Term Abbreviation Explanation
Pt100, Pt1000 Platinum temperature sensors
Pulse width
modulation
PWM
Terminals with an output that uses variable pulse widths, and behaves as an analogue
output.
PNP A type of transistor.
Rack
An aluminium box with a rack system that houses the hardware modules. Each
controller consists of a rack and a number of hardware modules.
Rapid spanning tree
protocol
RSTP A protocol used to compute the topology of a local area network.
Resistance
measurement input
RMI Variable resistance device, used for some of the input terminals on genset controllers.
SD card External memory
Shaft generator SG A generator installed on the ship's main shaft that produces electricity.
Shaft generator
breaker
SGB
The breaker between the shaft generator and the main busbar/switchboard. A SHAFT
generator controller can control a shaft generator breaker.
SHAFT generator
controller
Controls and protects the power supply from the shaft generator.
Shore connection SC
The ship is supplied with electricity from land while in harbour through the shore
connection.
Shore connection
breaker
SCB
The breaker between the shore connection and the main busbar/switchboard. A SHORE
connection controller can control a shore connection breaker.
SHORE connection
controller
Controls and protects the power supply from the shore connection.
Shutdown An emergency or fast stop of the genset engine. No cooldown time is allowed.
Single-phase
A system where the load is connected between one phase and the neutral. Note:
Single-phase does NOT mean a 3-wire single-phase distribution system, where the
waveforms are offset by a half-cycle (180 degrees) from the neutral wire.
[Source]
The source side of the breaker. For GENSET, EMERGENCY genset, and SHAFT
generator controllers, this is the generator. For a SHORE connection controller, this is
the shore connection. For a BUS TIE breaker controller, this is Busbar A.
Supervisory control
and data acquisition
system
SCADA
Switchboard
The cabinet where the power sources are connected to the power consumers. See
Busbar too.
Switchboard control SWBD control
A controller operating mode. Power management and operator commands to the
controller are disabled. The operator controls the system using the switchboard. The
controller monitors operation, and the controller protections are active (that is, if an
operating value activates an alarm, the controller does the alarm action).
System
The gensets, the other power sources, all breakers, the busbars, and all their
controllers. Within the system, the DEIF controllers work together to supply the power
required safely and efficiently.
Third-party equipment
Equipment other than the DEIF controller. For example: The genset, the genset engine
control system, the wiring, the busbars, and the switchboard.
Tie breaker TB
Used to connect/disconnect the emergency busbar from the main busbar. The
EMERGENCY genset controller can control a tie breaker. (Note: The breaker between
two main busbars is called a bus tie breaker.)
Time t
INSTALLATION INSTRUCTIONS 4189340909I UK Page 138 of 144
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