Nice M3BAR Installierungs-Und Gebrauchsanleitungen Und Hinweise Seite 19

CA BLES OF THE LOOP MUST BE TWISTED AT LEAST 20 TIMES A
METER AND THERE MUST BE NO JOINTS . Should it be necessary to
extend the cable, weld the conductors and seal them with the thermo-shrink-
able sheath . The length of the twisted cable must be less than 20 m .
01. After determining the size of the loop, dig a groove in the floor of a width =
8 mm and a depth = 30-50 mm (fig. H);
02. Clean the groove and insert the loop, trying to compact it in a way to avoid
it moving;
03. Carry out the number of turns of the loop depending on the perimeter, as
indicated in Table 17: use a 1 .5 mm
04. Before sealing the groove, check that the value of the inductive loop is
between 100 and 400 uH or, through the Oview programmer, check that
the value of the measured frequency (Parameter "Loop Frequency") is
between 30 and 90 KHz;
Function
Loop 1 sensitivity
Loop 2 sensitivity
Loop power supply
Loop 1 active
Loop 2 active
Loop 1 operating mode
Loop 2 operating mode
Loop 1 permanence time
Loop 2 permanence time
Output function 1, 2, 3:
Active out (1,2,3) for loop 1
Output function 1, 2, 3:
Active out (1,2,3) for loop 2
Calibration [also carried out upon start-up]
Loop 1 activation mode*:
Loop 1 time
Loop 2 activation mode*:
Loop 2 time
Loop 1 frequency display
Loop 2 frequency display
TABLE 16
1
loop
relay
3
loop
relay
5
loop
relay
Perimeter of the loop
2 – 4 m
4 – 7 m
7 – 12 m
more than 12 m
Note – If in the loop positioning place, below the floor, there are some metal
reinforcements, the inductivity of the loop is reduced . In this case, it is nec-
essary to add 2 turns to the twisting of the cable
unipolar isolated copper cable (fig. H);
2
Values
10 – 100%
10 – 100%
on – off
on – off
on – off
selectable
selectable
2 – 20 = always
2 – 20 = always
selectable
selectable
on – off
1 – 5
0 – 25 s
1 – 5
0 – 25 s
0 – 100000
0 – 100000
2
4
loop
relay
TABLE 17
Number of turns to be carried out
6
5
4
3
05. Cover the loop with sand to protect it and then seal the groove with bitu-
men or resin for outdoor use (fig. H) . Important! – The temperature of the
sealant must not exceed the maximum temperature admitted for the isola-
tion of the cable, otherwise a loss in isolation towards the earth may occur .
06. The electric cables must be connected to the Loop1 (fig. I) and Loop2
(fig. L) terminals . The Loop2 terminal presents 2 connection possibilities
(fig. L); based on the type of connection used, it varies the working fre-
quency of the loop .
Important! – If Loop1 is positioned near Loop2 and both work at the
same frequency (or almost), interference could be generated; in this case,
it is necessary to change the connection to Loop2 terminal .
TABLE 15
G
loop
relay
Default
90%
90%
on
on
on
open
open
20 = always
20 = always
off
off
1
2s
1
2s
-
-
approximately 0,8 m
45°
Direction of travel
Route
0,2 m
English – 17