TM 9-6115-730-24
0008
TROUBLESHOOTING USING AL FAULT CODES - Continued
CORRECTIVE ACTION - Continued
c.
Verify that engine speed rpm is for correct output frequency by pressing
ENGINE METER key on GSC.
1800 rpm for 60 Hz
1500 rpm for 50 Hz
STEP 5.
Verify the problem has been resolved.
NOTE
This alarm code should occur only when the generator sets are operated in parallel mode.
SYMPTOM
15.
AL 16
MALFUNCTION
Incorrect Phase Sequence - Paralleling fault code
CORRECTIVE ACTION
STEP 1.
Set Battery Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
Turn the ENGINE CONTROL switch to OFF/RESET.
STEP 2.
Verify that paralleling cables are securely connected between generator sets to
be paralleled.
STEP 3.
Verify that generator sets are set for same output voltage.
STEP 4.
Parallel generator sets per TM 9-6115-730-10.
a. Verify the problem has been resolved.
b. If problem remains, verify if any fault codes or engine fault codes are
displayed on GSC upper display and record.
STEP 5.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
Turn the ENGINE CONTROL switch to MANUAL START.
STEP 6.
Verify that load cables are connected properly by observing proper phase
polarity.
STEP 7.
On GSC keypad, press ALARM CODES.
STEP 8.
Verify AL16 appears on upper display. Check setpoints per WP 0083.
STEP 9.
Verify if any fault codes or engine fault codes are displayed on upper display and
record.
a. On EMCP set SYNC MODE switch to OFF.
b. Troubleshoot per displayed fault codes and WP 0009.
STEP 10.
Verify the problem has been resolved.
0008-10
