8. GENSET controller
8.1 GENSET controller overview
8.1.1 Description
A GENSET controller controls and protects a diesel engine and generator (that is, a genset), as well as the generator breaker. A
system can include a number of GENSET controllers.
The GENSET controllers work together to ensure effective power management. This includes load-dependent start and stop, and
may include setting the genset priority order, managing heavy consumers, and, if necessary, tripping non-essential loads.
8.1.2 Applications
The system must have at least one GENSET controller.
Each GENSET controller can control up to four heavy consumers (HC) and connect up to three non-essential load groups (NEL).
Figure 8.1
Example of a GENSET controller application, with optional heavy consumers and non-essential loads
Genset 1
HC
M
HC
M
HC
M
HC
M
N
E
L
N
E
L
DEIF network
G
GENSET
controller
Display
N
E
L
8.1.3 GENSET controller functions
Functions
Pre-programmed
sequences
• Genset start sequence and genset stop sequence
◦ Running detection (Multiple feedback options: Frequency, MPU/W/NPN/PNP (RPM), Digital
input, Oil pressure)
◦ Run coil and/or stop coil for engine control
◦ Temperature-dependent cooldown
• Breaker sequences
◦ Generator breaker close sequence (with synchronisation)
◦ Generator breaker open sequence (with de-loading)
DESIGNER'S HANDBOOK 4189340911K UK Page 280 of 521
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