FX3U Series Programmable Controllers
User’s Manual - Hardwaer Edition
91
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
6.5.4 When special extension devices are also added [calculation of current
consumption] (DC Power Type)
1 Select a main unit.
Select a main unit.
Select one main unit appropriate to the required number of input/output points from the following table.
*1. When the supply voltage of the main unit is 16.8V to 19.2V DC, the power supply for the internal 24V
DC is 250mA.
*2. When the supply voltage of the main unit is 16.8V to 19.2V DC, the power supply for the internal 24V
DC is 450mA.
2 Enter the specifications for the selected main unit.
Enter the number of input/output points and power supply type of the main unit according to the
above table.
Classifi-
cation
Type
Input
specifi-
cations
Output
specifications
Number of
input/output
points
[points]
Current
supply at
startup [mA]
Capacity of
built-in
power
supply
Power
supply for
internal 24V
DC [mA]
5V DC
power
supply[mA]
main unit
FX
3U
-16MR/DS
24V DC
Relay
16
640
500
400
*1
FX
3U
-16MT/DS Transistor (sink)
16
FX
3U
-16MT/DSS Transistor (source)
16
FX
3U
-32MR/DS Relay
32
FX
3U
-32MT/DS Transistor (sink)
32
FX
3U
-32MT/DSS Transistor (source)
32
FX
3U
-48MR/DS Relay
48
800
600
*2
FX
3U
-48MT/DS Transistor (sink)
48
FX
3U
-48MT/DSS Transistor (source)
48
FX
3U
-64MR/DS Relay
64
FX
3U
-64MT/DS Transistor (sink)
64
FX
3U
-64MT/DSS Transistor (source)
64
FX
3U
-80MR/DS Relay
80
FX
3U
-80MT/DS Transistor (sink)
80
FX
3U
-80MT/DSS Transistor (source)
80
Classification
Number of
connected
units
Type
Number of
input/output
points
[points]
Current
supply at
startup
[mA]
Capacity of
built-in power
supply
Power
supply for
internal 24V
DC [mA]
5V DC power
supply [mA]
With built-in
power
supply
main unit
1FX
3U-
Example of entry→
FX
3U
-32MR/DS
32 640 500 400
A
1 -1 1 -2
1 -3 1 -4
A
1
1 -1
1 -2 1 -3 1 -4
A