Operating instructions

TM 11574A-OI
2-43
CAUTION
When a failure occurs during automatic testing the unit will suspend operation awaiting
operator intervention.
When an automatic test fails, it will be repeated once. A repeated test failure will cause “FAIL” to be
shown on the right display, with the corresponding test number to the left. The user may then press the
DOWN ARROW to repeat the test, the UP ARROW to skip to the next test or the PRE-TRIP key to
terminate testing. The unit will wait indefinitely until the user manually enters a command.
CAUTION
When Pre-Trip test Auto 2 run to completion without being interrupted, the unit will
terminate pre-trip and display “Auto 2” “end”. The unit will suspend operation until the
user depresses the ENTER key.
When an Auto test runs to completion without a failure, the unit will exit the pre-trip mode and return to
normal control operation. If configuration variableCnF42 is set to IN, a datacorder trip start will be
entered. If CnF42 is set to OUT, the trip start will not be entered.
(c) TO RUN AN INDIVIDUAL TEST: Scroll through the selections by pressing the UP
ARROW or DOWN ARROW keys to display an individual test code. Pressing ENTER
when the desired test code is displayed.
1. Individually selected tests, other than the LED/Display test, will perform the
operations necessary to verify the operation of the component. At the conclusion,
PASS or FAIL will be displayed. This message will remain displayed for up to three
minutes, during which time a user may select another test. If the three minute time
period expires, the unit will terminate pre-trip and return to control mode operation.
2. While the tests are being executed, the user may terminate the pre-trip diagnostics
by pressing and holding the PRE-TRIP key. The unit will then resume normal
operation. If the user decides to terminate a test but remain at the test selection
menu, the user may press the UP ARROW key. When this is done all test outputs
will be de-energized and the test selection menu will be displayed.
3. Throughout the duration of any pre-trip test except the P-7 high pressure switch tests,
the current and pressure limiting processes are active.
(d) Pre-Trip Test Results.
At the end of the pre-trip test selection menu, the message “P,” “rSLts” (pre-trip results)
will be displayed.
Pressing the ENTER key will allow the user to see the results for all subtests (i.e., 1-0, 1-1, etc). The
results will be displayed as “PASS” or “FAIL” for all the tests run to completion since power up. If a test
has not been run since power up, “ -- -- -- -- -- ” will be displayed.