Omron DEVICENET - Flowchart: Determining Power Supply Requirements; Communications Power Supply

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Flowchart: Determining Power Supply Requirements Section 3-2
3-2 Flowchart: Determining Power Supply Requirements
3-2-1 Communications Power Supply
Use the flow chart below to determine the appropriate method for supplying
the communications power supply on the trunk line. The current in each
branch line must not exceed the maximum value calculated with the equation
on page 88.
No
Yes
No
Yes
No
Yes
No
Yes
Select a preliminary location
for the power supply.
Estimate the best location of the power
supply from the graphs.
Step 1
Are the power supply
specifications met?
Consider changing the location
of the power supply.
Consider using thick cable.
Calculate the best power
supply location based on the
actual network configuration.
Are the power supply
specifications met?
Step 2
Are the power supply
specifications met?
Consider changing the location
of the power supply.
Consider using thick cable.
Consider moving nodes with
high current consumption.
Are the power supply
specifications met?
Step 3
Split the power supply system
and install two or more power
supplies.
Power supply
placement OK