53
FX3UC Series Programmable Controllers
User’s Manual - Hardware Edition
1 Outline
1.9 Calculation of 5V DC power supply capacity (current consumption)
1
Outline
2
External
Dimensions
3
Generic
Specifications
4
Power Supply
Specifications
5
Input
Specifications
6
Output
Specifications
7
Examples of
Wiring for
Various Uses
8
Terminal Block
9
CC-Link/LT
Master FX
3UC
(LT only)
10
Display module
FX
3UC
(LT only)
1.9 Calculation of 5V DC power supply capacity (current consumption)
Confirm the current consumption using the following procedures.
When the main unit built-in power supply is insufficient, add an extension power supply unit (FX
3UC-1PS-5V)
in accordance with the necessity.
1) Calculating the current in extension equipment that can receive power from the main unit built-in power
supply.
Check whether the current consumption of extension equipment to be connected is not more than the
capacity of the main unit built-in power supply.
2) Calculating the current in extension equipment that can receive power from the extension power supply
unit (FX
3UC-1PS-5V)
a) When only FX
3UC/FX2NC Series units are connected for extension:
b) When FX
3UC, FX2NC, FX3U, FX2N and FX0N Series equipment are connected for extension
For connection including the FX
3U, FX2N or FX0N Series extension equipment, the FX2NC-CNV-IF or
FX
3UC-1PS-5V is required:
When the capacity of the main unit built-in power
supply is insufficient, connect an extension power
supply unit (FX
3UC-1PS-5V) .
Select , or as and and
proceed to 2).
FX3UC Main unit
Special adapter
Expansion board
GOT
Programming tool
I/O extension
devices
FX3UC Main unit
FX3UC-1PS-5V
FX3UC special function
FX
2NC I/O
FX
2NC special function
Special function
devices
Proceed to "2) FX
3UC-
1PS-5V" below.
Calculate the current consumption
of the GOT/programming tool
connected to the FX
3U-422-BD.
FX
3UC-16MT/: 600mA
FX
3UC-32MT/: 560mA
FX
3UC-64MT/: 480mA
FX
3UC-96MT/: 400mA
FX
3UC-32MT/: 350mA
mA mA mA
mA
I/O extension
devices
Special function
devices
FX3UC-1PS-5V
FX
2NC I/O
FX
3UC special function
FX
2NC special function
Proceed to
1) above.
When the capacity is still insufficient:
Connect one more extension power supply unit (FX
3UC-1PS-5V) , and examine the
configuration of the remaining extension equipment.
1A(1000mA)
mA mA
When there are FX3UC or FX2NC Series extension equipment ,
or , connect them first, and then connect the FX
2NC-CNV-IF.
When the capacity is still insufficient:
Adopt the connection configuration shown in a) above (but the FX
2NC-CNV-IF is not allowed), connect
the extension power supply unit (FX
3UC-1PS-5V) , and then examine the entire configuration.
I/O extension
devices
Special function
devices
FX3UC-1PS-5V
FX
2NC-CNV-IF
FX
2N I/O
FX
0N I/O
FX
3U/FX2N special function
FX
0N special function
FX
3UC special function
FX
2NC special function
FX
2NC I/O
Proceed to
1) above.
mA
1A(1000mA)
mA
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