Operating Basics
Power-on self test
The power-on se
lf test is run when the Configuration and Monitoring system first
boots up. (See page 18, Configuration and Monitoring system.) The test is run
regardless of wh ether the reboot is caused by cycling power or by other means,
such as a watchdog timeout or by pressing and holding the ENABLE and RESET
keys.
If any failure occurs, it will be reported in the following ways:
An error message is written on the LCD display and is visible for 2 seconds.
The STATUS menu FAULT display will indicate that the self-test has failed
and display the event code. This display will not be erased until instrument
power is cycled.
A similar message, which includes the event code, is entered in the Event Log.
If the user-configurable event reporting methods (SNMP trap, e-mail, GPI
signal, instrument beeper) are enabled to notify in the event of a voltage error,
then a message is sent using the enabled method(s).
Event codes. The self-test event code is a bit-wise value with each fault type
assigned a bit. The following table lists the possible error codes.
Table 12: Self test error codes
Test t
ype
Code
Front panel communications
0(LS
B)
Main board communications 1
Module 1 communications 2
Module 2 communications (if installed)
3
Module 3 communications (if installed)
4
Module 4 communications (if installed)
5
Power Supply combiner communications
6
M
RAM communications
7
RTC communications 8 (MSB)
ECO8000 Series Automatic Changeover Unit User Manual 27
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