Omron B7A Manual page 69

B7AH
Specifications
Characteristics
General
Communications method
Transmission distance (See note 1.)
I/O delay time
Minimum input time (See note 3.)
Operating voltage range
Insulation resistance
Dielectric strength
Noise immunity (See note 4.)
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 of a normal-speed model is 100 m maximum and that of a high-speed model is 50 m maxi-
mum. Refer to Power Supply on page 68 for details.
2. A shielded transmission cable or a VCTF cable with a thickness of 0.75 mm
VCTF cable is used, however, the transmission distance will be 10 m maximum regardless of whether or not independent power
supplies for the Input and the Output Link Terminals are used.
3. The minimum input time is required for the B7AH to read an input signal.
4. This is the value for the inductive noise on the transmission line measured using a noise tester. For high-speed models, it is the
value without the shield line connected to ground.
I/O Specifications
Input
Item
Input configuration
Input logic
I/O delay time
Current consumption (see note)
Input pu
Input voltage
Input current
Minimum input time
ON/OFF
ON voltage
threshold
OFF voltage
Weight
Normal speed
Unidirectional, time-division multiplex
500 m max.
Typical: 19.2 ms; 31 ms max.
16 ms
Transmission circuit (+V, –V): 12 to 24 VDC (10.8 to 26.4 VDC) (See note 1.)
Logic circuit (VDD, VSS):
20 MΩ min. (250 V) between each pin and external parts
250 VAC, 50/60 Hz, 1 min between each pin 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 or condensation)
Storage: –25 to 65 C (with no icing or condensation)
Operating: 35% to 85%
CMOS input
Active high
B7AH-T6D3: Normal speed (typical: 19.2 ms); B7AH-T6D8: High speed (typical: 3 ms)
Logic circuit: 20 mA max.; Transmission circuit: 30 mA max.
0 to VDD (V)
0.04 to 0.06 mA/point
B7AH-T6D3: 16 ms
B7AH-T6D8: 2.4 ms
VDD(V) 0.7 min.
(3.15 V min. for VDD = 4.5 V; 3.5 V min. for VDD = 5 V; 3.85 V min. for VDD = 5.5 V)
VDD (V) 0.3 min.
(1.35 V min. for VDD = 4.5 V; 1.5 V min. for VDD = 5 V; 1.65 V min. for VDD = 5.5 V)
Approx. 10 g
100 m max. (See note 2.)
Typical: 3 ms; 5 ms max.
2.4 ms
5 VDC 10% (4.5 to 5.5 VDC)
2
minimum must be used for signal transmission. If the
B7AH-T6D3, B7AH-T6D8
B7AH
High speed
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