Omron CP1E-E14SDR-A User Manual page 82

Estimating the Service Life of Relays
Under normal 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.
CP1E-
1000
700
500
300
200
100
70
50
30
20
125 VAC cosφ= 0.4
10
7
5
250 VAC cosφ= 0.4/
30 VDC, τ = 7ms
3
2
1
0.1 0.2 0.3
Relationship between Continuous Simultaneous ON Rate and Ambient
Temperature
There are restrictions on the power supply voltage and output load current imposed by the ambient
temperature. Make sure that the power supply voltage and output load current are within the follow-
ing ranges.
CP1E-N14DR-D
CP1E-N20DR-D
100%
Power voltage
21.6VDC
50%
Power voltage
20.4VDC
0%
Ambient temperature
CP1E- 14(S)DR-A
CP1E- 20(S)DR-A
CP1E-N20DT -
100%
50%
0%
Ambient temperature
Note The above restrictions apply to the relay output load current from the CPU Unit even if Expansion I/O Units
are not connected.
CP1E CPU Unit Hardware User's Manual(W479)
DR-
125-VAC resistive load
30-VDC/250-VAC
resistive load
0.5 0.7 1 2 3 5
Contact current (A)
CP1E-N30DR-D
100 %
Power voltage
21.6VDC
50%
Power voltage
20.4VDC
0%
40 45 55 ˚C
35
Ambient temperature
CP1E-NA20DR-A
100%
80%
0%
50 55 ˚C
Ambient temperature
3 Part Names and Functions
7 10
CP1E-N40DR-D
100%
Power voltage
21.6VDC
50%
Power voltage
20.4VDC
0%
45 55˚C 30
Ambient temperature
50 55˚C
CP1E-N60DR-D
100%
Power voltage:
21.6VDC
50%
Power voltage:
20.4VDC
0%
45 50 55 ˚C 40 45 55˚C
Ambient temperature
3
3-15