FX
3U
Series Programmable Controllers
User’s Manual - Hardware Edition
114
6 Examination of System Configuration
6.6 Expansion of FX2N Series I/O Powered Extension Unit (Calculation of Current Consumption)
6.6.2
When special extension devices are also added (calculation of current consumption)
1
Select an input/output powered extension unit.
→
For data on the number of input/output occupied points and current consumption of each type,
refer to Section 6.8.
2
Enter the specifications for the products to be added.
Enter the data for the input/output extension blocks and special function units/blocks to be con-
nected to the input/output powered extension unit, and calculate the current.
→
For data on the number of input/output occupied points and current consumption of each type,
refer to Section 6.8.
*1.
When connecting the FX
3U
-1PSU-5V extension power supply unit to a system where the nearest upstream unit to
the FX
3U
-1PSU-5V is input/output powered extension unit, also enter the current consumption and number of
occupied I/O points for the input extension blocks (including FX
2N
-8ER-ES/UL and FX
2N
-8ER) that are connected
to the FX
3U
-1PSU-5V.
*2.
A maximum of 8 special function units/blocks are connectable, including the main unit and extension power supply
unit.
Power
supply
classification
Classification
Number of
connected
units
Type
Number of
input/output
points
[points]
Capacity of built-in power
supply
5V DC power
supply [mA]
24V DC service
power supply
[mA]
With built-in
power supply
Input/output
powered
extension unit
−
FX
2N
-
Example of entry
→
FX
2N
-48ER-ES/UL
48
690
460
Power
supply
classification
Classification
Number of
connected
units
Type
Number of
input/output
points [points]
Calculation of current
consumption of built-in power
supply
5V DC power
supply [mA]
24V DC power
supply [mA]
Enter the
products
connected to
the input/
output
powered
extension unit
Input/output
extension block
*1
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
FX
2N
-
−
Special function
unit/block
8
*2
FX
0N/
FX
2N
/FX
3U
-
FX
0N/
FX
2N
/FX
3U
-
FX
0N/
FX
2N
/FX
3U
-
FX
0N/
FX
2N
/FX
3U
-
FX
0N/
FX
2N
/FX
3U
-
FX
0N/
FX
2N
/FX
3U
-
FX
0N/
FX
2N
/FX
3U
-
FX
0N/
FX
2N
/FX
3U
-
Calculate the totals
3
3-
1
3-
2
3-
3
D1
4
D2
E
4-
1
4-
2
4-
3
Содержание FX2-16E series
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