Generator Run Statistics
The DGC-500 compiles statistics for both individual generator run sessions and the cumulative total of all
generator run sessions. Generator run statistics are stored in DGC-500 nonvolatile memory and displayed
on the Run Statistics screen of BESTCOMS. When the DGC-500 and/or genset are commissioned, a
date is entered for the DGC-500 to use as a starting point for tracking generator run statistics. The logs
for session run and cumulative run statistics track loaded run hours, unloaded run hours, and total run
hours. Additionally, the cumulative run statistics log tracks the number of engine starts and the number of
hours remaining until scheduled maintenance.
Event Log
The event log maintains a history of system events in DGC-500 nonvolatile memory and displays the
event record on the Event Log screen in BESTCOMS. System events are categorized by the event log
into event types. The event log capacity is 30 event types.
Each event type in the log contains an event identifier label, the number of occurrences for the event, and
the time stamp of the most recent event occurrence. The time stamp displayed is user-selectable and can
be real-time clock data or the elapsed engine hours.
When an event type is logged, it occupies one entry (or row) in the log. If the same event type is logged
again, it still only occupies one entry in the log. However, the log entry is updated with the number of
occurrences and the Last Date/Time column is updated with the time stamp of the last occurrence.
If the event log contains the maximum of 30 event types and a new event type is logged, the oldest event
type in the log is overwritten with the new event type.
The event types monitored by the event log are listed below.
• Active DTC exists pre-alarm
• Auto Start contact closed
• Auxiliary input 1 closed
• Auxiliary input 2 closed
• Auxiliary input 3 closed
• Battery charger failure pre-alarm
• Battery overvoltage pre-alarm
• CAN Bus failure pre-alarm
• CAN Bus failure alarm
• Coolant level sender failure
• Coolant temperature sender failure alarm
• DGC-500 protective shutdown
• EE memory checksum error
• Emergency stop alarm
• Engine started
• Flash checksum error
• Fuel leak/sender failure pre-alarm
• Generator phase imbalance detected
• Generator overvoltage detected
• Generator undervoltage detected
• Generator overcurrent detected
• Generator underfrequency detected
• Generator overfrequency detected
• High coolant temperature pre-alarm
• High coolant temperature alarm
• Loss of voltage sender failure alarm
• Low coolant level pre-alarm
• Low fuel alarm
• Low coolant level alarm
• Low oil pressure alarm
• Low battery voltage pre-alarm
• Low oil pressure pre-alarm
• Low coolant temperature pre-alarm
• Low fuel pre-alarm
• MPU speed sender failure alarm
• Normal engine shutdown
• Oil pressure sender failure alarm
• Overcrank alarm
• Overspeed alarm
• Scheduled maintenance pre-alarm
• Unknown shutdown (with ECU enabled,
engine stops without input from the DGC)
• Weak battery voltage pre-alarm
Generator Protection
Multifunction generator protection is provided on DGC-500 controller with style number XXX1. The DGC-
500 can protect a generator against overvoltage, undervoltage, overfrequency, underfrequency,
overcurrent, and phase imbalance.
Overvoltage (59)
Two sets of overvoltage settings are provided: one for three-phase generator connections and one for
single-phase generator connections.
When the average of the three phase voltages (three-phase mode) or the average of the line-to-line
voltage (single-phase mode) increases above the corresponding 59 pickup setting for the duration of the
3-12 DGC-500 Functional Description 9355400990 Rev H
To Next Page
Loading...
