Block Diagram; Input Connections; Input Circuits - Omron H7CX- -N Series Manual

Block Diagram

(Basic insulation)
Output circuit
(Basic insulation)
(See note.)
Internal

Input circuits

control circuit
Note: All models except for H7CX-@D-N have basic insulation.

Input Connections

The inputs of the H7CX-@-N are no-voltage (short-circuit or open) inputs or voltage inputs.
No-voltage Inputs (NPN Inputs)
Open Collector
PLC or
sensor
H7CX-A@ 6 7 8 9 10
H7CX-A11@ 3 7 5 6 4
Note: Operates with transistor ON.
No-voltage Input Signal Levels
Short-circuit level (transistor ON)
• Residual voltage: 3 V max.
• Impedance when ON: 1 kΩ max.
No-contact input
(The leakage current is approx. 12 mA when the impedance is 0 Ω.)
Open level (transistor OFF)
• Impedance when OFF: 100 kΩ min.
Contact input Use contacts which can adequately switch 5 mA at 10 V.
Note: The DC voltage must be 30 VDC max.
Voltage Inputs (PNP Inputs)
No-contact Input (NPN Transistor)
Sensor
H7CX-A@
6 7 8
H7CX-A11@ 3 7 5
Note: Operates with transistor OFF.
Voltage Input Signal Levels
High level (input ON): 4.5 to 30 VDC
Low level (input OFF): 0 to 2 VDC
Note: 1. The DC voltage must be 30 VDC max.
2. Input resistance: Approx. 4.7 kΩ
Power supply
circuit
Display circuit
Key switch
circuit
Voltage Output
Sensor
H7CX-A@ 6 7 8
H7CX-A11@ 3 7 5
Note: Operates with transistor ON.
No-contact Input (PNP Transistor)
Sensor
H7CX-A@
9 10
6 4 H7CX-A11@
Note: Operates with transistor ON.
Input Circuits
CP1, CP2, Reset/Reset 1, and Total Reset/Reset 2
Input
No-voltage Inputs
(NPN Inputs)
+14V
1 kΩ
IN
Contact Input
9 10 H7CX-A@
6 7
6 4 H7CX-A11@ 3 7
Note: Operates with relay ON.
6 7 8 9 10
3 7 5 6 4
H7CX-A@-N
Voltage Inputs (PNP Inputs)
Approx. 4.7 kΩ
IN
Internal
circuit
DC Two-wire Sensor
H7CX-A@ 6
8 9 10
5 6 4 H7CX-A11@ 3
Note: Operates with transistor ON.
Applicable Two-wire Sensor
• Leakage current: 1.5 mA max.
• Switching capacity: 5 mA min.
• Residual voltage: 3 VDC max.
• Operating voltage: 10 VDC
Contact Input
H7CX-A@ 6 7 8
3 7 5
H7CX-A11@
Note: Operates with relay ON.
Internal
circuit
7 8 9 10
7 5 6 4
9 10
6 4
9