Mitsubishi FX3U Series User Manual

FX3U Series Programmable Controllers
User’s Manual - Hardware Edition
86
6 Examination of System Configuration
6.5 Expansion of Main Unit (Calculation of Current Consumption)
1. AC power supply/DC input type
1) FX3U-16MR/ES, FX3U-16MT/ES, FX3U-16MT/ESS, FX3U-32MR/ES, FX3U-32MT/ES, FX3U-32MT/ESS
(Example) When a 16-input and 16-output point extension block is connected to FX
3U-16/32M, the
current of the 24V DC service power supply becomes 150 mA or less.
2) FX
3U-48MR/ES, FX3U-48MT/ES, FX3U-48MT/ESS, FX3U-64MR/ES, FX3U-64MT/ES, FX3U-64MT/ESS,
FX 3U -80MR/ES, FX 3U -80MT/ES, FX 3U -80MT/ESS, FX 3U -128MR/ES, FX 3U -128MT/ES, FX 3U -128MT/ESS
(Example) When a 32-input and 16-output point extension block is connected to FX3U-48~128M, the
current of the 24V DC service power supply becomes 250 mA or less.
2 Confirm the current capacity of 24V DC service power supply from the value
shown in the quick reference matrix.
This remaining power supply capacity (current) can be used as a power supply to external loads
(sensors or the like) by the user.
When special adapters and special function units/blocks are connected, it is necessary to consider
whether they can be covered by this remaining power supply capacity.
AC power supply
DC input type
FX 3U -16M 
FX 3U -32M 
0 8 16 24 32
Number of added points
Output
17524
250 200 15016
325 275 225 1758
400 350 300 250 2000
100
25
125
50
75
0
100
25
125
50
150
75
0
100
25
50 0
40
32
Input
40 48 56 64
Not allowed to add
(Example)
Number of
added points
FX 3U -48M 
FX 3U -64M 
FX 3U -80M 
FX 3U -128M 
AC power supply
DC input type
450 400 350 300 250 200 15016
525 475 425 375 325 275 225 1758
600 550 500 450 400 350 300 250 2000
300 250 200 15032
375 325 275 225 17524
225 17540
15048
0 8 16 24 32 40 48 56 64
Input
Output
150 100 50 0
72 80 88 96
125 75 25
100 50 0
125 75 25
100 50 0
125 75 25
100 50 0
75 25
0
56
64
Number of added points
(Example)
Number of
added points

Mitsubishi FX3U Series Specifications

General

Model	FX3U Series
Program Memory	64k steps
Execution Speed	0.065 μs/basic instruction
Type	PLC (Programmable Logic Controller)
Power Supply	100-240V AC
I/O Points	Up to 384
Communication	USB
Expansion	Supported via expansion modules
High-Speed Counters	Up to 6 channels
Analog Input/Output	Available via expansion modules
Temperature Range	0 to 55°C
Programming Language	Ladder Logic, Structured Text
Built-in Functions	PID control
Humidity	5 to 95% (non-condensing)