B7A/B7AS
B7A/B7AS
18
Item
Screw terminal models
Modular models
Compact modular models
B7A-T6C1/-T6C6
B7A-T6D2/-T6D7
B7A-T6D7-D
Compatible inputs
Switches, two-wire sensors with DC
output, 3-wire PNP sensors
TTLs, switches, 3-wire PNP
sensors (see note 2)
TTLs, switches, 3-wire PNP
sensors
Input logic
Active high
Active low
I/O delay time
B7A-T6C1: normal speed (typical
19.2 ms);
B7A-T6C6: high speed (typical
3 ms)
B7A-T6D2: normal speed
(typical 19.2 ms);
B7A-T6D7: high speed (typical
3 ms)
---
Current consumption
(see note 3)
120 mA max. with all input terminals
ON
60 mA max. with all input terminals ON
Operating voltage range
12 to 24 VDC
---
Input voltage range
0 VDC to supply voltage
Input current range
3 to 6 mA/point
0.2 to 2 mA/point (input voltage:
5 to 24 VDC)
–1.1 to –0.5 mA/point (flowing
out from terminals)
Minimum input time
(see note 4)
B7A-T6C1: 16 ms; B7A-T6C6:
2.4 ms
B7A-T6D2: 16 ms; B7A-T6D7:
2.4 ms
2.4 ms
ON/OFF threshold
No-contact input:
ON voltage:
–4 V max.
OFF voltage: –6 V min.
Contact input:
ON discrimination resistance:
660
Ω
max.
OFF discrimination resistance:
2 k
Ω
min.
ON voltage: 2.2 V min.
OFF voltage: 0.8 V max.
ON voltage: 3 V max.
OFF voltage: 6 V max.
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
S
m
---
---
Weight
Approx. 160 g
Approx. 23 g
Approx. 25 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
Screw terminal models (100 mA/point)
B7A-R6B11/-R6B16/
-R6B31/-R6B36
B7AS-R6B11/-R6B16/
-R6B31/-R6B36
B7A-R6F11/-R6F16/
-R6F31/-R6F36
Output configuration
NPN open collector
PNP open collector
I/O delay time
B7A
j
-R6
jj
1: normal speed (typical 19.2 ms); B7A
j
-R6
jj
6: high speed (typical 3 ms)
Error processing
B7A
j
-R6
j
1
j
: HOLD; B7A
j
-R6
j
3
j
: LOAD OFF
Current consumption
(see note)
80 mA max. with all output
terminals ON
120 mA max. with all output
terminals ON
80 mA max. with all output 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
Source 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
S
m
Weight
Approx. 160 g
Approx. 130 g
Approx. 160 g
Note:
Consumption when all 16 points are ON. Excludes external load current and error load current for Output Terminals.