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Commissioning information
Auxiliary output
The interface has an auxiliary output rated at 1A max. The output voltage can be programmed as
unregulated 24V (+/-3V) on the S4-34440-02 or regulated 12V/24V (+/-0.5V) on the S4-34440-12.
Mode
settings
Auxiliary
output
Fail Safe period settings
The fail safe periods are associated with the all the Mains powered interface units in a standalone system
where Outputs are configured for Door release Category A applications ONLY, see page 4.
Mode
settings
Initial fail safe period
(seconds)
Final fail safe period
(minutes)
14
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notes
When 'On' the auxiliary output is enabled and is disabled when
set to 'Off'.
The "Off" setting should be selected when the auxiliary output is
unused to maximise the battery standby period.
If there is a mains failure then the auxiliary output can be
switched off to preserve battery supply for essential inputs and
outputs.
Option for any equipment that needs a reset pulse to remove a
latched condition, such as a conventional beam that is powered
from the auxiliary terminal and signals a fire condition with relay
contacts connected to a line configured as a switch input.
Select the required output voltage. The 12V option is for
S4-34440-12 Interface unit only.
notes
If there is a fault preventing detection of fire, disablement of fire
detection or other conditions preventing fire detection operation, like
supply failure, then the Outputs will turn 'On' (ie doors released) after
an initial fail safe period of 120s (default).
If there are three fail safe conditions that occur within a period set
here then the Outputs are latched 'On' (ie doors released) and can only
be reset by powering down the interface and then powering it up
again. This final fail safe period can be disabled by selecting the
'Disabled' setting, which is a default setting.
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S4 Mains powered interface unit
4188-968 issue 2_Part 2_09-10_S4 mains interface
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