2-19
2 Basic System Configuration and Devices
CJ2 CPU Unit Hardware User’s Manual
2-1 Basic System Configuration
2
2-1-5 Calculating Unit Current Consumption
Example 2: In this example, the following Units are mounted to a CJ-series Expansion Rack with a
CJ1W-PA205R Power Supply Unit.
Additional Information
Rack Current Consumption and Width Display
To display the current consumption and width of Units connected in the CPU Rack or Expansion
Rack, select Current Consumption and Width from the Options Menu in the CJ2 CPU Unit I/O
Tabl e W i ndow.
If the capacity of a Power Supply Unit is exceeded, it will be displayed in red.
Unit Model Quantity
Voltage group
5-V 24-V
I/O Interface Unit CJ1W-II101 1 0.130 A ---
Input Unit CJ1W-ID211 2 0.080 A ---
Output Unit CJ1W-OD231 8 0.140 A ---
Current consump-
tion
Calculation 0.130 + 0.080 × 2 + 0.140
× 8
---
Result 1.41 A (≤5.0 A) ---
Power consump-
tion
Calculation 1.41 × 5 V = 7.05 W ---
Result 7.05 W (≤25 W)
Power Supply
Unit model
Current
consumption
at 5 V
Current
consumption
at 26/24 V
Total power
consumption
Indicates
long-distance
expansion
Width
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