Cofem COMPACT LYON, Руководство пользователя

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Digital fire detection control panel
LYON
FIRE PROTECTION MANUFACTURER
Ctra. de Molins de Rei a Rubí, Km. 8,4 - 08191 RUBÍ (Barcelona) ESPAÑA.
Tlf.: +34 935 862 690 - Fax:+34 936 999 261 - cofem@cofem.com - www.cofem.com
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loops 1 and 2 will be plugged into the lower connector of the loop controller, and the driver of
loops 3 and 4 will be connected to the upper connector of the loop controller.
In a single box we will be able to connect 2 loop controllers and their 4 corresponding loop
drivers. Therefore for configurations in excess of 8 loops we will need two boxes.
Figure 1. Layout of circuits in the control panel
1.5. - Loop Elements Capacity
The number of devices that it is possible to connect to the loop is calculated of precise form by the software
of loop elements capacity calculation.
When it is not feasible to use the previous software, it can be used next table to obtain approximate capacity,
which, in a general way, gives values under the real performances of the system.
For this motive, it is necessary to check real capacity of the system by means of the loop elements capacity
calculation software when results of using table approximation doesn’t allow to satisfy the installation
necessities, as the real capacity of the system can be higher than expected by the tables.
To calculate the capacity of the system, it should take into account two parameters: The number equivalent
elements connected in the loop (shown in the table depending on cable length, cable section and control
panel model) and number of logic relays (also shown in the table).
The system will work properly when it meets the limits establieshed in the device limit per control panel.
For the system, the cable length is the length of the loop cable from the nearest element in the loop to the
control panel, measure to the other side of the control panel loop input/output. That means length cable is
always less that the cable length loop as it is shown in the figure.
CPU
Switching Power Supply
Power Supply
Back Panel
Loop
Controller
Loop
Driver
REMOTE
Card
US
B
PS
2