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Connections
■ Terminal Arrangement
Output unit
Input unit
Input Unit
12 VDC
80 mA
Signal input terminal
Note:
Check the power supply specifications of the
model used before connecting the power supply.
Recommended 24VDC power supply;
eg. OMRON S8VS
NPN Inputs
External
+12 V
sensor
10
+12 V
power
supply (+)
590
820
1
Input A
+12 V
GND
590
820
Input B
2
External
11
sensor
GND
power
supply ( )
NPN Open Collector Output
(NPN Linear 2-wire Output)
10
11
1
2
3
4
+12 V
INA
INB
0 V
NPN output sensor
Note: Connect the + side of the NPN
linear 2-wire input to terminal 1
and the
side to terminal 11.
B-198
Period Meter
When inputting the external control signals through the open
collector:
When the external signal input is short-circuited, a voltage of
approximately 5 V will be applied to between the terminals 5 to
7 and the COM terminal, and a current of approximately 18 mA
100 to 240 VAC
(nominal value) will flow.
or 12 to 24 VDC
Voltage Pulse Inputs
590
820
10 k
3
Input A
GND
590
820
10 k
Input B
4
GND
11
Contact Output
10
11
1
2
3
INA
INB
Contact
Note: When the contact is short-
circuited, a current of approxi-
mately 13 mA will flow at a volt-
age of approximately 12 V.
K3NP
Terminal Numbers
Output
18 19 20 21 22 23 24 25 26
unit
10 11 12 13 14 15 16 17
Input
unit
1
2
Note: Terminals 7 to 13 are connected internally.
Terminals 7 and 11 are mutually isolated.
Transistor Inputs:
ON: Residual voltage must be 3 V max.
OFF: Leakage current must be 1.5 mA max.
The switching capacity must be 20 mA or greater.
PNP-input Models
External
+12 V
sensor
power
10
supply (+)
1
Input A
+12 V
Input B
2
External
sensor
11
power
supply ( )
Voltage Output
Input resistance: 10 k
10
11
+12V
1
2
4
INA INB
GND
Voltage pulse output sensor
Note: With voltage pulse input
not from a 3-wire sensor,
connect the + side to ter-
minal 3 and the
terminal 11.
3
4
5
6
7
8
9
+12 V
820
+12 V
GND
820
GND
GND
PNP Open Collector Output
10
1
3
4
+12V
INA
0 V
PNP output sensor
side to
11
2
3
4
INB
0 V
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