GC1100
SEDEMAC
Page | 40
Sr.
No.
Alarms
Causes
Action options
22
Over Frequency
Indicates that genset output frequency has exceeded the
pre-set threshold
Shutdown/
Warning
23
Under Frequency
Indicates that genset output frequency has fallen below
the pre-set threshold
Shutdown/
Warning
24
Over Current
Indicates that genset current has exceeded the pre-set
shutdown threshold
Shutdown/
Warning/
Electrical trip
25
Over Load
Indicates that the measured kW load rating has
exceeded the pre-set threshold
Shutdown/
Warning/
Electrical trip/
Notification
26
Unbalanced
Load
Load on any phase is greater or less than other phases
by a threshold value
Shutdown/
Warning/
Electrical trip/
Notification
27
Over Speed
Indicates that genset speed has exceeded the pre-set
over speed threshold
Shutdown
28
Gross over
speed
Indicates that genset speed has exceeded the pre-set
gross over speed threshold (This threshold is
configurable percentage value of over speed threshold)
Shutdown
30
Under Speed
The engine speed has fallen below the pre-set RPM
Shutdown
31
Extended Over
Load Trip
Indicates that there was 100% load on the genset for one
hour in the time interval of 12 hours
Electrical trip
32
Charge Fail
The charging alternator voltage has dropped below the
supply voltage
Shutdown/
Warning/
Electrical trip/
Notification
33
V-Belt Broken
Switch
Indicates that there is failure of the V-belt, which is
driving the charging alternator
Shutdown/
Warning/
Electrical trip/
Notification
34
Battery Under
Voltage
The battery voltage has fallen below the pre-set
threshold
Shutdown/
Warning/
Electrical trip/
Notification
35
Battery Over
Voltage
The battery voltage has exceeded the pre-set threshold
Shutdown/
Warning/
Electrical trip/
Notification
36
Filter
Maintenance
Indicates that engine running hours has exceeded the
pre-set hours limit or maintenance due date has
occurred, and filter servicing is required.
Warning/
Notification
37
Mains Phase
Reversal
Indicates the mains unhealthy condition
Notification
