SRT1-
j
D08S
SRT1-
j
D08S
51
Characteristics
Communications power supply
voltage (see note 1)
14 to 26.4 VDC
Current consumption (see note 2)
50 mA max. at 24 VDC
Connection method
Multi-drop method and T-branch method
Secondary branches cannot be connected to T-branch lines.
Dielectric strength
500 VAC for 1 min (1-mA sensing current between insulated circuits)
Noise immunity
Power supply normal:
±
600 V for 10 minutes with a pulse width of 100 ns to 1
µ
s
Power supply common:
±
1,500 V for 10 minutes with a pulse width of 100 ns to 1
µ
s
Vibration resistance
10 to 55 Hz, 1.5-mm double amplitude
Shock resistance
Malfunction: 200 m/s
2
Destruction: 300 m/s
2
Mounting method
M4 screw mounting or 35-mm DIN track mounting
Mounting strength
No damage when 50 N pull load was applied for 10 s in all directions (except the DIN track
directions and a pulling force of 10 N
Terminal strength
No damage when 50 N pull load was applied for 10 s in all directions
Tighten each screw to a torque of 0.6 to 1.18 N
S
m
Ambient temperature
Operating:
0
°
C to 55
°
C (with no icing or condensation)
Storage:
–20
°
C to 65
°
C (with no icing or condensation)
Ambient humidity
Operating:
35% to 85%
Weight
SRT1-ID08S/OD08S: 100 g max., SRT1-ND08S: 80 g max.
Note:
1. The communications power supply voltage must be 20.4 to 26.4 VDC if the Unit is connected to 2-wired proximity sensors.
2. The above current consumption is a value with all the points turned OFF excluding the current consumption of the sensor connected
to the Sensor Terminal.
External Sensor Power Supply
Power supply voltage
13.5 to 26.4 VDC
Current consumption
500 mA max. in total
Nomenclature
SRT1-ID08S
SRT1-ND08S
CompoBus/S Terminals
Connect the CompoBus/S com-
munications cable.
Sensor Terminal
I/O Connectors
Connect the
cables from the
sensors here.
I/O Indicators
Indicate the status of each point.
(Lit when the input or output is ON.)
The SRT1-ID08S has 8 input indi-
cators and the SRT1-ND08S has 4
input indicators and 4 output indica-
tors.
DIP Switch
The DIP switch’s pins have the
following functions:
Pins 1 to 4: Node number setting
Pin 5: Reserved (Always OFF.)
Pin 6: Hold/clear outputs for com-
munications error
DIN Track Mounting Hook
Used when mounting the Unit
to a DIN track.
CompoBus/S Indicators
Indicate the operating status of the Slave and the status
of communications.
Mounting Screw Holes
Used when screwing the Unit to
a control panel.
Indicators
PWR
COMM
ERR
IN0 to 3
IN0 to 7
OUT0 to 3
Communications Power
Supply Terminals
Connect the communica-
tions power supply.