Appendix CUnit Current and Power Consumption
206
Example 2: For C200HW-PA204S
ID212 DC Input Units: 6 Units
CT002 High-speed Counter Units: 2 Units
External power supply used (for ID212): 0.8 A
Power Supply
Current Consumption Power Consumption
5-V system 0.01 x 6 + 0.3 x 2 = 0.66 A (≤ 4.6 A) 0.66 A x 5 V = 3.3 W
26-V system 0 0
24-V system Ext. power supply = 0.8 A (≤ 0.8 A) 0.8 A x 24 V = 19.2 W
Total = 22.5 W (≤ 30W)
Example 3: For C200HW-PA204S
OC221 Contact Output Units: 4 Units
ID217 High-density Input Unit: 1 Unit
OD219 High-density Output Unit: 1 Unit
CT002 High-speed Counter Unit: 1 Unit
External power supply used (for ID217): 0.3 A
Power Supply
Current Consumption Power Consumption
5-V system 0.01 x 4 + 0.12 + 0.27 +0.3
= 0.73 A (≤ 4.6 A) 0.73 A x 5 V = 3.65 W
26-V system 0.075 x 4 = 0.30 A (≤ 0.6 A) 0.3 A x 26 V = 7.8 W
24-V system Ext. power supply = 0.8 A (≤ 0.8 A) 0.8 A x 24 V = 19.2 W
Total = 18.65 W (≤ 30 W)
Calculating Power Consumption for Racks
The total power consumption (primary power input) for an individual Rack can be
broadly calculated as shown in the following examples.
Example 1: CPU Rack
Total power consumption of Units + 3.5
0.6 x 0.55 (VA)
3.5 = CPU Unit power consumption
0.6 = 60% efficiency
0.55= Power rate
Example 2: All Other Racks
Total power consumption of Units + 2
0.6 x 0.55 (1) (VA)
2 = I/O Power Supply Unit (Remote I/O Slave Unit) power consumption
0.6 = 60% efficiency
0.55 (1) = Power rate
(Number in parentheses: when RT002-P or RT202 is used.)
Unit Model 5-V supply 26-V supply
CPU Unit
C200HE-CPUjj-E
C200HG-CPUjj-E
C200HX-CPUjj-E
0.5 A ---
CPU Backplane
C200HW-BCjjj
0.1 A ---
I/O Backplane
C200HW-BIjjj
0.15 A ---
Unit Model 5-V supply 26-V supply
Communications
C200HW-COM01 0.03 A ---
Board
C200HW-COM02 0.1 A ---
C200HW-COM03 0.2 A ---
C200HW-COM04-E 0.1 A ---
C200HW-COM05-E 0.1 A ---
C200HW-COM06-E 0.2 A ---
Current Drawn by CPU
Units and Backplanes
Current Drawn by
Communications Boards
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