Omron B7A Manual page 20

B7A/B7AS
Item
Compatible inputs Switches, two-wire sensors with DC
output, 3-wire PNP sensors
Input logic Active high
I/O delay time B7A-T6C1: normal speed (typical
19.2 ms);
B7A-T6C6: high speed (typical
3 ms)
Current consumption 120 mA max. with all input terminals
(see note 3) ON
Operating voltage range 12 to 24 VDC
Input voltage range 0 VDC to supply voltage
Input current range 3 to 6 mA/point
Minimum input time B7A-T6C1: 16 ms; B7A-T6C6:
(see note 4) 2.4 ms
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 in direction of DIN
track)
Terminal strength No damage when 49-N pull is
applied each in all directions
Tightening torque 0.78 to 1.18 N m
Weight Approx. 160 g
Note: 1. If there is a possibility of noise interference from the power supply, input, and/or output lines, add appropriate noise protection cir-
cuits. Refer to Noise Protection Circuits on page 101 for details.
2. A 3-wire NPN sensor with a residual voltage of 0.8 V maximum and a built-in collector load can be used. In this case, however, when
the output transistor of the sensor is ON, the B7A will be OFF.
3. Consumption when all 16 points are ON. Excludes external sensor current for Input Terminals.
4. The minimum input time is required for the B7A to read an input signal.
Output Models
Item
Output configuration NPN open collector
I/O delay time B7Aj-R6jj1: normal speed (typical 19.2 ms); B7Aj-R6jj6: high speed (typical 3 ms)
Error processing B7Aj-R6j1j: HOLD; B7Aj-R6j3j: LOAD OFF
Current consumption 80 mA max. with all output
(see note) terminals ON
Power supply voltage 12 to 24 VDC
Rated load voltage 5 to 24 VDC
Output residual voltage 0.8 V max.
Output current Sync. current, 100 mA max./ point
Mounting strength No damage when 49-N pull is applied for 1 min each in all directions (except in direction of DIN track)
Terminal strength No damage when 49-N pull is applied each in all directions (except in direction of DIN track)
Tightening torque 0.78 to 1.18 N m
Weight Approx. 160 g
Note: Consumption when all 16 points are ON. Excludes external load current and error load current for Output Terminals.
18
Screw terminal models
B7A-T6C1/-T6C6
ON voltage: –4 V max.
OFF voltage: –6 V min.
ON discrimination resistance:
660 Ω max.
OFF discrimination resistance:
2 kΩ min.
B7A-R6B11/-R6B16/
-R6B31/-R6B36
Modular models
B7A-T6D2/-T6D7
TTLs, switches, 3-wire PNP
sensors (see note 2)
B7A-T6D2: normal speed
(typical 19.2 ms);
B7A-T6D7: high speed (typical
3 ms)
60 mA max. with all input terminals ON
0.2 to 2 mA/point (input voltage:
5 to 24 VDC)
B7A-T6D2: 16 ms; B7A-T6D7:
2.4 ms
ON voltage: 2.2 V min.
OFF voltage: 0.8 V max.
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Approx. 23 g
Screw terminal models (100 mA/point)
B7AS-R6B11/-R6B16/
-R6B31/-R6B36
120 mA max. with all output
terminals ON
Approx. 130 g
B7A/B7AS
Compact modular models
B7A-T6D7-D
TTLs, switches, 3-wire PNP
sensors
Active low
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–1.1 to –0.5 mA/point (flowing
out from terminals)
2.4 ms
ON voltage: 3 V max.
OFF voltage: 6 V max.
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Approx. 25 g
B7A-R6F11/-R6F16/
-R6F31/-R6F36
PNP open collector
80 mA max. with all output terminals
ON
Source current, 100 mA max./ point
Approx. 160 g