For a general description of the available running modes, please refer to the chapter "Running
mode description".
4.4.4 Island operation
Auto mode description
The unit automatically starts the genset and closes the generator breaker at a digital start command. When
the stop command is given, the generator breaker is tripped, and the genset will be stopped after a cooling
down period. The start and stop commands are used by activating and deactivating a digital input or with the
time-dependent start/stop commands. If the time-dependent start/stop commands are to be used, the auto
mode must also be used.
For a general description of the available running modes, please refer to the chapter "Running
mode description".
4.4.5 Load takeover
Auto mode description
The purpose of the load takeover mode is to transfer the load imported from the mains to the genset for oper-
ation on generator supply
The unit automatically starts the genset and closes the generator breaker at a digital start command. When
the stop command is given, the generator breaker is tripped, and the genset will be stopped after a cooling-
down period. The start and stop commands are used by activating and deactivating a digital input or with the
time-dependent start/stop commands. If the time-dependent start/stop commands are to be used, then the
auto mode must also be used.
4.5 Running mode description
4.5.1 Manual mode
The unit can be operated in manual mode (MAN). Manual means that the unit will not initiate any sequences
automatically, as is the case with the auto mode. It will only initiate sequences, if external signals are given.
An external signal may be given in three ways:
1. Display push-buttons
2. Digital inputs
3. Modbus command at service port or RS485
The standard CGC 400 is only equipped with a limited number of digital inputs, please refer to
"Digital inputs" in this document and the data sheet for additional information about availabili-
ty.
The following sequences can be activated in manual mode:
CGC 400 DRH 4189340786 UK
Functional descriptions
DEIF A/S Page 16 of 96
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