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

3.
Calculate the total current consumption of 24 V DC power supply.
Ex.
Power supply type
24 V DC power supply
4.
Check if expansion to the CPU module is permitted.
Capacity of 24 V DC
power supply
CPU module
-
mA
Ex. 400 mA
For the CPU module, up to two expansion modules which consume the 24 V DC power supply can be connected.
If further expansion modules are connected, reconfigure the system, adding powered input/output module or extension power
supply modules.
Power supply check from the powered input/output module
(current consumption calculation)
If the maximum number of CPU modules that can be connected is exceeded and further expansion modules are connected,
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.
Ex.
CPU module
Expansion Input
Expansion
adapters module
board
Calculate following the procedure below.
1.
Check the power supply capacity of the powered input/output module.
(Page 44 Powered input/output module)
Ex.
Type
Powered input/output module
*1 Value when 24 V DC 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 41 I/O module)
(Page 44 Intelligent function module)
Ex.
Type
Input module
Output module
Simple motion module
Network module
Current consumption
Total of current consumed
by extension module
=
mA
200 mA
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-ASL-M
Total current consumption
200 mA
Calculation result
≥
mA
200 mA
Output Intelligent Intelligent
module module module
Power supply capacity
5 V DC power supply
965 mA
Power supply capacity
5 V DC power supply
100 mA
100 mA

200 mA
4.4 Limitation on Current Consumption
0 mA
24 V DC service power supply
*1
250 mA
24 V DC service power supply
85 mA
125 mA


4 SYSTEM CONFIGURATION
4
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