Nexus 21 A1557 Auxiliary Circuits, Cause & Effect Editing, Final Commissioning

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Refer to the Installation & Commissioning Manuals for these boards.

6.6Auxiliary Circuits

Any auxiliary circuits or equipment which is not supplied as a standard part of the fire alarm panel is the responsibility of the installer and must be tested for safe and correct operation by the commissioning engineer. If special output facilities are provided as extra equipment, refer to separate drawings and manuals for commissioning information.

6.7Cause & Effect Editing

The Nexus panel may now be programmed with the text, zone and cause & effect information.

WARNING: We strongly recommend that no cause & effect programming should be attempted without the use of the pc down-load facility due to the extensive range of options available. However, if direct panel programming is unavoidable, a separate document entitled “Programming the Nexus 1-8 Loop Analogue Addressable Control Panel Without a PC” is available.

6.7.1Cause & Effect Testing

Testing of the panel’s fire and fault relays and all cause & effect outputs must be done with the system fully functional. There are two options:

(i)Operate field devices and physically check programmed output devices for correct operation.

(ii)Select engineer’s option 5: STATUS and operate devices with the System Enabled option as described in the Nexus 1-8 Loop Installation Manual. This will cause selected devices to go into fire and operate the panel’s cause & effect programming. Physically check programmed output devices for correct operation.

6.8Final Commissioning

6.8.1Select engineer’s Option 9: DEVICE TEST and carry out tests on all sensor devices.

6.8.2Testing of the panel’s fire and fault relays and all cause & effect outputs must be done with the system fully functional.

There are two options for testing the panels cause & effect:

(i)Operate devices as required

(ii)Use engineer’s Option 5: STATUS, selection 1 SYSTEM ENABLED to operate devices

Document Ref: Nex8inst.doc/Rev0 09.07.00

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Contents Contents User Controls & Indications Exploded View and Mechanical Data/Text IdentificationDisplay LBAR1 Lithium BatteryNC1 Power Supply IllustrationA1535 8 Way Programmable Input/Output Relay Board Ii A1536 8 Way Programmable Input/Output Alarm BoardLoop Card Expansion Motherboard Programmable Expansion BoardsImportant Notes on Batteries Document Ref Nex8inst.doc/Rev0 Number Loops Overview of Engineer’s Menu Options Access level 1278Access level 8812 Accessing Engineer’s MenuIsolate Setting Time & DateDevice Status Configure LoopEdit ADR VAL Type STS CMD Status Disabled/EnabledStatus To Printer Alert Trip Level Loop ContentsZones Alarm Test Extended MenuFire Trip Level Panel DelayProgramming the Number of Displays Repeaters Read MemoryClear Print Queue Print Cause and Effect Data Print Memory ContentsOptions Available at Access Level Commissioning Introduction ChecklistAlarm Circuits An Overview of the Commissioning ProcedurePre-Commissioning Wiring Check Commissioning ProcedureCommissioning Loops Final Commissioning Cause & Effect TestingAuxiliary Circuits Cause & Effect EditingTechnical Specifications Ii Other Relevant Documentation 1XX Iii Compatible Loop Devices and Panel Responses= LED = LED Is in fire Fault Data fault AV = 0 to Operation and is
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