Mitsubishi Electric MELSEC iQ-F FX5U User Manual page 62

4.
Check if expansion to the extension power supply module is permitted.
• 5 V DC power supply
Capacity of 5 V DC
power supply
Powered input/output
module
mA
Ex. 965 mA
• 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.
Capacity of 24 V DC
service power supply
Powered input/output
module
mA
250 mA
Ex.
If the calculation result is a negative value, the current consumption exceeds the power supply capacity of the CPU module.
Reconfigure the system, adding powered input/output module.
In the case of DC 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
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
4 SYSTEM CONFIGURATION
60
4.4 Limitation on Current Consumption
Current consumption
Total of current
consumed by extension
module
-
mA
460 mA
Current consumption
Total of current
consumed by extension
module
-
mA
210 mA
Model
FX5-32ER/DS
Model
FX5-16EX/ES
FX5-16EYR/ES
FX5-40SSC-S
FX5-CNV-BUS
FX3U-4AD
Total current consumption
460 mA
210 mA
Calculation result
= mA ≥
505 mA
Calculation result
= mA ≥
40 mA
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
0 mA
0 mA
24 V DC power supply
310 mA
24 V DC power supply
85 mA
125 mA


