- 29 -
Languages
English is the default language ex-factory.
Passwords
Changing different parameters requires different
password levels. Some parameters cannot be changed by
the end-customer because of safety reasons.
There are 4 different password levels:
– No password
– User password (default setting 2003)
– Service password
– Master password
Once the password has been entered, the user can change
all the accessible set points.
The user can change the User password (go with JUMP
button to channel 9116).
Changing parameters
Consult the Qc4002™ user manual for all customer level
parameters, which can be accessed using password
"2003".
In order to receive the default parameters for your unit,
please contact Atlas Copco Service staff.
Fail Classes
All the activated alarms of the module are configured with
a fail class. The fail class defines the category of the alarm
and the subsequent action.
6 different fail classes can be used:
Engine running:
– Alarm: Alarm Horn Relay, Alarm Display.
– Warning: Alarm Horn Relay, Alarm Display.
– Trip of GB: Alarm Horn Relay, Alarm Display, GB Trip.
– Trip & Stop: Alarm Horn Relay, Alarm Display,
(Deload), GB Trip, Gen-Set cooling down, Gen-Set stop.
– Shutdown: Alarm Horn Relay, Alarm Display, GB Trip,
Gen-Set stop.
– Trip of MB: Alarm Horn Relay, Alarm Display, MB Trip.
Engine stopped:
– Alarm: Block engine start.
– Warning: -
– Trip of GB: Block engine start, Block GB sequence.
– Trip & Stop: Block engine start, Block GB sequence.
– Shutdown: Block engine start, Block GB sequence.
– Trip of MB: Block MB sequence.
All alarms can be disabled or enabled as following:
– OFF: disabled alarm, inactive supervision.
– ON: enabled alarm.
Standard modes
The unit has four different running modes and one block
mode. The required mode can be selected via the MODE
puhbutton. Repeat pushing the button until the required
mode appears on the display, then press SEL to select or
BACK to cancel.
This screen appears when pressing the MODE puhbutton.
Auto mode
In this mode the Qc4002™ controls the gen-set and the
circuit breakers (generator breaker GB and mains breaker
MB) automatically according to the operational state.
Semi-Auto mode
In semi-auto mode the operator has to initiate all
sequences. This can be done via the pushbutton functions,
modbus commands or digital inputs. When started in
semi-automatic mode, the gen-set will run at nominal
values.
Test mode
Enables the user to test the generator on a regular basis.
The generator will follow a predefined sequence of
actions.
In this mode it is possible to perform the following tests:
–Simple test
– Load test
– Full test
Manual mode
When manual mode is selected, the gen-set can be
controlled with digital inputs.
Block mode
When the block mode is selected, the unit is locked for
certain actions. This means that it cannot start the gen-set
or perform any breaker operations.
To change the running mode from the display, the user
will be asked for a password before the change can be
made. It is not possible to select ‘block mode’ when
running feedback is present.
The purpose of the block mode is to make sure that the
gen-set does not start for instance during maintenance
work. If the digital inputs are used to change the mode,
then it is important to know that the input configured to
block mode is a constant signal. So, when it is ON the unit
is in a blocked state, and when it is OFF, it returns to the
mode it was in before block mode was selected.
MAN mode cannot be selected, when
AUTO mode is selected. To go from
AUTO to MAN it is necessary to go to
SEMI-AUTO to make MAN available.
To Next Page
Loading...
