleaning of the system The flushing can be accomplished by alternately filling running and draining the system two to four or more if needed times using water NOTE The length of f...

Страница 56: ...ernate pumps A and B Check and fill pump module tank with equal amounts of coolant and water as needed Repeat above steps until coolant level has stablized at the Normal Level indication in the site g...

Страница 57: ...g factor needed Then multiply total of all line lengths by factor to derive tubing volume Add this volume to the corresponding volume given in Table 2 8 to determine approximate Total System Coolant C...

Страница 58: ...mitter cabinet Be sure to position the module so the hose connections are near the bottom NOTE The PA Modules should be placed into the same slot in which they were tested at the factory Each module h...

Страница 59: ...ONNECT THE COOLANT HOSES TO THE MODULE AND THEN OPEN THE VALVES COULD RESULT IN A POSSIBLE MODULE FAILURE SHOULD POWER BE APPLIED WARNING THE ATLAS PA MODULES ARE DESIGNED TO HANDLE VERY HIGH TEMPERA...

Страница 60: ...of the exciter s This should apply power to the exciter s If the optional exciter UPS Un interruptible Power Supply is installed it should be active at this time Turn on the LVPS1 and LVPS2 Low Volta...

Страница 61: ...age 3 23 NOTE A COMMON FAULT IS A 3 PHASE SEQUENCE FAULT INDICATING THE 3 PHASES HAVE BEEN CONNECTED IN THE WRONG SEQUENCE IF THIS IS PRESENT REMOVE ALL PRIMARY POWER TO THE TRANS MITTER AND SWITCH AN...

Страница 62: ...ERS The first line shows the transmitter flow rate Adjust the Flow Rate if necessary Adjust the inlet valve for the transmitter until the flow rate indicated in the GUI matches the nominal flow rate o...

Страница 63: ...T TO OPEN FAULT OFF TRANSMITTER IF ADEQUATE COOLANT FLOW IS NOT PROVIDED TO THE LOAD Check the Load interlock Once the flow rate is correct press OUPUT to go to the RF Output screen This screen displa...

Страница 64: ...th either pump active Press SYSTEM then SYSTEM COOLING This screen is shown in Figure 3 25 on page 3 27 Select manual pump switching Button should display MANUAL ENABLED Press pump select button for P...

Страница 65: ...Initial Turn ON CAUTION THE TRANSMITTER SHOULD BE INITIALLY POWERED INTO THE TEST LOAD Check and Set the ALC Automatic Level Control Press POWER AMP then PA METERS The ALC number that controls the po...

Страница 66: ...ive of a bad RF connection to the test load Check PA Module and multi cabinet Phasing See 5 4 PA Module Phasing on page 5 6 for steps to observe the below screen If any of the PA Module or cabinet rej...

Страница 67: ...nds NOTE This procedure should be initially be done every 2 weeks for the first 2 months of operation Then it should be done once a month for the next 4 months after that and then once every 6 months...

Страница 68: ...remote control units can interface at the External I O Board in the rear of the cabinet J13 through J17 are for remote Control Status and Analogue readings The connectors are organized as follows J13...

Страница 69: ...WER Power Pulsed LOW J13 6 GND GROUND J13 7 GND GROUND J13 8 INPUT 5 Remote Drive Chain A B Select Pulsed LOW to toggle J13 9 INPUT 6 Remote RF Mute ON L RF Muted H RF NOT Muted J13 10 INPUT 7 Remote...

Страница 70: ...us Output Status Type and Polarity J16 1 GNDB Isolated Ground J16 2 5VDC ISOLATED Output Install jumper to J16 11 to use this internal supply for status pull ups Otherwise an external supply will have...

Страница 71: ...ult OFF H TX OK J15 5 OUTPUT 11 Drive Chain Fault L FAULT H OK J15 6 OUTPUT 12 Cooling Fault L FAULT H OK J15 7 OUTPUT 13 Summary Fault L FAULT H OK J15 8 OUTPUT 14 Transmitter OFF and not Faulted L T...

