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Mitsubishi FX3U Series User Manual

Mitsubishi FX3U Series
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FX3U Series Programmable Controllers
User’s Manual - Hardwaer Edition
89
6 Examination of System Configuration
6.5 Expansion of Main Unit (Calculation of Current Consumption)
1
Introduction
2
Features and
Part Names
3
Product
Introduction
4
Specifications
5
Version and
Peripheral
Devices
6
System
Configuration
7
Input/Output
Nos., Unit Nos.
8
Installation
9
Preparation and
Power Supply
Wiring
10
Input Wiring
4 Determine whether the devices can be connected to the main unit.
Calculate the current to confirm whether the selected extension devices can be connected.
1. Calculate the current consumption of the built-in 24V DC power supply (24V DC service
power supply).
The value obtained by this calculation (when the value is positive) indicates the remaining capacity of 24V DC
service power supply, and the capacity can be used for external loads.
2. Calculate the current consumption of the built-in 5V DC power supply.
If the calculation results for the current consumption for the 24V DC power supply and 5V DC power supply
are negative values, the current consumption exceeds the capacity of the built-in power supply.
Reconfigure the system configuration, adding input/output powered extension units or extension power
supply units.
If the calculation results for the current consumption for the 24V DC power supply and 5V DC power supply
are negative values, add an input/output powered extension unit.
Refer to Section 6.6 "Expansion of FX2N Series I/O Powered Extension Unit (Calculation of Current
Consumption)"
If the calculation results for the current consumption by 5V DC is a negative value, add an extension power
supply unit (FX
3U-1PSU-5V).
Refer to Section 6.8 "Number of Input/Output (Occupied) Points and Current Consumption"
mA
-
mA
Main unit
Total of current consumed
by extension devices
Current consumption
Capacity of 24V DC
power supply
mA
0mA=
Calculation result
1-
3
2-
3
mA
-
mA mA
0mA=
Current consumption
Capacity of 5V DC
power supply
Calculation result
Main unit
Total of current consumed
by extension devices
1-
2
2-
2

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Mitsubishi FX3U Series Specifications

General IconGeneral
ModelFX3U Series
Program Memory64k steps
Execution Speed0.065 μs/basic instruction
TypePLC (Programmable Logic Controller)
Power Supply100-240V AC
I/O PointsUp to 384
CommunicationUSB
ExpansionSupported via expansion modules
High-Speed CountersUp to 6 channels
Analog Input/OutputAvailable via expansion modules
Temperature Range0 to 55°C
Programming LanguageLadder Logic, Structured Text
Built-in FunctionsPID control
Humidity5 to 95% (non-condensing)

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