Limitation On Current Consumption; Power Supply Check From The Cpu Module (Current Consumption Calculation) - Mitsubishi Electric MELSEC iQ-F Series User Manual

4.4

Limitation on Current Consumption

Power required for expansion adapters, expansion boards, and extension modules is supplied from the CPU module,
powered input/output module or extension power supply module. The number of extension devices that can be connected
must be determined from the capacity of the power supply.
Power supply check from the CPU module (current consumption
calculation)
Check if power can be supplied to extension devices with the power supply capacity of the CPU module.
Ex.
CPU module
Expansion
Expansion
adapters
Power supply from CPU module
• Current consumption calculation of the 5V DC power supply is not required.
• Current consumption calculation of the expansion board and expansion adapter is not required.
• For the extension module, current consumption calculation is not required when the total number of
occupied input/output points is 32 points or less, and up to two extension modules are connected. For the
subsequent extension modules, each module consumes 200 mA from the 24 V DC power supply.
Calculate following the procedure below.
1.
Check the power supply capacity of the CPU module used.
(Page 40 CPU Module)
Ex.
Type
CPU 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 extension modules which requires current consumption calculation.
(Page 41 I/O module)
(Page 44 Intelligent function module)
Ex.
Type
Expansion board
Expansion adapter
Output module
Input module
Simple motion module
(1): Current consumption calculation of the expansion board and expansion adapter is not required.
(2): Current consumption calculation is not required when the total number of occupied input/output points is 32 points or less, and up to two extension modules
are connected. (In the above example, calculation is not required because +=32 points or less.)
(3): Each module of the subsequent expansion modules consumes 200 mA from the 24 V DC power supply.
4 SYSTEM CONFIGURATION
56
4.4 Limitation on Current Consumption
Output Input
module module
board
Model
FX5UJ-40MT/ES
Model
FX5-232-BD
FX5-232ADP
FX5-16EYT/ES
FX5-16EX/ES
FX5-40SSC-S
Intelligent
module
Type Model Power supply capacity (24 V DC service power
supply)
*1
400 mA
Current consumption (24 V DC power supply)
(1) Calculation is not required
Calculation is not required
(2) Calculation is not required (Output points: 16 points)
Calculation is not required (Input points: 16 points)
(3) 200 mA