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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 current + output current + 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 µs 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@-ID08S: 100 g max.
SRT@-ND08S: 80 g max.
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