INIM SmartLoop Series, Руководство по установке

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30 Connections
Installation manual
Note:
Each loop output conductor must be fitted with a split ferrite core (included), as shown in the figure below.
Figure 18 - Attaching the split ferrite core to loop output cables
7.3.1 Loop terminals
LOOP1-O and LOOP2-O - loop output (paragraph 4.2 - [A4] and paragraph 4.2 - [A6] )
• Terminals “ + ” and “ – ”: connect all loop devices in parallel to these terminals, in accordance with the
specific device instructions.
• Earth terminal “ ”: connect the shield of the STP cable (2 pole) to this terminal.
Note:
Always leave one end of the shield disconnected.
LOOP1-I and LOOP2-I - loop input (paragraph 4.2 - [A3] and paragraph 4.2 - [A5] )
• Terminals “ + ” e “ – ”: connect the loop return loop wiring to these terminals.
These terminals allow the panel to check the loop integrity. In the event of a single interruption on the
circuit, the panel will communicate with the isolated trunk elements via these terminals.
• Earth terminal “ ”: connect the shield of the STP cable (2 pole) to this terminal.
Note:
Always leave one end of the shield disconnected.
7.3.2 Loop limitations
Use suitably sectioned shielded twisted cable for the loop wiring. Connect the shield to earth using the
earth terminals to one end of the loop only.
In order to allow the loop to function properly, you must section the device connection cable in such way
that any voltage drop along does not exceed 8 V. The following table shows the minimum dimensions for
the loop wiring with regard the distance between the loop output terminals and the most distant device:
up to 500 m
minimum 1 mm
2
up to 1000 m
minimum 1.5 mm
2
up to 1500 m
minimum 2 mm
2
up to 2000 m
minimum 2.5 mm
2