Winco DGC-2020 - Manual (Page 93)

9400200990 Rev K DGC-2020 BESTCOMSPlus Software 4-23
Single-Phase Override
The DGC-2020 will switch to single-phase voltage sensing
Q when a contact input (programmed as a
single-phase override input) is received. Either A-to-B or A-to-C sensing can be selected.
Fuel Level Function
This setting
R allows the selection of four fuel types: Fuel Lvl, Natural Gas, Liquid Propane, or Disabled.
Selecting a fuel type other than Fuel Lvl will disable any fuel level indication, alarm, and pre-alarm and
disable the Fuel Level value on the Engine screen of the Metering Explorer in BESTCOMSPlus.
Power Up Delay
In some cases, the ECU takes longer than the DGC-2020 to power up. The power up delay setting
S is
used to delay the initial pulsing of the ECU for data on DGC-2020 power up.
Auto Config Detection
When enabled
T , this feature allows the generator to automatically detect whether the unit is in the
configured three-phase configuration, a single-phase AB configuration, or a single-phase AC
configuration based on line to neutral (L-N) voltage measurements. Upon starting the genset, the
configuration of the generator will be automatically detected and the metering and generator protection
will be adjusted accordingly by automatically setting Single Phase Override, Single Phase AC Sense
Override, and Low Line Override programmable functions as indicated by the detected Line to Neutral
voltages. There is a one-second “debounce” in the detection to prevent the DGC-2020 from bouncing
between detected configurations. When the DGC-2020 is in the OFF mode or the engine is not running,
the Automatic Configuration Detection is disabled and the DGC-2020 will be assumed to be in the last
valid automatically detected configuration.
It is recommended that the Single Phase Override, Single Phase AC Sense Override, and Low Line
Override programmable functions not be mapped to contact inputs when Automatic Configuration
Detection is enabled.
Single Phase Detection Threshold.
U If the difference between the maximum and minimum L-L voltage
exceeds this threshold, the unit will be auto detected to be in single-phase configuration. Single-phase
detection sets the Single Phase Override programmable function and/or the Single Phase AC Override
programmable function to force the DGC-2020 into the appropriate single-phase mode as specified by the
Single Phase Detection Generator Connection
setting. If contact inputs are also mapped to the Single
Phase Override and Single Phase AC Sense Override programmable functions, the results of the
Automatic Configuration Detection will be ORed with what is indicated by the contact inputs.
Low Line Detection Threshold.
V If the average of the valid L-L voltages for the detected configuration is
above this threshold, the unit will be auto detected as being in a high line configuration. If the average is
below this threshold, it will be auto detected as being in a low line configuration. When detected to be in a
low line configuration, the detection will set the Low Line Override programmable function to force the
DGC-2020 into the low line configuration. If contact inputs are also mapped to the Single Phase Override
and Low Line Override programmable function, the results of the Automatic Configuration Detection will
be ORed with what is indicated by the contact inputs.
Single Phase Detection Generator Connection.
W This setting specifies whether the machine should go
into a single-phase AC or single-phase AB configuration when the machine is detected to be in a single-
phase configuration.
Relay Control
The default operational setting for the Start
X , Run Y , and Prestart Z relays is “Predefined” or standard. Any
of these relays can be logic driven by selecting the “Programmable” setting. Logic driven (programmable)
relays must be set up using BESTlogic+.
BESTCOMSPlus system settings (DGC-2020, System Parameters, System Settings) are illustrated in
Figure 4-20.