Connections; Block Diagram - Omron H7CX - DATASHEET 2 Datasheet

Connections

Block Diagram

Output circuit
(Basic insulation)
Internal control
Input circuit
circuit
I/O Functions
Inputs Count
Hold
Outputs OUT
Note: Refer to page 55 for details on the hold function.
Terminal Arrangement
Hold
Count
Hold
Hold
0 V
( )
Sensor, etc.
12 VDC
(+)
External power supply
Note: 1. Terminals 4, 5, and 7 are all for the hold function. The func-
tion is the same whichever terminal is connected. Terminals
4, 5, and 7 are not connected internally and so do not use
them for bridge wiring.
2. Recommended wire: AWG 18 to 24 (Cross-sectional area:
2
0.205 to 0.823 mm
Input Circuits
Count and Hold Inputs
No-voltage Inputs (NPN Inputs)
+14 V
1 k
Internal
IN
circuit
Voltage Inputs (PNP Inputs)
Approx. 4.7 k
Internal
IN
circuit
46
Tachometer
(Basic
insulation) Power supply
circuit
(Basic insulation)
Display circuit
Key switch
circuit
Reads counting signals.
Holds the measurement value and outputs.
The hold indicator is lit during hold.
Outputs signals according to the specified output mode when a comparison value is reached.
Internal circuit
6 7
5
4 8
3 9
2 10
1 11
OUT
(+)
( )
), solid or twisted, copper or aluminum
H7CX-R