287
Sensor Terminals
Section 5-5
5-5
Sensor Terminals
5-5-1
SRT
@
-
@
D08S Sensor Terminals with 8 Transistor Inputs or 4
Transistor Inputs and 4 Transistor Outputs
Specifications
The following tables show the ratings and I/O specifications for the SRT
@
-
@
D08S
Ratings
Note
1.
Maintain a voltage of 20.4 to 26.4 V DC when using a 2-wired Proximity
Sensor.
2.
This is the current consumption when all contacts are OFF, not including
the current consumption of the sensors. Be sure to take the sensor’s cur-
rent into account when supplying power from a CompoBus/S cable. The
maximum current consumption of the Sensor Terminal can be calculated
from the following equation:
Max. current consumption = current consumption of the Sensor Terminal
+ ({input c output c sensor’s current consumption}
×
the
number of sensors being used)
Item
Specification
Models
SRT1-ID08S
SRT1-ND08S
SRT2-ID08S
SRT2-ND08S
I/O points
SRT
@
-ID08S: 8 input points
SRT
@
-ND08S: 4 input and 4 output points
Communications
mode
SRT1-
@
D08S: High-speed Communications Mode
SRT2-
@
D08S: High-speed Communications Mode or
Long-distance Communications Mode
Power supply type
Network power supply
Communications
power supply voltage
14 to 26.4 V DC (see note 1)
(Power can be supplied from the communications cable)
Current consumption
(see note 2)
Communications: 50 mA max. at 24 V DC
Noise immunity
±
1.5 kVp-p with a pulse width of 0.1 to 1
µ
s and a rise time of
1 ns (via impulse noise simulator)
Vibration resistance
10 to 55 Hz, 1.0-mm double amplitude
Shock resistance
200 m/s
2
Dielectric strength
500 V AC (between insulated circuits)
Ambient temperature
Operating: 0 to 55
°
C
Storage: –20 to 65
°
C
Ambient humidity
Operating: 35% to 85% (with no condensation)
Storage: 25% to 85% (with no condensation)
Operating environ-
ment
No corrosive gases
Mounting method
M4 screws or 35-mm DIN track mounting
Mounting strength
50 N
Track direction: 10 N • m
Terminal strength
Pulling: 50 N
Tightening: 0.6 to 1.18 N • m
Node number settings
The node number is set on a DIP switch.
(Set the node number before turning ON the Slave.)
Weight
SRT
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-ID08S: 100 g max.
SRT
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-ND08S: 80 g max.