Omron H7EC - Connections

C-136
Up/Down Counting Meter
K3NC
Connections
■
Terminal Arrangement
Input Unit
18 19 20 21 22 23 24 25 26
10 11 12 13 14 15 16 17
1 2 3 4 5 6 7 8 9
Terminal Numbers
Output unit
Input unit
Output
unit
Input
unit
Note: Terminals 7 to 13 are connected internally.
Terminals 7 and 11 are mutually isolated.
+12 V
+12 V
590 Ω
590 Ω
820 Ω
820 Ω
+12 V
10
1
2
11
GND
GND
+12 V
590 Ω
820 Ω
3
GND
10 k Ω
+12 V
590 Ω
820 Ω
4
11
GND
10 k Ω
+12 V
+12 V
590 Ω
820 Ω
10
1
2
11
GND
GND
GND
590 Ω
820 Ω
External
sensor
power
supply (+)
Input A
Input B
External
sensor
power
supply (−)
Internal circuits
Voltage Pulse Inputs
Input A
Input B
Internal circuits
PNP-input Models
External
sensor
power
supply (+)
Input A
Input B
External
sensor
power
supply (−)
Internal circuits
NPN Inputs
10 11
1234
+12 V
INA INB
0 V
10 11
1234
INA INB GND
10 11
1234
+12V
INA INB
0 V
+12V
INA INB
0 V
10 11
1234
Contact
NPN output sensor
PNP output sensor
Contact Output Voltage Output PNP Open Collector OutputNPN Open Collector Output
(NPN Linear 2-wire Output)
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.
Note: When the contact is short-
circuited, a current of approxi-
mately 13 mA will flow at a volt-
age of approximately 12 V.
Input resistance: 10 kΩ
Voltage pulse output sensor