Power Supply Check From The Powered Input/Output Module (Current Consumption Calculation) - Mitsubishi Electric MELSEC iQ-F FX5U User Manual

Power supply check from the powered input/output module
(current consumption calculation)
If 5 V DC and 24 V DC power supplies of the CPU module are insufficient and system cannot be extended, add a powered
input/output module.
Check if power can be supplied to extension modules with the power supply capacity of the powered input/output module.
CPU module
Expansion Input
Expansion
module
adapters
board
In the case of AC power supply type
Calculate following the procedure below.
1.
Check the power supply capacity of the powered input/output module.
(Page 41 Powered input/output module)
Ex.
Type
Powered input/output module
*1 Value when service power supply is used for input circuits.The power supply capacity differs when external power supply is used for
input circuit.
2.
Check the current consumption of the extension module.
(Page 39 I/O Module)
(Page 42 Intelligent Function Module)
Ex.
Type
Input module
Output module
Simple motion modules
Bus conversion module
Analog input
3.
Calculate the total current consumption of each power supply.
Ex.
Power supply type
5 V DC power supply
24 V DC power supply
Powered
Output
Input
input/
module
module
output
module
Power supply from powered input/output module
Model
FX5-32ER/ES
Model
FX5-16EX/ES
FX5-16EYR/ES
FX5-40SSC-S
FX5-CNV-BUS
FX3U-4AD
Total current consumption
460 mA
210 mA
FX5 Bus
Output
Intelligent conversion Intelligent
module
module module module
Power supply capacity
5 V DC power supply
965 mA
Current consumption
5 V DC power supply
100 mA
100 mA

150 mA
110 mA
4 SYSTEM CONFIGURATION
4.4 Limitation on Current Consumption
FX3
24 V DC service power supply
*1
250 mA
24 V DC service power supply
85 mA
125 mA



4
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