Embedded logic - operation – Det-Tronics EQP Fire and Gas Detection/Releasing System User Manual

Page 94

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14.1

95-8533

4-17

EMBEDDED LOGIC – OPERATION

Supervisory Condition:

The supervisory input on

channel 3 has no embedded logic function and is

passed on as information only to the EQP Controller

where it is displayed as a supervisory fault.

Alarm Condition - Single Zone Mode:

Upon receipt

of an alarm from an activated detector on IPM channel

4 or 5 OR activation of the manual station, channel 2:

Signal circuit devices are activated per the software

selected signaling circuit configuration described

earlier – Bell Circuit Channel 6.

Programmed release time delay activated.

Release output(s) activated.

Operation of Abort: Discharge is aborted ONLY

when alarm is from a detector, and abort is

activated during programmed release time delay.

Abort sequence is dependent on the abort mode

selection as described earlier.

Alarm Condition – Two Zone Mode (cross zoned):

Upon receipt of an alarm from one activated detector

in one zone.

Signal circuit devices are activated per the software

selected signaling circuit configuration, two zone

mode, one zone in alarm, as described earlier –

Bell Circuit Channel 6.

Second Alarm Condition: Upon receipt of an alarm

from a second activated detector in the other zone.

Signal circuit devices are activated per the software

selected signaling circuit configuration, two zone

mode, two zones in alarm, as described earlier –

Bell Circuit Channel 6.

Programmed release time delay activated.

Release output(s) activated.

Manual Alarm Condition – Two Zone Mode (cross
zoned):

Upon receipt of a manual alarm from Channel 2:

Signal circuit devices are activated per the software

selected signaling circuit configuration, two zone

mode, two zones in alarm, as described earlier –

Bell Circuit Channel 6.

Programmed release time delay activated.

Release output(s) activated.

Module Reset:

After completion of the release

output(s) timer, if no alarm condition is present on

channel 2 (Manual Release) then the module can be

reset via soft command on the S3 Module Point

Display or if the EQP Controller is offline, by holding

the Abort input, Channel 1, active momentarily.

When reset, the IPM will de-energize the two detector

circuits, channels 4 and 5, for two seconds to reset

the smoke detectors. Any latched outputs will also be

reset.

Release Outputs:

When commanded to release, the

release output(s) will energize for the configured time

and then de-energize.

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