9469200994 Rev — v
DGC-2020ES Contents
Contents
Mounting ...................................................................................................................................................... 1
Hardware ................................................................................................................................................... 1
Dimensions ................................................................................................................................................ 1
Terminals and Connectors ......................................................................................................................... 3
Connections ............................................................................................................................................... 4
Operating Power ........................................................................................................................................ 4
Generator Current Sensing ....................................................................................................................... 5
Generator Voltage Sensing ....................................................................................................................... 5
Bus Voltage Sensing ................................................................................................................................. 5
Analog Engine Sender Inputs .................................................................................................................... 6
Magnetic Pickup Input ............................................................................................................................... 6
Contact Sensing Inputs ............................................................................................................................. 6
Output Contacts ......................................................................................................................................... 7
USB Interface ............................................................................................................................................ 7
CAN Interface ............................................................................................................................................ 7
Optional Remote Display Panel Connections ........................................................................................... 8
Typical Connections ................................................................................................................................... 9
Connections for Typical Applications ........................................................................................................ 9
CAN Connections .................................................................................................................................... 13
CEM-2020 Connections .......................................................................................................................... 14
Installation for CE Systems ..................................................................................................................... 14
Installation in an Ungrounded System Application .................................................................................. 14
Power Input ................................................................................................................................................ 15
Nominal Voltage Input and Acceptable Range of Input Voltage ............................................................. 15
Terminal Assignments ............................................................................................................................. 15
Power Consumption ................................................................................................................................ 15
Battery Ride-Through Capability ............................................................................................................. 15
Fuse Protection ....................................................................................................................................... 15
Voltage and Current Sensing ................................................................................................................... 17
Generator Voltage ................................................................................................................................... 17
Bus Voltage ............................................................................................................................................. 17
Generator Current ................................................................................................................................... 17
Speed Signal Inputs .................................................................................................................................. 19
Magnetic Pickup ...................................................................................................................................... 19
Generator Sensing Voltage ..................................................................................................................... 19
Specifications ............................................................................................................................................ 21
Control Power .......................................................................................................................................... 21
Battery Ride Through .............................................................................................................................. 21
Current Sensing ....................................................................................................................................... 21
Voltage Sensing ...................................................................................................................................... 21
Contact Sensing ...................................................................................................................................... 22
Engine System Inputs.............................................................................................................................. 22
Output Contacts ....................................................................................................................................... 23
Metering ................................................................................................................................................... 23
Generator Protection Functions .............................................................................................................. 26
Logic Timers ............................................................................................................................................ 26
Communication Interface......................................................................................................................... 26
Real-Time Clock ...................................................................................................................................... 27
Liquid Crystal Display (LCD) ................................................................................................................... 27
Type Tests ............................................................................................................................................... 27
Environment ............................................................................................................................................ 28
UL Approval ............................................................................................................................................. 28