TM 9-6115-729-24
0007
TROUBLESHOOTING USING SP FAULT CODES - Continued
CORRECTIVE ACTION
STEP 1.
Verify that no fault codes are listed on upper display.
STEP 2.
Verify equipment setup is correct per TM 9-6115-729-10, WP 0006.
STEP 3.
Verify equipment setup and parameters for synchronization (WP 0085, Table 6).
STEP 4.
STEP 5.
Adjust and evaluate operation using synchronization lights per TM 9-6115-729-
STEP 6.
STEP 7.
Verify the problem has been resolved.
SYMPTOM
4.
SP4
MALFUNCTION
Bus Voltage Fault (Paralleling Only).
Input is active when 208 or 416 VAC is detected on the load bus by dead bus relay low sensor (DBLO)
or dead bus relay high sensor (DBHI). This input is compared to the reading of the bus. If the voltage
of phase A is less than 20% of the rated voltage, it is considered to be dead. If the condition of these
measurements is different with regards to presence or absence of bus voltage, a fault is announced.
CORRECTIVE ACTION
STEP 1.
Verify that no fault codes are listed on upper display.
STEP 2.
Verify equipment setup is correct per TM 9-6115-729-10, WP 0006.
STEP 3.
Verify equipment setup and parameters for synchronization (WP 0085, Table 6).
STEP 4.
STEP 5.
Adjust and evaluate operation using synchronization lights per TM 9-6115-729-
STEP 6.
STEP 7.
Verify the problem has been resolved.
END OF WORK PACKAGE
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