Alpha Technologies ECM - Manual (Page 27)

27 TM 744-862-C0-003 Rev.C
Engine Control Module (ECM)
3.1 Alarms Classifications, continued
Minor Alarm:
These alarms indicate a system fault which, though not indicative of
imminent system failure or shutdown, require service attention as the fault
condition could worsen to shut down the system. A site check by service
personnel is recommended.
MINOR ALARMS:
Control Fail (Latching - after 5 activations)
Indicates a control failure between the ECM and the generator set.
Typically this means that the engine did not start or stop when
commanded to do so. The alarm is cleared when the Reset
command is issued or when the manual stop switch is activated.
Alternator Off
This alarm is active if the generator controller has disabled the
alternator output. A generator controller may disable the alternator
output if the output voltage cannot be held above some threshold.
Self-Test Fail (Latching)
Status of most recent generator test. The alarm is cleared when the
Reset command is issued, the manual stop switch is activated or
another Self-Test command is issued.
Low Ignition Battery
Indicates that the generator’s ignition battery voltage has fallen below
11.5VDC. Alarm is cleared when battery voltage rises above 12.0VDC
indicating battery recovery has begun. Note that low ignition battery
voltage is not alarmed during engine cranking.