Basler Electric DGC-2020 - Manual (Page 78)

programmable contact input is closed, the front panel display shows the name of the closed input if it was
programmed as an alarm or pre-alarm input. Alarm inputs are annunciated through the Normal display
mode screens of the front panel. Pre-alarm inputs are annunciated through the pre-alarm metering screen
of the front panel. If neither is programmed, no indication is given. Programming an input as neither is
useful when a programmable input is used as an input to programmable logic.
Connections for the programmable inputs are provided at terminals 15 (Input 16) through 30 (Input 1).
The negative side of the battery voltage (terminal 2) serves as the return connection for the
programmable inputs.
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. It 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 or low battery voltage
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®
Software, Programmable Inputs, Programmable Functions, for more information. The light on the RDP-
110 turns on when the input that is assigned to the programmable function is closed, whether the
function is configured as None, Alarm, or Pre-Alarm.
† For DGC-2020 units loaded with firmware version X.14.00 and higher this LED is fully programmable via
BESTlogic™Plus.
Additionally, the RDP-110 indicates when the DGC-2020 is not operating in Auto mode and when the
generator is supplying load. When the DGC-2020 is in an alarm state not listed above, the Switch Not In
3-4 DGC-2020 Functional Description 9400200990 Rev X