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2 About this manual
2.1 Description of safety
pictograms
2.2 Abbreviations
2.3 Definitions
This symbol draws your attention to
dangerous situations. The operation
concerned may endanger persons
and cause injuries.
This symbol is followed by
supplementary information.
AC Atlas Copco
AIB Atlas Copco Instruction Book
ASB Service Bulletin
ASL Atlas Copco List
CAC Charge Air Cooler
CAN Controller Area Network Interface
DDR Diagnostic Data Reader
ECM Engine Control Module
EOM Engine Operation Manual
HP High-pressure
LP Low-pressure
MAX Maximum
MIN Minimum
MP Medium-pressure
PAR Portable Energy Division
PC Personal Computer
RPM Revolutions Per Minute
Control panel
This is the panel on the unit where
the User Interface, power switch,
DDR connector, PC connector,
remote control connector, heater
switch, light switch and pressure
setpoint buttons are situated.
Technician
AC personnel allowed to change
settings of the control and safety
system.
Operator
AC personnel or user allowed to
operate the compressor unit with the
push-buttons.
Load
Operating condition with inlet
compressor open and engine speed
regulated between minimum and
maximum.
Not loaded
Operating condition with inlet
compressor forced to closed position
by operator command. The engine
speed is held at minimum.
Unload
Operating condition with inlet
compressor forced to closed position
by working pressure command. The
engine speed is held at minimum.
DDR
Diagnostic Data Reader. This is a
tool that can be connected to the
ECM to read and calibrate engine
parameters.
ECM
Engine Control Module. This is the
basic engine control module used by
DDC for the engine controls
(emissions, safeties, fuel injection,
...).
Pc4003™ Compressor Control Module. This
module is linked with the ECM and
is used for speed regulation and for
the compressor controls (unloading
system, safeties, ...). It can be
operated via PC or User Interface.
User Interface
setpoint
Max. working pressure setpoint
calibrated in the Pc4003™.
At this max. setpoint the engine
speed will be regulated between
max. and min. speed when running in
manual or automatic operation.
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