Example Calculations - Omron CJ2 CPU UNIT User Manual

Example Calculations

Example 1: In this example, the following Units are mounted to a CPU Rack with a CJ1W-PA205R
Power Supply Unit.
Unit
CPU Unit
I/O Control Unit
Input Units
Output Unit
Special I/O Unit
CPU Bus Unit
Current consump-
tion
Power consump-
tion
Example 2: In this example, the following Units are mounted to a CJ-series Expansion Rack with a
CJ1W-PA205R Power Supply Unit.
Unit
I/O Interface Unit
Input Unit
Output Unit
Current consump-
tion
Power consump-
tion
CJ2 CPU Unit Hardware User's Manual
Model Quantity
CJ2H-CPU68-EIP 1
CJ1W-IC101 1
CJ1W-ID211 2
CJ1W-ID231 2
CJ1W-OC201 2
CJ1W-DA041 1
CJ1W-CLK23 1
Calculation
Result
Calculation
Result
Model Quantity
CJ1W-II101 1
CJ1W-ID211 2
CJ1W-OD231 8
Calculation
Result
Calculation
Result
2 Basic System Configuration and Devices
Voltage group
5-V
0.820 A
0.020 A
0.080 A
0.090 A
0.090 A
0.120 A
0.350 A
0.820 A + 0.020 A +
0.080 A × 2 + 0.090 A × 2 +
0.090 A × 2 + 0.120 A +
0.350 A
1.83 A (≤5.0 A)
2.51 A × 5 V = 9.15 W
9.15 W + 2.30 W = 11.45 W (≤25 W)
Voltage group
5-V
0.130 A
0.080 A
0.140 A
0.130 A + 0.080 A × 2 +
0.140 A × 8
1.41 A (≤5.0 A)
1.41 A × 5 V = 7.05 W
7.05 W (≤25 W)
24-V
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0.048 A
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0.048 A × 2
0.096 A (≤0.8 A)
0.096 A × 24 V = 2.304 W
24-V
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2-23
2