Omron SYSMAC CS Series Operation Manual page 671

Specifications of Basic I/O Units and High-density I/O Units
Terminal Connections
Note 1. Mount to the C200H-BC@@1-V1/V2 Backplane.
2. The number of simultaneously ON contact points must be eight or less to ensure proper heat resis-
tance.
About Contact Output Units
There are some differences in the relays used by the C200H and CS-series Contact Output Units. For this rea-
son, when used in the ways shown below, there may be differences in the respective life expectancies of the
relays.
• When using in excess of rated values
• When appropriate surge countermeasures are not taken
• When connected to a load (e.g., relay, solenoid, or motor) that generates a high counterelectromotive force
when power is interrupted
• When connected to a load (e.g., capacitor or lamp) that generates a high inrush current when power is
turned ON
In the above cases, ensure the rated life expectancies of the relays by, for example, taking the appropriate
surge countermeasures as explained in the manual, or using a switching device (as a relay) with ratings appro-
priate for the load.
Life Expectancy of CS1W-OC201/211 Relays
The life expectancy of the CS1W-OC201/211 Contact Output Unit is shown in the following diagrams. Use the
diagrams to calculate the relay service life based on the operating conditions, and replace the relay before the
end of its service life.
Note The diagrams show the life expectancy of the relay itself. Do not use a contact current, therefore, that
exceeds the maximum switching capacity specified in the specifications for each Contact Output Unit. If
a switching capacity exceeding the specifications is used, the reliability and life expectancy of other
parts will be reduced and the Unit may malfunction.
1
B0
A0
L
B1
3
A1
L
B2
5
A2
L
B3
7
A3
L
B4
9
A4
L
B5
11
A5
L
B6
13
A6
L
B7
15
A7
L
B8
A8
COM
B9
250 V AC 24 V DC max.
(inductive load: 2 A, resistive load: 2 A) (8 A/Unit)
0
L
2
L
4
L
6
L
8
L
10
L
12
L
14
L
NC
NC
Appendix A
633