TM 9-6115-730-24
0011
TROUBLESHOOTING FAILURES WITHOUT FAULT CODES - Continued
SYMPTOM
15.
Equipment Runs Normally on Other Source of Power (Utility or Other Generator Set), But Will Not Run on
This Generator Set.
MALFUNCTION
Improper Load.
CORRECTIVE ACTION
STEP 1.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
On EMCP set ENGINE CONTROL switch to MANUAL START.
STEP 2.
Verify output of generator set is proper voltage and frequency 10%. Reset GSC
and DVR parameters to obtain desired output (WP 0083).
STEP 3.
Check nameplates of load equipment to verify generator set output programming
is correct for device(s). Delete load or reset GSC and DVR parameters to obtain
NOTE
Analyze load. Excessive silicon controlled rectifier (SCR) (Thyristor) equipment connected to
generator set may distort waveform and equipment that will not run may be more sensitive to
waveform distortion than most. Example of SCR equipment would be anything with a variable
speed drive 1/4 HP or more. Lamp dimmers are also a source of the kind of noise that creates
problems with other equipment.
STEP 4.
Disconnect SCR equipment and see if that improves operation.
STEP 5.
May need isolation transformer for SCR or sensitive equipment to prevent
distortion on the generator output.
STEP 6.
Verify the problem has been resolved.
0011-17