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The detector groups appear first in the menu.
A detector group is a collection of smoke
detectors that form a fire zone. One or more
smoke detectors can be connection to a
detector group. The smoke detectors in a group
are indicated with a star to the right of the
menu. A smoke detector can be assigned to
more than one detector group if required.
When you close the menu, a message tells you
the number of smoke detectors in this group.
The external input of the KSUB is always
connected to detector 1 for each KSUB. This
means that external fire alarm systems
connected to a KSUB can also be included in a
particular detector group. The fire alarm input
of the KSUA always takes precedence and can
be thought of as belonging to all detector
groups.
The fan control is configured next. FAN 1 is
the same as Relay 1 in the description. Relay 1
is intended for the air handling system. Relay
2 can be used for another ventilation system,
heater batteries or smoke extraction fans. An
important part of the configuration process is
defining what is to happen when a smoke
detector group is triggered. If a detector group
is considered to be critical, the entire system
must switch to fire mode, which means that
the ventilation system is stopped, all
ventilation dampers are closed, the evacuation
dampers are opened and a smoke extraction
fan is started. In a non-critical group, only the
dampers within the group are affected if a
smoke detector is triggered. Detector groups
are defined as critical in Stop/DetGrps in the
menu.
The fan output of the KSUB can be used if
there are a number of small ventilation
systems in the installation, and you want them
to be controlled by the relevant detector group.
The output is hard coded so that detector
group 1 is connected to KSUB address 0.
Detector group 2 is connected to KSUB
address 1, etc. up to detector group 12.
The KSUB fan relay output is dependent on
the Relay 1 configuration in the KSUA. If you
want the fans connected via the KSUB to stay
on during the damper exercises until the
relevant damper closes, set Stop/Test to OFF
in the Relay 1 menu. Other functions are also
dependent on the settings in the Relay 1 menu.
There are eight time channels that can be
controlled by Modbus. Each damper can be
assigned to one of these channels. By a
command from the modbus can then all
dampers belonging to the channel opened or
closed. Functional check or fire overrides the
control from modbus and dampers go to the
position function control or fire requires. Only
ventilation dampers can be assigned to a time
channel. No fan functions are affected by time
channels. After a power failure in KSUA, all
schedules go to off mode. I.e. If daytime
operation and alarm-free situation is valid the
dampers will open.
Inputs
Modbus / RJ45
The contact is standard for Modbus RTU and
contains outputs for +5V on pin 7 and 0V on
pin 8. A is on pin 5 and B is on pin 4. +5V can
be loaded with up to 100 mA resistive load.
The contact for Modbus over TCP/IP is on the
left side of the box. (TCP/IP is an optional
extra)
MBUS, SBUS
These are connections for Modbus and SBus
respectively. The SBus connection goes to the
slave units.
Forced opening
If the input is closed, the dampers will move to
the open position. All other functions are
disabled. It is possible to define whether the
fans will be on or off.
Alarm
This input is used to connect to a central fire
alarm system. If 9-10 is open the entire system
switches to critical mode. Ventilation systems,
etc. are stopped immediately, the dampers are
switched off and any smoke extraction fans are
started. Normally manual resets are necessary.
In menu 19 it could be changed to automatic
reset.
Night mode
The night mode input is activated when 11-12
is open. What happens next is that any heater
battery and the ventilation system are stopped
