Basler Electric DGC-2020ES - Manual (Page 10)

2 9469200990 Rev C
Output contacts include three dedicated relays for energizing an engine’s glow plugs, fuel solenoid, and
starter solenoid. Four additional user-programmable output contacts are provided.
Additional contact inputs and output contact requirements can be accommodated with an optional CEM-
2020 (Contact Expansion Module). Contact Basler Electric for ordering information.
Automatic Transfer Switch Control (Mains Failure)
The DGC-2020ES can detect a mains failure via a single- or three-phase bus input. A mains failure is
established when any one of the following conditions are met:
•
Any phase of bus voltage falls below dead the bus threshold
•
Any phase of bus voltage is unstable due to overvoltage or undervoltage
•
Any phase of bus voltage is unstable due to overfrequency or underfrequency
At this time, the DGC-2020ES will start the genset and when ready, apply power to the load via the
genset. The DGC-2020ES implements open transitions to and from the mains. When the mains returns
and is considered stable, the DGC-2020ES will transfer the load back to the mains.
Communication
DGC-2020ES communication features include a standard USB port for local (and temporary)
communication, SAE J1939 interface for remote communication, and RS-485 interface for communication
with an optional Remote Display Panel.
USB Port
The USB communication port can be used with BESTCOMSPlus software to quickly configure a DGC-
2020ES with the desired settings or retrieve metering values and event log records.
CAN Interface
The CAN interface provides high-speed communication between the DGC-2020ES and the engine control
unit (ECU) on an electronically controlled engine. This interface provides access to oil pressure, coolant
temperature, and engine speed data by reading these parameters directly from the ECU. When available,
engine diagnostic data can also be accessed. The CAN interface supports the following protocols:
•
SAE J1939 Protocol - Oil pressure, coolant temperature, and engine speed data are received
from the ECU. In addition, DTCs (Diagnostic Trouble Codes) help diagnose any engine or related
failures. The engine DTCs are displayed on the front panel of the DGC-2020ES and may be
obtained using BESTCOMSPlus
® software.
•
MTU Protocol - A DGC-2020ES connected to a genset equipped with an MTU ECU receives oil
pressure, coolant temperature, and engine speed data from the engine controller, along with
various alarms and pre-alarms that are MTU specific. In addition, the DGC-2020ES tracks and
displays the active fault codes issued by the MTU engine ECU.
Style Number
Standard-order DGC-2020ES controllers are identified by a style number which consists of a combination
of letters and numbers that define the controller’s electrical characteristics and operational features. The
model number, together with the style number, describes the options included in a specific controller.
Figure 1 illustrates the DGC-2020ES style number identification chart.
Introduction DGC-2020ES