Omron SYSMAC CS1D-PD Series Operation Manual page 558

Specifications of Basic I/O Units and High-density I/O Units
Note 1. The ON response time will be 120 µs maximum and OFF response time will be 300 µs maximum even
if the response times are set to 0 ms due to internal element delays
2. The input ON and OFF response times for Basic I/O Units can be set to 0 ms, 0.5 ms, 1 ms, 2 ms,
4 ms, 8 ms, 16 ms, or 32 ms in the PLC Setup.
Maximum Number of ON Inputs for 24-V DC Inputs
CS1W-ID291/MD291/MD292
The maximum number of 24-V DC inputs that can be ON simultaneously for the CS1W-ID291/MD291/MD292
depends on the ambient temperature, as shown in the following diagrams.
CS1W-MD291/292 Inputs
Temperature Characteristic for
Max. ON Inputs (20.4 V)
50
40
30
20
10
0
0 10
Ambient temperature (°C)
Temperature Characteristic for
Max. ON Inputs (20.4 V)
50
40
30
20
10
0
0 10
Ambient temperature (°C)
Temperature Characteristic for
Max. ON Inputs (26.4 V)
50
40
30
20
10
0
0 10
Ambient temperature (°C)
If the maximum number of ON points is exceeded for the CS1W-ID291/MD291/MD292, heat generated by
electronic elements will increase the temperature of the electronic elements and the interior of the Unit. This
will reduce the reliability and life of the electronic elements and cause Unit malfunctions. There will be a delay
in the temperature increase, however, and there will be no problems if all inputs are ON for 10 minutes or less
at the start of operations or any other time that all inputs have been off for at least 2 hours.
518
53°C: 48 pts
55°C: 30 pts
20 30 40 50 60
41°C: 48 pts
53°C: 34 pts
55°C: 24 pts
20 30 40 50 60
31°C: 48 pts
51°C: 30 pts
51°C: 18 pts
20 30 40 50 60
.
CS1W-ID291 Inputs
Temperature Characteristic for
Max. ON Inputs (20.4 V)
100
80
60
40
20
0
0 10 20 30 40
Ambient temperature (°C)
Temperature Characteristic for
Max. ON Inputs (20.4 V)
32°C: 96 pts
100
80
60
40
20
0
0 10 20 30 40
Ambient temperature (°C)
Temperature Characteristic for
Max. ON Inputs (26.4 V)
17°C: 96 pts
100
80
60
40
20
0
0 10 20 30 40
Ambient temperature (°C)
Appendix A
48°C: 96 pts
55°C: 48 pts
50 60
51°C: 62 pts
55°C: 48 pts
50 60
48°C: 58 pts
55°C: 32 pts
50 60