Function
ASD 531, Technical description, T 140 416 en
21 / 105
2.2.4
Programming / operation
The operation of the ASD 531 aspirating smoke detector in normal mode (after commissioning) is limited to switching on/off or
to resetting a triggered event (alarm/fault). Operation is generally via the FACP, with input of the “Zone On/Off” and “Reset”
functions (on “Reset external” input of the ASD 531).
Events triggered on the ASD 531 can be reset locally using the “
Reset
” key on the control unit or by briefly actuating the “Re-
set External” input. The reset is possible only if the triggered event is no longer pending (e.g. smoke sensor no longer has
smoke). The application of a continuous signal at the “Reset external” input also deactivates (switches off) the ASD 531 (see
also Sec. 2.2.8 and 6.6.2).
Notice
A local reset does not reset a higher-order FACP. It may happen that the reset in the ASD 531 triggers a fault in
the superordinate line of the FACP.
To aid commissioning the ASD 531, there are three rotary switches and two DIP switches inside the device on the AMB 31
main board.
These elements are used when commissioning the ASD 531.
shows the workflow for defining and programming project-specific device functions.
Fig. 3 Workflow for project-related programming
Warning
For normative systems the setting
±20%
/
300 s
is required. Other values are
not
EN tested and may be used
only after consulting with the manufacturer.
The definitions of the pre-defined settings and the operator structure are found in Sec. 4.4.4.2, 7.2.1 and 8.3.
no
yes
no
yes
Using
“ASD
”
PipeFlow
Project-specific selection
of system limits acc. to
Sec. 4.4.4.1
Normative setting of
the
Dip switch
acc. to Sec. 7.2.1.2
“
”
Airflow
Airflow monitoring
acc. to EN 54-20
Create and calculate
“ASD
”
Results compliant
with EN 54-20
PipeFlow
Setting the results
on AMB 31 acc. to
Sec. 4.3.1.1
Non-normative setting of
the
acc. to Sec. 7.2.1.2
Dip switch
“
”
Airflow
