Omron B7A Manual page 89

B7A
Specifications
Characteristics
General
Item
Communications method
Transmission distance (see note 1)
I/O delay time
Minimum input time (see note 2)
Operating voltage range
Insulation resistance
Dielectric strength
Noise immunity
Vibration resistance
Shock resistance
Ambient temperature
Ambient humidity
Note: 1. The transmission distance values stated in this table are possible if the Input or Output Link Terminal is connected to an independent
power supply. If a single power supply is connected to the Input or Output Link Terminal, the supply voltage must be 24 VDC 10%,
in which case the transmission distance is 100 m maximum. Refer to Power Supply on page 89 for details.
2. The minimum input time is required for the B7A to read an input signal.
Input Models
Item
Compatible inputs Switches, three-wire NPN sensors (see note 1)
Input logic Active low
Current consumption 80 mA max. with all input terminals ON
(see note 2)
Input voltage range 0 VDC to supply voltage
Operating voltage 12 to 24 VDC
range
Input current range –4.4 to –1.1 mA/point (current flowing from input terminals)
Minimum input time 16 ms
(see note 3)
ON/OFF threshold No-contact input:
Contact input:
Mounting strength No damage when 49-N pull is applied for 1 min each in all directions
(except direction of DIN track)
Terminal strength No damage when 49-N pull is applied for 1 min each in all directions
Tightening torque 0.78 to 1.18 N m
Weight Approx. 100 g
Note: 1. The polarity of the B7A-TS10S1's Bj terminal is negative. Therefore, supply power to the three-wire sensor from the positive pow-
er supply terminal or a power supply.
2. Consumption when all 10 points are ON. Excludes external sensor current for Input Terminals.
3. The minimum input time is required for the B7A to read an input signal.
Unidirectional, time-division multiplex
500 m max.
Typical: 19.2 ms; 31 ms max.
16 ms
12 to 24 VDC (10.8 to 26.4 VDC) (see note 1)
100 MΩ min. (500 V) between each terminal and external parts
1,000 VAC, 50/60 Hz for 1 min between each terminal and external parts
Noise level: 1.5 kV; pulse width: 100 ns to 1 µs (on transmission line due to coupling)
10 to 55 Hz, 1.5-mm double amplitude
2
300 m/s
Operating: –10 to 55 C (with no icing)
Storage: –25 to 65 C (with no icing)
Operating: 35% to 85% (with no condensation)
Screw terminal models
B7A-T10S1
ON voltage:
OFF voltage:
ON discrimination resistance:
OFF discrimination resistance: 5 kΩ min.
Normal speed
B7A-T10S3
1.6 V max.
5.5 V min.
140 Ω max.
Modular models
B7A-T10M2
TTLs, switches
Active high
40 mA max. with all input terminals
ON
0 to 5 VDC 10%
1.7 to 2.2 mA/point
ON voltage: 2.2 V min.
OFF voltage: 0.8 V max.
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Approx. 12 g
B7A
87