Basler Electric DGC-2020 - Manual (Page 95)

START output connections are made through terminals located on the START relay.
RUN
This output closes when engine cranking is initiated by the DGC-2020. The RUN output remains closed
until an off command or emergency stop command is received.
RUN output connections are made through terminals located on the RUN relay.
Programmable
DGC-2020 controllers with a style number of xxAxxxxxx have four programmable output contacts (OUT 1
through 4). Twelve programmable outputs (OUT 1 through 12) are provided on controllers with a style
number of xxBxxxxxx.
Modes of Operation
OFF
When in the OFF mode, the DGC-2020 will not start under any circumstance. It cannot be started
automatically. Programmable logic functions normally in this mode.
RUN
When in the RUN (manual) mode, the DGC-2020 runs and cannot be shut off automatically. The breaker
can be open or closed through programmable logic inputs. Programmable logic functions normally in this
mode.
AUTO
When in the AUTO mode, the DGC-2020 may be started automatically or “self-start” from an automatic
starting feature listed in the following paragraphs. If the DGC-2020 is not in AUTO mode, the self-starting
modes will have no effect. The self-starting modes are independent, with one exception, meaning that if
any self-starting mode indicates that the unit should run, it will run. It will not shut down unless all self-
starting modes indicate that the unit should not be running.
ATS Contact Input
The ATS programmable function has an input mapped to it from BESTCOMSPlus
®. The unit will start and
run when this contact is closed, and will stop when the contact is open. This mode is independent of the
other self-starting modes.
Generator Exerciser
The unit will start at the designated time and will run for the specified duration. The breaker will be closed
if “Run with Load” is checked in the generator exerciser settings. This mode is independent of the other
self-starting modes.
Mains Fail Transfer Functionality
If mains fail transfer is enabled, the unit will run when the utility is determined to be bad, and will not stop
until the utility has been determined to be good and the load has been transitioned to the utility. This
mode is independent of the other self-starting modes.
Run with Load Logic Element
When the run with load logic element start input is energized, the unit will start, close its breaker, and take
on load at the programmed load rate. If the unit is the only one on the load, it will provide the full load.
When the run with load logic element stop input is energized, the unit will unload at the programmed load
rate, open its breaker, and stop. This mode works in conjunction with demand start/stop, otherwise it is
completely independent of the other self-starting modes.
Engine Run Logic Element
When the engine run logic element start input is energized, the unit will start. When the engine run logic
element stop input is energized, the unit will unload if loaded, open its breaker if needed, cool down, and
then stop.
9400200990 Rev X DGC-2020 Functional Description 3-21