Power Supply Check From Extension Power Supply Module (Current Consumption Calculation) - Mitsubishi Electric MELSEC iQ-F FX5U User Manual

Power supply check from extension power supply module
(current consumption calculation)
If 5 V DC power supply of the CPU module is insufficient and cannot be extended, add an extension power supply module.
Check if power can be supplied to extension modules with the power supply capacity of the extension power supply module.
Ex.
CPU module
Expansion
Expansion
adapters
board
Calculate following the procedure below.
1.
Check the power supply capacity of the extension power supply module used.
(Page 44 Extension Power Supply Module)
Ex.
Type
FX5 extension power supply module
If the ambient temperature exceeds 40, use the extension power supply module at the following current
values within the derating range.
Derating curve
FX5-1PSU-5V
Output current [mA]
1200
800
300
200
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 module
Bus conversion module
Analog input
*1 24 V DC power supply is supplied from the CPU module or powered input/output module.
4 SYSTEM CONFIGURATION
62
4.4 Limitation on Current Consumption
FX5
extension
Output
Input
power
module
module
supply
module
Power supply from FX5 extension power supply module
(Only the 5 V DC power supply for the input module is
supplied by the extension power supply module.)
Model
FX5-1PSU-5V
5 V DC
24 V DC
Ambient
temperature []
40 55
Model
FX5-16EX/ES
FX5-16EYR/ES
FX5-40SSC-S
FX5-CNV-BUS
FX3U-4AD
FX5
Bus
Output
Intelligent
conversion
module
module module
Power supply capacity
5 V DC power supply
1200 mA
Current consumption
5 V DC power supply
100 mA
100 mA

150 mA
110 mA
FX3
Intelligent
module
24 V DC power supply
300 mA
24 V DC power supply
*1

125 mA


