Basler Electric DGC-2020HD - Manual (Page 195)

9469300990 Rev B 185
close wait time has elapsed. The Monitor setting determines whether this condition is monitored only
during transitions or always.
Bus 1 and Bus 2 Reverse Rotation
Bus 1 and Bus 2 reverse rotation pre-alarm settings consist of a single enable/disable setting. If enabled,
a Bus 1 or Bus 2 Reverse Rotation pre-alarm is annunciated if the sensed bus phase rotation differs from
the phase rotation specified on the System Parameters > System Settings screen.
CEM1 through CEM4 Comms Failure
CEM-2020 communication failure pre-alarm settings consist of a single enable/disable setting. If enabled,
a CEM-2020 Communication Failure pre-alarm is annunciated when communication between an optional
CEM-2020 and DGC-2020HD is lost.
ECU Communication Failure
ECU communication failure pre-alarm settings consist of a single enable/disable setting. If enabled, an
ECU Communication Failure pre-alarm is annunciated when the DGC-2020HD detects a communication
problem in the J1939 interface linking the DGC-2020HD with the ECU (Engine Control Unit).
Ethernet 1 and Ethernet 2 Link Lost
Ethernet 1 and Ethernet 2 link lost pre-alarm settings consist of a single enable/disable setting. If enabled,
an Ethernet 1 or Ethernet 2 pre-alarm is annunciated if the Ethernet link between the DGC-2020HD and
the network is lost.
Generator Reverse Rotation
Generator reverse rotation pre-alarm settings consist of a single enable/disable setting. If enabled, a
Generator Reverse Rotation pre-alarm is annunciated if the sensed generator phase rotation differs from
the phase rotation specified on the System Parameters > System Settings screen.
High Battery Voltage
High battery voltage pre-alarm settings consist of an enable/disable setting and a threshold setting. If
enabled, a High Battery Voltage pre-alarm is annunciated when the battery voltage increases above the
threshold setting. A fixed hysteresis of 2% functions as a high battery voltage dropout by preventing rapid
switching of the pickup output. The threshold setting accepts a value in absolute volts or per unit. Per unit
value is based on the nominal battery voltage found on the System Parameters > System Settings
screen. The per unit option is only available through BESTCOMSPlus.
High Coolant Temperature
High coolant temperature pre-alarm settings consist of an enable/disable setting and a threshold setting.
If enabled, a High Coolant Temperature pre-alarm is annunciated instantaneously when the engine
coolant temperature exceeds the threshold setting. A fixed hysteresis of 2% functions as a high coolant
temperature dropout by preventing rapid switching of the pickup output. The arming delay disables the
high coolant temperature pre-alarm function for a user-adjustable period after engine startup. System
units are configured on the System Settings screen in BESTCOMSPlus.
High Fuel Level
High fuel level pre-alarm settings consist of an enable/disable setting, a threshold setting, and an
activation delay. If enabled, a High Fuel Level pre-alarm occurs when the metered fuel level stays above
the threshold setting for the duration of the activation time delay. A fixed hysteresis of 2% functions as a
high fuel level dropout by preventing rapid switching of the pickup output.
ID Missing
ID missing pre-alarm settings consist of a single enable/disable setting. If enabled, an ID Missing pre-
alarm is annunciated when an expected sequence ID of a DGC-2020HD is not detected on the network.
DGC-2020HD Reporting and Alarms