Wheelock MT4-12-LS Guia de Resolução de Problemas descarregar pdf (Página 23)

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Section 6. SYSTEM ZONES

This section provides the following information:

• General information about system zones

• System zone assignments

General Information

System zones may be comprised of the following:

• Zones which monitor various device connections, as well as earth ground

faults

• Keypad emergency zones, which may be assigned 24-hr. zone responses that

are activated

• Zones which have a special purpose such as to bypass a relay, or to assign a

zone descriptor to a relay

System Zone Assignments

Zone 6: Bell Supervision – monitors the bell circuit output for open and

short circuit faults. Defaults to zone response type 19 (24-Hr.

Trouble) .

Zone 7: Keypad emergency – activated by pressing the keypad [B] key or by

simultaneously pressing the[*] and [#] keys. Keys must be held for

two seconds.

Zone 10: Earth Ground Supervision – monitors the control's field wiring for

earth ground faults. Defaults to zone response type 19 (24-Hr.

Trouble). Supervision must be enabled (using response type 19) for

fire installations.

Zone 11: Main Dialer Supervision – monitors the main dialer telephone

connection for line faults. Defaults to zone response type 19 (24-Hr.

Trouble).

Zone 12: Back-up Dialer Supervision – monitors the backup dialer telephone

connection for line faults. Defaults to zone response type 19 (24-Hr.

Trouble).

Zone13: Auxiliary Relay Disable – represents the auxiliary relay for

purposes of allowing this relay to be bypassed. Does not supervise

anything and does not get assigned a zone response type.

Zone 95: Keypad Emergency – activated by pressing the keypad [A] key or by

simultaneously pressing the [1] and [*] keys. Keys must be held for

two seconds.

Zone 96: Keypad Emergency – activated by pressing the keypad [C] or by

simultaneously pressing and holding the [3] and [#] keys for 2

seconds.

System zones are programmed through *56 Zone Programming Mode.

The default values for these zones will meet the requirements for most

installations.

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