CONTROL PANEL INSTALLATION
27
• Erratic module wiring may cause that the modules cannot be identified correctly,
what is signalled with message “The same address for two modules”.
• Too high resistance of cables connecting module to the control panel (large
distance, too small number of wires for a single signal) may cause that the
identification function does not see the module.
• When modules are being serviced by the control panel, LEDs at zone, output,
synthesizer modules (and other, which are provided with operation signalling for
service only) change their status.
Connection of detectors
CA-64 may operate with any detectors. Each control panel zone and zones of LCD
keypads and zone modules may operate in the following configurations:
• NC (normally closed),
• NO (normally open),
• EOL (single-parameter),
• 2EOL/NO (double-parameter, NO type detector),
• 2EOL/NC (double-parameter, NC type detector).
When a zone operates in a configuration with a single parameter (EOL), use 2,2 kΩ
resistor to close the detector circuit.
For double-parameter zones (2EOL), detector circuit is closed with two resistors 1,1
kΩ. 2EOL type zones allow the control panel to control detector status and detector
tamper switch simultaneously.
Any output with electronic protection (from OUT1 to OUT4) may be used to power
detectors. This output should be programmed as “POWER SUPPLY OUTPUT”. For
larger systems with buffer power packs with high capacity batteries, detectors are
powered from external power sources.
Figure 18 shows how to connect detectors to zones working in a double-parameter
configuration. Separation of detector power supply ground and ground of the signal
informing on status of detector connected to the control panel monitoring zone
eliminates the influence of the resistance of wires on the detector status detection.
Assuming that only one detector is connected to the cable and the cable length is not
big, the installation may be simplified by leading a common single wire for power
supply ground (GND) and signal ground (COM).
GND TAMP C NO +12
to detector
power supply circuit
COM
(zone n)
Zn
2 X 1,1k
Ω
COM
(power
(zone)
supply)
Fig. 18. Connection of a 2EOL detector to the control panel.
To Next Page
Loading...
