Table 1. Error Reported on CADU Error Screen (cont.)

Table 1. Error Reported on CADU Error Screen (cont.) - TM-1-6625-724-13P_163

Table 1. Error Reported on CADU Error Screen (cont.) - TM-1-6625-724-13P_165

TM-1-6625-724-13P Aviation Vibration Analyzer Manual
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0025 00 TM 1-6625-724-13&P 0025 00-26 Table 1. Error Reported on CADU Error Screen (cont.) Code # Message 16405: ACQ ROM Checksum Error ACTION: (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement The checksum on the DAU acquisition board has returned a fault condition. Power the DAU off and on, and then try to make a measurement. If the failure persists, send unit to TMDE for repair. 16406: Zero Denominator ACTION: (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement 16407: Illegal Tacho Channel ACTION: (1) Retry measurement (2) Verify Setup - Check and Reload aircraft script file An illegal tachometer input channel has been specified in the aircraft setup file. Verify the tachometer channel in the setup file. 16408: Illegal Frequency Option ACTION: (1) Retry measurement (2) Verify Setup – Check and Reload aircraft script file An illegal ASPA frequency range has been specified in the aircraft setup file. Verify the ASPA frequency range in the aircraft setup file. 16409: ADC Error > 12 Bits ACTION. (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement Turn the DAU off and on, and then try to make a measurement. If the failure persists, send unit to TMDE for repair. 16410: Attempt to Read Too Much Data ACTION: (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement 16411: Zero Revs Specified ACTION: (1) Retry measurement (2) Verify Setup - Check and Reload aircraft script file A measurement has been specified with no revolutions. Check the aircraft setup file for the number of revolutions for each acquisition. 16412: No Revs in FFT Block ACTION: (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement 16413: Failed to Read FIFO In Time ACTION: (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement 16414: Tacho Out of Bounds ACTION: (1) Retry measurement (2) Verify Setup - Check and Reload aircraft script file The measured tachometer frequency is higher than the limits specified by the aircraft setup file. This is commonly caused by an aircraft with a double interrupter, when the setup file expects a single interrupter. Verify the following: 1. The interrupter is the proper type and gapped correctly. 2. Rotor frequency is within the required operating range. For optical interrupters, verify the tape is placed correctly. 16415: ACQ Already in Use ACTION: (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement 16416: Driver Buffer Overflow ACTION: (1) Power the DAU off and on (2) Wait 20 seconds, make a measurement

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