Страница 72: ...Power Metering Connection Schematic Label Metered Parameter J17 1 GND Ground J17 2 VOUTA Total Forward Visual Power after filter J17 3 VOUTB Total Reflected Power after filter J17 4 VOUTC Forward Visu...

Страница 73: ...7 26 05 888 2523 001 2 43 WARNING Disconnect primary power prior to servicing Section 2 Installation Initial Turn On ATLAS Analogue...

Страница 74: ...2 44 888 2523 001 7 26 05 WARNING Disconnect primary power prior to servicing Section 2 Installation Initial Turn On ATLAS Analogue...

Страница 75: ...exciter is covered in a two separate manuals which came with the transmitter 3 2 Transmitter Control Panel The front panel user interface is a 1 4 VGA LCD touchscreen display This touchscreen display...

Страница 76: ...ch are part of the front panel overlay Located next to each button is a Status LED which illuminates green under normal no fault conditions These buttons provide quick access to each of the 5 main tra...

Страница 77: ...he most part all navigation through the GUI screens is done via the touchscreen and softkeys software buttons The exceptions are the 5 hardware buttons mentioned above The touchscreen display is also...

Страница 78: ...ed by an RF related fault If underlying fault clears the mute condition will be lifted and the transmitter returned to normal operating mode If the mute continues the underlying fault will need to be...

Страница 79: ...System Standard Figure 3 3 DVA 30000 Home Screen It also has the global status and operation information at the top of the screen which shows the transmitter status and if there are any faults presen...

Страница 80: ...isplay These can also act as status indicators and turn red if a fault condition is detected There is a navigation button shown to the right to allow access to information specific to the PA cabinet P...

Страница 81: ...ing for each exciter output and allows the operator to select AUTO or MANUAL switching mode for the drive chain when the optional dual drive system is installed Specifically it includes a The operatio...

Страница 82: ...on where an automatic switch to the alternate drive chain is not desired 2 Drive Chain A B This is the manual drive chain switch To use this button place the Auto Manual button to Manual then press th...

Страница 83: ...described in 5 5 3 RFU Calibration on page 5 14 and is to be performed only by qualified service personnel if necessary Figure 3 6 RFU Setup Screen NOTE Exciter A is always factory installed as the lo...

Страница 84: ...of the screen are for navigation to Module Status screens which have detailed fault status information on each module These buttons are also status indicators with 4 different states a OK The icon is...

Страница 85: ...ically a list of all of the faults monitored in each PA Module An active fault will be highlighted in RED A warning condition will be highlighted in YELLOW The PA Faults screen in Figure 3 8 shows tha...

Страница 86: ...ters button in Figure 3 7 This screen gives detailed PA metering by PA Cabinet A complete set of PA Meter readings is given in the Factory Test Data The Factory Test Data readings are taken at namepla...

Страница 87: ...o it will fault off at 70 C temperature NOTE The PA output powers displayed under the PA Meters heading are not peak sync power but the power at blanking level Peak sync power is obtained by multiply...

Страница 88: ...Figure 3 7 This screen allows individual PA modules to be turned on or off The primary purpose of this screen is to turn off a PA module for removal It will also allow only a single module to be turne...

Страница 89: ...reen 3 6 3 1 PA Module Removal This screen is simply intended as a quick reference of the proper way to remove and install a PA module NOTE The actual mechanical removal procedure is discussed in Sect...

Страница 90: ...re be done during regular broadcast hours This procedure should be initially be done every 2 weeks for the first 2 months of operation Then it should be done once a month for the next 4 months after t...

Страница 91: ...26 05 888 2523 001 3 17 WARNING Disconnect primary power prior to servicing Section 3 Operation ATLAS Analogue ing temperature it may be an indication that the PA Module Alignment needs to be performe...

Страница 92: ...Power Amplifier Cabinet This panel has a button that gives a status indication of OK or Fault along with cabinet Forward and Reflected power before the filter for each cabinet Output Control The contr...

