Nautel NX15, Troubleshooting Manual

Page: 46 / 274

NX25/NX15 Troubleshooting Manual Responding to alarms
Page 1-38 Issue 5.0 2016-05-06
Off Air Summary
(Off Air Summary) This summary alarm is triggered if any of the following off-air related alarms
occur:
Controller alarms:
Arc Shutback
External PDM Inhibit Interlock Open
Audio Loss Shutdown Fast SWR Shutback PDM Latch
Combiner Interlock Open
Exciter alarms:
FPGA Test Failed
RF Probes Uncalibrated Transmitter Type Not Set
Over-Current Shutback SWR Shutback Unsigned DSP Image
PLL Unlocked Transmitter Gain Too Low Unsigned FPGA Image
Rack alarms:
Arc Detector 1 High B+ Shutback Low B+ Shutdown
Output Network Fault
Summary
(O/P Network
Summary) This summary alarm is triggered if any of the following output network related
alarms occur:
Controller alarms:
Arc Shutback
Fast SWR Shutback
Exciter alarms:
Cutback
Over-Current Shutback SWR Shutback
High Forward Foldback SWR Foldback
Rack alarms:
Arc Detector 1
Power Module Fault
Summary
(PM Summary) This summary alarm is triggered if any of the following power module related
alarms occur:
Module alarms:
EEPROM Failure
High Temperature No Controller Comms
External Disable Active Invalid Thermistor Sample Overmodulation
Front Panel Inhibit Low B+ Voltage Residual PA Voltage
High B+ Voltage Low Fan 1/2 Speed RF Drive Fault
High DC Current Low PA Voltage +15V Fail
High PA Voltage Low RF Drive
High RF Drive
Rack alarms:
PM 1-10 Not Responding
Table 1.2: Troubleshooting Summary Alarms
Summary Alarm
Name, AUI (front
panel UI)
Description and Triggering Alarms