Honeywell ESSER IQ8Control C Installation Instruction page 67

Mode of loop operation
The esserbus ® /esserbus
use of zone isolators allows you to combine ring and spur loops as well as divide the loop into 127 detector zones
with a total of 127 loop devices. All esserbus
wire) in the loop. If a short circuit occurs, only the faulty element between two zone isolators will be disconnected.
Even during this malfunction all other loop devices remain operational.
On the esserbus ® it is possible to group special fire detectors and manual call points or manual release devices
in separate detector zones. You may also simultaneously operate esserbus
zones on the loop. The esserbus
as loop devices on the esserbus
Commissioning a functional loop requires use of the service PC and the software tools 8000 This Service software
initiates an automatic wiring recognition function on the loop and addresses all esserbus
automatically. There is no longer any need to set addresses manually. For further information on programming,
please refer the online help for the service- and programming software tools 8000.
To indicate a data communication between FACP and detectors the corresponding LED on the basic module
flashes. The green LED of the IQ8Quad fire detector flashes each 30 seconds.
Operation of zone isolators
A short circuit on the loop will cause the cut-off relays to open in the relevant zone isolator and disconnect the
faulty segment (e.g., a detector zone) from the loop. The disconnected detectors will be shown on the display
with trouble message Com.trbl (communication trouble). All other loop devices on the loop, as well as the fire
®
detectors or esserbus
isolators do not work on an open circuit, e.g. break in wire. Bi-directional ring interrogation keeps all loop devices
on the loop functional.
Use of zone isolators
1. Always upstream of the point where the loop crosses into another fire compartment
2. On changing from special fire detectors to manual call points (and vice versa)
3. At least in the 32nd fire detector of a detector zone
With the built-in battery monitor module, the IQ8Control FACP now satisfies the expanded
§
requirements of EN 54-4/A2, as well as the amended requirements for the display and operating
concept according to EN 54-2.
In accordance with the VdS device approval of the IQ8Control FACP, the emergency operation fire
function now replaces a redundant CPU in accordance with VDE 0833-2 for systems with more than
512 detectors or a monitoring area up to 48,000 m². This integrated emergency redundancy also
allows further processing of an alarm in the essernet
without the need for additional hardware or software.
FB 798951.10.GB0 / 04.15
® PLus is a monitored two-wire loop fed from two sides and exhibiting loop topology. The
® loop devices remain functional in the event of interruption (break in
® transponders are decentralised input/output modules capable of being installed
®
.
transponders whose zone isolator has triggered, will remain operational. The zone
Fire Alarm Control Panel IQ8Control C / M
®
transponders in separate detector
®
in event of the failure of a central processor
® loop devices
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