Omron B7A Manual page 70

B7AH
Output
Item
Output configuration
I/O delay time
Current consumption (see note)
Output Output
H level
voltage g
L level
Ou pu Output H level
current t
L level
Output logic
Error processing o p ocess g
Weight
Note: Consumption when all 16 points are ON. Excludes output current.
Operation
Noise and Miswiring Protection Circuits
Power supply noise protection circuit
Include the power supply noise protection circuit shown below
if there is a possibility of noise interference between +V and
–V (12 to 24-V power supply pins).
Coil for removing common
mode noise 2 mH
Diode for preventing
reverse connection
Power
50 V
supply
0.1 µF
12 to
24 VDC
Include the power supply noise protection circuit shown below
if there is a possibility of noise interference between VDD and
VSS (5-V power supply pins).
Diode for preventing
reverse connection 1/6W 1Ω
Power supply +
5 VDC –
Power Supply
The B7AH is available in both normal-speed models and high-speed models. The recommended cable lengths and transmission distances are
different for the 2 types. If a single power supply is connected to the Input or Output Link Terminal, (i.e., on the input side or output side), there are
restrictions on the current that can flow along the power line.
68
CMOS output
B7AH-R6D53: Normal speed (typical: 19.2 ms); B7AH-R6D58: High speed (typical: 3 ms)
Logic circuit: 20 mA max.; Transmission circuit: 30 mA max.
VDD (V) – 0.4 V min.
(4.1 V min. for VDD = 4.5 V; 4.6 V min. for VDD = 5 V; 5.1 V min. for VDD = 5.5 V)
0.4 V max.
Sourcing current, 2 mA/point
Sinking current, 2 mA/point
Active high (positive logic): N/P pins open
Operation: Input ON
Input OFF
Active low (negative logic): N/P pins connected to VDD (5 V)
Operation: Input ON
Input OFF
LOAD OFF (output interrupted): H/L pins open
HOLD (output held): H/L pins connected to VDD (5 V)
Approx. 10 g
B7AH
+V
50 V
0.1 µF
+
50 V 35 V
0.1 µF – 10 µF
50 V
0.1 µF
–V
GND
B7AH
VDD
35 V 10 µF
VSS
B7AH-R6D53, B7AH-R6D58
Output ON
Output OFF
Output OFF
Output ON
SIG pin miswiring protection
circuit
Include the circuit shown below if
there is a possibility of miswiring
between the SIG pin and the +V pin
or VDD pin. (Connect to the SIG pin
of B7AH input models.)
B7AH input model
PTH (thermistor)
Resistance: 47 Ω
Maximum current: 0.5 A
SIG
B7AH
Input and output pin
protection circuits
Include the circuit shown below
if there is a possibility of noise
or static electricity affecting
input pins.
B7AH input model
IN
00 to 15
Zener diode
10 V, 1 W
VSS
Include the circuit shown below
if there is a possibility of noise or
static electricity affecting output
pins.
B7AH output model
OUT
00 to 15,
ERR
Zener diode
10 V, 1 W
VSS