DynAmp RCEM, Инструкция по установке, эксплуатации и обслуживанию

Страница: 61 / 78

Installation, Operation and Service Manual RCEM
© 2012 DynAmp, LLC Page 47
43756 G
B.5 SPREADSHEET DESCRIPTION
A customized Excel spreadsheet is provided for interfacing with the Personal Daq/56 from
the laptop computer. The spreadsheet allows the monitoring of the diode currents, and
provides visual indicators of all the alarm conditions. It also allows the RCEM system to be
operated in test mode to assist in troubleshooting problems with the system.
The “Display” worksheet’s general layout is shown in Figure B.1. Figures B.2 through B.4
are other examples of a typical worksheet layout. The following list is a description of the
individual fields on the worksheet:
1.)
UNIT NUMBER: This is the identification number of the rectifier under test.
2.) RECTIFIER CURRENT: The calculated dc current output of the rectifier. (Average
leg total current times the waveform factor)
3.) DIODE: The diode number. There is a maximum of 20 diodes in each rectifier leg.
4.) CURRENT: Indicates diode current in rms amperes.
5.) % DEV: The percent deviation of the diode current from the average leg current.
6.) TOTAL: The sum of the leg diode currents in rms amperes.
7.) AVERAGE: The average of the leg diode currents in rms amperes.
8.) DATE: The date of the last rectifier data acquisition.
9.) TIME: The time of the last rectifier data acquisition.
10.) HI: The percentage (%) above the average of the leg diode currents that will cause
high diode currents to be flagged. The cell containing the high diode current will
change to a red background color.
11.) LO: The percentage (%) below the average of the leg diode currents that will cause
low diode currents to be flagged. The cell containing the low diode current will
change to a blue background color.
12.) WAVEFORM FACTOR: Worksheet cell containing the value used to calculate the
“Rectifier Current”. See Appendix A for the correct waveform factor to use. This
value varies with the ANSI rectifier circuit number.
13.) ANSI RECTIFIER CIRCUIT: Worksheet cell containing the active ANSI Rectifier
Circuit number.
14.) LEVEL: Worksheet cell containing the checkback value of the active test signal
level. “OFF” will be displayed when the “TEST MODE” is not active.
15.) ACQUIRE DATA: Command button used to initiate a rectifier data acquisition. One
data set will be acquired each time the button is actuated. The worksheet will be
updated to the data acquired.
16.) RCEM RESET: Command button used to reset the microcontrollers on the Reset
Sync PC Boards. This will cause the integrator reset pulses to synchronize to the
diode current waveforms.
17.) TEST MODE: Command button used to switch the data source to the internal test
signal generator. Radio buttons selects the test signal level.
18.) SAVE AS: Command button used to save the rectifier data set to a disk file and to
restore the original spreadsheet.