Atlas Copco QAC 1100 Sd, Instruction Manual, Page: 27 / 64

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Enter passwords
To change the different parameters, different
password levels are required.For safety reasons,
some parameters cannot be changed by the final
user.
There are 3 different password levels:
- User password (default value 2003)
- Service password
- Main password
Once having entered the password, the user can
change all the parameters he is able to access.
The user can change the customer password (go to
channel 9116 with the JUMP button)
Languages
English is the factory default language.
Changing the parameters
Refer to the Qc4002™ MkII user manual for all
the parameters at customer level, that can be
accessed through the "2003" password.
For getting default parameters for your unit, contact
Atlas Copco customer service.
Standard modes
The unit has four different running modes and one
block mode.The desired mode shall be selected
through the MODE pushbutton.Depress the button
until the desired mode is displayed on the screen,
after this, depress SEL to select or GO BACK to
cancel.
When the MODE pushbutton is depressed, the
following screen is displayed:
Auto mode
In this mode, the Qc4002™ MkII automatically
controls the generator set and the circuit breakers
(GB of the generator and MB of the mains current)
depending on the running status.
In the AUTO mode, STOP button and
open/close button of GB do not work.
Semi-Auto mode
In the semi-auto mode the operator has to start all
the sequences.This can be done using the functions
of pushbutton, modbus commands and digital
inputs.The generator set, when stated in the
automatic mode, runs at rated values.
Test mode
It allows the user to regularly test the generator.The
generator runs a predetermined sequence of actions.
This way, it is possible to run the following tests:
- Simple test
- Load test
- Full test
Manual mode (Man)
When the manual mode is selected, the generator
frequency and voltage can be controlled byexternal
inputs.
When the AUTO mode is selected,
the Man mode cannot be selected.
To go from AUTO to Man mode, it is
first necessary to go to SEMI-AUTO
mode, in order to have the Man mode
available.