Mitsubishi Electric MELSEC iQ-F FX5U User Manual page 73

Check of limitation on current consumption
Check if power required for extension devices can be supplied from the CPU module and extension power supply module.
A case using service power supply for input circuit is explained as an example.
■ Check of power supply from the CPU module
(Page 56 Power supply check from the CPU module (current consumption calculation))
Power supply capacity of the CPU module
Type
CPU module
Current consumption of extension devices
Type
Expansion board
Expansion adapter
Expansion adapter
Input module
Output module
Output module
Capacity of 5 V DC
Current consumption
power supply
Total of current
CPU module
consumed by extension
module
-
900 mA
Capacity of 24 V DC
Current consumption
service power supply
CPU module Total of current
consumed by extension
module
-
400 mA
Model
FX5U-32MR/ES
Model
FX5-232-BD
FX5-232ADP
FX5-485ADP
FX5-16EX/ES
FX5-16EYT/ES
FX5-16EYT/ES
Calculation result
=
370 mA 530 mA
Calculation result
=
395 mA
4.5 Rules of System Configuration and Examples of Reconfiguration
Power supply capacity
5 V DC power supply 24 V DC service power supply
900 mA 400 mA
(Service power supply is used for input circuit)
Current consumption
5 V DC power supply
20 mA
30 mA
20 mA
100 mA
100 mA
100 mA
OK
OK
5 mA
24 V DC power supply

30 mA
30 mA
85 mA
125 mA
125 mA
4 SYSTEM CONFIGURATION
4
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