MORLEY-IAS ZXa, Руководство по вводу в эксплуатацию, Страница: 52 / 55

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MORLEY-IAS
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OMMISSIONING
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ANUAL
Document No. 996-071, Revision: 1 , Aug 99
Page 47
16.2 Overriding Delays on Individual Outputs
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The panel allows delays to be set on individual outputs, as required.
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It is recommended that a facility is provided, in the installation, to override any delayed circuits.
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This can be achieved in either of two ways as follows:-
1. Assign a manual call point to a zone in which all outputs act immediately.
2. Allocate all delayed outputs to a system event. Arrange a manual call-point to generate this event.
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If a specific manual call-point (pull station) is to be used for this purpose, it may be desirable to locate the call
point either adjacent to the control panel or on a main exit route and label it accordingly.
16.3 Operational Features
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The Fire Alarm Control Panel has a number of optional features. The definition and operating characteristics of
these features are described below.
16.3.1 Output to fire alarm devices :
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It is possible to silence the fire alarm devices at access level 2
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Following silencing, it is possible to re-sound the fire alarm devices at access level 2.
16.3.2 Delays to Outputs :
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The operation of delays to fire alarm devices is selected at User Level 3 and applies to:
1. fire detectors
2. manual call points
3. signals from specific zones.
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The delay times are configurable at User Level 3 and can be adjusted in 10-second increments up to a maximum
delay of 10 minutes.
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It is possible to override these delays.
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The delay to one output signal does not affect the action of the other outputs.
16.3.3 Coincidence Detection :
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The fire alarm control panel can inhibit the output to fire alarm devices until two or more signals are received from
detection points operating within the same zone.
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When programmed to operate in this manner the following applies:
1. It can only be selected at User Level 3.
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Inhibiting the programmed fire alarm output signal in this manner does not affect the action of any other outputs.
16.3.4 Fault Signals from points:
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The control panel can receive & process fault signals from points, under these conditions the faults are indicated
as zone faults.