H7CZ
5
Connections
Block Diagram
Terminal Arrangement
Confirm that the power supply meets specifications before use.
Input Circuits
Count and Reset Input
Input Connections
The inputs of the H7CZ-L8
@
are no-voltage (short-circuit or open) inputs.
No-voltage Inputs (NPN Inputs)
No-voltage Input Signal Levels
Note:
The DC voltage must be 30 VDC max.
H7CZ-L8/L8D1
1-stage Contact Output
O
u
tp
u
t circ
u
it
Display circ
u
it
Inp
u
t circ
u
its
(Basic ins
u
lation)
(Basic ins
u
lation)
Internal
control circ
u
it
Po
w
er s
u
pply
circ
u
it
Key s
w
itch
circ
u
it
(Basic ins
u
lation)
0V
Count
Internal circuit
Contact Output
Reset
(
+
)
(
−
)
No-voltage Inputs (NPN Inputs)
Internal
circ
u
it
IN
+14
V
1 k
Ω
Open Collector
Voltage Output
Contact Input
DC Two-wire Sensor
Note:
Operates
w
ith transistor ON.
PLC or
sensor
1
3
4
0
V
f
or inp
u
ts
Reset inp
u
t
Co
u
nt inp
u
t
Note:
Operates
w
ith transistor ON.
Sensor
0
V
f
or inp
u
ts
1
3
4
Reset inp
u
t
Co
u
nt inp
u
t
Note:
Operates
w
ith relay ON.
0
V
f
or inp
u
ts
1
3
4
Reset inp
u
t
Co
u
nt inp
u
t
Note:
Operates
w
ith transistor ON.
0
V
f
or inp
u
ts
1
3
4
Reset inp
u
t
Co
u
nt inp
u
t
No-contact input
Short-circuit level (transistor O
N
)
• Residual voltage: 3 V max.
• Impedance when O
N
: 1 k
Ω
max.
(The leakage current is approx. 12 mA when the impedance is 0
Ω
.)
Open level (transistor OFF)
• Impedance when OFF: 100 k
Ω
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
