4–8 469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 4: INTERFACES
MESSAGE
X key, followed by the MESSAGE T key, to scroll through the messages. For
additional information and a complete list of diagnostic messages, refer to Diagnostic
Messages on page 6–37.
4.1.8 Self-Test Warnings
The 469 relay performs self test diagnostics at initialization (after power up) and
continuously as a background task to ensure the hardware and software is functioning
correctly. Self-test warnings indicate either a minor or major problem. Minor problems are
problems that does not compromise motor protection. Major problems are very serious
problems that compromise all aspects of relay operation. Upon detection of either a minor
or a major problem the relay will:
• De-energize the self-test warning relay
• Light the self-test warning LED
• Flash a diagnostic message periodically on the display screen
Table 4–1: Self-Test Warnings
Message Severity Failure description
Self-Test Warning 1
Replace Immediately
Major
Caused by detection of a corrupted location in the
program memory as determined by a CRC error
check. Any function of the relay is susceptible to
malfunction from this failure.
Self-Test Warning 2
Replace Immediately
Major
Caused by a failure of the analog to digital
converter A/D1. The integrity of system input
measurements is affected by this failure.
Self-Test Warning 3
Replace Immediately
Major
Caused by a failure of the analog to digital
converter A/D2. The integrity of system input
measurements is affected by this failure.
Self-Test Warning 5
Replace Immediately
Major
Caused by out of range reading of self-test
RTD 13. The integrity of system input
measurements is affected by this failure.
Self-Test Warning 6
Replace Immediately
Major
Caused by out of range reading of self-test
RTD 14. The integrity of system input
measurements is affected by this failure.
Self-Test Warning 7
Replace Immediately
Major
Caused by out of range reading of self-test
RTD 15. The integrity of system input
measurements is affected by this failure.
Self-Test Warning 8
Replace Immediately
Major
Caused by out of range reading of self-test
RTD 16. The integrity of system input
measurements is affected by this failure.
Clock Not Set
Program Date/Time
Minor Occurs if the clock has not been set.
Unit Temp. Exceeded
Service/CheckAmbient
Minor
Caused by the detection of unacceptably low (less
than -40°C) or high (greater than +85°C)
temperatures detected inside the unit.
Unit Not Calibrated
Replace Immediately
Minor
This warning occurs when the relay has not been
factory calibrated.
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