H7CX-A@-N
9
Block Diagram
Note: All models except for H7CX-@D-N have basic insulation.
Input Circuits
CP1, CP2, Reset/Reset 1, and Total Reset/Reset 2
Input
Input Connections
The inputs of the H7CX-@-N are no-voltage (short-circuit or open) inputs or voltage inputs.
No-voltage Inputs (NPN Inputs)
No-voltage Input Signal Levels
Note: The DC voltage must be 30 VDC max.
Voltage Inputs (PNP Inputs)
Voltage Input Signal Levels
Note: 1. The DC voltage must be 30 VDC max.
2. Input resistance: Approx. 4.7 kΩ
Output circuit
(See note.)
Display circuit
Input circuits
(Basic insulation)
(Basic insulation)
Internal
control circuit
Power supply
circuit
Key switch
circuit
No-voltage Inputs
(NPN Inputs)
Voltage Inputs (PNP Inputs)
Internal
circuit
IN
+14V
1 kΩ
IN
Approx. 4.7 kΩ
Internal
circuit
Open Collector Voltage Output Contact Input DC Two-wire Sensor
H7CX-A@
H7CX-A11@
Note: Operates with transistor ON.
PLC or
sensor
678910
37564
0 V for inputs
Reset/reset 1 input
CP2 input
CP1 input
Total reset/reset 2 input
H7CX-A@
H7CX-A11@
Note: Operates with transistor ON.
Sensor
678910
37564
0 V for inputs
Reset/reset 1 input
CP2 input
CP1 input
Total reset/reset 2 input
Note: Operates with relay ON.
H7CX-A@
H7CX-A11@
678910
37564
0 V for inputs
Reset/reset 1 input
CP2 input
CP1 input
Total reset/reset 2 input
Note: Operates with transistor ON.
H7CX-A@
H7CX-A11@
678910
37564
0 V for inputs
Reset/reset 1 input
CP2 input
CP1 input
Total reset/reset 2 input
No-contact input
Short-circuit level (transistor ON)
• Residual voltage: 3 V max.
• Impedance when ON: 1 kΩ max.
(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.
Applicable Two-wire Sensor
• Leakage current: 1.5 mA max.
• Switching capacity: 5 mA min.
• Residual voltage: 3 VDC max.
• Operating voltage: 10 VDC
No-contact Input (NPN Transistor) No-contact Input (PNP Transistor) Contact Input
Note: Operates with transistor OFF.
H7CX-A@
H7CX-A11@
Sensor
678910
37564
0 V for inputs
Reset/reset 1 input
CP2 input
CP1 input
Total reset/reset 2 input
Note: Operates with transistor ON.
H7CX-A@
H7CX-A11@
Sensor
678910
37564
0 V for inputs
Reset/reset 1 input
CP2 input
CP1 input
Total reset/reset 2 input
Note: Operates with relay ON.
H7CX-A@
H7CX-A11@
678910
37564
0 V for inputs
Reset/reset 1 input
CP2 input
CP1 input
Total reset/reset 2 input
High level (input ON): 4.5 to 30 VDC
Low level (input OFF): 0 to 2 VDC