Term Abbreviation Explanation
Out of service
A state that an alarm can be assigned to by an operator. Out of service alarms are
inactive alarms. Out of service alarms do not automatically return to service and
require operator action.
Parameter
A value, or set point, used to determine the controller's operation. Parameters
include nominal values, the configuration options for the configurable inputs and
outputs, and alarm settings. The same set of parameters can be uploaded to
several controllers.
Personal computer PC Used to run the PICUS software. For example, a laptop computer.
Phase L1 L1
The power line for one phase of a three-phase electrical system. Corresponds to R
in Germany, Red in the UK and Pacific, Red in New Zealand, Black in the USA, and
U on electrical machine terminals. The above colour codes are for guidance only. If
uncertain perform a phase measurement.
Phase L2 L2
The power line for one phase of a three-phase electrical system. Corresponds to S
in Germany, Yellow in the UK and Pacific, White in New Zealand, Red in the USA,
and V on electrical machine terminals. The above colour codes are for guidance
only. If uncertain perform a phase measurement.
Phase L3 L3
The power line for one phase of a three-phase electrical system. Corresponds to T
in Germany, Blue in the UK and Pacific, Blue in New Zealand, Blue in the USA, and
W on electrical machine terminals. The above colour codes are for guidance only. If
uncertain perform a phase measurement.
Power P The 3-phase active power, measured in kW.
Power in Control
Utility Software
PICUS
The DEIF utility software, used to design, configure, troubleshoot and monitor a
system.
Power management
system
PMS
The controllers share information and work together to ensure enough power to
supply the load.
Power supply module
3.1
PSM3.1
A replaceable PCB that powers the controller. This module includes three relay
outputs for status signals. Used in the DEIF controller.
Power take home PTH The shaft generator is used as a motor to drive the ship's propellor.
Printed circuit board PCB Supports and electrically connects components.
Processor and
communication
module 3.1
PCM3.1
A replaceable PCB, which contains the controller processor, as well as the CAN
bus connections and Ethernet communication connections. Used in the DEIF
controller.
Protection and Power
Management
PPM
A versatile controller consisting of several modules and display unit designed for
marine use.
Pulse width
modulation
PWM
Terminals with an output that uses variable pulse widths, and behaves as an
analogue output.
PNP A type of transistor.
Reactive power Q The 3-phase reactive power, measured in kvar.
Resistance
measurement input
RMI
Variable resistance device, used for some of the input terminals on genset
controllers.
Running
A genset is regarded as running if the engine is started and there is running
detection. A running engine does not necessarily have to be synchronised with the
busbar.
SEMI mode
A controller operating mode. Operator commands (for example, close breaker) start
pre-programmed sequences in the controller. Apart from trips, the controller does
not automatically open or close breakers or start or stop equipment.
Shaft generator SG A generator installed on the ship's main shaft that produces electricity.
PPM 300 Operator's manual 4189340910 UK
www.deif.com Page 153 of 157
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