Omron H7EC Manual page 130

Connections
I Terminal Arrangement
Output unit
Input unit
Input Unit
NPN Inputs
External
sensor +12 V
10 +12 V
power
supply (+)
590 Ω
820 Ω
1
Input A
+12 V
GND
590 Ω
820 Ω
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.
C-136
Up/Down Counting Meter
Voltage Pulse Inputs
590 Ω
820 Ω
10 k Ω
3
Input A
GND
590 Ω
820 Ω
10 k Ω
Input B
4
GND
11
Contact Output
10 11
1 2 3 4
INA INB GND
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.
K3NC
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.
PNP-input Models
External
+12 V
sensor
power
10
supply (+)
1
Input A
820 Ω
+12 V
Input B 2
820 Ω
External
sensor
11
GND
power
supply (−)
Voltage Output
Input resistance: 10 kΩ
10 11
+12V 1 2 3
INA INB
Voltage pulse output sensor
Note: With voltage pulse input
not from a 3-wire sensor,
connect the + side to ter-
minal 3 and the − side to
terminal 11.
3 4 5 6 7 8 9
+12 V
+12 V
GND
GND
PNP Open Collector Output
10
1 2
4
+12V
INA
0 V
PNP output sensor
11
3 4
INB
0 V