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■ Output Specifications (CPU Units and Expansion I/O Units)
Units with Relay Outputs
Item
Maximum switching capacity 250 VAC/8 A (resistive load: cosφ = 1)
Minimum switching capacity 5 VDC/10 mA (resistive load)
Relay life
Electrical
Mechanical
ON response time
OFF response time
The life under the worst conditions, of the output contacts used in
ZEN relay outputs is given in the above table. Guidelines for the
normal life of the relays are shown in the diagram on the right.
Note: The switching capacity, switching durability, and applicable
load area when actually using the relay depend on the type of
load, environmental conditions, and switching conditions.
Therefore, be sure to confirm these conditions for the actual
machine before use.
Units with Transistor Outputs
Item
Maximum switching capacity 24 VDC +20%, 500 mA
Leakage current
Residual voltage
ON response time
OFF response time
Specifications
24 VDC/5 A (resistive load)
Use the following values for the total of all outputs.
CPU Units with 10 I/O points: 20 A max.
(15 A max. for Communications-type CPU Units)
CPU Units with 20 I/O points: 40 A max.
Expansion I/O Units:
(failure level: P, reference value)
Resistive load: 50,000 times (cosφ = 1)
Inductive load: 50,000 times (cosφ = 0.4)
10 million times
15 ms max.
5 ms max.
Specifications
0.1 mA max.
1.5 V max.
1 ms max.
1 ms max.
20 A max.
Life-test Curve (Reference Value)
Usage: 360 times/hour
1,000
500
300
100
50
30
10
0
Each circuit is configured with an independent common
circuit
ZEN V2 Units
Circuit drawing
Q0 to Q3/OUT0 to OUT3
L
Q4/Q6
L
COM
Models with
20 I/O points
only
L
Q5/Q7
250-VAC resistive load
24-VDC resistive load/
250-VAC inductive load
24-VDC inductive load
(t = 7 ms)
2
4
6
8
10
Contact current (A)
Circuit drawing
Q0 to Q3/OUT0 to OUT3
390 Ω
28.8 VDC max.
L
L
1 kΩ
COM
Internal
+
28.8 VDC max.
circuit
L
Models with
Q4/Q6
20 I/O points
only
L
Q5/Q7
11
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