Winco DGC-2020 - Manual (Page 40)

3-4 DGC-2020 Functional Description 9400200990 Rev B
Front Panel HMI
The front panel HMI provides a convenient interface for viewing system parameters and for controlling the
DGC-2020/generator set. Front panel HMI components include an LCD (liquid crystal display), LED (light
emitting diodes) indicators, and pushbuttons.
LCD
The backlit LCD provides metering, pre-alarm, and alarm information. Detailed information about the LCD
is provided in the Software Operation sub-section.
LED Indicators
The LEDs indicate pre-alarm and alarm conditions along with DGC-2020 status and generator status.
Pushbuttons
The pushbuttons are used to scroll through and select parameters displayed on the LCD, change
setpoints, start and stop the generator, and reset alarms.
Remote Display Panel (Optional)
Applications that require remote annunciation can use Basler Electric’s Remote Display Panel, RDP-110.
Using the RDP-110 with the DGC-2020 meets the requirements of NFPA Standard 110. The RDP-110
uses a dedicated, four-terminal interface with the DGC-2020. The RDP-110 communicates with the DGC-
2020 via terminals 6 (RDP TXD–) and 7 (RDP TXD+) and receives power from terminals 4 (RDP BATT+)
and 5 (RDP BATT-). Remote indication of many pre-alarm and alarm conditions is provided by the RDP-
110.
The following pre-alarm conditions are indicated by LEDs on the RDP-110 front panel:
• Battery charger failure ∗
• Battery
overvoltage
• High
coolant temperature
• Low
coolant temperature
• Low fuel level
• Low oil pressure
• Weak
battery
The following alarm conditions are indicated by LEDs and an audible alarm on the RDP-110 front panel:
• Low
coolant level
∗
• High
coolant temperature
• Low oil pressure
• Overcrank
• Overspeed
• Emergency
stop
• Fuel leak/fuel sender failure ∗
• Engine sender unit failure
∗ Can be configured in the DGC-2020 as None, Alarm, or Pre-Alarm. See Section 4, BESTCOMSPlus,
Programmable Inputs, Programmable Functions, for more information. The light on the RDP-110 will turn
on when the input that is assigned to the programmable function is closed, whether the function is
configured as None, Alarm, or Pre-Alarm.
Additionally, the RDP-110 indicates when the DGC-2020 is not operating in Auto mode and when the
generator is supplying load. For more information about the RDP-110, request product bulletin SNE.
RDP-110 communication connections are made at DGC-2020 terminals 6 (RDP TXD–) and 7
(RDP TXD+). RDP-110 operating power is supplied at DGC-2020 terminals 4 (RDP BATT+) and 5 (RDP
BATT–).
Communication Ports
DGC-2020 communication ports include a USB jack, CAN terminals, optional RS-485 terminals, and an
optional modem jack.
USB
The rear-panel, mini-B USB socket enables local communication with a PC running BESTCOMSPlus
software. The DGC-2020 is connected to a PC using a standard USB cable. BESTCOMSPlus is a