User's Manual

Date Code 20091009 SEL-3031 Instruction Manual
Performance Monitoring, Testing, and Troubleshooting
Self-Test
5.5
the site or in the path of the current radio link. It is important to take CBAD and RBAD
and use them in the relay to trigger an alarm condition through an output contact or
have the SCADA system detect the alarm. Line-of-site radio paths can experience
adverse conditions over time and it is critical to constantly monitor the radio
performance to keep the availability numbers as high as possible.
Self-Test
All self-tests are described in Table 5.1. If all diagnostic tests are passed, the ENABLED
LED is on, the ALARM LED is off, and the contact output is open. If the device is
disabled, the ENABLED LED is off, the ALARM LED is illuminated, and the contact output
is closed.
Ta b le 5.1 D ev i c e S e lf-Tests
Self-Test Description
SER
Message
Alarm
LED
Alarm
Contact
FPGA Version
Mismatch
Fails if FPGA registers do not match
expected.
Yes On Closed
Data RAM Performs read/write tests on each
section of Data RAM.
Yes On Closed
Code RAM Performs a comparison test against
code flash.
Yes On Closed
Code Flash Checksum is continually computed
on code base.
No On Closed
Flash (Settings) Performs a validity test every hour
on the settings.
Yes On Closed
Processor
Exception
Indicates processor failure. Yes On Closed
RTC Indicates clock chip static RAM fail-
ures.
Yes On Closed