Table of Contents
Advertisement
5.0 System Operation
5. 1
Operating Modes
The D7024 FACP system operates in one of three
modes; Alarm, Trouble, or Normal.
5. 1 . 1
Alarm
When an alarm occurs, FIRE ALARM or a similar
messages (depending on the type of alarm) appears in
the top line of the display. The display overrides the
other system displays. The display's second line shows
the point number in alarm, alternating with the
programmed description for the affected point. If more
than one alarm (or other off-normal condition) is active,
they appear on the display's second line, one after
another. The built-in sounder emits a steady tone, and
outputs programmed to activate with the current alarm
condition(s) activate.
When the control panel is not scanning the inputs, such
as during smoke power reset, alarm verification delay,
or on-site programming, the Trouble LED flashes to
indicate this condition.
Fire Silence and Reset
When you hear a fire alarm, exit the premises
immediately. Do not enter the premises unless
accompanied by the appropriate Emergency Services
personnel or after you have permission. When it is
determined there is no fire, you can silence the horns
and bells to further investigate the devices that initiated
the alarm. You can also reset the system, returning it to
normal operation.
Before using the [RESET] key, determine
which smoke detector alarmed so the moni-
toring company can verify its operation.
If the system is configured for alarm silencing,
[SILENCE] turns off the horns and bells, but does not
reset the alarm status and does not return the tripped
input to normal service. Any detectors tripped remain in
alarm and can be checked (usually by a device LED) to
determine which detector caused the alarm. When the
detectors causing the alarm are identified, reset the
system to return it to normal service.
The [RESET] key clears the system alarm status and
briefly turns off power to the detectors to reset them.
This command is required after a fire alarm affecting a
point programmed for latching operation (normal
configuration). Latching is also needed to reset a Class
"A", Style 6 Multiplex SLC wiring fault troubles (future),
and reset trouble indications from the D7014 Class "A"
Zone Converters.
Bosch | 7/05 | 31499J
D7024 | Operation and Installation Guide | 5.0 System Operation
5. 1 .2
Trouble
When a trouble condition occurs (such as wiring for a
point is cut, AC power fails, and so on), the sounder
activates with a beep every 10 sec. The Trouble LED
lights and the LCD shows SYSTEM TROUBLE, followed
by a description of the trouble condition. The system
can diagnose and show a variety of trouble conditions,
including those affecting the input points, NACs, power,
battery, system grounding, and internal operations of the
FACP. Immediately notify your installing company if
the System Trouble message appears.
Press [SILENCE] to silence the system trouble beep.
When problems are remedied, press [RESET] to clear
the System Trouble.
To prevent intermittent system faults (such as ground
fault or initiating loop open fault) from interfering with
central station operations, the control panel limits
reporting to 100 Trouble Reports in 24 h. When the
limit is exceeded, the control panel transmits a Data
Lost Report and inhibits additional Trouble Reports and
Automatic Test Reports. Non-trouble Reports and Off-
Normal at Test Reports are not limited. The 24-h period
resets at 9:00 a.m. or when a Manual Test Report is sent.
Refer to Refer to Section 12.0 Appendix C: Fire
Communicator Reporting Summary on page 67 for trouble
explanations.
The software incorporates a system supervisor function
to automatically supervise the system software for
proper operation. If there is a system failure, a CPU
Fault message appears, and a description of the failure is
recorded (optionally) in the History Buffer. History
buffer recording for CPU faults can be enabled by
programming Output Zone D of onboard Relay 2 to
Zone 51 (unused). The History Buffer message, if
enabled, appears as CPUFLTxxx, where xxx is an error
code. If CPU FAULT appears, contact Bosch Security
Systems Technical Support and report the History Buffer
code, along with a description of the operations that
caused the fault.
Unusual conditions during programming and debugging
can cause a CPU FLT message in the History Buffer. If
this appears when the control panel is in service, report
it to Technical Service.
Off-Normal Displays
Control panel alarms and problems are indicated by a
message appearing on the top line of the display.
Contact your installing company if problems persist.
Refer to Table 10 on page 22 for a description of these
messages.
21
Advertisement
Table of Contents
