Mitsubishi Electric MELSEC iQ-F FX6U Hardware User Manual page 73

In the case of DC power supply type
Calculate following the procedure below.
1.
Check the power supply capacity of the CPU module used. (Page 48 CPU Module)
Ex.
Type
CPU module
2.
Check the current consumption of extension devices.
(Page 50 I/O module)
(Page 53 Intelligent function module)
Ex.
Type
Expansion board
Expansion adapter
Output module
Input module
Simple motion module
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.
Check if expansion to the CPU module is permitted.
• 5 V DC power supply
Capacity of 5 V DC
power supply
CPU module
-
mA
Ex. 900 mA
• 24 V DC power supply
Capacity of 24 V DC
power supply
CPU module
-
mA
480 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 or extension power supply module.
Model
FX5U-32MT/DS
Model
FX5-232-BD
FX5-232ADP
FX5-16EYT/ES
FX5-16EX/ES
FX5-40SSC-S
FX5-CNV-BUS
FX3U-4AD
Total current consumption
510 mA
155 mA
Current consumption
Total of current
consumed by extension
module
=
mA
510 mA
Current consumption
Total of current
consumed by extension
module
=
mA
155 mA
Power supply capacity
5 V DC power supply
900 mA
Current consumption
5 V DC power supply
20 mA
30 mA
100 mA
100 mA

150 mA
110 mA
Calculation result
mA ≥
390 mA
Calculation result
mA ≥
325 mA
4.4 Limitation on Current Consumption
24 V DC power supply
480 mA
24 V DC power supply

30 mA
125 mA




0 mA
0 mA
4 SYSTEM CONFIGURATION
4
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