9400200990 Rev K
DGC-2020 General Information
i
SECTION 1
GENERAL INFORMATION
TABLE OF CONTENTS
GENERAL INFORMATION ................................................................................................ 1-1
DESCRIPTION....................................................................................................................................... 1-1
FEATURES............................................................................................................................................ 1-1
FUNCTIONS .......................................................................................................................................... 1-1
Generator Protection and Metering.................................................................................................... 1-1
Engine Protection and Metering......................................................................................................... 1-1
Event Recording................................................................................................................................. 1-1
Auto-Synchronizer.............................................................................................................................. 1-1
Contact Inputs and Output Contacts .................................................................................................. 1-2
Automatic Transfer Switch Control (Mains Failure)............................................................................ 1-2
Communication................................................................................................................................... 1-2
USB Port......................................................................................................................................... 1-2
CANbus Interface ........................................................................................................................... 1-2
Dial-Out Modem.............................................................................................................................. 1-2
RS-485 Port .................................................................................................................................... 1-2
AEM-2020 (ANALOG EXPANSION MODULE) ..................................................................................... 1-3
CEM-2020 (CONTACT EXPANSION MODULE) .................................................................................. 1-3
LSM-2020 (LOAD SHARE MODULE) ................................................................................................... 1-3
STYLE AND PART NUMBERS ............................................................................................................. 1-3
Style Number...................................................................................................................................... 1-3
Part Numbers ..................................................................................................................................... 1-4
SPECIFICATIONS ................................................................................................................................. 1-4
Operating Power ................................................................................................................................ 1-4
Power Consumption ....................................................................................................................... 1-4
Battery Ride Through ......................................................................................................................... 1-4
Current Sensing ................................................................................................................................. 1-4
1 Aac Current Sensing.................................................................................................................... 1-4
5 Aac Current Sensing.................................................................................................................... 1-4
Voltage Sensing ................................................................................................................................. 1-4
Contact Sensing ................................................................................................................................. 1-5
Terminals ........................................................................................................................................ 1-5
Engine System Inputs ........................................................................................................................ 1-5
Fuel Level Sensing ......................................................................................................................... 1-5
Coolant Temperature Sensing........................................................................................................ 1-5
Oil Pressure Sensing ...................................................................................................................... 1-5
Engine Speed Sensing ................................................................................................................... 1-5
Output Contacts ................................................................................................................................. 1-5
Fuel Solenoid, Engine Crank, and Pre-Start Relays ...................................................................... 1-5
Programmable Relays (12)............................................................................................................. 1-6
Metering.............................................................................................................................................. 1-6
Generator Voltage (rms) ................................................................................................................. 1-6
Generator Current (rms) ................................................................................................................. 1-6
Generator Frequency...................................................................................................................... 1-6
Apparent Power .............................................................................................................................. 1-7
Power Factor .................................................................................................................................. 1-7
Real Power ..................................................................................................................................... 1-7
Oil Pressure .................................................................................................................................... 1-7
Coolant Temperature...................................................................................................................... 1-7
Battery Voltage ............................................................................................................................... 1-7
Engine RPM.................................................................................................................................... 1-7
Engine Run Time ............................................................................................................................ 1-7
Maintenance Timer ......................................................................................................................... 1-8
Fuel Level ....................................................................................................................................... 1-8
Generator Protection Functions ......................................................................................................... 1-8
Overvoltage (59) and Undervoltage (27) ........................................................................................ 1-8
