K3NC Datasheet, PDF (6/23 Pages) Omron Electronics LLC – Up/Down Counting Meter

Connections
I Terminal Arrangement
Output unit
Terminal Numbers
Output
unit
Input
unit
18 19 20 21 22 23 24 25 26
10 11 12 13 14 15 16 17
123456789
Input unit
Note: Terminals 7 to 13 are connected internally.
Terminals 7 and 11 are mutually isolated.
Input Unit
NPN Inputs
External
sensor 10
power
supply (+)
Input A ¹
Input B ₂
External
sensor ¹¹
power
supply (−)
+12 V
+12 V
590 Ω
820 Ω
+12 V
GND
590 Ω
820 Ω
GND
NPN Open Collector Output
(NPN Linear 2-wire Output)
Voltage Pulse Inputs
+12 V
Input A 3
590 Ω
820 Ω
10 k Ω
GND
+12 V
Input B 4
11
590 Ω
820 Ω
10 k Ω
GND
Contact Output
PNP-input Models
External
sensor
power
supply
(+)10
Input A 1
+12 V
820 Ω
590 Ω
+12 V
Input B 2
GND
820 Ω
590 Ω
External
sensor
power
11
supply (−)
GND
GND
Voltage Output
Input resistance: 10 kΩ
PNP Open Collector Output
10 11
1
+12 V _INA
234
INB
0V
10 11
1
INA
234
INB GND
Contact
+12V
10 11
1234
INA INB
0V
+12V
NPN output sensor
Note: When the contact is short-
circuited, a current of approxi-
mately 13 mA will flow at a volt-
age of approximately 12 V.
Voltage pulse output sensor
Note: Connect the + side of the NPN
linear 2-wire input to terminal 1
and the − side to terminal 11.
Note: With voltage pulse input
not from a 3-wire sensor,
connect the + side to ter-
minal 3 and the − side to
terminal 11.
10 11
1
INA
234
INB
0V
PNP output sensor
C-136 Up/Down Counting Meter K3NC