Страница 93: ...r System level such as VSWR Power High foldback etc An active fault will be highlighted in RED A warning condition will be highlighted in YELLOW A detailed explanation of each of these faults is given...

Страница 94: ...igure 3 17 Output Metering Screen DVA30000 Shown 3 7 3 Output Service This screen is accessed from the Output System screen in Figure 3 15 It is an intermediate menu screen which explains the purpose...

Страница 95: ...be accessed by engineering personnel For the proper phasing sequence refer to 5 4 PA Module Phasing on page 5 6 Figure 3 19 PA Reject Service Screen 3 7 3 2 Forward Calibrate See 5 5 1 Forward Calibr...

Страница 96: ...ure 3 40 on page 3 38 This is the overall Power Supply metering screen for both the Low Voltage Power Supply Units or LV PSU and the AC Mains It also allows access to all other Power Supply screens PS...

Страница 97: ...wer supply faults for the AC Mains and Low Voltage Power Supplies An active fault will be highlighted in RED while a warning condition will be highlighted in YELLOW For a detailed explanation of these...

Страница 98: ...press Control System 1 External Interlocks Can read Open or Closed 2 Communications Can read OK or Fault This could be a problem with any of the serial communication links inside the transmitter b Co...

Страница 99: ...System Main Menu The Control System screen is a fault and status screen for the transmitter communication and control system System control is divided into System Bus These indicators give the status...

Страница 100: ...e 1 Auto Manual This button should always be pressed as shown placing the pump control in auto switch mode In this mode a pump failure will auto matically cause a switch to the redundant pump Manual m...

Страница 101: ...e Cooling Faults buttons on the System Cooling screen An active fault condition is highlighted in RED while a warning condition is highlighted in YELLOW For more information on these faults refer to S...

Страница 102: ...em Cooling screen It reads out Coolant flow Coolant Inlet and Outlet temperature and Cabinet air temperature Units given are typical for a DVA10000 Figure 3 27 Cooling Meters Screen 3 9 2 4 Cooling Se...

Страница 103: ...will be highlighted and cannot be reset All other faults will be cleared when the RESET button is pressed Use the NEXT and PREVious buttons to view the entire list A complete listing of all faults whi...

Страница 104: ...stem Service This screen is accessed by pressing the System Service button in Figure 3 23 on page 3 24 This screen simply provides information concerning the use of the sub menus accessed from this po...

Страница 105: ...to gray out portions of the GUI screens which are not used by some models Nom Power Output This is typically the nominal licensed power after all system filters and used for a couple of things It is...

Страница 106: ...orting and for the fault log Time This screen allows the user to set the Time which will be used for reporting and for the fault log LCD Contrast For adjustment of the contrast of the GUI LCD display...

Страница 107: ...If you are not able to get to the screen open the control panel and press and hold the Remote Enable and Disable buttons at the same time and momentarily press the reset button on the Main Controller...

Страница 108: ...er prior to servicing Section 3 Operation ATLAS Analogue NOTE The procedure can be aborted by pressing any of the 5 hardware Quick keys on the control panel Figure 3 33 Touchscreen Calibration Screens...

Страница 109: ...dule controllers This information should be known before calling for technical support Figure 3 35 Software Revisions Screen 3 9 4 2 1 Hardware Revisions This screen shows the hardware revisions for a...

Страница 110: ...l when learning to navigate The shaded block at the top of each menu tree represents the Main Menu which is accessed using the Quick navigation hardware button on the Control Panel or one of the 5 sof...

Страница 111: ...S Analogue Figure 3 37 Drive Chain Menu Structure Figure 3 38 Power Amp Menu Structure DRIVE CHAIN Drive Faults Drive Meters Drive Service Exciter Status Main Menu RFU Setup POWER AMP PA Faults PA Met...

Страница 112: ...or to servicing Section 3 Operation ATLAS Analogue Figure 3 39 Output Menu Structure Figure 3 40 Power Supply Menu Structure OUTPUT Output Faults Output Meters Output Service PA Reject Service REFL CA...

