11. Glossary
11.1 Terms and abbreviations
11.1.1 Terms and abbreviations
Term Abbreviation Explanation
Alarm monitoring
system
AMS
Third party equipment used to monitor the controller system's alarms, for example, by
using Modbus TCP/IP communication.
Alternating current AC
Alternating current
module 3.1
ACM3.1
A replaceable PCB with voltage and current measurement inputs. Used in the DEIF
controller.
Analogue input AI
Terminals on a controller hardware module that the controller uses to measure an
analogue input. The analogue input type and range are typically selected during
commissioning from a list of pre-configured voltage, current, and resistance
measurement input ranges. A pre-configured analogue input function or alarm can also
be assigned to the input.
Analogue output AO
Terminals on a controller hardware module that the controller uses to send an analogue
output. The analogue output type and range are typically selected during commissioning
from a list of pre-configured voltage and current output ranges. A pre-configured
analogue output function can also be assigned to the output.
Automatic voltage
regulator
AVR
Regulates the genset voltage. The AVR is external equipment. The AVR can have a
fixed voltage set point. Alternatively, the DEIF controller can control the AVR.
Bi-directional input
The wiring to a controller's digital input and common terminals may be swapped around
without affecting the input's operation.
Blind module
A hardware module that consists of only a module faceplate. These are installed over
empty slots, to protect the controller electronics.
Breaker
A mechanical switching device that closes to connect power sources to the busbar, or to
connect busbar sections. The breaker opens to disconnect the power sources or to split
the busbar.
Busbar
The copper conductors which connect the power sources to the power consumers.
Represented on the single-line diagram as the line that connects all the power sources
and power consumers. If the bus tie breaker is open, there are two separate and
independent busbar sections. Similarly, if the bus tie breaker is closed, there is only one
busbar.
[Busbar]
The busbar side of the breaker. For a SHORE connection controller, this is the ship
busbar. For a BUS TIE breaker controller, this is Busbar B.
Bus tie breaker BTB
Physically disconnects two main busbars from each other, so that they operate as two
separate (split) busbars. Also reconnects split busbars so that they operate as one
busbar. A BUS TIE breaker controller can control a bus tie breaker.
BUS TIE breaker
controller
Controls and protects a bus tie breaker. The controller ensures that the two busbars are
synchronised before closing the bus tie breaker.
Canadian Electrical
Code
CEC
A standard published for the installation and maintenance of electrical equipment in
Canada.
Commissioning
The careful and systematic process that takes place after installation and before the
system is handed over to the operator. Commissioning must include checking and
adjusting the controller.
Common terminal COM
This is generally connected to either a power source, or the supply return. See the
wiring examples for more information.
INSTALLATION INSTRUCTIONS 4189340909I UK Page 135 of 144
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