Man-1078_Sigma_CP_AUS_12
Page 23 of 29
The
Isolate
switch on the AIM module allows the ACF output to be disabled and not operate on an
alarm condition. A yellow
ACF Isolated
LED indicates when the ACF is isolated, and signals a
General Disablement to the Sigma control panel section.
21.2
Door Holder Output
The door holder circuit allows magnetic fire doors to be automatically closed in the event of a fire,
thus limiting smoke and fire egress in an emergency situation.
Four terminals are provided:
DH 24V In
A 24V supply to power the magnetic door holders.
Door Holders
The 24V from the “DH 24V In” circuit appears at this output under
“Normal” condition. When an alarm occurs, power is disconnected from the “Door Holder” output.
The maximum output of the Door Holder circuit must be less than 1A.
The status of the door holder output follows that of the ACF output as described in section 21.1
and is isolated via the ACF Isolate facility. The only exception is when the
DOOR D.
dipswitch is
ON, the Door Holder Output activates after a 30 seconds delay.
21.3
ASE Outputs (Alarm Signalling Equipment)
Clean contact relay outputs, rated at 30VDC 1Amp, are provided to facilitate connection of the
Sigma fire panel to a variety of ASE depending on the installation. It is the responsibility of the
installer to ensure that the ASE being installed is compatible with the local fire station to which it is
being connected.
ALARM
normally de-energisedactivates on a non-disabled Alarm
FAULT
normally de-energisedactivates on a non-disabled Fault
ISOLATED
normally de-energisedactivates on a non-disabled Disable
POWER FLT normally energised, de-activates when there is an abnormality with the power
supply.
COINC.
normally de-energised activates on multiple alarms. This output will activate when
an alarm occurs any of the zones specified as being
coincident
zones. See options
51 to 58 in Section 0.
ENABLE
normally de-energised activates when the
Enable Control
keyswitch is activated.
i.e. The panel enters the Level 2 state.
ACF O/P
this output follows the state of the ACF monitored output.
21.4
Installation
See Section 15 for full installation instructions.
21.5
Configuration.
The AIM only has 3 configurable parameters which are set via dip-switches.
LATCH
sets the ACF output to latching
FAIL S.
sets the ACF output to normally energised.
DOOR D.
sets the Door Holder Output to trip 30 seconds after the ACF output activates.
