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4 SYSTEM CONFIGURATION
4.4 Limitation on Current Consumption
2. Check the number of input/output points and current consumption of the extension module.
(Page 33 I/O Module)
(Page 34 Intelligent Function Module)
3. Calculate the total current consumption of each power supply.
4. Check if expansion to the extension power supply module is permitted.
• 5 V DC power supply
• 24 V DC power supply
The value obtained by this calculation (when the value is positive) indicates the remaining capacity of 24 V DC service power
supply, and the capacity can be used for external loads.
Type Model Current consumption
5 V DC power supply 24 V DC service power supply
Input module FX5-16EX/ES 100 mA 85 mA
Output module FX5-16EYR/ES 100 mA 125 mA
Simple motion modules FX5-40SSC-S
Bus conversion module FX5-CNV-BUS 150 mA
Analog input FX3U-4AD 110 mA
Power supply type Total current consumption
5 V DC power supply 460 mA
24 V DC power supply 210 mA
Ex.
Ex.
mA
-
mA
Powered input/output
module
Current consumption
mA
≥
0 mA
=
Calculation result
Ex.
460 mA965 mA 505 mA
Capacity of 5 V DC
power supply
Total of current
consumed by extension
module
mA
-
mA
Powered input/output
module
Current consumption
mA
≥
0 mA
=
Calculation result
Ex.
210 mA250 mA 40 mA
Capacity of 24 V DC
service power supply
Total of current
consumed by extension
module