Atsumi Electric NR90TD Manual de instrucciones de instalación - Página 4

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5
BEAM SPREAD
As the beam has spreads, an optical path is formed when it is reflected against the nearby (highly reflective) wall or the like,
thereby alarm output may be prevented even if the beam from the transmitter to the receiver is interrupted. When a multiple
number of detectors are installed, the beam from another detector may affect and cause malfunction.
The beam spread angle of this unit is about ±1°. Refer to the figure and table below to determine the installation position and
distance to be used when installing a multiple number of units.
Transmitter
6
WIRING
1. Terminal Arrangement
Power
(non-polarized)
DC10.5 - 28.0V
COM NC
Power
(non-polarized)
DC10.5 - 28.0V
2. WIRING LENGTH
Wire gauge
NR30TD
DC12V DC24V DC12V DC24V DC12V DC24V
AWG22 or φ0.65
220
AWG19 or φ0.90
430
AWG16 or φ1.20
760
AWG14 or φ1.60
1350
Each value in the above table represents the maximum wir-
ing distance (one way) when DC12V or DC24V power source
is used.
When installing 2 or more sets on one wire, the maximum
length is obtained by dividing the maximum wire length given
above by the number of sets installed.
When using a thicker than AWG19 or φ0.9 wire, use relays
for connection. It is not possible to connect directly to the
terminal inside of the detector.
A
T
T
Tamper (NC)
1b
DC30V, 0.1A
NO
T
T
Alarm output
Tamper (NC)
1c
1b
DC30V, 0.1A
DC30V, 0.1A
Maximum wiring distance (m)
NR-60TD
NR90TD
2000
200
1850
190
3800
400
3550
360
6850
700
6350
650
12000
1250
11270
1150
Receiver
B
3. EXAMPLE
Do not use aerial wiring, or malfunction may re-
sult.
1710
Be sure to cover outdoor wiring with pipes, or an
3300
electrical shock or failure may occur.
5900
Be sure to turn off the power during the wiring
10400
work, or an electrical shock or failure may occur.
4
Distance and (approximate) beam spread
Distance A
Beam spread width B
15m
30m
60m
90m
120m
180m
Controller
Power
Alarm input
output
(b contact point)
COM
NC
T
T
Receiver
COM
NC
T
T
Receiver
CAUTION
0.5m
1.0m
2.0m
3.0m
4.0m
6.0m
Tamper input
(b contact point)
T
T
Transmitter
T
T
Transmitter