Nautel V10 User's Installation And Operation Manual

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Nautel V10 User's Installation And Operation Manual Manual pdf 100 page image

Page 4-10 V10/V7.5/V5/V3.5 Installation and Operation ManualIssue 3.5 Section 4 Testing and Adjustment(b) The RF output, as displayed by the RFKILOWATTS meter and GUI, will berated power. The system diagram’sExternal Alarm lamp will be off.(c) The remote interface PWB’s INTLKOPEN ALARM terminal (TB1-5) will bea non-alarm condition (open-collector).(d) Simulate an external interlock fault bytemporarily removing the jumperinstalled between the remote interfacePWB's XMTR INTLK terminals (TB1-1and TB1-2).(e) The RF output, as displayed by the RFKILOWATTS meter and GUI, willimmediately go to 0 W. The systemdiagram’s External Alarm lamp willturn on.(f) The remote interface PWB’s INTLKOPEN ALARM terminal (TB1-5) will bean alarm condition (current-sink-to-ground).(g) Restore the integrity of the externalinterlock circuit by reinstalling thejumper between the remote interfacePWB's XMTR INTLK terminals (TB1-1and TB1-2).(h) The RF output, as displayed by the RFKILOWATTS meter and GUI, willreturn to rated power. The systemdiagram - External Alarm lamp willturn off.(i) The remote interface PWB’s INTLKOPEN ALARM terminal (TB1-5) shallreturn to a non-alarm condition (open-collector).4.3.6.2 Exciter Auto Changeover Check(if applicable)If the transmitter is configured for dualexciter operation, verify an exciter autochangeover is initiated when a main(active) exciter fault occurs as follows:(a) Verify there are no existing alarms onthe control display panel and that thetransmitter is operating at rated power.(b) From the GUI’s changeover menu (see3.6.13), set the Exciter Standbyoption to Y (yes).(c) Unplug the ac cord at the rear ofexciter A (A14). A changeover toexciter B will occur. The exciter alarmwill turn on momentarily (until thereserve exciter’s output power exceedsthe IPA Input Low threshold), thesystem diagram Changeover alarmwill turn on and the alarm will be notedon the GUI. The remote interfacePWB’s CHGOV (changeover) ALARM(TB1-8) and IPA/RF Fail Alarm (J6-3)outputs should be an alarm condition(current-sink-to-ground). The remoteinterface PWB’s EXCTR STATUSoutput (TB1-15) will be a current-sink-to-ground.(d) Reconnect the ac line cord to exciter A.In the GUI’s changeover menu, setexciter B as the main exciter (see3.6.13). The alarms should clear.(e) Unplug the ac cord at the rear ofexciter B (A15). An exciter changeoverto exciter A will occur. The exciteralarm will turn on momentarily, theChangeover alarm on the systemdiagram will turn on, and the exciterchangeover alarm will be noted on theGUI. The remote interface PWB’sCHGOV ALARM (TB1-8) and IPA/RFFail Alarm (J6-3) outputs should be analarm condition (current-sink-to-ground). The remote interface PWB’sEXCTR STATUS output (TB1-15) willbe an open-collector.(f) Reconnect the ac line cord to exciter B.In the GUI’s changeover menu, setexciter A as the main exciter (see3.6.13). The alarms should clear.