4-12
Series 90-30 PLC Installation and Hardware Manual
–
August 2002
GFK-0356Q
4
Input Power/Current Calculation for IC693PWR328 Power Supply
Ŷ
Determine total output load from typical specifications listed for individual modules in
Chapter
2.
Ŷ
Use the graph to determine average input power.
Ŷ
Divide the input power by the operating source voltage to determine the input current
requirements.
Ŷ
Use the lowest input voltage to determine the maximum input current.
Ŷ
Allow for start-up surge current requirements.
Ŷ
Allow margins (
0% to 20%) for variations.