35
CPU Unit and Expansion I/O Unit Output Specifications
Relay Outputs
Item
Specification
20CDR-j 30CDR-j 40CDR-j 60CDR-j
8ER 20EDR1
Max. switching capacity 2 A, 250 VAC (cosφ = 1)
2 A, 24 VDC
(4 A/common)
Min. switching capacity 10 mA, 5 VDC
Service life of relay
(See note.)
Electrical: 150,000 operations (24-VDC resistive load)
100,000 operations (240-VAC inductive load, cosφ = 4)
Mechanical: 20,000,000 operations
ON delay 15 ms max.
OFF delay 15 ms max.
Circuit configuration
Maximum
250 VAC: 2 A
24 VDC: 2 A
Output LED
Internal
circuits
Note The service life of relay output contacts shown in the table assumes the worst
conditions. The following graph shows the results of OMRON’s service life tests
at a switching rate of 1,800 times/hour.
Life (x 10
4
)
Contact current (A)
120 VAC, resistive load
24 VDC/240 VAC, resistive load
Switching rate: 1,800 times/hour
24 VDC, τ = 7 ms
120 VAC, cosφ = 0.4
240 VAC, cosφ = 0.4
Specifications Section 2-1
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