Fike 68-023, Руководство по эксплуатации продукта

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HIGH LEVEL INTERFACE
24 P/N 06-158 UL S3217
Rev 5, 02/2015 FM 3020297
5.7 CHEETAH / VESDA ALARM LEVELS
VESDA detectors have four alarm levels: ALERT, ACTION, FIRE-1, and FIRE-2. The levels convert from
VESDA to Cheetah as follows:
VESDA Cheetah
Alert PreAlarm 1
Action PreAlarm 2
Fire 1 Alarm
Fire 2 Alarm*
*Alarm can participate in Predischarge if Cheetah is programmed to do so.
The Cheetah PreAlarm states are non-latching. The Alarm state is latching. The VESDA may be configured
for latching or non-latching alarm levels. If VESDA is configured for latching, all levels coming from VESDA
will latch, including PreAlarms. If VESDA is configured for non-latching, then PreAlarms will restore when
levels drop, but Alarm levels (Fire 1 and Fire 2) are latched by Cheetah panel.
5.7.1 CHEETAH - ALERT LEVEL
This history message appears when a VESDA reaches the ALERT level:
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
A
A L E R T 0 . 0 3 5 % / 0 . 0 4 6 %
B
D E V I C E C U S T O M M E S S A G
C 0 4 : 1 7 : 2 6 P M 1 2 / 3 0 / 9 7
D
0 0 2 / 0 0 5 2 - 0 1 1 P 0 0 R 0 0
Exhibit 19: Cheetah – ALERT Level
A1-5: VESDA ALERT level activated.
A8-13: VESDA threshold for the ALERT level in %/ft units. This number has been rounded from 4 digits to
3.
A15-20: Current obscuration level reported by VESDA in %/ft units. This number has been rounded from 4
digits to 3.
B1-20: Custom message for this device.
C1-20: Time and date stamp for this event.
D1-3: Event number in current history list.
D5-7: Total number of current history events.
D9-13: Virtual address of VESDA device.
D16-17: Number of zones with active pre-discharge countdowns.
D19-20: Number of zones with active release states.
NOTE: If the VESDA does not reach the FIRE-1 level and is configured as non-latching for its pre-alarm
levels, then the history message when the ALERT level clears is:
1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0
A
A L E R T R E S T O R E
B
D E V I C E C U S T O M M E S S A G
C 0 4 : 2 0 : 0 0 P M 1 2 / 3 0 / 9 7
D
0 0 2 / 0 0 5 2 - 0 1 1 P 0 0 R 0 0
Exhibit 20: Cheetah – ALERT Restored