Xicom TWTA Operations And Maintenance, Instructions Of Shipment, Unpacking And Installation Download Page 18 | Manualshive

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Unpacking and Installation, TWTA Octagon CPU

MNC-0300-003

18 of 22

Revision N

Figure 12, Typical RS-485 2-Wire Duplex Implementation

Figure 13, Typical RS-485 4-Wire Full Duplex Implementation

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Summary of Contents for TWTA

Page 1: ...2002 A L Crozier Jr F 10980 Update Figure 5 to show proper pinouts 04 22 2003 A L Crozier Jr G 11340 Add Waveguide Torque Table 08 13 2003 A L Crozier Jr H 11883 Correct pinouts on MS Power Plug Add...

Page 2: ...tallation 9 Power and Interface Interconnections 10 Prime Power Connections 10 External Interlock Prime power enable 11 Monitor and Control Connector 12 Monitor and Control Pinouts 12 Redundancy Inter...

Page 3: ...for Standard Unit 10 Figure 4 Connector J2 Pinout for EIK Unit 11 Figure 5 MS Connector J2 Pinout 11 Figure 6 Prime Power Enable Circuit 11 Figure 7 M C Connector Pin Layout 12 Figure 8 Waveguide Swit...

Page 4: ...g and Installation TWTA Octagon CPU List of Tables Paragraph Title Page Number Table 1 Recommended Waveguide Flange Torque 9 Table 2 Monitor and Control Connector Pinouts 13 Table 3 Redundancy Interfa...

Page 5: ...ved Save all data sheets They will be useful during any maintenance actions Save the shipping container and packing material and use it if you need to reship the unit Inspection Inspect all items for...

Page 6: ...that the proper matching waveguide flange is used to connect the amplifier input and output to the RF load Refer to Figure 1 Typical 4 Screw Mounting Flange Tightening Sequence and Figure 2 Typical 8...

Page 7: ...n should be utilized to eliminate potential strain on the waveguide connection 3 Insert any necessary gaskets and windows between the two flanges Note The waveguide that is connected to the HPAs shoul...

Page 8: ...artially tighten that screw Move clockwise to the next screw to be tightened 3 and partially tighten that screw Move to the screw diagonally opposite screw 3 and partially tighten that screw 4 If requ...

Page 9: ...s recommended to allow the heated exhaust air to clear the power amplifier air inlet If the unit is installed in a closed cabinet or in a configuration that would tend to recirculate the exhaust air p...

Page 10: ...ime Power Connections The AC Prime Power receptacle is located on the amplifier front panel Nominal line voltage is 100 to 260 VAC 180 to 260 VAC on some high power units 47 63 Hz single phase The amp...

Page 11: ...e 5 MS Connector J2 Pinout Refer to the Outline Drawing in the appendix titled Mechanical Drawings External Interlock Prime power enable To enable heater voltage high voltage and monitor and control f...

Page 12: ...COM1 RS 232 Serial Port COM2 RS 422 RS 485 Serial Port Two sets of Form C Relay contacts for Summary Fault indication External Interlock RF Inhibit Control 24 VDC 100 mA maximum 15 VDC for monitoring...

Page 13: ...smit N RS 422 485 Receive P RS 422 485 Receive R RS 422 485 GND S Summary Fault A Normally Open Contact T Summary Fault A Normally Closed Contact U Summary Fault A Common V Summary Fault B Normally Op...

Page 14: ...nal Function A Sum Fault Ind IN When in backup mode opens when other amp in redundant system faults Contact closure only Unit switches online B Sum Fault Ind OUT When online opens during fault Backup...

Page 15: ...Inhibit command is factory set to disable high voltage to the tube Figure 9 RF Inhibit with Internal Source shows the RF Inhibit circuit using the TWTA internal 15 VDC and ground RF will be inhibited...

Page 16: ...and external references can result in damage to the equipment if there is a difference in ground potential between the controller and the TWTA If you need to invert the RF Inhibit logic RF inhibited...

Page 17: ...ier will respond to commands from either interface The last command received has precedence COM1 is an RS 232 only serial interface No switch settings are required for COM1 Table 2 Monitor and Control...

Page 18: ...Unpacking and Installation TWTA Octagon CPU MNC 0300 003 18 of 22 Revision N Figure 12 Typical RS 485 2 Wire Duplex Implementation Figure 13 Typical RS 485 4 Wire Full Duplex Implementation...

Page 19: ...c The return for this voltage is either Pin a or Pin Z J1 f A 15 VDC voltage is supplied that can deliver up to 10 mA This supply voltage is available on Pin f for monitor purposes The return for thi...

Page 20: ...t power ON or OFF High Voltage used to turn the High Voltage Power Supply ON and OFF or to Reset the High Voltage Power Supply Local Remote Override used to switch the amplifier from Local Mode Manual...

Page 21: ...ion will exist for approximately three minutes Wait for the LED to stop blinking before proceeding to Step 6 6 When the amplifier has reached the end of Heater Time Delay the LED will change to solid...

Page 22: ...Unpacking and Installation TWTA Octagon CPU MNC 0300 003 22 of 22 Revision N...

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