Omron CP1H-CPU - 05-2006, Operation Manual

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71
Specifications
Section 2-2
Note Under the worst conditions, the service life of output contacts is as shown
above. The service life of relays is as shown in the following diagram as a
guideline.
■
Output Load Current and Ambient Temperature (CPM1A-16ER)
With the CPM1A-16ER, the load current is restricted depending on the ambi-
ent temperature. Design the system considering the load current based on the
following graph.
300
200
100
50
30
20
5
3
2
10
0.1 0.2 0.3 0.5 0.7 1 2 3 5
Lif
e (
×
10
4
)
Contact current (A)
120 VAC resistive load
24 VDC
τ
= 7 ms
120 VAC cos
φ
= 0.4
24 VDC cos
φ
= 0.4
24 VDC/240 VAC resistive load
Switching rate: 1,800 operations/hour
Output load current (%)
50
100
55 43
Ambient temperature (
°
C)