Страница 113: ...Section 3 Operation ATLAS Analogue Figure 3 41 System Menu Structure SYSTEM System Control System Cooling System Log System Service System Setup Software Revision Control Hardware Revision Cooling Fa...

Страница 114: ...3 40 888 2523 001 7 26 05 WARNING Disconnect primary power prior to servicing Section 3 Operation ATLAS Analogue...

Страница 115: ...tem 4 1 1 Active Logic Symbols Each logic signal has an active and inactive state and a unique name within the system To differentiate between active high or active low logic states on the schematics...

Страница 116: ...o use control system It is a microprocessor serial communication based software control system but uses backup Life Support logic circuitry and hard wired control lines allowing the transmitter to be...

Страница 117: ...te rin g S ta tu s R S 2 3 2 R e m o teC o n tro l P u m pC o n tro l B u s toP u m pC o n tro l M o d u le D C E D T E E x c ite rA E x c ite rB O p tio n a l R S 4 8 5 R S 4 8 5 T V S D 6 6 0 C o n...

Страница 118: ...mation over the CAN bus This means that the CPLD will continue to monitor and protect the systems to which it is connected even if the micro module fails However there will be no reporting of informat...

Страница 119: ...serial communications link which is used between the transmitter control boards for transmission of control status fault and metering information The CAN bus is distributed as part of the System Contr...

Страница 120: ...t reporting and status and metering information displayed on the GUI is sent on the CAN bus to the Main Controller and to the External I O board for remote monitoring Transmitter control signals are a...

Страница 121: ...control boards but is driven only by the Main Controller board When the transmitter is already turned ON and the operator presses the ON button again this line will be pulsed low for a minimum of 100m...

Страница 122: ...l The ALC signal is used to control the transmitter power output and is normally sent digitally over the CAN bus This line carries a voltage from the Main Controller to the PA Modules which is an anal...

Страница 123: ...ontrols There are 3 remote control and monitoring options which can all access information gathered by the Main Controller via the External I O Board These options are shown on the left side of Figure...

Страница 124: ...ll be controlled by the analog ALC Automatic Level Control voltage sent over a discrete line on the System Control Cable to all of the PA modules normally the ALC value is sent over the CAN bus to con...

Страница 125: ...ternal I O Board is exactly as its name implies It is the interface between the internal transmitter control system and all external or peripheral devices Input Output or I O ports on the External I O...

Страница 126: ...connection point for up to 6 external interlocks f Pump Module Control Cable connection g External System I O Cable J11 which is the connection point for an N 1 controller as well as Isolation load c...

Страница 127: ...locally or by remote 4 3 6 2 RF Mute Interlock There are 2 more interlock connections on J18 which can be used to apply an RF Mute instead of a Fault OFF condition as discussed above These are J18 9 t...

Страница 128: ...function is to house the exciter changeover switch when required and for exciter power metering The following examples cover the different configurations which are shown on the RFU Wiring Diagram 843...

Страница 129: ...it is basically just responsible for communicating information from the CPLD to the Main Controller 4 4 3 1 RF Detectors There are 2 types of RF detectors used on the RF Controller board Relative Use...

Страница 130: ...n position this would give approximately 3Vdc detected output the actual output voltage is dependent on frequency This 3Vdc level adjusted for frequency is used to protect the reject loads from over d...

Страница 131: ...itter frequency of 500MHz 100mW of RF input 3 4Vdc detected output When the GUI is configured for a transmitter frequency of 500MHz the micro module on the RF Monitor board receives this information T...

Страница 132: ...r To compensate for this each detector has two gain settings on the Phase Align screen Low and High Once the reject power is minimized in the Low gain setting the gain of the detector can be increased...

Страница 133: ...of splitter is broadband covering the entire UHF range 4 4 4 2 Control Distribution The System Control Bus is also distributed to all of the PA Modules from here The control bus includes both dedicat...

Страница 134: ...d parallel control bus to the transmitter Main Controller Any faults in the module will be reported to the Main Controller for diagnostics via the CAN bus A simplified block diagram of the PA module i...

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